ES347603A1 - Porous expanded articles of styrene polymer material - Google Patents

Porous expanded articles of styrene polymer material

Info

Publication number
ES347603A1
ES347603A1 ES347603A ES347603A ES347603A1 ES 347603 A1 ES347603 A1 ES 347603A1 ES 347603 A ES347603 A ES 347603A ES 347603 A ES347603 A ES 347603A ES 347603 A1 ES347603 A1 ES 347603A1
Authority
ES
Spain
Prior art keywords
styrene
polymer
copolymer
polymer material
styrene polymer
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
ES347603A
Other languages
Spanish (es)
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 ES347603A1 publication Critical patent/ES347603A1/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

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.
ES347603A 1966-11-18 1967-11-14 Porous expanded articles of styrene polymer material Expired ES347603A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES347603A1 true ES347603A1 (en) 1969-06-01

Family

ID=11229061

Family Applications (1)

Application Number Title Priority Date Filing Date
ES347603A Expired ES347603A1 (en) 1966-11-18 1967-11-14 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)

Families Citing this family (3)

* 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
US6063485A (en) * 1994-06-24 2000-05-16 Imperial Chemical Industies Plc Foamed articles of styrenic and acrylic polymers blend
WO1997017394A1 (en) * 1995-11-09 1997-05-15 Imperial Chemical Industries Plc Foamed articles

Also Published As

Publication number Publication date
CH487199A (en) 1970-03-15
SE346943B (en) 1972-07-24
AT288717B (en) 1971-03-25
IL28942A (en) 1970-12-24
NO129910B (en) 1974-06-10
YU31805B (en) 1973-12-31
GB1210672A (en) 1970-10-28
DE1694651A1 (en) 1971-07-15
NL6715379A (en) 1968-05-20
GR34569B (en) 1968-05-24
BE706673A (en) 1968-05-17
LU54802A1 (en) 1968-01-31
YU221967A (en) 1973-06-30

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