GB1195495A - Process for Extruding Foamed Thermoplastics - Google Patents

Process for Extruding Foamed Thermoplastics

Info

Publication number
GB1195495A
GB1195495A GB48015/68A GB4801568A GB1195495A GB 1195495 A GB1195495 A GB 1195495A GB 48015/68 A GB48015/68 A GB 48015/68A GB 4801568 A GB4801568 A GB 4801568A GB 1195495 A GB1195495 A GB 1195495A
Authority
GB
United Kingdom
Prior art keywords
injected
extruder
zone
mixing
polystyrene
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.)
Expired
Application number
GB48015/68A
Other languages
English (en)
Inventor
Herbert Albert Ehrenfreund
Edward Write Cronin
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.)
Haveg Industries Inc
Original Assignee
Haveg Industries 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 Haveg Industries Inc filed Critical Haveg Industries Inc
Publication of GB1195495A publication Critical patent/GB1195495A/en
Expired legal-status Critical Current

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
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
GB48015/68A 1967-11-15 1968-10-10 Process for Extruding Foamed Thermoplastics Expired GB1195495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00683388A US3843757A (en) 1967-11-15 1967-11-15 Process for extruding foamed thermoplastics by utilizing an intermeshing co-rotating twin screw extruder

Publications (1)

Publication Number Publication Date
GB1195495A true GB1195495A (en) 1970-06-17

Family

ID=24743842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48015/68A Expired GB1195495A (en) 1967-11-15 1968-10-10 Process for Extruding Foamed Thermoplastics

Country Status (5)

