Hydroxy ether polymers as thermoplastic barrier resins
US5686551A · kind A · utility
16Cited by
12References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1994 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Jan 7, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/621
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermoplastic hydroxy ether polymers containing inertly substituted or unsubstituted stilbene and ether linkages in the backbone chain and pendant hydroxyl moieties are prepared by reacting (a) an inertly substituted or unsubstituted dihydroxy-stilbene with (b) a diglycidyl ether and, optionally, (c) a difunctional monomer under conditions sufficient to cause the hydroxyl moieties to react with the epoxy moieties to form ether linkages and pendant hydroxyl moieties. The polymers exhibit excellent oxygen barrier properties and are useful in packaging oxygen-sensitive materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.