Carbonate blend composition having improved resistance to environmental stress cracking
US9120925B2 · kind B2 · utility
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27References
16Claims
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Key dates
| Filing date | Apr 21, 2011 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Apr 21, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to carbonate blend compositions demonstrating improved environmental stress crack resistance in combination with an excellent blend of impact, thermal, and physical properties. Said carbonate blend composition comprises a polycarbonate, a polyester, and a silicon-containing graft (co)polymer having a core-shell morphology, comprising a shell that contains (co)polymerized alkyl(meth)acrylate and glycidyl methacrylate grafted to a composite rubber core that contains polyorganosiloxane and poly(meth)alkyl acrylate components and methods to make said compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.