Polyhydric phenol and epoxy resin and epoxy resin composition de

Details Polyhydric phenol and epoxy resin and epoxy resin composition de Polyhydric phenol and epoxy resin and epoxy resin composition de

1993-11-22

1995-03-07

Bleutge, John C.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

525507, 528153, C08G 836, C08G 5908

Patent

active

053959124

ABSTRACT:
There is provided an epoxy resin composition represented by the general formula: ##STR1## wherein R.sub.1 represents an alkyl or cycloalkyl group having 1 to 9 carbon atoms, or halogen, R.sub.2 to R.sub.4 independently represent hydrogen, an alkyl or cycloalkyl group having 1 to 9 carbon atoms, or halogen, and X represents hydrogen, an alkyl group having 1 to 9 carbon atoms, or an aryl group, and n represents an average number of repeating units of 0.1 to 1.6. Cured products prepared from the epoxy resin have a lower hygroscopicity and a balance between thermal resistance and curing performance.

REFERENCES:
patent: 1873849 (1932-08-01), Moss
patent: 2844553 (1958-07-01), Taylor et al.
patent: 3829401 (1974-08-01), Futaki
patent: 4550128 (1985-10-01), Chellis
Erich et al., Effect of Molecular Structure on Mechanical Properties of Epoxy Resins, Journal of Applied Polymer Science III: 296 (1960).

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