BR9815833A - Processo e sistema para a formação de artigo de espuma polimérica de baixa densidade - Google Patents

Processo e sistema para a formação de artigo de espuma polimérica de baixa densidade

Info

Publication number
BR9815833A
BR9815833A BR9815833-3A BR9815833A BR9815833A BR 9815833 A BR9815833 A BR 9815833A BR 9815833 A BR9815833 A BR 9815833A BR 9815833 A BR9815833 A BR 9815833A
Authority
BR
Brazil
Prior art keywords
sheet
less
density
temperature
blowing agent
Prior art date
Application number
BR9815833-3A
Other languages
English (en)
Inventor
Walter R Harfmann
Original Assignee
Genpack L L C
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 Genpack L L C filed Critical Genpack L L C
Publication of BR9815833A publication Critical patent/BR9815833A/pt

Links

Classifications

    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • 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
    • B29K2995/0041—Crystalline

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

''PROCESSO E SISTEMA PARA A FORMAçãO DE ARTIGO DE ESPUMA POLIMéRICA DE BAIXA DENSIDADE'' Uma resina polimérica cristalina, por exemplo, PET, é aquecida até derreter. Um agente de insuflação e a resina são misturados para produzir uma densidade de espuma em folha teórica de menos de 0,4 g/cm³. A mistura é resfriada a uma temperatura que se aproxime do ponto de congelamento da mistura e, então, extrudada em uma folha de espuma polimérica de células fechadas e substancialmente uniformes de densidade menor que 0,4 g/cm³. A folha extrudada é, então, resfriada por contato direto com uma superfície de resfriamento abaixo da temperatura de transição de vidro, de modo que o (s) agente (s) de insuflação condense (m), e a folha tenha uma densidade de mais de 0,4 g/cm³ e uma cristalinidade de folha de menos de 15%. Forma-se, então, um artigo com a folha resfriada, por aplicação de calor, de modo que o (s) agente (s) de insuflação condensado (s) vaporize (m), e o artigo cristalize a uma densidade de menos de 0,4 g/cm³, com uma cristalinidade de mais de 20%.
BR9815833-3A 1998-04-28 1998-08-03 Processo e sistema para a formação de artigo de espuma polimérica de baixa densidade BR9815833A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/067,727 US5985190A (en) 1998-04-28 1998-04-28 Method and system for forming low-density polymer foam article
PCT/US1998/016192 WO1999055513A1 (en) 1998-04-28 1998-08-03 Method and system for forming low-density polymer foam article

Publications (1)

Publication Number Publication Date
BR9815833A true BR9815833A (pt) 2000-12-26

Family

ID=22077991

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9815833-3A BR9815833A (pt) 1998-04-28 1998-08-03 Processo e sistema para a formação de artigo de espuma polimérica de baixa densidade

Country Status (9)

Country Link
US (2) US5985190A (pt)
EP (1) EP1075373B1 (pt)
AT (1) ATE234184T1 (pt)
AU (1) AU741308B2 (pt)
BR (1) BR9815833A (pt)
CA (1) CA2328105A1 (pt)
DE (1) DE69812187T2 (pt)
NZ (1) NZ507351A (pt)
WO (1) WO1999055513A1 (pt)

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AU2003218066A1 (en) 2002-03-14 2003-09-29 Dow Global Technologies, Inc. Application of a membrane roof cover system having a polyester foam layer
US7951449B2 (en) 2002-06-27 2011-05-31 Wenguang Ma Polyester core materials and structural sandwich composites thereof
US7073244B2 (en) * 2002-09-20 2006-07-11 Lear Corporation Process for machining a flexible foam
US7408783B2 (en) * 2003-06-18 2008-08-05 International Business Machines Corporation Method and apparatus for safely shipping tape drives while mounted inside a frame of an automated tape library
US20060148917A1 (en) * 2004-12-30 2006-07-06 Radwanski Fred R Absorbent foam containing fiber
US20060246272A1 (en) * 2005-04-29 2006-11-02 Zhang Xiaomin X Thermoplastic foam composite
US7602199B2 (en) 2006-05-31 2009-10-13 Applied Materials, Inc. Mini-prober for TFT-LCD testing
US7786742B2 (en) 2006-05-31 2010-08-31 Applied Materials, Inc. Prober for electronic device testing on large area substrates
ES2429421T3 (es) * 2006-10-13 2013-11-14 Cryovac, Inc. Artículos de espuma moldeados resistentes al calor y procedimiento para su fabricación
US7887909B2 (en) * 2007-07-26 2011-02-15 Sabic Innovative Plastics Ip B.V. Light transmissive foamed polymer sheet and methods for making the same
US8859091B2 (en) * 2008-11-20 2014-10-14 Sabic Global Technologies B.V. Colored diffusion sheets, methods of manufacture thereof and articles comprising the same
WO2010093524A2 (en) * 2009-02-13 2010-08-19 Dow Global Technologies Inc. Method for manufacturing a plurality of shaped foam articles
WO2011003699A2 (en) * 2009-07-10 2011-01-13 Huntsman International Llc Novel crystalline foam
CN113306039B (zh) * 2021-06-01 2022-03-22 中山大学 一种聚酯发泡珠粒及其半连续制备方法与水蒸气成型方法
CN114957948B (zh) * 2022-06-28 2023-08-22 苏州复丝络科新材料有限公司 一种3d打印用发泡线材及其制备方法和应用
CN116141564A (zh) * 2023-02-16 2023-05-23 中山亿圣峰环保材料有限公司 一种tpu发泡成型工艺
EP4733036A1 (de) 2024-10-22 2026-04-29 Airex AG Strukturplatte, extrusionsvorrichtung und herstellungsverfahren

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Also Published As

Publication number Publication date
DE69812187T2 (de) 2003-12-24
EP1075373A1 (en) 2001-02-14
US5985190A (en) 1999-11-16
EP1075373B1 (en) 2003-03-12
CA2328105A1 (en) 1999-11-04
US6273697B1 (en) 2001-08-14
AU741308B2 (en) 2001-11-29
AU8687598A (en) 1999-11-16
NZ507351A (en) 2002-07-26
ATE234184T1 (de) 2003-03-15
WO1999055513A1 (en) 1999-11-04
DE69812187D1 (de) 2003-04-17

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A, 6A, 7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1870 DE 07/11/2006.