Country Link
US (1) US3843757A (enExample)
BE (1) BE723827A (enExample)
DE (1) DE1808364A1 (enExample)
FR (1) FR1591429A (enExample)
GB (1) GB1195495A (enExample)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
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US4185057A (en) * 1974-05-15 1980-01-22 W Bar E, Inc. Dewatering of plastic materials with controlled gaseous injection
FR2280492A1 (fr) * 1974-07-31 1976-02-27 Emery Guy Procede et installation permettant de recuperer des matieres plastiques melangees, de toutes provenances
US3991153A (en) * 1975-06-24 1976-11-09 American Cyanamid Company Single phase extrusion of acrylic polymer and water
DE2554712A1 (de) * 1975-12-05 1977-06-08 Bayer Ag Vorrichtung zum extrudieren von temperaturempfindlichen, thermoplastischen kunststoffen zu halbzeugen
US4282890A (en) * 1978-03-13 1981-08-11 Celanese Corporation Open cell structure foamed cellulose acetate filters
US4180536A (en) * 1978-03-13 1979-12-25 Celanese Corporation Process for extruding plasticized open cell foamed cellulose acetate filters
US4304713A (en) * 1980-02-29 1981-12-08 Andrew Corporation Process for preparing a foamed perfluorocarbon dielectric coaxial cable
NL8001732A (nl) * 1980-03-25 1981-10-16 Stamicarbon Werkwijze voor de vervaardiging van produkten bestaande uit geschuimde en/of verknoopte polymere kunststoffen.
US4422992A (en) * 1982-02-12 1983-12-27 E. I. Du Pont De Nemours & Company Extruder process for preparation of carbon fiber reinforced fluoropolymer compositions
US4663103A (en) * 1983-08-09 1987-05-05 Collins & Aikman Corporation Apparatus and method of extrusion
DE3340116A1 (de) * 1983-11-05 1985-05-23 Werner & Pfleiderer, 7000 Stuttgart Verfahren zur herstellung von caseinaten
US4621015A (en) * 1983-11-07 1986-11-04 Long John V Low density, modified polyimide foams and methods of making same
US4581264A (en) * 1984-03-30 1986-04-08 Standard Oil Company (Indiana) Process for extruding an article from an amide-imide copolymer and the resultant article
CA1290528C (en) * 1985-07-09 1991-10-15 Martin Walsh Method and apparatus for producing thermoplastic and products produced therefrom
US5026736A (en) * 1987-02-24 1991-06-25 Astro-Valcour, Inc. Moldable shrunken thermoplastic polymer foam beads
JP2624813B2 (ja) * 1987-04-15 1997-06-25 ザ ダウ ケミカル カンパニー アルケニル芳香族合成樹脂押出発泡体の製造方法
JP2546880B2 (ja) * 1987-08-06 1996-10-23 株式会社神戸製鋼所 スクリュー押出機
CH677309A5 (enExample) * 1987-11-27 1991-05-15 Buehler Ag
US5059376A (en) * 1989-04-20 1991-10-22 Astro-Valcour, Incorporated Methods for rapid purging of blowing agents from foamed polymer products
US5051222A (en) * 1989-09-01 1991-09-24 Air Products And Chemicals, Inc. Method for making extrudable polyvinyl alcohol compositions
US5137969A (en) * 1989-09-01 1992-08-11 Air Products And Chemicals, Inc. Melt extrudable polyvinyl alcohol pellets having reduced maximum melt temperature and reduced gel content
US5034171A (en) * 1989-11-30 1991-07-23 Air Products And Chemicals, Inc. Process for extruding thermoplastic materials using low pressure inert gases as foaming agents
DE3939986A1 (de) * 1989-12-02 1991-06-06 Gefinex Gmbh Herstellungsverfahren fuer schaumkoerper
JPH03233814A (ja) * 1990-02-09 1991-10-17 Sumitomo Electric Ind Ltd 高発泡絶縁押出機
DE4134026C2 (de) * 1991-10-15 1994-04-21 Werner & Pfleiderer Gleichdrallschneckenkneter
DE4135675A1 (de) * 1991-10-30 1993-05-06 Werner & Pfleiderer Gmbh, 7000 Stuttgart, De Verfahren und vorrichtung zur herstellung von mit zusatzstoffen gefuellten kunststoffen
US5376494A (en) * 1991-12-30 1994-12-27 Xerox Corporation Reactive melt mixing process for preparing cross-linked toner resin
US5227460A (en) * 1991-12-30 1993-07-13 Xerox Corporation Cross-linked toner resins
DE4401432C1 (de) * 1994-01-19 1995-06-22 Berstorff Gmbh Masch Hermann Verfahren und Vorrichtung zum Herstellen eines TPE-Schaumprofiles für die Bau- und Kfz.-Industrie
US5635237A (en) * 1995-01-31 1997-06-03 Rawhide Select Method of manufacturing substantially pure rawhide pet products
IT1291706B1 (it) * 1997-05-09 1999-01-21 L M P Impianti S R L Procedimento di produzione di poliestere, in particolare pet, espanso.
US6602064B1 (en) * 1999-08-31 2003-08-05 Trexel, Inc. Polymer processing system and apparatus
DE10018542A1 (de) * 2000-04-14 2001-10-18 Krauss Maffei Kunststofftech Spritzgießmaschine mit kontinuierlich arbeitender Plastifiziereinheit
ES2203263B1 (es) * 2000-09-28 2005-05-16 Coexpan, S.A. Procedimiento de preparacion de una lamina espumada de poliestireno para la fabricacion de envases formados y llenados en maquinas automaticas (ffs), para productos lacteos frescos y postres.
US7763341B2 (en) * 2004-01-23 2010-07-27 Century-Board Usa, Llc Filled polymer composite and synthetic building material compositions
EP1776216A4 (en) 2004-06-24 2009-04-08 Century Board Usa Llc DEVICE FOR CONTINUOUS MANUFACTURE OF THREE-DIMENSIONAL STUNNING PRODUCTS
AU2007230923A1 (en) * 2006-03-24 2007-10-04 Century-Board Usa, Llc Extrusion of polyurethane composite materials
WO2011005705A2 (en) * 2009-07-06 2011-01-13 Boral Material Technologies Inc. Vacuum removal of entrained gasses in extruded, foamed polyurethane
WO2011005706A2 (en) * 2009-07-06 2011-01-13 Boral Material Technologies Inc. Fiber feed system for extruder for use in filled polymeric products
US20110086933A1 (en) * 2009-08-14 2011-04-14 Boral Material Technologies Inc. Filled polyurethane composites and methods of making same
US9481759B2 (en) * 2009-08-14 2016-11-01 Boral Ip Holdings Llc Polyurethanes derived from highly reactive reactants and coal ash
US8846776B2 (en) * 2009-08-14 2014-09-30 Boral Ip Holdings Llc Filled polyurethane composites and methods of making same
US20110086932A1 (en) * 2009-08-14 2011-04-14 Boral Material Technologies Inc. Polyurethanes derived from lesquerella oil
CA2851349C (en) 2011-10-07 2020-01-21 Russell L. Hill Inorganic polymer/organic polymer composites and methods of making same
US9108171B2 (en) * 2012-02-07 2015-08-18 Mitsubishi Rayon Co., Ltd. Method of manufacturing resin kneaded product
WO2014168633A1 (en) 2013-04-12 2014-10-16 Boral Ip Holdings (Australia) Pty Limited Composites formed from an absorptive filler and a polyurethane
US10138341B2 (en) 2014-07-28 2018-11-27 Boral Ip Holdings (Australia) Pty Limited Use of evaporative coolants to manufacture filled polyurethane composites
US9752015B2 (en) 2014-08-05 2017-09-05 Boral Ip Holdings (Australia) Pty Limited Filled polymeric composites including short length fibers
US9988512B2 (en) 2015-01-22 2018-06-05 Boral Ip Holdings (Australia) Pty Limited Highly filled polyurethane composites
US10030126B2 (en) 2015-06-05 2018-07-24 Boral Ip Holdings (Australia) Pty Limited Filled polyurethane composites with lightweight fillers
US20170267585A1 (en) 2015-11-12 2017-09-21 Amitabha Kumar Filled polyurethane composites with size-graded fillers
IT201800008073A1 (it) * 2018-08-13 2020-02-13 Versalis Spa Composizione polimerica vinilaromatica espandibile a migliorate proprieta’ meccaniche e isolanti
CN109879057B (zh) * 2019-03-01 2024-07-26 成都瑞柯林工程技术有限公司 粉体流化结构及装置
CN111469378A (zh) * 2020-04-23 2020-07-31 新昌县欧赛机械有限公司 一种高强度橡胶用双螺杆型配合设备
US12257749B2 (en) 2020-09-17 2025-03-25 Husky Injection Molding Systems Ltd. Injection unit with telescopic melt coupling

Also Published As

Publication number Publication date
BE723827A (enExample) 1969-05-14
US3843757A (en) 1974-10-22
FR1591429A (enExample) 1970-04-27
DE1808364A1 (de) 1969-07-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees