Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1996-05-31
1998-03-17
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528110, 528361, 528408, 525407, 525523, 549516, 568607, 568611, 568618, 568619, 568620, 568660, 568662, 568664, 568670, 568679, 568680, 568811, 568822, 568831, 568867, 568678, C07C 4103, C07C 4313
Patent
active
057287961
ABSTRACT:
A process reaction between: (1) a compound that contains one or more epoxide moieties per molecule, and (2) a compound that contains one or more primary aliphatic hydroxyl groups per molecule; is catalyzed by: (3) a catalyst compound containing one or more trifluoromethanesulfonate moieties and one or more silyl moieties and run at a temperature of no more than 130.degree. C., such that the catalyst preferably catalyzes reaction at the primary aliphatic hydroxyl group, so that the resulting resin does not gel.
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patent: 5117010 (1992-05-01), Cheng
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Chemical Abstracts 98:53239, "Trimethylsilyl Triflate Induced Reaction . . . ", Shirahama et al.
Chemical Abstracts 97:92373,"Trimethylsilyl Triflate in Organic Synthesis", Noyori et al.
1993 Derwent Publication 93-353399/45 Abstract of EP 0 569 331.
Bertram James L.
Liao Zeng K.
Krass Frederick
The Dow Chemical Company
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