Phenolic resin compositions

Details Phenolic resin compositions Phenolic resin compositions

1990-04-20

1991-07-16

Kight, III, John

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...

524740, 523146, 523147, 525508, 528219, C08K 513, C08L 9900, C08L 6100, B22C 122

Patent

active

050326422

ABSTRACT:
A phenolic resin composition comprises an ester-curable phenol-aldehyde resin in alkaline aqueous solution wherein the phenol-aldehyde resin is a methylolated phenolic novolak resin. Preferably, during manufacture of the methylolated phenolic novolak resin, unreacted phenol is removed. The composition may be employed, for reaction with an organic ester hardener, as a binder in the production of foundry moulds and cores having high strength. The further incorporation of an aryloxy alcohol in the novolak resin binder additionally improves the final strength of products obtained by a gas curing technique using ester vapor, such as that of methyl formate.

REFERENCES:
patent: 4010163 (1977-03-01), Hesse et al.
patent: 4939188 (1990-07-01), Gerber

Affiliated with

Also associated with

Rating

Phenolic resin compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phenolic resin compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phenolic resin compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-132426