Sprayable polyurea elastomer made from reaction of isocyanate compound with amine terminated polyether and di(methylthio)toluene diamine and diethyltoluene diamine chain extenders
US5124426A · kind A · utility
27Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1989 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Sep 26, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2150/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A pourable and/or sprayable polyurea elastomer is disclosed. The elastomer includes an isocyanate, an amine terminated polyoxyalkylene polyol, and a chain extender. The isocyanate is preferably a quasi-prepolymer of an isocyanate and a material selected from at least one polyol, a high molecular weight polyoxyalkyleneamine or a combination thereof. The chain extender includes at least di(methylthio)-toluene diamine. A method for improving the flowability of a polyurea elastomer, thereby permitting the elastomer to be sprayed or, optionally, poured, is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.