Particulate resoles with improved cure rate and sinter resistanc

Details Particulate resoles with improved cure rate and sinter resistanc Particulate resoles with improved cure rate and sinter resistanc

1981-12-11

1982-12-28

Schain, Howard E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

428526, 428529, 524 29, 524 33, 524 49, 524459, 524595, 524596, 525480, 525504, 528140, 528147, 528155, 528162, 528165, C08G 828, C08G 1406, C08G 1412

Patent

active

043663036

ABSTRACT:
Particulate resoles are produced by mixing phenol, formaldehyde and amine in an aqueous medium containing a protective colloid. The resoles exhibit improved cure rate and sinter resistance when an alkaline compound is added to the reaction mixture after particulate formation.

REFERENCES:
patent: 1807545 (1931-05-01), Ostersetzer et al.
patent: 2608536 (1952-08-01), Sterling
patent: 4206095 (1980-06-01), Wynstra et al.
patent: 4269949 (1981-05-01), Hickson et al.

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