Impact-resistant polystyrene compositions contg a
According to the parent patent, a moulding composition is formed by an intimate mixture of (a) a product obtained by polymerising a solution, in styrene, of a rubber which is not more than slightly cross-linked and (b) 5-30 weight %, on the polystyrene in the total mixture, of a cross-linked or cros...
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| creator | HOFMANN,JUERGEN KASTNING,ERNST-GUENTHER,DR BRONSTERT,KLAUS,DR ECHTE,ADOLF,DR PANKRAZ,HOFMANN,HERMANN |
| description | According to the parent patent, a moulding composition is formed by an intimate mixture of (a) a product obtained by polymerising a solution, in styrene, of a rubber which is not more than slightly cross-linked and (b) 5-30 weight %, on the polystyrene in the total mixture, of a cross-linked or cross-linkable rubber which includes a gel. According to the present improvement, (b) is a block copolymer with a base of 1 or more diolefine blocks which include 1 or more monomers, and 1 or more styrene blocks; the proportion of diolefine blocks:styrene blocks is 85:15-15:85. The compositions have improved resilience and a more polished surface. |
| format | Patent |
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According to the present improvement, (b) is a block copolymer with a base of 1 or more diolefine blocks which include 1 or more monomers, and 1 or more styrene blocks; the proportion of diolefine blocks:styrene blocks is 85:15-15:85. 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According to the present improvement, (b) is a block copolymer with a base of 1 or more diolefine blocks which include 1 or more monomers, and 1 or more styrene blocks; the proportion of diolefine blocks:styrene blocks is 85:15-15:85. The compositions have improved resilience and a more polished surface.</abstract><edition>1</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; ger |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | Impact-resistant polystyrene compositions contg a |
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