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GB1210672A - Porous expanded articles of styrene polymer material - Google Patents

Porous expanded articles of styrene polymer material

Info

Publication number
GB1210672A
GB1210672A GB5228167A GB5228167A GB1210672A GB 1210672 A GB1210672 A GB 1210672A GB 5228167 A GB5228167 A GB 5228167A GB 5228167 A GB5228167 A GB 5228167A GB 1210672 A GB1210672 A GB 1210672A
Authority
GB
United Kingdom
Prior art keywords
styrene
polymer
copolymer
nov
sodium bicarbonate
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
GB5228167A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Edison SpA
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 Montedison SpA, Montecatini Edison SpA filed Critical Montedison SpA
Publication of GB1210672A publication Critical patent/GB1210672A/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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • 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
    • C08J2455/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2423/00 - C08J2453/00
    • 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
    • C08J2457/00—Characterised by the use of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds

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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,210,672. Porous shaped articles of styrene polymers. MONTECATINI EDISON S.p.A. 16 Nov., 1967 [18 Nov., 1966], No. 52281/67. Headings C3C, C3G and C3P. Porous shaped articles of a styrene polymer, viz. a homopolymer of styrene, a copolymer of styrene with other monomers and containing at least 50% by wt. of styrene and/or derivatives thereof or a graft copolymer of styrene, are made by extruding the polymer containing 1-20% by wt. of one or more blowing agents in the presence of 0À1-10% by wt. of at least one nucleating agent which is an organic homo- or co-polymer of an unsaturated monomer containing at least one carboxylic acid or anhydride groups. In the example, polystyrene in bead form and containing petroleum ether is extruded using as nucleating agents a copolymer of 2-ethylhexyl acrylate and acrylic acid with optionally sodium bicarbonate; comparative tests used as nucleating agents, citric acid with optionally sodium bicarbonate, and potassium metasilicate.
GB5228167A 1966-11-18 1967-11-16 Porous expanded articles of styrene polymer material Expired GB1210672A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT3010566 1966-11-18

Publications (1)

Publication Number Publication Date
GB1210672A true GB1210672A (en) 1970-10-28

Family

ID=11229061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5228167A Expired GB1210672A (en) 1966-11-18 1967-11-16 Porous expanded articles of styrene polymer material

Country Status (13)

Country Link
AT (1) AT288717B (en)
BE (1) BE706673A (en)
CH (1) CH487199A (en)
DE (1) DE1694651A1 (en)
ES (1) ES347603A1 (en)
GB (1) GB1210672A (en)
GR (1) GR34569B (en)
IL (1) IL28942A (en)
LU (1) LU54802A1 (en)
NL (1) NL6715379A (en)
NO (1) NO129910B (en)
SE (1) SE346943B (en)
YU (1) YU31805B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000257A1 (en) * 1994-06-24 1996-01-04 Imperial Chemical Industries Plc Foaming method
US5985946A (en) * 1995-11-09 1999-11-16 Imperial Chemical Industries Plc Foamed articles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011003A1 (en) * 1990-04-05 1991-10-10 Gerro Plast Gmbh METHOD FOR PRODUCING FOAMED POLYSTYRENE FILMS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000257A1 (en) * 1994-06-24 1996-01-04 Imperial Chemical Industries Plc Foaming method
WO1996000256A1 (en) * 1994-06-24 1996-01-04 Imperial Chemical Industries Plc Foamed articles of styrenic and acrylic polymers blend
US5898039A (en) * 1994-06-24 1999-04-27 Imperial Chemical Industries Plc Foaming method
US6063485A (en) * 1994-06-24 2000-05-16 Imperial Chemical Industies Plc Foamed articles of styrenic and acrylic polymers blend
US5985946A (en) * 1995-11-09 1999-11-16 Imperial Chemical Industries Plc Foamed articles

Also Published As

Publication number Publication date
GR34569B (en) 1968-05-24
DE1694651A1 (en) 1971-07-15
LU54802A1 (en) 1968-01-31
CH487199A (en) 1970-03-15
NO129910B (en) 1974-06-10
YU31805B (en) 1973-12-31
BE706673A (en) 1968-05-17
SE346943B (en) 1972-07-24
YU221967A (en) 1973-06-30
ES347603A1 (en) 1969-06-01
AT288717B (en) 1971-03-25
IL28942A (en) 1970-12-24
NL6715379A (en) 1968-05-20

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
SPA Amended specification published
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee