Impact modification of polyimides
US5200465A · kind A · utility
4Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1990 |
| Grant date | Apr 6, 1993 |
| Priority date | — |
| Expiry date | Dec 11, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L101/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The impact resistance of polyimides is improved by the addition of impact modifiers comprising, as a first stage, an elastomeric polydiorganosiloxane optionally polymerized simultaneously with but separately from one or more vinyl monomers, and as at least one grafted subsequent stage a polymer or copolymer of acrylonitrile, methacrylonitrile, a vinyl aromatic compound, (meth)acrylic acid, alkyl (meth)acrylate or (meth)acrylamide monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.