WO2001010622A8 - Method of preparing porous prepolymer pellets - Google Patents

Method of preparing porous prepolymer pellets

Info

Publication number
WO2001010622A8
WO2001010622A8 PCT/US2000/015921 US0015921W WO0110622A8 WO 2001010622 A8 WO2001010622 A8 WO 2001010622A8 US 0015921 W US0015921 W US 0015921W WO 0110622 A8 WO0110622 A8 WO 0110622A8
Authority
WO
WIPO (PCT)
Prior art keywords
prepolymer
die
blowing agent
preparing porous
prepolymer pellets
Prior art date
Application number
PCT/US2000/015921
Other languages
French (fr)
Other versions
WO2001010622A1 (en
Inventor
James Day
Harish Radhakrishna Acharya
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Priority to JP2001526639A priority Critical patent/JP2003510441A/en
Priority to KR1020027001819A priority patent/KR20020021684A/en
Priority to AT00938247T priority patent/ATE276863T1/en
Priority to AU53316/00A priority patent/AU5331600A/en
Priority to EP00938247A priority patent/EP1218159B1/en
Priority to DE60014123T priority patent/DE60014123T2/en
Publication of WO2001010622A1 publication Critical patent/WO2001010622A1/en
Publication of WO2001010622A8 publication Critical patent/WO2001010622A8/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • 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
    • B29C44/3461—Making or treating expandable particles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/142—Compounds containing oxygen but no halogen atom
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/042—Elimination of an organic solid phase
    • C08J2201/0422—Elimination of an organic solid phase containing oxygen atoms, e.g. saccharose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates

Abstract

A method of preparing cellular pellets from a prepolymer comprising a blowing agent, the method comprising the steps of: a) extruding the prepolymer through a die, the die maintained at conditions such that the blowing agent remains in the condensed phase in the prepolymer prior to emerging from the die, and b) upon emergence of the prepolymer through the die, substantially simultaneously cooling the prepolymer by contacting the prepolymer with a cooling agent and cutting the prepolymer; the conditions outside the die being maintained such that the blowing agent vaporizes in the prepolymer to form pores.
PCT/US2000/015921 1999-08-10 2000-06-09 Method of preparing porous prepolymer pellets WO2001010622A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2001526639A JP2003510441A (en) 1999-08-10 2000-06-09 Method for producing porous prepolymer pellets
KR1020027001819A KR20020021684A (en) 1999-08-10 2000-06-09 Method of preparing porous prepolymer pellets
AT00938247T ATE276863T1 (en) 1999-08-10 2000-06-09 METHOD FOR PRODUCING POROUS POLYMER PELLETS
AU53316/00A AU5331600A (en) 1999-08-10 2000-06-09 Method of preparing porous prepolymer pellets
EP00938247A EP1218159B1 (en) 1999-08-10 2000-06-09 Method of preparing porous prepolymer pellets
DE60014123T DE60014123T2 (en) 1999-08-10 2000-06-09 METHOD FOR PRODUCING POROUS POLYMER PELLETS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/371,451 US6339109B1 (en) 1999-08-10 1999-08-10 Method of pelletization of polymer
US09/371,451 1999-08-10

Publications (2)

Publication Number Publication Date
WO2001010622A1 WO2001010622A1 (en) 2001-02-15
WO2001010622A8 true WO2001010622A8 (en) 2001-06-14

Family

ID=23464041

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/015921 WO2001010622A1 (en) 1999-08-10 2000-06-09 Method of preparing porous prepolymer pellets

Country Status (9)

