Elastomeric polyisocyanate-based polymers from polyoxyalkylene polyols containing internal polyoxyethylene blocks
US5122548A · kind A · utility
5Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1990 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Mar 23, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/914
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to elastomeric polyisocyanate-based polymers, particularly polyurethane elastomeric polymers, prepared from polyol compositions comprising a polyoxyalkylene polyol having a hydroxyl equivalent weight of from about 800 to about 3000 and containing from 10 to 40 weight percent polymerized ethylene oxide wherein the ethylene oxide is distributed as a plurality of internal polyoxyethylene blocks having a molecular weight of from about 176 to about 600, and a polyoxyethylene cap use of such polyols. Polyols provides for polymers exhibiting desirable physical properties including good abrasion wear resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.