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CA2296597A1 - Process for producing surface-finished molded parts consisting of nonwoven fabrics - Google Patents

Process for producing surface-finished molded parts consisting of nonwoven fabrics Download PDF

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Publication number
CA2296597A1
CA2296597A1 CA002296597A CA2296597A CA2296597A1 CA 2296597 A1 CA2296597 A1 CA 2296597A1 CA 002296597 A CA002296597 A CA 002296597A CA 2296597 A CA2296597 A CA 2296597A CA 2296597 A1 CA2296597 A1 CA 2296597A1
Authority
CA
Canada
Prior art keywords
resin
adhesive
nonwoven fabric
process according
formaldehyde
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.)
Granted
Application number
CA002296597A
Other languages
French (fr)
Other versions
CA2296597C (en
Inventor
Franz-Josef Muller
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.)
Hexion GmbH
Original Assignee
Bakelite AG
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 Bakelite AG filed Critical Bakelite AG
Publication of CA2296597A1 publication Critical patent/CA2296597A1/en
Application granted granted Critical
Publication of CA2296597C publication Critical patent/CA2296597C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B32B5/26—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 another layer next to it also being fibrous or filamentary
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B2037/1253—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives curable adhesive
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • B32B2038/0048—Annealing, relaxing
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0076—Curing, vulcanising, cross-linking
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The invention concerns a process for producing surface-finished molded parts consisting of nonwoven fabrics by coating, in which the coating of the surface(s) of nonwoven fabric molds to be finished is carried out with a duroplastic resin or resin/hardener mixture in conjunction with a lamination and the parts thus produced are heated to temperatures that are above the melting point and above the start temperature of the hardening reaction of the duroplastic resin used and cooled after the coating has hardened.

Claims (11)

1. Process for producing surface finished molded parts consisting of nonwoven fabrics by coating the surface(s) to be finished with a laminating material or a duroplastic coating substance, characterized therein that a duroplastic resin or resin/hardener mixture, adhesive free at room temperature, is used as adhesive.
2. Process according to claim 1, characterized therein that a laminating material, provided with a duroplastic resin as adhesive that can be hardened with formaldehyde, is applied in a continuous production as endless sheeting to the prefabricated or presolidified nonwoven fabric containing a resin that can be hardened with formaldehyde and a hardener releasing formaldehyde in heat and the article obtained is then hardened under pressure at a temperature that is above the start temperature of the hardening reaction of the binding agent used in the nonwoven fabric and that of the adhesive, whereby the formaldehyde being released from the hardening reaction of the binding agent is used as hardener for the adhesive.
3. Process according to claim 1, characterized therein that a laminating material, provided with a duroplastic resin as adhesive that can be hardened with formaldehyde, is applied in a continuous production as endless sheeting to the presolidified nonwoven fabric containing a resin that releases formaldehyde in heat or nonwoven fabric that is only prefabricated, and the article obtained is then tempered under pressure at a temperature that is above the melting temperature of the adhesive and, if necessary, above the binding agent used in the nonwoven fabric, then cooled and subsequently stamped and cut to size, the stamped or cut article is then hardened under pressure and while being formed at a temperature that is above the start temperature of the hardening reaction of the binding agent used in the nonwoven fabric and that of the adhesive, whereby the formaldehyde being released from the hardening reaction of the binding agent is used as hardener for the adhesive.
4. Process according to claim 1, characterized therein that a laminating material, provided with a duroplastic resin as adhesive, is applied in a discontinuous production in cut form to the prefabricated or presolidified and cut nonwoven fabric containing phenolic resin and hardener and the article obtained is then hardened at a temperature that is above the start temperature of the hardening reaction of the binding agent used in the nonwoven fabric and that of the adhesive, whereby the formaldehyde being released from the hardening reaction of the binding agent is used as hardener for the adhesive.
5. Process according to claim 1, characterized therein that a laminating material provided with a resin/hardener mixture as adhesive is applied in cut form to a hardened and formed molded part consisting of a nonwoven fabric and that the article obtained is heated to above the start temperature of the hardening reaction of the resin/hardener mixture.
6. Process according to one of the claims 1 to 5, characterized therein that the resin used as an adhesive is a hexamethylenetetramine-free novolak.
7. Process according to one of the claims 1 to 6, characterized therein that the resin used as adhesive is a modified phenolic resin.
8. Process according to claim 7, characterized therein that the resin used as adhesive is a phenolic resin modified with phenoxy resin.
9. Process according to one of the claims 1 to 8, characterized therein that the resin or resin/hardener mixture is applied to the laminating material in powder form.
10. Process according to claim 9, characterized therein that the melting viscosity of the resin or resin-hardener mixture, measured at 175°C, is less than 1000 mPas.
11. A molded part consisting of nonwoven fabrics made according to one or more of the claims 1 - 10.
CA2296597A 1999-01-25 2000-01-20 Process for producing surface-finished molded parts consisting of nonwoven fabrics Expired - Fee Related CA2296597C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19902669.6 1999-01-25
DE19902669 1999-01-25

Publications (2)

Publication Number Publication Date
CA2296597A1 true CA2296597A1 (en) 2000-07-25
CA2296597C CA2296597C (en) 2011-04-12

Family

ID=7895207

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2296597A Expired - Fee Related CA2296597C (en) 1999-01-25 2000-01-20 Process for producing surface-finished molded parts consisting of nonwoven fabrics

Country Status (14)

Country Link
EP (1) EP1022370B1 (en)
KR (1) KR100748826B1 (en)
AR (1) AR023343A1 (en)
AT (1) ATE433511T1 (en)
BR (1) BR0000155B1 (en)
CA (1) CA2296597C (en)
CZ (1) CZ300663B6 (en)
DE (2) DE59915034D1 (en)
ES (1) ES2325007T3 (en)
MY (1) MY140899A (en)
PL (1) PL204470B1 (en)
SG (1) SG81343A1 (en)
TR (3) TR200801782A1 (en)
ZA (1) ZA997835B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7994243B2 (en) 2006-08-07 2011-08-09 Dynea Oy Stable aqueous novolac dispersion

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005061222A1 (en) * 2005-12-20 2007-06-21 Dynea Erkner Gmbh Vegetable fiber, fiber-based shaped articles and methods of making novolak-treated vegetable fibers
KR102466615B1 (en) * 2021-07-27 2022-11-16 코오롱글로텍주식회사 Composite Material Flame Retardant Car Battery Cover and manufacturing method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1243545A (en) * 1958-10-06 1960-10-14 Owens Corning Fiberglass Corp Fibro-cellular product and its manufacturing process
US4061823A (en) * 1975-12-11 1977-12-06 Westinghouse Electric Corporation Highly machinable cotton-phenolic base for decorative assemblies
US4264655A (en) * 1976-04-05 1981-04-28 Desoto, Inc. Encapsulated impregnated rovings
US5217766A (en) * 1990-09-06 1993-06-08 United Technologies Corporation Stabilized complex composite preforms
DE4105261C2 (en) * 1991-02-20 1994-03-31 Lignotock Gmbh Process for laminating spatially deformed carrier parts
EP0657257B1 (en) * 1993-12-13 1997-12-10 Canadian Forest Products Ltd. Wood based composite
DE19712509A1 (en) * 1997-03-25 1998-10-01 Bakelite Ag Thermosetting fiber molded parts and process for their production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7994243B2 (en) 2006-08-07 2011-08-09 Dynea Oy Stable aqueous novolac dispersion

Also Published As

Publication number Publication date
TR200801781A2 (en) 2008-11-21
EP1022370A3 (en) 2003-04-02
BR0000155B1 (en) 2010-04-06
KR20000076519A (en) 2000-12-26
ZA997835B (en) 2000-07-04
CA2296597C (en) 2011-04-12
DE59915034D1 (en) 2009-07-23
PL337987A1 (en) 2000-07-31
EP1022370A2 (en) 2000-07-26
TR200801782A1 (en) 2010-06-21
KR100748826B1 (en) 2007-08-13
DE10000689A1 (en) 2000-07-27
EP1022370B1 (en) 2009-06-10
MY140899A (en) 2010-01-29
BR0000155A (en) 2000-11-07
CZ300663B6 (en) 2009-07-15
AR023343A1 (en) 2002-09-04
CZ2000291A3 (en) 2000-09-13
ES2325007T3 (en) 2009-08-21
SG81343A1 (en) 2001-06-19
TR200000225A2 (en) 2000-08-21
PL204470B1 (en) 2010-01-29
ATE433511T1 (en) 2009-06-15

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EEER Examination request
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Effective date: 20170120