GB1080619A - Process for producing polyolefin foams - Google Patents

Process for producing polyolefin foams

Info

Publication number
GB1080619A
GB1080619A GB3306366A GB3306366A GB1080619A GB 1080619 A GB1080619 A GB 1080619A GB 3306366 A GB3306366 A GB 3306366A GB 3306366 A GB3306366 A GB 3306366A GB 1080619 A GB1080619 A GB 1080619A
Authority
GB
United Kingdom
Prior art keywords
acid
hydrated salt
copolymers
polymer
mixture
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
GB3306366A
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.)
Hercules LLC
Original Assignee
Hercules LLC
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 Hercules LLC filed Critical Hercules LLC
Publication of GB1080619A publication Critical patent/GB1080619A/en
Expired legal-status Critical Current

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
    • C08J9/04—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
    • C08J9/125—Water, e.g. hydrated salts
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Cellular compositions are made from polymers and/or copolymers of aliphatic olefins by incorporation of a hydrated salt of a Group Ia or Group IIa metal and by heating this mixture to a temperature above the softening temperature of the polymer and sufficient to release water from the hydrated salt and thus expand the polymer. The salt forming anion may be phosphate, acid phosphate, hypophosphite, chromate, sulphate, tartrate, acid tartrate, citrate, acid citrate, acetate, lactate and borate and salts of magnesium, potassium, calcium, barium, strontium, beryllium, lithium and sodium are included. Polyethylene, both low and high density types, polypropylene and the essentially crystalline polymers of higher mono-a -olefines, and copolymers of ethylene or propylene with each other or with another monomer may be foamed. In addition to the hydrated salt a chemical blowing agent may be incorporated into the mixture and azido cross-linking agents such as a poly(sulphonazide), R(SO2N3)x, or polyazidoformate, R-(OCON3)x where R is an organic radical inert to cross-linking reactions and x is an integer preferably from 2 to 4 may also be used. Additives may, include plasticizers, fillers and stabilizers.
GB3306366A 1965-08-25 1966-07-22 Process for producing polyolefin foams Expired GB1080619A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48258765A 1965-08-25 1965-08-25

Publications (1)

Publication Number Publication Date
GB1080619A true GB1080619A (en) 1967-08-23

Family

ID=23916646

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3306366A Expired GB1080619A (en) 1965-08-25 1966-07-22 Process for producing polyolefin foams

Country Status (1)

Country Link
GB (1) GB1080619A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556122A1 (en) * 1983-12-05 1985-06-07 Cables De Lyon Geoffroy Delore METHOD FOR MANUFACTURING AN INSULATOR WITH A SELF-CELLULAR CELLULAR STRUCTURE
DE3490517T1 (en) * 1983-11-04 1985-10-17 Neste Oy, Espoo Polyolefin foam foamed with water and crosslinked with silane and process for its manufacture
FR2692521A1 (en) * 1992-06-22 1993-12-24 Yhtyneet Paperitehtaat Oy Insulating material, method of manufacturing such a material, and laminate for use in carrying out said method.
WO1999067322A1 (en) * 1998-06-23 1999-12-29 Dsm N.V. Foamed thermoplastic elastomer article and process for its manufacturing
US6277916B1 (en) 1999-02-25 2001-08-21 The Dow Chemical Company Process for preparing thermoplastic vulcanizates
US6325956B2 (en) 1997-08-27 2001-12-04 The Dow Chemical Company Crosslinking of polymers and foams thereof
US6472473B1 (en) 1999-06-24 2002-10-29 Dow Global Technology Inc. Polyolefin composition with improved impact properties
US6593005B2 (en) 2000-01-24 2003-07-15 Dow Global Technologies Inc. Composition and films thereof
US6776924B2 (en) 2000-05-04 2004-08-17 Dow Global Technologies Inc. Molecular melt and methods for making and using the molecular melt
US6800669B2 (en) 2000-12-22 2004-10-05 Dow Global Technologies Inc. Propylene copolymer foams
US6939919B2 (en) 2000-05-26 2005-09-06 Dow Global Technologies Inc. Polyethylene rich/polypropylene blends and their uses
WO2005082989A1 (en) * 2004-02-17 2005-09-09 Clariant International Ltd Polyolefin compositions comprising hydrated inorganic or organic compounds for the prevention of discoloration
US7056987B2 (en) 2001-08-31 2006-06-06 Borealis Technology Oy Process for preparing cross-linked polyolefins
EP2441794A2 (en) 2010-10-07 2012-04-18 Lanxess Elastomers B.V. Foamable elastomeric composition
WO2016146597A1 (en) 2015-03-13 2016-09-22 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Non explosive bis-sulfonyl azides

