[go: up one dir, main page]

CN102470578A - 用于吹塑制品的聚苯乙烯预成形体设计 - Google Patents

用于吹塑制品的聚苯乙烯预成形体设计 Download PDF

Info

Publication number
CN102470578A
CN102470578A CN2010800336934A CN201080033693A CN102470578A CN 102470578 A CN102470578 A CN 102470578A CN 2010800336934 A CN2010800336934 A CN 2010800336934A CN 201080033693 A CN201080033693 A CN 201080033693A CN 102470578 A CN102470578 A CN 102470578A
Authority
CN
China
Prior art keywords
preform
main body
external diameter
body external
neck
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
CN2010800336934A
Other languages
English (en)
Inventor
孙鹿邑
M·勒兰德
J·阿圭里
T·哈里斯
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.)
Fina Technology Inc
Original Assignee
Fina Technology Inc
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 Fina Technology Inc filed Critical Fina Technology Inc
Publication of CN102470578A publication Critical patent/CN102470578A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/06—Making preforms by moulding the material
    • B29B11/08—Injection moulding
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0772—Closure retaining means
    • B29C2949/0773—Threads
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0777—Tamper-evident band retaining ring
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/0811—Wall thickness
    • B29C2949/0817—Wall thickness of the body
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/082—Diameter
    • B29C2949/0826—Diameter of the body
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/0829—Height, length
    • B29C2949/0831—Height, length of the neck
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0861—Other specified values, e.g. values or ranges
    • B29C2949/0872—Weight
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3064—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • 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
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/08—PVDC, i.e. polyvinylidene chloride
    • 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
    • B29K2031/00—Use of polyvinylesters or derivatives thereof as moulding material
    • B29K2031/04—Polymers of vinyl acetate, e.g. PVAc, i.e. polyvinyl acetate
    • 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
    • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
    • B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • 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
    • B29K2059/00—Use of polyacetals, e.g. POM, i.e. polyoxymethylene or derivatives thereof, as moulding material
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/006—PBT, i.e. polybutylene terephthalate
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/04—Polyesters derived from hydroxycarboxylic acids
    • B29K2067/046—PLA, i.e. polylactic acid or polylactide
    • 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • 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
    • B29K2079/00—Use of polymers having nitrogen, with or without oxygen or carbon only, in the main chain, not provided for in groups B29K2061/00 - B29K2077/00, as moulding material
    • B29K2079/08—PI, i.e. polyimides or derivatives thereof
    • B29K2079/085—Thermoplastic polyimides, e.g. polyesterimides, PEI, i.e. polyetherimides, or polyamideimides; Derivatives thereof
    • 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
    • B29K2081/00—Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
    • B29K2081/04—Polysulfides, e.g. PPS, i.e. polyphenylene sulfide or derivatives thereof
    • 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
    • B29K2081/00—Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
    • B29K2081/06—PSU, i.e. polysulfones; PES, i.e. polyethersulfones or derivatives thereof
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/253—Preform
    • B29K2105/258—Tubular
    • 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
    • B29K2995/0049—Heat shrinkable
    • 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
    • B29K2995/0065—Permeability to gases
    • B29K2995/0067—Permeability to gases non-permeable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1397—Single layer [continuous layer]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

本发明描述了用于注射吹塑方法的预成形体和这样的方法。所述预成形体可具有主体和颈部，其中预成形体的主体外径至多为颈部外径的95％。所述主体包含一起形成侧壁的内径和外径，侧壁厚度可大于2.0mm。本发明还披露了用于注射模塑上述预成形体的模具。

