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JPH08510180A - Stretched weldable strips of plastic - Google Patents

Stretched weldable strips of plastic

Info

Publication number
JPH08510180A
JPH08510180A JP6524916A JP52491694A JPH08510180A JP H08510180 A JPH08510180 A JP H08510180A JP 6524916 A JP6524916 A JP 6524916A JP 52491694 A JP52491694 A JP 52491694A JP H08510180 A JPH08510180 A JP H08510180A
Authority
JP
Japan
Prior art keywords
strip
strips
plastic
absorbing particles
particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6524916A
Other languages
Japanese (ja)
Inventor
ヴリート， アリー ヘンドリック フランス ヴァン
コルネリス マルティヌス ホリックス，
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzo Nobel NV
Original Assignee
Akzo Nobel NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akzo Nobel NV filed Critical Akzo Nobel NV
Publication of JPH08510180A publication Critical patent/JPH08510180A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1425—Microwave radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1435—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1477—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier
    • B29C65/1483—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier coated on the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3608—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements
    • B29C65/3612—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements comprising fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73711—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B29C70/64—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres the filler influencing the surface characteristics of the material, e.g. by concentrating near the surface or by incorporating in the surface by force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/52—Mulches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/005—Oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/007—Narrow strips, e.g. ribbons, tapes, bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/727—Fastening elements
    • B29L2031/7276—Straps or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/212—Electromagnetic interference shielding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Composite Materials (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

(57)【要約】 １０〜５００００ＭＨｚの周波数範囲内の電磁放射線に対して、細長片を形成するプラスチックよりも明らかに高い吸収能を有する少なくとも１つの表面を有することを特徴とするプラスチックからなる延伸された溶接可能な細長片。この細長片はその端部を介してそれ自体と、吸収粒子を含有する表面層により溶接されていてもよい。交差し交差点で電磁放射線により互いに溶接される細長片から、マットを製造することができる。   (57) [Summary] Stretched weldable strips of plastic having at least one surface having a clearly higher absorption capacity for electromagnetic radiation in the frequency range of 10 to 50000 MHz than the plastics forming the strips. One piece. The strip may be welded via its ends to itself by means of a surface layer containing absorbing particles. Mats can be made from strips that intersect and are welded together by electromagnetic radiation at the intersections.

