Polyglycidyl ethers of branched novolacs

Details Polyglycidyl ethers of branched novolacs Polyglycidyl ethers of branched novolacs

1983-09-30

1984-10-02

Schain, Howard E.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525480, 525481, 525491, 525507, 528 98, C08G 836, C08G 5932

Patent

active

044749295

ABSTRACT:
Branched epoxy novolacs having from 5 to 10 (or more) glycidyl ether groups per molecule are prepared by the epoxidation of novolacs made by the reaction of mono- or dihydric phenols with mono- or dinuclear diphenols ring-substituted with 3- or 4-methylol and/or alkoxymethyl groups.

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patent: 4342852 (1982-08-01), Takeda et al.
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patent: 4368298 (1983-01-01), Okayama et al.
patent: 4390664 (1983-06-01), Kanayama
patent: 4394496 (1983-07-01), Schrader

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