Polymer particle dispersions with polyols
US9644062B2 · kind B2 · utility
3Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2013 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Oct 17, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/53
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A toughener composition comprising: a) a polyol component selected from the group consisting of a polyether polyol, a polyester polyol, a polycaprolactone polyol, a hydroxyl-terminated polybutadiene, and mixtures or copolymers thereof; and b) a core shell rubber comprising a rubber particle core and a shell layer wherein said core shell rubber has a particle size of from 0.01 μm to 0.5 μm is disclosed. The toughener can be used in epoxy resin compositions for composite applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.