Low temperature, storage stable mixtures of polyester prepolymers and flow modifiers
US4469616A · kind A · utility
7Cited by
2References
31Claims
0Family size
Inventor
Key dates
| Filing date | Jun 27, 1983 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Jun 27, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There are provided low temperature, storage stable, liquid mixture of (1) isocyanato-containing prepolymers obtained from the reaction of linear and/or slightly branched polyols and a polyisocyanate characterized by a methylene group --CH.sub.2 -- bonded to two benzenoid nuclei, and (2) a non-hydroxyl-containing flow modifier which is compatible with the said prepolymer. Novel liquid mixtures thus prepared exhibit little tendency to crystallize or phase separate when stored for prolonged periods of time, i.e., well below room temperature for several days.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.