Description

【発明の詳細な説明】 プラスチックからなる延伸された溶接可能な細長片 本発明は、プラスチックからなる延伸された溶接可能な細長片およびそれから 製造した構造物に関する。 このような細長片は、たとえばドイツ国特許出願公開第２２４６０５１号から マットの製造のために公知である。この細長片は、異なる融点を有する２つのポ リマー層からなり、その際一方のポリマーは強度保有体を形成し、従って延伸さ れているが、他方のポリマーは低い融点を有し細長片を溶接するために使用され る。使用すべきプラスチックの選択は問題がある。これらの少なくとも二重層の 細長片を次に延伸する際にひび割れが生じ、むしろ溶接すべき層がはがれること がある。さらに、相当するプラスチックの選択は、僅かな組に制限されている。 それというのも通例互いに良好に付着するようなプラスチックの組のみが問題に なり、これらの組においては双方の融点の差はできるかぎり大きいからである。 融点の差を過度に小さく選択すると、細長片の強度を保証するポリマーの脱配向 およびそれとともに細長片の強度減少が起きる。これは融点の差が小さいほど、 ますます大きい。 本発明の意味においては、細長片なる概念は、一方向にこの方向に対して直角 に延びる他の両方の方向よ りも明らかに大きい寸法を有するようなすべての形成物を包括するものとする。 この限りにおいて、本発明の意味における細長片とは、たとえばモノフィラメン ト、マルチフィラメントまたはバンドであると理解できる。 本発明の課題は、上記の欠点を少なくとも十分に除去することである。大きい 費用なしに互いに溶接可能である細長片を利用すべきである。このような細長片 を溶接する場合、該細長片はできるだけ僅かな強度損失を受けるべきである。 この課題は、プラスチックからなる延伸された溶接可能な細長片において、こ れが少なくとも、１０〜５００００ＭＨｚの周波数範囲内の電磁放射線に対し、 細長片を形成するプラスチックよりも明らかに高い吸収能を有する吸収粒子が埋 込まれている表面を有することによって解決される。 本発明による細長片は、二層細長片の製造の際に通常使用される方法により製 造することができるが、その際完成した細長片は今や全断面にわたり同じプラス チックを有する。従って、細長片の強度およびモジュラスを高めるための延伸は 、ひび割れおよびはがれの危険なしに可能である。溶接する場合、埋込まれた吸 収粒子に基ずき殆どこの粒子を含有する範囲だけが溶融するので、吸収粒子を含 有する範囲の外部では細長片の脱配向は十分に、むしろたいてい全く起きないの で、細長片が溶接した後に有すべき強度は、現在公知の細長片よりも著しく正確 に予め決定することができる。 プラスチック表面への吸収粒子の埋込みは既に公知である（ヨーロッパ特許（ ＥＰ−Ａ）０２７４３６４号）が、これは成形部品を内部に有する構造であり、 従ってその性質は重要でない成形部品である。目的は単に経済的な溶接方法を提 供することである。本発明の功績は、公知方法を適用する場合に互いに溶接され た細長片の強度を良好に予め決定できることを認識したことである。 本発明の細長片は殊に、吸収粒子が細長片を形成するプラスチックの導電率よ りも少なくとも３倍高い、殊に少なくとも１０倍高い導電率を有することを特徴 とする。 望ましくは、細長片は吸収粒子を含有する表面層の層厚よりも少なくとも１０ 倍大きい厚さを有する。 １つまたは幾つかのモノフィラメントまたはマルチフィラメントからなる細長 片は、特に有利であることが判明した。長方形の断面を有する細長片は殊に有利 であることが判明し、その際断面を形成する長方形の幅はこの長方形の高さの少 なくとも５倍大きい。本発明による細長片は殊に、使用の際端部が互いに溶接さ れる、プラスチックからなる包装用バンドとして適当である。殊に包装用バンド においては、溶接箇所の範 囲内の強度が弱化されていないことが重要である。この限りにおいて、本発明の 対称は、端部を介して自然に吸収粒子を含有する全表面層にわたり溶接されてい ることにより優れている細長片である。この場合、細長片の両方の表面が吸収粒 子を含有することが推奨される。溶接はこの場合、細長片の両端を押し付け、吸 収粒子がとくに多量のエネルギーを吸収する周波数範囲内の電磁放射線で衝撃す ることにより実施される。この場合通例、溶接を実施するため細長片をたとえば ２．４５ないしは５．８ＧＨｚの当局の許容周波数において約１０〜１００ミリ 秒、電磁放射線に曝せば十分である。 本発明による細長片はおもに、ドイツ国特許出願公開第２２４６０５１号明細 書に記載されているようなマットの製造のために適当である。本発明によるマッ トは、交差し交差点で互いに溶接されている細長片からなりかつ吸収粒子を含有 する全表面層にわたり溶接されている細長片を含有することを特徴とする。細長 片を堆積の形式に重ねる場合には、少なくとも１か所に、吸収粒子を含有する表 面層をこの細長片に載せた他の細長片に対する接触層として有する本発明による 細長片が存在すれば十分である。ここでも、プレス加工および高周波照射の衝撃 により溶接を簡単に、溶接後に殆ど吸収粒子含有層の範囲だけに溶接に一致する ポリマー構造が存在するように実施することができる。 マットの強度を高めるために、少なくとも多数、とくにすべての細長片に片側ま たは両側に配置された（たとえば多層マットの場合）吸収粒子含有層を設けるこ とが推奨される。マットを織物の形の細長片から製造する場合には、細長片は有 利には両側で表面層中に吸収粒子を有する。吸収粒子含有表面層は、たんに数ｍ ｍ／１０またはそれ以下、たとえば１０〜４０μｍの厚さを有すればよい。溶接 を実施した後、格子マットは、一方向に存在する細長片またはバンドの強度の合 計と殆ど同じ強度を有する。この場合、溶接を実施するためのバンドは、たとえ ば２．４５〜５．８ＧＨｚの電磁放射線に約１０〜１００ミリ秒曝せば十分であ る。 本発明によるマットは、おもにハンモックの床安定化のため、ごみ集積所の底 層として、または鉄道車輛の線路基板に適当である。地面にこれらマットの縁を 固定するために、細長片は端部に輪を有することができ、この輪は簡単に、本発 明による細長片をその端部で折り曲げ、次にそれぞれの端部を細長片自体と、た とえば電磁放射線により、輪が生じるように結合することにより製造することが できる。それ故、本発明によるマットは、マットを形成する細長片の少なくとも 幾つかはその末端に輸を有することを特徴とする。 本発明による細長片の溶接は、たいてい明らかに１秒以下の非常に短い時間に 行なわれる。電磁放射線の 熱への変換は、殆ど専ら、吸収粒子が埋込まれている範囲内で行なわれるので、 たんにプラスチックのこの範囲だけが溶融液に変換され、それで溶接結合の範囲 は吸収粒子含有表面層の厚さを選択することによって良好に予め決定することが できる。従って、溶接結合を形成するために利用される範囲は、吸収粒子の埋込 深さによって、かなり正確に決定することができ、細長片の他の範囲はせいぜい 取るに足らぬ加熱を受けるにすぎないので、その配向状態および／または結晶化 度は維持することができる。 従って、本発明による細長片の適用は、たとえば配向によって得られるプラス チックの高い強度が細長片からなる溶接構造に望ましい時には常に推奨される、 それというのも溶接することにより周知のように脱配向の起きる溶接範囲をかな り正確に予め決定することができるので、本発明による細長片を介して形成され る溶接構造の強度を調節することができるからである。 プラスチック細長片の強度の増加は、公知方法で細長片を延伸することによっ て達成され、これによりプラスチックポリマーの配向が明らかに向上する。 溶接を実施する際溶接箇所の極限化にとり決定的なのは、吸収粒子の埋込量で ある。この場合、吸収粒子を、隣接する吸収粒子間の距離が吸収粒子を含有する 表面層の厚さよりも小さいような量で溶接すべき素子の表面に埋込むのが特に有 利であることが判明した。 隣接する吸収粒子間の距離が小さいほど、発熱はますます吸収粒子含有表面層に 集中する。この場合、埋込まれた吸収粒子を有する表面層が、細長片を形成して いるプラスチックの導電率の少なくとも３倍高い導電率を有するのがとくに有利 である。本発明により設定された課題は、吸収粒子の導電率が細長片の導電率の 少なくとも１０倍高い導電率を有する場合、特に有利に解決される。この場合、 吸収粒子としては殊にカーボンック粒子、磁鉄鉱粉末および／または金属粉末が 特に有利であることが判明した。他の適当な吸収粒子は、ＰＣＴ出願（ＷＯ９１ ／１９０３６）に記載されている。吸収粒子含有表面層の厚さによって、溶接範 囲を良好に予め決定することができる。そのために、溶接を実施するためには薄 い吸収粒子含有表面層が望まれる。層厚は、大きい細長片の場合望ましくは数ｍ ｍの範囲内に選択される。 吸収粒子の埋込みは、これをたとえば、吸収粒子を溶接すべき細長片の表面に 薄い層で設けて表面に押し込むように行なうことによって達成することができる 。このためには、差し当たりフィルムを製造し、次に吸収粒子を押し込み、その 後フィルムから細長片を切り離すのがとくに有利である。押し込みは、たとえば ローラによって行なうことができる。 本発明による細長片は、原則的にすべてのノズル通路に同じポリマーが供給さ れるが、少なくとも外側層 を形成するためのポリマー流には吸収粒子が混合される多成分紡糸ノズルによっ て入手するのがとくに有利である。溶接のために細長片の１つまたは幾つかの表 面が使用されるかどうかにより、それに対応して表面層に吸収粒子を設けること ができる。 本発明により細長片をたんに片側溶接する場合には、これら細長片は単に中間 層構造を必要とし、両側溶接の際にはもちろん２つの表面が吸収粒子を含有すべ きであり、それ故これには３層構造が適当である。殊に細長片がモノフィラメン トであるときには、サイド．バイ．サイド配置、殊にコア．シエル配置のバイコ ンポネントファイバが適当であるが、この場合双方の成分は同じポリマーを含有 し、たんに溶接すべき層に吸収粒子が混入されている。Detailed Description of the Invention             Stretched weldable strips of plastic   The present invention is directed to a drawn weldable strip of plastic and It concerns a manufactured structure.   Such strips are disclosed, for example, in German patent application DE 2246051. It is known for the production of mats. This strip is made up of two porosities with different melting points. It consists of a limmer layer, where one polymer forms a strength carrier and is therefore stretched. However, the other polymer has a low melting point and is used to weld strips. It The choice of plastic to use is problematic. Of these at least double layers The strips will crack during the next stretch, rather the layers to be welded will peel off There is. Moreover, the selection of corresponding plastics is limited to a few sets. That's because usually only plastic pairs that stick together well are a problem This is because the difference between the melting points of these pairs is as large as possible. Deorientation of the polymer ensuring the strength of the strips if the melting point difference is chosen too small And with it a decrease in strip strength occurs. This is because the smaller the difference in melting point, Increasingly large.   In the sense of the present invention, the concept of a strip is in one direction perpendicular to this direction. In both other directions that extend to It is intended to include all formations having significantly greater dimensions. In this respect, a strip in the meaning of the present invention means, for example, monofilamen. It can be understood as a grate, a multifilament or a band.   The object of the present invention is to eliminate at least the disadvantages mentioned above. large Strips that should be weldable to each other at no cost should be used. Such a strip When welding the strips, the strips should experience as little strength loss as possible.   This problem is encountered in drawn weldable strips of plastic. At least for electromagnetic radiation in the frequency range of 10 to 50000 MHz, Embedded with absorbent particles, which have a significantly higher absorption capacity than the plastics that form the strips. The solution is to have the surface embedded.   The strip according to the invention is produced by the method normally used in the production of bilayer strips. It can be made, but the finished strip is now the same plus over the entire cross section. Have ticks. Therefore, stretching to increase the strength and modulus of the strip is Possible without the risk of cracking and peeling. When welding, the embedded suction Based on the collected particles, almost only the range containing these particles melts. Outside of the range, deorientation of the strips is sufficient, and almost never at all The strength that a strip should have after welding is significantly more accurate than currently known strips. Can be predetermined.   The embedding of absorbent particles on plastic surfaces is already known (European patent ( EP-A) 0274364) has a structure having a molded part inside, Therefore, its properties are insignificant molded parts. The aim is simply to provide an economical welding method. Is to provide. The merit of the present invention is that they are welded to each other when applying the known method. It has been recognized that the strength of strips can be well pre-determined.   The strips of the present invention are particularly sensitive to the conductivity of the plastic from which the absorbing particles form the strips. Characterized by having a conductivity which is at least 3 times higher, in particular at least 10 times higher And   Desirably, the strips are at least 10 times thicker than the layer thickness of the surface layer containing absorbing particles. It has twice the thickness.   