Poly(ether esters) of phthalic acid salts and di(halomethyl) ether
US3943164A · kind A · utility
1Cited by
1References
5Claims
0Family size
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Key dates
| Filing date | Dec 5, 1972 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Dec 5, 1992 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Poly(ether esters) are prepared by reacting a phthalic acid salt with a di(haloalkyl) ether in a polar solvent using a phosphonium salt catalyst. The resulting poly(ether esters) are useful in olefin polymers to improve dye receptivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.