Process for production of acryloyloxy- or methacryloyloxy-terminated polyesters
US4330643A · kind A · utility
6Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1981 |
| Grant date | May 18, 1982 |
| Priority date | — |
| Expiry date | Feb 23, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/47
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for production of an acryloyloxy- or methacryloyloxy-terminated polyester is described, which comprises reacting a specific hydroxy-terminated polyester with acrylic acid or methacrylic acid, wherein the hydroxy-terminated polyester comprises (a) a dicarboxylic acid unit comprising about 10 to about 80 mol % of a terephthalic acid unit and about 90 to about 20 mol % of another dicarboxylic acid unit and (b) a dihydric alcohol unit containing about 30 mol % or more of a dihydric alcohol unit containing 3 or more carbon atoms and having a number average molecular weight of about 400 to about 5,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.