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3490517T1 (en) * 1983-11-04 1985-10-17 Neste Oy, Espoo Polyolefin foam foamed with water and crosslinked with silane and process for its manufacture
EP0147650A2 (en) * 1983-12-05 1985-07-10 LES CABLES DE LYON Société anonyme dite: Method of manufacturing a self-curing insulation with a cellular structure
EP0147650A3 (en) * 1983-12-05 1985-08-07 Les Cables De Lyon Societe Anonyme Dite: Method of manufacturing a self-curing insulation with a cellular structure
FR2556122A1 (en) * 1983-12-05 1985-06-07 Cables De Lyon Geoffroy Delore METHOD FOR MANUFACTURING AN INSULATOR WITH A SELF-CELLULAR CELLULAR STRUCTURE
FR2692521A1 (en) * 1992-06-22 1993-12-24 Yhtyneet Paperitehtaat Oy Insulating material, method of manufacturing such a material, and laminate for use in carrying out said method.
BE1008294A5 (en) * 1992-06-22 1996-04-02 Yhtyneet Paperitehtaat Oy Insulation material.
US6325956B2 (en) 1997-08-27 2001-12-04 The Dow Chemical Company Crosslinking of polymers and foams thereof
WO1999067322A1 (en) * 1998-06-23 1999-12-29 Dsm N.V. Foamed thermoplastic elastomer article and process for its manufacturing
JP2002518571A (en) * 1998-06-23 2002-06-25 ディーエスエム エヌ．ブイ． Foamed thermoplastic elastomer articles
US6548562B2 (en) 1998-06-23 2003-04-15 Dsm N.V. Foamed thermo-elastic article
US6277916B1 (en) 1999-02-25 2001-08-21 The Dow Chemical Company Process for preparing thermoplastic vulcanizates
US6472473B1 (en) 1999-06-24 2002-10-29 Dow Global Technology Inc. Polyolefin composition with improved impact properties
US6841620B2 (en) 1999-06-24 2005-01-11 Dow Global Technologies Inc. Polyolefin composition with improved impact properties
US6593005B2 (en) 2000-01-24 2003-07-15 Dow Global Technologies Inc. Composition and films thereof
US7399808B2 (en) 2000-05-04 2008-07-15 Dow Global Technologies Inc. Molecular melt and methods for making and using the molecular melt
US6776924B2 (en) 2000-05-04 2004-08-17 Dow Global Technologies Inc. Molecular melt and methods for making and using the molecular melt
US7141182B2 (en) 2000-05-04 2006-11-28 Dow Global Technologies Inc. Molecular melt and methods for making and using the molecular melt
US7326361B2 (en) 2000-05-04 2008-02-05 Dow Global Technologies, Inc. Molecular melt and methods for making and using the molecular melt
US6939919B2 (en) 2000-05-26 2005-09-06 Dow Global Technologies Inc. Polyethylene rich/polypropylene blends and their uses
US6800669B2 (en) 2000-12-22 2004-10-05 Dow Global Technologies Inc. Propylene copolymer foams
US7056987B2 (en) 2001-08-31 2006-06-06 Borealis Technology Oy Process for preparing cross-linked polyolefins
WO2005082989A1 (en) * 2004-02-17 2005-09-09 Clariant International Ltd Polyolefin compositions comprising hydrated inorganic or organic compounds for the prevention of discoloration
EP2441794A2 (en) 2010-10-07 2012-04-18 Lanxess Elastomers B.V. Foamable elastomeric composition
EP2450399A2 (en) 2010-10-07 2012-05-09 Lanxess Elastomers B.V. Foamable rubber composition
EP2441794A3 (en) * 2010-10-07 2013-05-01 Lanxess Elastomers B.V. Foamable elastomeric composition
WO2016146597A1 (en) 2015-03-13 2016-09-22 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Non explosive bis-sulfonyl azides
US10385016B2 (en) 2015-03-13 2019-08-20 Dynamit Nobel Gmbh Explosivstoff-Und Systemtechnik Non explosive bis-sulfonyl azides

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