Carboxyl modified olefinic copolymer compositions
US4888393A · kind A · utility
12Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1988 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | May 19, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a novel low profile additive (LPA) for uncured polyester resins and the resultant molding compositions. The low profile additive is the reaction product of an ethylene/alphaolefin copolymer with a carboxylic acid or anhydride, to thereby form a non-thermoplastic carboxyl modified polyolefin. The novel LPA is a remarkably effective dimensional stabilizer and has displayed the ability to achieve net expansion in a cured polyester resin molding composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.