Grafting of functional compounds onto functional oxymethylene polymer backbones, with diisocyanate coupling agents, and the graft polymers thereof
US5043398A · kind A · utility
17Cited by
3References
14Claims
0Family size
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Key dates
| Filing date | May 12, 1989 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | May 12, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/56
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel oxymethylene graft polymers are obtained by grafting a functional compound (i.e., a polymer or compound having one or two hydroxyl, carboxyl, or amine functional groups) onto an oxymethylene backbone having pendant hydroxyl groups which serve as reactive sites for the graft reaction with diisocyanate coupling agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.