Elongation consisting of one or several monofilaments or multifilaments Pieces have proven to be particularly advantageous. A strip with a rectangular cross section is particularly advantageous And the width of the rectangle forming the cross section is less than the height of this rectangle. At least five times larger. The strips according to the invention are in particular end-to-end welded together during use. It is suitable as a plastic wrapping band. Especially for packing bands In the case of It is important that the strength of the enclosure is not weakened. To this extent, The symmetry is welded across the entire surface layer which naturally contains absorbing particles through the edges. It is a strip that is superior to the others. In this case, both surfaces of the strip are absorbing particles It is recommended to include offspring. In this case, welding is performed by pressing both ends of the strip and sucking it. Shock particles are bombarded with electromagnetic radiation in the frequency range where they absorb particularly large amounts of energy. It is carried out by In this case it is customary, for example, to apply a strip to carry out the welding. Approximately 10 to 100 mm at the allowable frequency of the authorities of 2.45 or 5.8 GHz Seconds, exposure to electromagnetic radiation is sufficient.   The strip according to the invention is mainly described in DE-A 2246051. Suitable for the production of mats as described in the book. The map according to the invention The grate consists of strips that intersect and are welded to each other at the intersection and contain absorbent particles Characterized in that it contains strips that are welded over the entire surface layer. Slender If the pieces are stacked in the form of a stack, a table containing absorbing particles in at least one place. According to the invention having a face layer as a contact layer for other strips mounted on this strip The presence of strips is sufficient. Again, the impact of pressing and high frequency irradiation Makes welding easier, and after welding almost matches only the area of the absorbing particle-containing layer It can be carried out such that a polymer structure is present. To increase the strength of the mat, at least a large number, especially on all strips Or to provide a layer containing absorbent particles located on both sides (for example in the case of a multilayer mat). Is recommended. If the mat is manufactured from textile strips, the strips are Advantageously, it has absorbing particles in the surface layer on both sides. Absorbent particle-containing surface layer is only a few meters It may have a thickness of m / 10 or less, for example 10 to 40 μm. welding After carrying out, the grid mat is combined with the strength of the strips or bands present in one direction. It has almost the same strength as the total. In this case, the band for carrying out the welding is For example, exposure to electromagnetic radiation at 2.45 to 5.8 GHz for about 10 to 100 milliseconds is sufficient. It   The mat according to the present invention is mainly used for stabilizing the floor of a hammock so that Suitable as a layer or for railroad vehicle track boards. The edges of these mats on the ground To secure, the strip can have a ring at the end, which can easily Bend the strip of light at its ends, then tap each end with the strip itself. For example, by electromagnetic radiation, it can be manufactured by combining to form a ring. it can. Therefore, the mat according to the invention comprises at least the strips forming the mat. Some are characterized by having an infusion at their end.   