Synthesis of tetrafunctional polyethers and compositions formed therefrom
US5099042A · kind A · utility
8Cited by
4References
6Claims
0Family size
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Key dates
| Filing date | Mar 14, 1989 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | Mar 14, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/2609
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers are produced from 4 and 5 member cyclic ethers, which polymers have hydroxyl functionalities of 4. The cyclic ethers are polymerized with an acid catalyst and a tetraol initiator having the general formula: ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.