Method for accelerating cure of resole type phenolic resins

Details Method for accelerating cure of resole type phenolic resins Method for accelerating cure of resole type phenolic resins

1981-10-14

1984-01-17

Schain, Howard E.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523143, 523145, 524442, 525501, 528155, C08L 6110, C08L 6112, C08L 6114

Patent

active

044264844

ABSTRACT:
The cure of resin compositions comprising a mixture of a resole type phenol aldehyde resin and a novolac type phenol formaldehyde resin is improved by employing resorcinol as all or part of the phenolic component in the novolac type resin. The resin compositions are particularly useful as binders for foundry sand.

REFERENCES:
patent: 2478943 (1949-08-01), Rhodes
patent: 2524079 (1950-10-01), Rhodes
patent: 2952040 (1960-09-01), Phillips
patent: 3944514 (1976-03-01), Nishiyama et al.
patent: 4055528 (1977-10-01), Kim
patent: 4089837 (1978-05-01), Luttinger et al.
patent: 4251408 (1981-02-01), Hesse et al.
patent: 4252700 (1981-02-01), Funabiki et al.
patent: 4317896 (1982-03-01), Holik
patent: 4345054 (1982-08-01), Takeda et al.

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