Polymerizable unsaturated compounds, curable resin compositions containing the same, and products of curing thereof
US6277929A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2000 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Jan 27, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/52
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An unsaturated polyester (i) having a weight-average molecular weight (Mw) of 1,000-100,000 and at least two carbon-carbon unsaturated bonds in the molecule thereof obtained by esterifying an unsaturated carboxylic acid (b) with a polyester-polyol (a) obtained by subjecting a polybasic carboxylic acid containing polymerized fatty acid and/or polymerize fatty acid ester to polycondensation with a polyhydric alcohol; and an unsaturated (poly)urethane having Mw of 1,000-100,000 and at least two carbon-carbon unsaturated bonds in molecule obtained by reacting said polyester-polyol (a), polyisocyanate (d) and compound (e) having active hydrogen and polymerizable carbon-carbon unsaturated bond. Said unsaturated polyester and unsaturated (poly)urethane exhibit excellent adhesive property, heat resistance, water resistance and flexibility after being cured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.