Tough flexible polymer blends
US5003004A · kind A · utility
31Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1988 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Oct 25, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31576
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A blend of a softer continuous phase polymer reinforced with harder acrylic star polymer particles having reactive functional groups with crosslinking ability built in or provided by a third polymer. The harder polymer has a T.sub.g at least 10.degree. C. above that of the softer polymer, and the acrylic star polymer is preferably made by group transfer polymerization. This blend provides coating compositions, films and bulk polymer with enhanced toughness and flexibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.