Graft prestabilizing and stabilizing copolymers and their preparation, process for obtaining dispersions of polymers/polyols and process for obtaining polyurethane foams
US5081180A · kind A · utility
10Cited by
5References
40Claims
0Family size
Inventors
Key dates
| Filing date | Nov 17, 1989 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Nov 17, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Prestabilizing copolymers comprising the product of the in situ reaction of a mixture of ethylenically unsatured monomers containing at least one mono-unsaturated monomer containing no groups which can be alkoxylated and one unsaturated monomer containing a group which can be alkoxylated, a prepolyol of low molecular weight and a polymerization catalyst as well as an alkoxylating agent for the abovementioned reaction product chosen from the group comprising ethylene oxide, propylene oxide and their mixtures, process for obtaining dispersions of polymers/polyols and process for obtaining polyurethane foams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.