Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1978-06-09
1980-07-29
Nielsen, Earl A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528 87, 528 89, 528 90, 528 95, 26034815, 568631, 568640, C08G 6528, C08G 5906
Patent
active
042152100
ABSTRACT:
A novel resin composition which is composed of molecules having an epi-bis type main skeleton of the formula ##STR1## X.sub.1 -X.sub.4 : H, Cl or Br R: H, or CH.sub.3
and has a Gardner-Holdt viscosity of C to Z.sub.8 determined at 25.degree. C. for a solution in butyl carbitol in a concentration of 40% by weight.
At least 40% of the entire terminal groups of the molecules of the novel composition consists of .alpha.-glycol groups of the formula ##STR2## wherein R represents hydrogen or methyl. The composition is more rapidly curable at lower temperatures than known epoxy resins having an epi-bis type main chain skeleton, and is useful as a paint or adhesive and also as an adhesion improver for other resins.
REFERENCES:
patent: 2558949 (1951-07-01), Greenlee
patent: 3405093 (1968-10-01), Walker
patent: 3477990 (1969-11-01), Dante et al.
Brzozowski et al., "Heat and Chemical Resistant Polyurethane Materials", Chemical Abstracts 85, 47517u, (1976).
Okayama Kiyoaki
Yamamoto Yojiro
Mitsubishi Petrochemical Company Limited
Nielsen Earl A.
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