Description

用于吹塑制品的聚苯乙烯预成形体设计
技术领域
本发明一般涉及吹塑塑料的方法。具体地，本发明的实施方式涉及注射吹塑和注射拉伸吹塑苯乙烯基聚合物的预成形体。
背景技术
聚合物材料常用作包装材料，因为它们能产生良好的隔氧/隔潮效果，并且其外观和形状容易控制。塑料也用来代替玻璃制造瓶子，因为它们更轻，落下时更抗碎裂，并且更便宜。用于包装的几种常见聚合物材料是聚乙烯(PE)、聚对苯二甲酸乙二酯(PET)、聚丙烯(PP)、聚碳酸酯(PC)和聚苯乙烯(PS)。
聚苯乙烯是当今工业产量最大的热塑性树脂之一。它是每隔一个碳原子含有一个苯基的烃链。聚苯乙烯是日常生活中经常遇到的耐用、廉价的聚合物。聚苯乙烯的一些常见例子是塑料玩具、计算机外壳、泡沫包装、泡沫杯子等。
注射吹塑(IBM)是可用于生产塑料容器的技术。将熔融的聚合物注射到预成形体模具中，产生预成形体。然后加热预成形体，利用压缩气体填充给定的模具，将预成形体吹塑成最终的形状，从而制得空心容器。
注射拉伸吹塑(ISBM)是生产各种塑料容器的另一种技术。将所需粒料熔化并注射到模具中，产生预成形体。加热预成形体，然后拉伸，并吹高压气体如空气，填充给定的模具，制得空心容器。
对于每种材料，由于其包括传热系数、热容、收缩率、热变形温度等在内的物理性质不同，迫切需要设计具体的预成形体，以获得可接受的整体可加工性质和瓶子性质。
用于聚对苯二甲酸乙二酯(PET)、聚丙烯(PP)和聚碳酸酯(PC)的预成形体已得到较好的开发，它们具有自己的设计特征。人们希望有一种具有优化性能的聚苯乙烯(PS)预成形体设计，这种性能能带来良好的可加工性质、高产率、低能耗和良好的瓶子性质。
发明内容
本发明的一个实施方式是一种用于聚苯乙烯基聚合物的吹塑工艺的预成形体。所述预成形体具有颈部，所述颈部具有颈部内径和颈部外径，并具有第一颈端(E1)和第二颈端(E2)。所述颈部提供了预成形体和吹塑制品的开口端，并包含预成形体的密封部分，如螺纹部分或作为替代的盖附件(capattachment)轮廓。预成形体具有一个主体，该主体具有主体内径和主体外径，它们一起形成侧壁。该主体具有第一主体端(E2，它也是第二颈端)和封闭的第二主体端(E3)，它们一起形成第一主体长度(h1)。所述主体在第一主体端(E2)具有第一主体外径(d1)，并具有第二主体外径(d2)，所述第二主体外径小于所述第一主体外径。所述主体具有过渡区，该过渡区由主体外径从第一主体外径减小到第二主体外径的这段长度限定，主体外径等于第二主体外径的地方限定为过渡点(T)。所述主体具有从过渡点(T)到第二主体端(E3)的第二主体长度(h2)。第二主体外径至多为第一主体外径的95％，第二主体长度至多为第一主体长度的95％。过渡区的长度至少为(d1-d2)的50％。
第二主体外径可以是第一主体外径的50％-95％。第二主体长度可以是第一主体长度的60％-95％。对用于500mL吹塑瓶的31g预成形体来说，其第一主体外径可以是25.0mm-40.0mm；其第二主体外径可以是12.5mm-38.0mm；其主体外径为d2处的侧壁厚度可至少大于2.0mm或至少大于3.00mm。
预成形体材料可以是聚苯乙烯或者主要包含聚苯乙烯的聚合物混合物。预成形体可包含阻气性涂料。预成形体在吹塑过程中再加热时的收缩率可小于38％，任选小于30％。预成形体在吹塑过程中再加热时的翘曲率可小于8.5％，任选小于4.0％。
本发明的一个实施方式可以是通过吹塑预成形体形成的制品。本发明的一个实施方式可以是用于模塑预成形体的预成形体模具。
本发明的一个实施方式是形成吹塑制品的方法，所述方法包括提供聚苯乙烯基聚合物，由所述聚苯乙烯基聚合物形成预成形体。预成形体包含颈部，所述颈部具有颈部内径和颈部外径，并具有第一颈端和第二颈端。预成形体包含主体，该主体具有主体内径和主体外径，它们一起形成侧壁。该主体具有与第二颈端相连的第一主体端和封闭的第二主体端，它们一起形成第一主体长度。所述主体在第一主体端具有第一主体外径，并在距颈部至少半个主体长度的地方具有第二主体外径，所述第二主体外径小于所述第一主体外径。所述主体具有过渡区，该过渡区由主体外径从第一主体外径减小到第二主体外径的这段长度限定，主体外径等于第二主体外径的地方限定为过渡点。所述主体具有从过渡点到第二主体端的第二主体长度。第二主体外径至多为第一主体外径的95％，第二主体长度至多为第一主体长度的95％。所述方法还包括加热预成形体和将所述预成形体注射吹塑成制品。所述方法还可包括将所述预成形体注射拉伸吹塑成制品。预成形体的第二主体外径可以是预成形体的第一主体外径的50％-95％。预成形体的第二主体长度可以是预成形体的第一主体长度的60％-95％。
对于500mL、31g的预成形体，该预成形体侧壁的厚度可大于3.00mm。所述方法还可包括加热预成形体导致其收缩不到38％，任选不到30％。所述方法还可包括加热预成形体导致其翘曲不到8.5％，任选不到4.0％。
