Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1992-02-13
1993-06-08
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
549553, C08G 5828, C08G 5932, C07D30312, C07D30334
Patent
active
052180751
ABSTRACT:
Polyethers having improved barrier to oxygen are normally solid, thermoplastic polyethers having aromatic ether repeating units in their backbones and pendent hydroxyl moieties and pendent amido, N-substituted amido and/or hydroxyalkyl moieties. Such polyethers are prepared by reacting diglycidyl ethers of dihydric aromatic compounds such as the diglycidyl ether of bisphenol A with dihydric phenols having pendent amido, N-substituted amido and/or hydroxyalkyl moieties such as 2,2-bis(4-hydroxyphenyl)acetamide and 3,5-dihydroxybenzamide.
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"Selectively in New Beta Adrenergic Blocking Agents". (3-Amino-2-Hydroxypropoxy) Benzamides. Shtacher et al., Chemical Abstract 79(15):87337t (1973).
Brennan David J.
Haag Anthony P.
Kram Shari L.
White Jerry E.
Krass Frederick
Marquis Melvyn I.
The Dow Chemical Company
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