Elastic-thermoplastic copolymers with good thermal-and light-stability

Thermoplastics moulding materials consisting of polymerized conjugated diene and copolymerized styrene and acrylonitrile (or alkyl derivatives thereof) are stabilized by means of 0.1-4% by weight of the materials of a mixture of (a) 1-80% of 2,21-methylene-bis-4-methyl -6-cyclohexylphenol and (b) 99...

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Bibliographic Details
Main Authors ROHR HARRY, DINGES KARL, OTT KARL-HEINZ, KNAPP KARL HEINRICH
Format Patent
LanguageEnglish
Published 02.08.1967
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:Thermoplastics moulding materials consisting of polymerized conjugated diene and copolymerized styrene and acrylonitrile (or alkyl derivatives thereof) are stabilized by means of 0.1-4% by weight of the materials of a mixture of (a) 1-80% of 2,21-methylene-bis-4-methyl -6-cyclohexylphenol and (b) 99-20% of zinc sulphide. The thermoplastic materials may be formed by blending the diene polymer with a styrene-acrylonitrile copolymer, or by grafting styrene and acrylonitrile on to the diene polymer and, if required, blending the product with separately prepared styrene-acrylonitrile copolymer. Examples describe stabilizing thermoplastic materials made by latex-grafting styrene and acrylonitrile on to polybutadiene and blending the products with separately prepared styrene-acrylonitrile and alpha-methylstyrene-acrylonitrile copolymers.
Bibliography:Application Number: GB19640034327