Non-glossy rubber modified aromatic vinyl-vinyl cyanide copolymer and method for continuously preparing the same
US8362143B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Dec 29, 2008 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Sep 9, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L55/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein is a non-glossy rubber modified aromatic vinyl-vinyl cyanide copolymer and a method for continuously preparing the same. The copolymer comprises about 80 to about 93% by weight of an aromatic vinyl-vinyl cyanide copolymer grafted onto about 7 to about 20% by weight of a diene-based rubber, and a dispersed phase of the copolymer has an average rubber particle diameter of about 6 to about 20 μm and a span of about 1.2 to about 2.8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.