本发明的一个实施方式可包括通过本文所述方法形成的制品。
附图说明
图1显示了本文所讨论的三种预成形体设计的示意图。
图2显示了用设计B的预成形体形成的两种制品的底部，显示了厚度不均匀和发白(左图)或者吹穿(右图)的情况。
图3显示了预成形体的截面，说明加热导致的收缩和翘曲。
图4分别显示了加热前后的680HIPS预成形体设计A1、A2和B。
图5分别显示了加热前后的CX5229预成形体设计A1、A2和B。
图6显示了680HIPS和CX5229瓶子的顶部负荷强度(top load strength)。
图7显示了680HIPS和CX5229瓶子的碰撞压缩强度(bumpercompression)。
具体实施方式
注射吹塑(IBM)和注射拉伸吹塑(ISBM)是生产塑料容器的成熟技术，它们包括形成预成形体，然后对预成形体进行加热和吹塑，制得空心容器。预成形体一般是密实的形体，它可包括壁较厚的管状制品，具有便于适当封闭的螺纹颈部。通过加热、拉伸和用压缩气体吹预成形体，该预成形体可被吹塑成所需的制品形状。压缩气体使预成形体扩展成模具的形状。
预成形体的形状和厚度不仅决定了其可加工性质和吹塑工艺的生产率，而且决定了所生产的制品的性质，包括机械、物理和光学性质。当聚合物对温度变化敏感时，轻微的不均匀加热会对聚合物分布有明显的影响。这可导致聚合物不能均匀分布在模具中，导致制品强度低，从而可能导致制品损坏。本文所用的“损坏”通过视觉检查判断，通常是制品任意区域中发生聚集(拉伸太多或太少)所致。制品的缺陷还可以通过机械测试来测量。考虑预成形体设计的另一个因素是能耗。人们希望设计出这样的预成形体，即容易以最小的能耗将整个预成形体快速再加热到所需的温度窗口。
ISBM工艺可以是单阶段或双阶段工艺。单阶段工艺将熔融聚合物注射到预成形体模具中，产生预成形体，然后拉伸该预成形体，将该预成形体吹至最终的形状，所有这些步骤在同一过程中完成。在双阶段工艺中，先在第一阶段对预成形体进行注射模塑。在第二阶段，待预成形体冷却后，将它们重新加热，然后拉伸/吹塑成瓶子。
对于每种聚合物材料，由于其物理性质不同，人们希望设计具体的预成形体，以获得最佳的总体可加工性质和瓶子性质。会影响聚合物材料的可加工性质的物理性质包括传热系数、热容、收缩率、热变形温度和熔体强度。
聚苯乙烯是正在开发用于吹塑应用的材料。对用于ISBM应用的聚苯乙烯的初始评价采用图1所示的称作设计B的预成形体设计。设计B是典型的起始预成形体设计，因为它具有简单的形状(因而容易注塑)和薄壁，使预成形体容易被快速再加热到所需的温度窗口，并有利于传热。这种设计特征不仅有助于节能，而且有利于后面的吹塑过程(例如吹塑压力可能更低)。对于包括PP和PET在内的几种塑料，该设计效果良好。
然而，当采用这种预成形体设计(设计B)评价PS时，在生产过程中出现高废品率，并且模塑瓶表现出不连贯的性质。晶体级聚苯乙烯和高抗冲聚苯乙烯(HIPS)均表现出一定程度的收缩和翘曲，这妨碍了聚苯乙烯的成功吹塑，特别是晶体级聚苯乙烯。如图1所示，由于其侧壁是直的并且壁较薄，预成形体在再加热过程中收缩明显。再加热过程中的任何不均匀的收缩都会引起沿预成形体轴向(偏心)的翘曲。这种偏心预成形体可产生不均匀的瓶底和较差的机械性质。此外，如图2所示，瓶底会显示发白的迹象，对最终部件来说这是不利的特性。HIPS级聚苯乙烯在试验中总体上具有较高的收缩率，但翘曲率较低，因此有可能将HIPS吹塑成瓶子。晶体级聚苯乙烯在再加热过程中明显表现出不均匀的收缩和翘曲，导致瓶底偏心，并且壁厚不均。该评价表明设计B不适合PS ISBM。因此，设计出能最大程度减少不均匀收缩和翘曲的预成形体很重要，以避免它们带来的加工问题。
为了最大程度减少预成形体在再加热过程中的不均匀收缩和造成的翘曲，设计(A1和A2)并评价了新预成形体。设计A1和A2具有相同的外部尺寸和形状，但A2的壁稍厚一些。A1和A2的壁厚度均大于设计B(图1)。结果表明，就顺利加工而言，壁厚度较大且近颈部截面呈钟形的预成形体是适合聚苯乙烯应用的有利设计，因为不均匀收缩和翘曲得到最大程度减少。所测试的预成形体设计A1、A2和B的尺寸见表1。
表1
Figure BPA00001498983800051
本发明的实施方式的厚度至少为2.00mm，任选至少2.50mm，任选至少3.00mm，任选至少3.25mm，任选至少3.5mm。本发明的实施方式的第一主体外径为25.0mm-40.0mm，任选30.0mm-38.0mm，任选33.0mm-37.0mm。本发明的实施方式的第二主体外径为12.5mm-38.0mm，任选20.0mm-31.0mm，任选24.0mm-28.0mm。
本发明的实施方式的颈部长度为14mm-26mm，任选15mm-24mm，任选16mm-22mm。
