Urethane-modified epoxy vinyl ester resin
US5756600A · kind A · utility
14Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Aug 9, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24994
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition useful as a sheet or bulk molding compound comprises a urethane-modified vinyl ester resin (A), or acid-addition vinyl ester resn (A') obtained by reacting the hydroxyl groups in (A) with a polybasic acid anhydride (B), and a double bond(s)-containing monomer (C), wherein (A) is prepared by reacting a vinyl ester resin (F) derived from the reaction of an epoxy resin (D) and an unsaturated monobasic acid (E), with a polyisocyanate (H) and, optionally, a hydroxyl group(s)-containing (meth)acrylate (G) in an isocyanate:hydroxyl groups equivalent ratio of from 0.01-1.2:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.