Core-shell impact modifiers for styrenic resins
US5686528A · kind A · utility
51Cited by
18References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1993 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Feb 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/902
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
High-impact poly(styrene) resins modified with small-particle-size, multi-stage impact modifiers having a crosslinked poly(butadiene) core and a poly(styrene) or other vinylaromatic polymer shell show an improved balance of impact strength, stiffness and surface gloss, and an improved resistance to environmental stress crazing, when compared to conventional high-impact poly(styrene).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.