为评价预成形设计在再加热吹塑加工中的效果，选择了购自美国道达尔石化公司(TOTAL Petrochemicals，USA，Inc.)的两种级别的聚苯乙烯(一种晶体级，CX5229；一种抗冲级，680HIPS)，用来评价三种预成形体设计A1(28.5g)、A2(31g)和B(31g)。在耐驰特(Netstal)注射模塑机上将这两种树脂模塑成预成形体。预成形体在室温下调理至少24小时，然后在ADS G62线性注射拉伸吹塑机上将它们拉伸吹塑成瓶子。
参见图3，该图显示了预成形体的一个实施方式在加热前(图3a)和加热后(图3b)的截面视图。图3显示了第一主体外径(d1)、第二主体外径(d2)、预成形体长度(H1)、加热后的预成形体长度(H2)、第一主体长度(h1)、第二主体长度(h2)、加热后的主体长度(h3)、偏差量(d)和过渡点(T)。收缩率定义为(h1-h3)/h1，翘曲率定义为d/h3。为了确定预成形体的钟形颈部的合适尺寸和倾斜角，需要以下参数。第二主体外径(d2)与第一主体外径(d1)之比应在0.50-0.95之间，任选0.60-0.90，任选0.70-0.80。第二主体长度(h2)与第一主体长度(h1)之比应为0.60-0.95，任选0.65-0.85，任选0.65-0.80。颈部段和主体段的端部位置示为E1、E2和E3，其中E1表示预成形体的开口端，E2表示颈部段与主体段相连的位置，E3表示预成形体的封闭端。支承环位于E2，可帮助预成形体的搬运和吹塑过程。
评价结果表明，设计A1和A2看上去适合聚苯乙烯的吹塑工艺。再加热之后，相比于比较预成形体B，这些预成形体收缩更少，收缩更均匀，且显示出更低的翘曲(见表2、图4和图5)。利用设计A1或A2可成功吹塑出瓶子，废品率低于2％。瓶底未显示发白的迹象。图4分别显示了加热前后的680HIPS预成形体设计A1(28.5g)、A2(31g)和B(31g)。图5分别显示了加热前后的CX5229预成形体设计A1(28.5g)、A2(31g)和B(31g)。
表2 PS预成形体的收缩和翘曲数据
Figure BPA00001498983800061
Figure BPA00001498983800071
不管是哪种预成形体设计，晶体级聚苯乙烯(CX5229)预成形体总体上比HIPS(680)具有更高的收缩率和翘曲率。A1预成形体比B预成形体具有更低的收缩率和翘曲率，而在A2预成形体上获得了甚至更低的收缩率和翘曲率。具体而言，设计A2预成形体得到非常低的翘曲率，这是预成形体吹塑所希望的。在本发明的实施方式中，预成形体的收缩率小于38％，任选小于35％，任选小于30％。在本发明的实施方式中，预成形体的翘曲率小于8.5％，任选小于6％，任选小于4％。
用A1和A2预成形体模塑的瓶子还具有高顶部负荷强度。如图6和7所示，由A2预成形体设计制成的瓶子比重量相同但用B预成形体设计制成的瓶子具有更高的顶部负荷强度和碰撞压缩强度。使用CX5229的B预成形体设计没有数据，因为此预成形体没有成功模塑出可测试的良好瓶子。顶部负荷强度和碰撞压缩强度按照ASTM-2659-95测定。还观察到瓶子的碰撞压缩强度变化更大，这表明碰撞压缩强度比顶部负荷强度对预成形体设计更敏感。这是因为碰撞压缩主要由瓶底撑住。瓶底的脆弱区域通常由偏心预成形体产生，它显著降低了模塑瓶的碰撞压缩强度。在一些实施方式中，模塑瓶的碰撞压缩强度大于200N。在替代的实施方式中，碰撞压缩强度大于225N，任选大于250N。在一些实施方式中，模塑瓶的顶部负荷强度大于325N。在替代的实施方式中，顶部负荷强度大于350N，任选大于400N。
结果表明，壁厚度较大的预成形体设计有助于减少再加热过程中的收缩和翘曲，而钟形设计有助于最大程度减少翘曲。A1和A2设计看上去更适合聚苯乙烯。再加热之后，预成形体收缩少，收缩更均匀，并具有更低的翘曲。
本发明的聚合物是基于苯乙烯类的聚合物(例如聚苯乙烯)，其中苯乙烯类聚合物可以是均聚物，或者可任选包含一种或多种共聚单体。苯乙烯也称作乙烯基苯和苯基乙烯，是可用化学式C8H8表示的芳族有机化合物。苯乙烯具有广泛的商业来源，并且本文使用的术语苯乙烯包括各种取代的苯乙烯(如α-甲基苯乙烯)，环上取代的苯乙烯如对甲基苯乙烯，分布式苯乙烯如对叔丁基苯乙烯，以及未取代的苯乙烯。
在一个实施方式中，苯乙烯类聚合物的熔体流速(依据ASTM D1238测得)为1.0g/10min到30.0g/10min，或者为1.5g/10min到20.0g/10min，或者为2.0g/10min到15.0g/10min；密度(依据ASTM D1505测得)为1.04g/cm3到1.15g/cm3，或者为1.05g/cm3到1.10g/cm3，或者为1.05g/cm3到1.07g/cm3；维卡(Vicat)软化点(依据ASTM D1525测得)为227℉到180℉，或者为224℉到200℉，或者为220℉到200℉；拉伸强度(依据ASTM D638测得)为5800psi到7800psi。适用于本发明的苯乙烯类聚合物的例子包括但不限于CX5229和680HIPS，它们是可以从美国道达尔石化公司购得的聚苯乙烯。在一个实施方式中，苯乙烯类聚合物(例如CX5229)一般具有表3所示的性质。
