Epoxidation products of 1,1,1-tri-(hydroxyphenyl) alkanes

Details Epoxidation products of 1,1,1-tri-(hydroxyphenyl) alkanes Epoxidation products of 1,1,1-tri-(hydroxyphenyl) alkanes

1981-10-30

1983-07-19

Nielsen, Earl A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528112, 528124, 549517, 549551, 549559, 549560, C08G 5932

Patent

active

043944965

ABSTRACT:
The invention comprises polyglycidyl ethers of tris(hydroxyphenyl)alkanes, their blends with other epoxy compounds and their cured products. The invention also comprises a process wherein the coupling reaction is carried out in the absence of coupling catalysts and solvents and the subsequent dehydrohalogenation is done in the presence of a methylethylketone/toluene mixture or an equivalent solvent. The epoxides of the invention have superior and unexpected high-temperature properties, without sacrificing other properties such as flex strength, flex modulus and the like.

REFERENCES:
patent: 2857362 (1958-10-01), Sheperd et al.
patent: 2965611 (1960-12-01), Schwarzer
patent: 3687897 (1972-08-01), Clarke
patent: 3787451 (1974-01-01), Mah
patent: 3789053 (1974-01-01), Clarke
Dearborn et al., "Epoxy Resins from Bis, Tris, and Tetrakis-glycidyl Ethers, Ind. & Eng. Chem.", 45(12), 2715-2721, (1953).

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