Tin free polymer polyols
US9399696B2 · kind B2 · utility
1Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | May 26, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/4829
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Embodiments include polymer polyol dispersions which include a polyol liquid phase and solid particle phase. Embodiments include methods of making the polymer polyol dispersions. The polymer polyol dispersions are essentially free of tin, have a solid content of between about 20 and 50 wt % based on the total weight of the polymer polyol dispersion, and have a viscosity at 20 C. of less than 9000 mPas. The solid particle phase has more than 90% by weight of particles in the solid particle phase having a particle diameter of less than 5 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.