表3
Figure BPA00001498983800081
在一些实施方式中，苯乙烯类聚合物还包含共聚单体，所述共聚单体与苯乙烯聚合时形成苯乙烯类共聚物。这类共聚物的例子可包括例如但不限于：α-甲基苯乙烯；卤代苯乙烯；烷基化苯乙烯；丙烯腈；甲基丙烯酸与有1-8个碳原子的醇的酯；N-乙烯基化合物如乙烯基咔唑和马来酸酐；含两个可聚合双键的化合物，例如但不限于二乙烯基苯或二丙烯酸丁二醇酯；或者它们的组合。共聚单体的含量应能向组合物有效提供一种或多种用户所需的性质。所述有效量可由本领域的普通技术人员在参阅本发明内容的情况下确定。例如，苯乙烯聚合物中共聚单体的含量可为总重的0.1重量％-99.9重量％，或者1重量％-90重量％，或者1重量％-50重量％。
在一个实施方式中，聚合物还包含热塑性材料。在本文中，热塑性材料指在加热时熔化为液体而在充分冷却时冷冻形成易碎玻璃态的塑性材料。热塑性材料的例子包括但不限于丙烯腈/丁二烯/苯乙烯、赛璐珞、醋酸纤维素、乙烯/乙酸乙烯酯、乙烯/乙烯醇、氟塑料、离聚物、聚缩醛、聚丙烯酸酯、聚丙烯腈、聚酰胺、聚酰胺-酰亚胺、聚芳基醚酮、聚丁二烯、聚丁烯、聚对苯二甲酸丁二酯、聚三氟氯乙烯、聚对苯二甲酸乙二酯、聚对苯二甲酸环己二亚甲酯、聚碳酸酯、聚醚酰亚胺、聚醚砜、氯化聚乙烯(polyethylenechlorinate)、聚酰亚胺、聚乳酸、聚甲基戊烯、聚苯醚、聚苯硫醚、聚邻苯二甲酰胺、聚丙烯、聚砜、聚氯乙烯、聚偏二氯乙烯和它们的组合。例如，苯乙烯类聚合物中热塑性材料的含量为总重的0.1重量％到50重量％。
在一个实施方式中，聚合物包含包埋到聚合物基体中的弹性体相。例如，聚合物可包含具有共轭二烯单体作为弹性体的苯乙烯类聚合物。合适的共轭二烯单体的例子包括但不限于：1，3-丁二烯、2-甲基-1，3-丁二烯和2-氯-1，3-丁二烯。或者，热塑性材料可包含具有脂族共轭二烯单体作为弹性体的苯乙烯类聚合物。合适的脂族共轭二烯单体的例子包括但不限于C4-C9二烯，例如丁二烯单体。还可以使用二烯单体的掺混物或共聚物。热塑性聚合物的例子包括但不限于丙烯腈/丁二烯/苯乙烯(ABS)、高抗冲聚苯乙烯(HIPS)、甲基丙烯酸甲酯/丁二烯(MBS)，等等。弹性体的含量应能向组合物有效提供一种或多种用户所需的性质。所述有效量可由本领域的普通技术人员在参阅本发明内容的情况下确定。例如，苯乙烯类聚合物中弹性体的含量为总重的0.1重量％-50重量％，或者1重量％-25重量％，或者1重量％-10重量％。
依据本发明，在需要时聚苯乙烯基聚合物还任选包含添加剂，以提供所需物理性质。用于本发明的添加剂可以是具有不同极性的添加剂。适用于本发明的添加剂包括但不限于：二甲基丙烯酸锌(在下文中称为“ZnDMA”)，甲基丙烯酸十八烷醇酯(在下文中称为“StMMA”)，以及甲基丙烯酸羟乙酯(在下文中称为“HEMA”)。
可包含有效量的这些添加剂，以提供所需的物理性质。在一个实施方式中，添加剂的含量为0.01重量％-10.0重量％。在另一实施方式中，当ZnDMA是添加剂时，其含量为0.01重量％到5重量％。在另一实施方式中，当添加剂是StMMA或HEMA时，添加剂的含量为1重量％到10重量％。
本文使用的各种术语如下文所示。对于权利要求中使用但是下文中没有定义的术语，应给予在提交本申请时相关领域的人员按印刷出版物和颁布的专利中表述而赋予该术语的最宽泛的定义。此外，除非另有说明，本文所述的所有化合物都可以是取代或未取代的，列出的化合物包括其衍生物。
下面进一步列出各种范围。应当认识到，除非另外指出，否则端点是可以互换的。此外，在该范围内的任意点都考虑为在本文中已得到披露。
如本文所用，术语“室温”表示几度温差对研究中的过程无关紧要。在一些情况下，室温可以包括约20-28℃(68-82℉)的温度，在其它的情况下，室温可以包括例如约50-90℉。但是，室温测量通常不包括对工艺温度进行严密的监控，因此上述内容不会将本文所述的实施方式限制于任何预定的温度范围。
根据上下文，本文所有提到的“发明”，在一些情况下都可以仅指某些具体的实施方式。在其它情况下，它可能指在一个或多个但不必是所有权利要求中列出的主题。虽然前面的内容是就本发明的实施方式、形式和实例而言的，但列举它们的目的是使本领域的普通技术人员在将本专利的信息与可获得的其他信息和技术结合时能够实现和利用本发明，本发明不限于这些特定的实施方式、形式和实例。只要不偏离本发明的基本范围，可以设计本发明的其它和进一步的实施方式、形式和实例，本发明的范围由以下权利要求书确定。

