Reaction injection molded polyurethanes having particular flexural modulus factors and at least two thermal transition temperatures in a particular range
US4246363A · kind A · utility
47Cited by
8References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1979 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Jun 18, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2120/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyurethane reaction injection molded products are prepared which have flexural modulus factors (-20.degree. F./158.degree. F.) below 3.4 and often below 2. They are prepared by employing three different polyols or mixtures of polyols, each polyol having a specified reactivity relationship and are employed within specified solubility parameter relationships. These products also have at least two thermal transition temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.