Country Link
US (1) US6339109B1 (en)
EP (1) EP1218159B1 (en)
JP (1) JP2003510441A (en)
KR (1) KR20020021684A (en)
CN (1) CN1182948C (en)
AT (1) ATE276863T1 (en)
AU (1) AU5331600A (en)
DE (1) DE60014123T2 (en)
WO (1) WO2001010622A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6821953B1 (en) * 1999-12-16 2004-11-23 University Of Southern California Methods for treating and preventing damage to mucosal tissue
US6790929B2 (en) * 2002-06-12 2004-09-14 General Electric Company Method for making an aromatic polycarbonate
US7951449B2 (en) 2002-06-27 2011-05-31 Wenguang Ma Polyester core materials and structural sandwich composites thereof
US7700707B2 (en) 2002-10-15 2010-04-20 Exxonmobil Chemical Patents Inc. Polyolefin adhesive compositions and articles made therefrom
AU2003302033A1 (en) * 2002-10-15 2004-06-15 Exxonmobil Chemical Patents Inc. Multiple catalyst system for olefin polymerization and polymers produced therefrom
US7541402B2 (en) * 2002-10-15 2009-06-02 Exxonmobil Chemical Patents Inc. Blend functionalized polyolefin adhesive
US7329723B2 (en) 2003-09-18 2008-02-12 Eastman Chemical Company Thermal crystallization of polyester pellets in liquid
CA2482056A1 (en) 2003-10-10 2005-04-10 Eastman Chemical Company Thermal crystallization of a molten polyester polymer in a fluid
US7459113B2 (en) 2004-03-08 2008-12-02 Eastman Chemical Company Process of making a container from polyester polymer particles having a small surface to center intrinsic-viscosity gradient
US7935399B2 (en) 2004-09-02 2011-05-03 Grupo Petrotemex, S.A. De C.V. Low melting polyester polymers
US20060047102A1 (en) * 2004-09-02 2006-03-02 Stephen Weinhold Spheroidal polyester polymer particles
US7875184B2 (en) 2005-09-22 2011-01-25 Eastman Chemical Company Crystallized pellet/liquid separator
DE502007005555D1 (en) 2006-03-22 2010-12-16 Basf Se METHOD AND DEVICE FOR GRANULATING WEATHER-CONTAINING POLYMER MELTS
US7868125B2 (en) * 2008-03-03 2011-01-11 Eastman Chemical Company Production of non-solid-stated polyester particles having solid-stated properties
DE102014216992A1 (en) * 2014-08-26 2016-03-03 Adidas Ag Expanded polymer pellets
JP6658086B2 (en) * 2016-02-26 2020-03-04 東洋製罐グループホールディングス株式会社 Polyoxalate copolymer and method for producing the same
WO2022104195A1 (en) 2020-11-16 2022-05-19 Cryovac, Llc Method and system for recycling polyvinylidene chloride containing composite material

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1229722B (en) * 1957-11-29 1966-12-01 Dow Chemical Co Process for the production of foamable molding compounds from aromatic vinyl polymers
US3121132A (en) * 1961-12-18 1964-02-11 Koppers Co Inc Stress relieving expandable plastic particles
US3912800A (en) 1970-09-21 1975-10-14 Int Plastics Method of producing porous polymeric articles
DE2126146A1 (en) 1971-05-26 1972-12-07 Bayer Propellant
GB1507921A (en) 1974-04-01 1978-04-19 Gen Electric Membranes
US4224264A (en) * 1979-01-18 1980-09-23 Monsanto Company Foam crystallization of condensation polymers
US4473665A (en) * 1982-07-30 1984-09-25 Massachusetts Institute Of Technology Microcellular closed cell foams and their method of manufacture
US4597843A (en) 1984-10-12 1986-07-01 American Cyanamid Company Enhanced bulk porosity of polymer structures via plasma technology
US4644049A (en) 1986-03-05 1987-02-17 The Goodyear Tire & Rubber Company Solid state polymerization
US5000891A (en) * 1986-09-29 1991-03-19 Green James R Expandable polystyrene pellets
WO1989002904A1 (en) 1987-09-28 1989-04-06 Asahi Kasei Kogyo Kabushiki Kaisha Process for preparing crystallized aromatic polycarbonate and crystallized aromatic polycarbonate obtained by the process
US5204377A (en) 1988-12-27 1993-04-20 Asahi Kasei Kogyo Kabushiki Kaisha Porous, crystallized, aromatic polycarbonate prepolymer, a porous, crystallized aromatic polycarbonate, and production methods
EP0494445B1 (en) * 1991-01-05 1997-02-12 Bayer Ag Process for the preparation of polycarbonate foam moulded articles
US5158986A (en) * 1991-04-05 1992-10-27 Massachusetts Institute Of Technology Microcellular thermoplastic foamed with supercritical fluid

Also Published As

Publication number Publication date
DE60014123T2 (en) 2005-09-22
DE60014123D1 (en) 2004-10-28
AU5331600A (en) 2001-03-05
JP2003510441A (en) 2003-03-18
EP1218159B1 (en) 2004-09-22
WO2001010622A1 (en) 2001-02-15
EP1218159A1 (en) 2002-07-03
US6339109B1 (en) 2002-01-15
KR20020021684A (en) 2002-03-21
CN1378498A (en) 2002-11-06
CN1182948C (en) 2005-01-05
ATE276863T1 (en) 2004-10-15

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