Claims (20)

1.一种用于聚苯乙烯基聚合物的吹塑工艺的预成形体，所述预成形体包含：
包含颈部内径和颈部外径并具有第一颈端和第二颈端的颈部；
包含一起形成侧壁的主体内径和主体外径的主体；
所述主体具有与第二颈端连接的第一主体端和封闭的第二主体端，它们一起形成第一主体长度；
所述主体在所述第一主体端具有第一主体外径，并具有小于所述第一主体外径的第二主体外径；
所述主体具有过渡区，所述过渡区由主体外径从第一主体外径减小到第二主体外径的这段长度限定，主体外径等于第二主体外径的地方限定为过渡点；
其中所述过渡区至少为(d1-d2)的50％；
所述主体具有从过渡点到第二主体端的第二主体长度；
其中所述第二主体外径至多为所述第一主体外径的95％；
其中所述第二主体长度至多为所述第一主体长度的95％。
2.如权利要求1所述的预成形体，其特征在于，所述第二主体外径至少为所述第一主体外径的50％。
3.如权利要求1所述的预成形体，其特征在于，所述第二主体长度至少为所述第一主体长度的60％。
4.如权利要求1所述的预成形体，其特征在于，所述第一主体外径的范围是25.0mm-40.0mm。
5.如权利要求1所述的预成形体，其特征在于，所述第二主体外径的范围是12.5mm-38.0mm。
6.如权利要求1所述的预成形体，其特征在于，所述侧壁的厚度大于2.0mm。
7.如权利要求1所述的预成形体，其特征在于，对于用来吹塑500mL瓶子的31g预成形体，所述侧壁的厚度大于2.0mm。
8.如权利要求1所述的预成形体，其特征在于，所述预成形体材料包含聚苯乙烯或者主要含聚苯乙烯的聚合物混合物。
9.如权利要求8所述的预成形体，所述预成形体还包含阻气性涂料。
10.一种通过吹塑权利要求1所述的预成形体而形成的制品。
11.一种用于模塑权利要求1所述的预成形体的预成形体模具。
12.如权利要求1所述的预成形体，其特征在于，所述预成形体在吹塑过程中再加热时的收缩率小于38％，翘曲率小于8.5％。
13.如权利要求1所述的预成形体，其特征在于，所述预成形体在吹塑过程中再加热时的收缩率小于30％，翘曲率小于4.0％。
14.一种形成吹塑制品的方法，所述方法包括：
提供聚苯乙烯基聚合物；
由所述聚苯乙烯基聚合物形成预成形体，其中所述预成形体包含：
包含颈部内径和颈部外径并具有第一颈端和第二颈端的颈部；
包含一起形成侧壁的主体内径和主体外径的主体；
所述主体具有与第二颈端连接的第一主体端和封闭的第二主体端，它们一起形成第一主体长度；
所述主体在所述第一主体端具有第一主体外径，并具有小于所述第一主体外径的第二主体外径；
所述主体具有过渡区，所述过渡区由主体外径从第一主体外径减小到第二主体外径的这段长度限定，主体外径等于第二主体外径的地方限定为过渡点；
其中所述过渡区至少为(d1-d2)的50％；
所述主体具有从过渡点到第二主体端的第二主体长度；
其中所述第二主体外径至多为所述第一主体外径的95％；
其中所述第二主体长度至多为所述第一主体长度的95％。
对所述预成形体进行加热；以及
将所述预成形体注射吹塑成制品。
15.如权利要求14所述的方法，所述方法还包括将所述预成形体注射拉伸吹塑成制品。
16.如权利要求14所述的方法，其特征在于，所述预成形体的第二主体外径为所述预成形体的第一主体外径的50％-95％。
17.如权利要求14所述的方法，其特征在于，所述预成形体的第二主体长度为所述预成形体的第一主体长度的60％-95％。
18.如权利要求14所述的方法，其特征在于，对于用来吹塑500mL瓶子的31g预成形体，所述预成形体的侧壁厚度大于2.00mm。
19.如权利要求14所述的方法，其特征在于，所述加热预成形体导致的收缩率小于38％，翘曲率小于8.5％。
20.一种通过权利要求14所述的方法形成的制品。
CN2010800336934A 2009-07-24 2010-06-25 用于吹塑制品的聚苯乙烯预成形体设计 Pending CN102470578A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/508,600 US20110020576A1 (en) 2009-07-24 2009-07-24 Polystyrene Preform Design for Blow Molding of Articles
US12/508,600 2009-07-24
PCT/US2010/039890 WO2011011149A1 (en) 2009-07-24 2010-06-25 Polystyrene preform design for blow molding of articles