Welding of strips according to the present invention usually takes very short times, obviously less than 1 second. Done. Of electromagnetic radiation Since the conversion to heat is almost exclusively performed within the range where the absorbing particles are embedded, Only this range of plastics is converted to melt, so the range of welded joints Can be well predetermined by choosing the thickness of the absorbing particle-containing surface layer it can. Therefore, the range utilized to form the weld bond is the embedding of the absorbing particles. Depth can be determined fairly accurately, other ranges of strips at best Its orientation state and / or crystallization as it is only insignificantly heated The degree can be maintained.   The application of strips according to the invention is therefore a plus obtained, for example, by orientation. Recommended whenever high strength of tic is desired for strip welded structures, This is because, as is well known, by welding, the welding range where deorientation occurs Can be accurately pre-determined so that it is formed through the strip according to the invention. This is because the strength of the welded structure can be adjusted.   Increasing the strength of plastic strips is accomplished by stretching the strips in a known manner. Achieved, which clearly improves the orientation of the plastic polymer.   When performing welding, what is crucial for limiting the weld location is the amount of embedded absorbing particles. is there. In this case, the absorbing particles, the distance between adjacent absorbing particles contains the absorbing particles It is especially advantageous to embed in the surface of the element to be welded in an amount that is smaller than the thickness of the surface layer. Turned out to be profitable. The smaller the distance between adjacent absorbing particles, the more heat is generated in the surface layer containing absorbing particles. concentrate. In this case, the surface layer with embedded absorbent particles forms a strip. It is particularly advantageous to have a conductivity that is at least 3 times higher than that of the plastic Is. The problem set by the present invention is that the conductivity of the absorbing particles is the conductivity of the strip. A particularly advantageous solution is to have a conductivity that is at least 10 times higher. in this case, Carbon particles, magnetite powder and / or metal powder can be used as absorbing particles. It turned out to be particularly advantageous. Other suitable absorbing particles are described in PCT application (WO 91 / 19036). Depending on the thickness of the surface layer containing absorbing particles, the welding range The enclosure can be well predetermined. Therefore, it is A surface layer containing absorbing particles is desired. Layer thickness is preferably a few meters for large strips It is selected within the range of m.   Embedding absorbent particles can be done, for example, on the surface of the strip to which the absorbent particles are to be welded. It can be achieved by providing a thin layer and pressing into the surface . For this purpose, first of all, a film is produced, then the absorbent particles are pressed in, It is particularly advantageous to separate the strip from the back film. For example, press It can be done by rollers.   The strip according to the invention essentially ensures that all nozzle passages are supplied with the same polymer. But at least the outer layer A multi-component spinning nozzle in which absorbent particles are mixed with the polymer stream to form the It is especially advantageous to obtain it. One or several tables of strips for welding Providing absorbent particles in the surface layer correspondingly depending on whether the surface is used Can be.   If the strips are simply one-sided welded according to the invention, these strips are simply A layered structure is required and, of course, in the case of double-sided welding, the two surfaces should contain absorbing particles. Therefore, a three-layer structure is suitable for this. Especially the strips are monofilamen When it is a by. Side placement, especially the core. Ciel Arranged Baiko Component fibers are suitable, but in this case both components contain the same polymer. However, the absorbing particles are simply mixed in the layer to be welded.

Claims (1)

【特許請求の範囲】 １．プラスチックからなる延伸された溶接可能な細長片において、１０〜５００ ００ＭＨｚの周波数範囲内野電磁放射線にたいして、細長片を形成するプラスチ ックよりも明らかに高い吸収能を有する吸収粒子が埋め込まれている少なくとも １つの表面を有することを特徴とするプラスチックからなる延伸された溶接可能 な細長片。 ２．吸収粒子が、細長片を形成するプラスチックの導電率の少なくとも３倍高い 導電率を有することを特徴とする請求項１記載の細長片。 ３．吸収粒子が、細長片を形成するプラスチックの導電率の少なくとも１０倍高 い導電率を有することを特徴とする請求項２記載の細長片。 ４．細長片の厚さが、吸収粒子を含有する表面層の層厚の少なくとも１０倍大き いことを特徴とする請求項１，２または３記載の細長片。 ５．表面に吸収粒子が埋込まれているすくなくとも１つのモノフィラメントから 成ることを特徴とする請求項１〜４のいずれか１項記載の細長片。 ６．少なくとも１つのマルチフィラメント糸からなることを特徴とする請求項１ 〜４のいずれか１項記載の細長片。 ７．長方形の断面を有し、その際長方形断面の幅がそ の高さよりも少なくとも５倍大きいことを特徴とする請求項１から〜６のいずれ か１項記載の細長片。 ８．その端部を介してそれ自体と、吸収粒子を含有する表面層と溶接されている ことを特徴とする請求項１〜７のいずれか１項記載の細長片。 ９．請求項１〜７の１つまたは幾つか記載の細長片を含有し、該細長片が吸収粒 子を含有する表面層を介して互いに溶接されていることを特徴とする、交差しり 、交差点で互いに溶接されている細長片からなるマット。 １０．マットを形成する細長片の少なくとも幾つかがその端部に輪を有すること を特徴とする請求項９記載のマット。[Claims] 1. In stretchable weldable strips of plastic, between 10 and 500 Plastics forming strips against electromagnetic radiation in the 00MHz frequency range At least embedded with absorbent particles that have a significantly higher absorption capacity than Stretched weldable made of plastic characterized by having one surface Strips. 2. The absorbing particles are at least 3 times as high as the conductivity of the plastic forming the strip The strip of claim 1 having electrical conductivity. 3. The absorbing particles are at least 10 times as high as the conductivity of the plastic forming the strip. The strip of claim 2 having a high electrical conductivity. 4. The thickness of the strip is at least 10 times greater than the layer thickness of the surface layer containing the absorbing particles. The strip according to claim 1, 2 or 3, characterized in that 5. From at least one monofilament with absorbent particles embedded on the surface The strip according to any one of claims 1 to 4, wherein the strip is formed. 6. 2. At least one multifilament yarn consisting of at least one multifilament yarn. The strip according to any one of to 4. 7. It has a rectangular cross section, the width of the rectangular cross section being the same. 7. At least 5 times larger than the height of any one of claims 1 to 6. Or the strip according to item 1. 8. It is welded through its ends to itself and to the surface layer containing the absorbing particles The strip according to any one of claims 1 to 7, characterized in that 9. A strip containing one or more of the preceding claims, wherein the strip is an absorbent particle. Crossed edges, characterized in that they are welded to each other through a surface layer containing the child , Mats made of strips that are welded together at intersections. 10. At least some of the strips forming the mat have loops at their ends The mat according to claim 9, characterized in that
JP6524916A 1993-05-13 1994-05-06 Stretched weldable strips of plastic Pending JPH08510180A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4316015.8 1993-05-13
DE4316015A DE4316015A1 (en) 1993-05-13 1993-05-13 Stretched, weldable strips of plastic and structures made from them
PCT/EP1994/001455 WO1994026503A1 (en) 1993-05-13 1994-05-06 Weldable drawn plastic strip and structures produced from such strip

Publications (1)

Publication Number Publication Date
JPH08510180A true JPH08510180A (en) 1996-10-29

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EP (1) EP0697953A1 (en)
JP (1) JPH08510180A (en)
CA (1) CA2162686A1 (en)
DE (1) DE4316015A1 (en)
SG (1) SG67871A1 (en)
WO (1) WO1994026503A1 (en)

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Publication number Publication date
SG67871A1 (en) 1999-10-19
EP0697953A1 (en) 1996-02-28
DE4316015A1 (en) 1994-11-17
CA2162686A1 (en) 1994-11-24
WO1994026503A1 (en) 1994-11-24

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