Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1985-07-15
1986-12-30
Phynes, Lucille M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528 89, 528 93, C08G 5968
Patent
active
046329714
ABSTRACT:
A heat stable thermoplastic phenolic resin is prepared by (I) reacting (A) the reaction product of (1) at least one epoxy resin having an average of more than one vicinal epoxy group per molecule such as a diglycidyl ether of bisphenol A with (2) one or more polyhydric phenols such as bisphenol A; and optionally (B) one or more polyhydric phenols such as bisphenol A; with (II) a material having only one vicinal epoxy group per molecule such as the glycidyl ether of t-butyl phenol or mixture of such materials; in the presence of an effective quantity of a suitable catalyst such as ethyltriphenylphosphonium acetate.acetic acid complex.
REFERENCES:
patent: 4302574 (1981-11-01), Doorakian et al.
patent: 4354015 (1982-10-01), Doorakian et al.
patent: 4358578 (1982-11-01), Brownscombe
patent: 4552814 (1985-11-01), Cavitt et al.
patent: 4568735 (1986-02-01), Li
Handbook of Epoxy Resins, by Lee and Neville, McGraw-Hill, 1967, pp. 7-20, 10-4, 10-5, 13-6, 16-9, 21-35 and 24-14.
Development of Lane Delineation with Improved Durability, J. M. Dale, Federal Highway Administration, Report No. FHWA-RD-75-70, Jul. 1975.
Carter James G.
Phynes Lucille M.
The Dow Chemical Company
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