Publications (1)

Publication Number Publication Date
CN102470578A true CN102470578A (zh) 2012-05-23

Family

ID=43497555

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010800336934A Pending CN102470578A (zh) 2009-07-24 2010-06-25 用于吹塑制品的聚苯乙烯预成形体设计

Country Status (8)

Country Link
US (1) US20110020576A1 (zh)
EP (1) EP2456603A1 (zh)
CN (1) CN102470578A (zh)
BR (1) BR112012001593A2 (zh)
EA (1) EA201270146A1 (zh)
MX (1) MX2012000300A (zh)
TW (1) TW201114583A (zh)
WO (1) WO2011011149A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204249143U (zh) 2014-03-21 2015-04-08 赫斯基注塑系统有限公司 容器预成型件
US10556374B2 (en) * 2014-12-15 2020-02-11 Husky Injection Molding Systems Ltd. Method for converting a design of an original preform and a related mold stack for the molding thereof
WO2017020116A1 (en) * 2015-07-31 2017-02-09 Husky Injection Molding Systems Ltd. A preform, a mold stack for producing the preform, and a preform handling apparatus for handling the preform

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5312572A (en) * 1991-07-19 1994-05-17 Krupp Corpoplast Maschinenbau Gmbh Process for heating a blow molding preform
EP0715937A1 (en) * 1994-12-09 1996-06-12 Plasthing S.A.S. Di Modesto Massano E C. Apparatus for injection molding of containers, or preforms for containers, in plastics material
WO2003031156A1 (fr) * 2001-10-12 2003-04-17 Tergal Fibres Procede de fabrication de corps creux, corps creux, preformes et bouteilles obtenus par ce procede
WO2008040821A2 (de) * 2007-02-28 2008-04-10 Basf Se Hohlkörper aus polystyrol durch spritzstreckblasen

