GB1030013A - Production of granular expandable thermoplastic compositions - Google Patents

Production of granular expandable thermoplastic compositions

Info

Publication number
GB1030013A
GB1030013A GB968363A GB968363A GB1030013A GB 1030013 A GB1030013 A GB 1030013A GB 968363 A GB968363 A GB 968363A GB 968363 A GB968363 A GB 968363A GB 1030013 A GB1030013 A GB 1030013A
Authority
GB
United Kingdom
Prior art keywords
vinyl
derived
acrylonitrile
esters
styrene
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
GB968363A
Inventor
Guenther Daumiller
Karl Herrle
Rolf Dieter Rauschenbach
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1030013A publication Critical patent/GB1030013A/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
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions 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; Compositions of 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
    • 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
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • 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
    • C08J2427/00—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 a halogen; Derivatives of such polymers
    • C08J2427/02—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/04—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions 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 a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions 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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions 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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms

Landscapes

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

Abstract

A granular thermoplastic composition comprises an intimate mixture of (A) at least one substantially halogen free polymer or copolymer derived from aromatic or cycloaliphatic vinyl compounds, (B) at least one polymer or copolymer of vinyl chloride or vinylidene chloride, (C) 2-20% of a gaseous or liquid expanding agent, the weight of (A) being at least 1 1/2 times that of (B) and the chlorine content of the composition being 8-25%. Copolymers (A and (B) may contain up to 30 and 40% respectively of units other than those specified above. In addition to (A) and (B) the composition may contain up to 20% of other polymers and copolymers. Other additives may be: flame retardants, e.g. SbO3, 1,2,5,6,9,10-hexabromocyclododecane, hexabromocyclohexane and tris - (2,3 - di - bromopropyl) phosphate; flame retardant activators, e.g. dicumyl peroxide; plasticizers, e.g. polyvinyl pyrrolidone, hydroxyethyl cellulose, BaSO4 and CaHPO4; organic and inorganic fillers and colouring matter. The composition may be formed by polymerizing the monomer precursors of (A) in aqueous suspension, adding the monomer precursors of (B) and polymerizing them. The first polymerization may be carried out at 50-120 DEG C. in the presence of 0.1-2.0% catalysts, e.g. dibenzoyl peroxide, lauroyl peroxide or azodiisobutyronitrile and 0.0573.0% plasticizers. 0.1-3.0% of catlyst may be added before the second polymerization at 30-80 DEG C. The expanding agent may be added prior to, during or after the second polymerization. In an alternative method polymers (A) and (B) in a plasticized state may be mixed with the other additives in an extruder at 60-220 DEG C. and the resulting solidified composition may be granulated. (A) may be derived from acrylonitrile, acrylic esters, methacrylic esters, acrylamide, maleic esters, itaconic esters, divinyl benzene or butadiene in addition to styrene, a -methyl styrene, o- and p-vinyl toluene and vinyl cyclohexane. Polyvinyl cycloaliphatic compounds may be derived by hydrogenation of polyvinyl aromatic compounds. Copolymers (B) may be partially derived from acrylonitrile, maleic esters, acrylic esters, vinyl acetate, vinyl ethers or vinyl ketones; (C) may boil between 20 and 80 DEG C. and may be a pentane, hexane, cyclopentane petroleum fraction, CH2Cl2, benzene, acetone, ethyl acetate, propane butane or vinyl chloride. 4-12% may be used. In addition to (A) and (B) polymers and copolymers may be present which are derived from: acrylonitrile, itaconic esters, maleic esters, methacrylonitrile or acrylamide. In examples (1-3, 9-15) polymer (A) is derived from styrene and acrylonitrile (1), methylacrylate (11, 12), 2,5-dichlorostyrene (13), divinyl benzene (14), vinyl alcohol (14, 15) and vinyl toluene (15 and 21). Polymer (B) is derived by polymerization in the presence of (A) of vinylidene chloride (1), vinyl chloride (2, 3, 9-15), acrylonitrile (1, 9, 10) and dimethyl maleate (3, 14, 15). Polymeration was carried out in water suspension (1-3, 9, 10, 14, 15) and under nitrogen (1, 9, 10). Other additives are: blowing agents, pentane (1, 3, 9, 10, 14, 15), hexane (2,12 and 13), ethanol (3, 14, 15) and butane (11-13); polyvinylpyrrolidone (1, 9, 10); catalyst, azodiisobutyronitrile and benzoyl peroxide (2, 3, 11-13, 15); plasticizers, sodium carboxymethyl cellulose (2, 11-13) and stearic acid (3, 14, 15); polyvinyl alcohol (3); and flame retardants, SbO3 (3, 14, 15) and sodium phosphate (3, 14, 15). In examples (4-8, 16-20) (A) is derived from styrene (4-6, 8, 16-20), acrylonitrile (6), butadiene (6, 17) and vinyl cyclohexane (7). (B) is derived from vinyl chloride (4-8, 16-19, 20a, 20b), vinylidene chloride (7, 20c), vinyl isobutyl ether (20a), vinyl acetate (20b) and ethyl acrylate (20c). Granules of (A) and (B) are mixed and extruded optionally into water (4-7, 16-20). Additives are: blowing agents: hexane (4, 16), pentane (5, 6, 8, 17-20), ethyl acetate (5, 6, 18-20), acetone (7), petroleum (b.p. 35-45 DEG C.) (7) and propane (17); SbO3 (4-6, 16-19, 20a, 20b); a chloroparaffin (8); hexachlorocyclododecane (20c); polyvinylpyrrolidone (7); ferrocene (8); polybutylacrylate (19) and manganese acetylacetonate (20c). In Example (21) styrene and o-vinyl toluene are copolymerized in the presence of benzoyl peroxide, azodiisobutyronitrile, sodium acetate, and hydroxyethylcellulose.
GB968363A 1962-03-16 1963-03-12 Production of granular expandable thermoplastic compositions Expired GB1030013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0066384 1962-03-16

Publications (1)

Publication Number Publication Date
GB1030013A true GB1030013A (en) 1966-05-18

Family

ID=6975105

Family Applications (1)

Application Number Title Priority Date Filing Date
GB968363A Expired GB1030013A (en) 1962-03-16 1963-03-12 Production of granular expandable thermoplastic compositions

Country Status (4)

Country Link
BE (1) BE629640A (en)
DK (1) DK104998C (en)
GB (1) GB1030013A (en)
NL (1) NL290156A (en)

Also Published As

Publication number Publication date
BE629640A (en)
DK104998C (en) 1966-08-01
NL290156A (en)

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