Polyether resins and process for preparing the same
US5051492A · kind A · utility
9Cited by
10References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 19, 1990 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Jun 19, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/62
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the preparation of a polyether resin having an epoxy group content of less than 0.2 meq/g and containing or average n/3-0.5 to n/3+2.5 primary hydroxyl groups, the process comprising reacting a glycidyl ester of a C.sub.9-11 branched aliphatic acid with an aliphatic primary polyhydric alcohol having n primary hydroxyl groups and 5 to 16 carbon atoms, n having a value of 3 to 6, in the presence of an etherification catalyst selected from a tin, zinc or iron compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.