Polyester comprising a residue of isophthalic acid, terephthalic acid, ethylene glycol and an aromatic diol derivative
US6054551A · kind A · utility
12Cited by
14References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1999 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Jul 13, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/19
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyester having increased UV absorption comprising (i) a residue of a dicarboxylic acid component comprising terephthalic and from about 1 to about 20 mole % of isophthalic acid, (ii) a residue of a glycol component comprising ethylene glycol, and (iii) from about 0.01 mole % to about 15 mole % of a residue of an aromatic diol derivative, wherein the aromatic diol derivative has a least two polyester reactive groups that are capable of participating in a polyester-forming reaction and the total mole % for components (i), (ii) and (iii) is 200 mole %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.