UV-absorbing condensation polymeric compositions and products therefrom
US4707537A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1986 |
| Grant date | Nov 17, 1987 |
| Priority date | — |
| Expiry date | Sep 30, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/68
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyester compositions useful in formed articles such as beverage bottles and having condensation reacted therein at least one UV-absorbing compound of the formula ##STR1## wherein X is hydroxyl, carboxy, carbalkoxy, substituted carbalkoxy, or acyloxy; Y is cyano, carbamyl, substituted carbamyl, aryl, acyl, alkylsulfonyl, substituted alkylsulfonyl, phenylsulfonyl, or substituted phenylsulfonyl; R is selected from -alkylene-O-alkylene-, -alkylene-S-alkylene-, -alkylene-N(-SO.sub.2 alkyl)-alkylene-, straight or branched chain alkylene or such alkylene substituted with an X substituent; and R.sub.1 is hydrogen or 1-3 groups selected from alkyl, alkoxy and halogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.