Thermally-reversible isocyanate-based polymers
US5387667A · kind A · utility
3Cited by
74References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Aug 9, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2250/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermally-reversible polymer compositions are obtained by reacting compounds with isocyanate and labile-hydrogen functionality. High-performance characteristics are incorporated into the polymer by using aromatic polycarbonate, aromatic polyester, polyarylsulfide, and polyarylimidazolidine oligomers. The compositions are useful as hot-melt adhesives, coatings and especially finish surface coatings on composite materials such as polypropylene and polyethylene terephthalate, moldings and in injection reaction molding applications and composite and laminate fabrication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.