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804663A (en) * 1971-05-26 1974-04-16 Dow Chemical Co Method of internally coating rigid or semi-rigid plastic containers
US4044086A (en) * 1972-12-29 1977-08-23 American Can Company Method for making a blow molded oriented plastic bottle
AR002773A1 (es) * 1995-07-07 1998-04-29 Continental Pet Technologies Metodo para el moldeado por inyeccion de un articulo plastico y aparato para llevarlo a cabo.
US6090872A (en) * 1998-10-05 2000-07-18 Fina Technology, Inc. Polymerization process
US20050173844A1 (en) * 2004-01-23 2005-08-11 Bernard Vermeersch Process of making preform articles and polypropylene molded containers from preform articles using injection stretch blow molding techniques
EP1598167A1 (en) * 2004-05-17 2005-11-23 The Procter & Gamble Company Process for producing hollow preforms, process for producing hollow containers, such plastic preforms and containers comprising a visible designed pattern on their surface
JP2008536731A (ja) * 2005-04-18 2008-09-11 アドバンスド プラスティックス テクノロジーズ ルクセンブルク エスアー 耐水性の塗布物およびその製造方法
US7455808B2 (en) * 2005-05-13 2008-11-25 Rexam Healthcare Packaging Inc. Manufacture of plastic containers having internal identifying indicia molded on a container wall
US20070172612A1 (en) * 2006-01-23 2007-07-26 Plastipak Packaging, Inc. Plastic container
US20090146345A1 (en) * 2007-12-05 2009-06-11 Fina Technology, Inc. Preform design for injections stretch blow molding
CN102015267B (zh) * 2008-04-30 2013-06-05 赫斯基注射器成型系统有限公司 模制后预成形件容座及模制后处理装置
US20100140835A1 (en) * 2008-12-09 2010-06-10 Fina Technology, Inc. Styrenic polymers for injection stretch blow molding and methods of making and using same
US20100222532A1 (en) * 2009-02-27 2010-09-02 Fina Technology, Inc. Polystyrene Having High Melt Flow and High Vicat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5312572A (en) * 1991-07-19 1994-05-17 Krupp Corpoplast Maschinenbau Gmbh Process for heating a blow molding preform
EP0715937A1 (en) * 1994-12-09 1996-06-12 Plasthing S.A.S. Di Modesto Massano E C. Apparatus for injection molding of containers, or preforms for containers, in plastics material
WO2003031156A1 (fr) * 2001-10-12 2003-04-17 Tergal Fibres Procede de fabrication de corps creux, corps creux, preformes et bouteilles obtenus par ce procede
WO2008040821A2 (de) * 2007-02-28 2008-04-10 Basf Se Hohlkörper aus polystyrol durch spritzstreckblasen

Also Published As

Publication number Publication date
MX2012000300A (es) 2012-06-01
BR112012001593A2 (pt) 2019-09-24
TW201114583A (en) 2011-05-01
EP2456603A1 (en) 2012-05-30
WO2011011149A1 (en) 2011-01-27
EA201270146A1 (ru) 2012-07-30
US20110020576A1 (en) 2011-01-27

Similar Documents

Publication Publication Date Title
WO2006084212A3 (en) A process for forming a container by stretch blow molding and container formed thereby
CN102164730A (zh) 拉伸吹塑方法及容器
CN102105526A (zh) 用于在两阶段拉伸吹塑过程中制备塑料瓶的塑料制剂和方法
JP6878714B1 (ja) プリフォーム、樹脂製容器およびそれらの製造方法
CN102470578A (zh) 用于吹塑制品的聚苯乙烯预成形体设计
CN103831966A (zh) 一种制造耐热聚乳酸水瓶的方法
CN102245366A (zh) 用于注拉吹塑的苯乙烯聚合物及其制备和使用方法
US10569923B2 (en) Wide mouth container and method of making the same
JP2013075465A (ja) 発泡延伸プラスチック容器及びその製造方法
US12208558B2 (en) Manufacturing method and manufacturing apparatus for delamination container
US20230173734A1 (en) Method for manufacturing resin wide-mouthed container, manufacturing device, and resin wide-mouthed container
RU2009145640A (ru) Модифицированные системы горячих литниковых каналов для инжекционно-выдувного формования
CN115056459B (zh) 一种注吹一体成型光扩散泡壳的制备方法及灯具
WO2011051185A1 (en) Preform for making a blow -molded container and having a concave gate portion, injection mold stack and process for making the preform, process for making the container and container
JP5000021B1 (ja) 射出延伸ブローボトル
US20240123671A1 (en) Temperature adjustment mold and apparatus and method for producing resin container
CN102782019A (zh) 吹塑成型体及吹塑成型体的制造方法
CN114932673B (zh) 聚丙烯预制件
JP2000175938A (ja) 医療用手袋および医療用手袋の製造方法
JP5929085B2 (ja) 発泡延伸容器及びその製造方法
JP5097531B2 (ja) 単層ブロー成形品及びその製造方法
CN101378886A (zh) 用于获得容器的预制坯和相应的容器
JP5491296B2 (ja) 偏芯ボトルの製造方法
US20240327098A1 (en) Double-walled resin container and method for producing same
CN112677449B (zh) 一种可降解双层塑料瓶及其吹塑成型方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120523