Process for producing acetophenone-modified phenolic resin

Details Process for producing acetophenone-modified phenolic resin Process for producing acetophenone-modified phenolic resin

1978-10-02

1979-08-28

Schain, Howard E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

260 7, 260 293, 260 328R, 260 334R, 428473, 428529, 528127, C08G 802, C08G 826

Patent

active

041661664

ABSTRACT:
Phenolic novolak resins are produced from acetophenone, particularly by-product acetophenone obtained from the cumene process for manufacturing phenol, by the process of (1) reacting acetophenone with an aldehyde under alkaline conditions, and (2) reacting the product of step (1) with a phenol under acidic conditions. Phenolic resole resins are produced by reacting the product of step (2) with an aldehyde under alkaline conditions. The acetophenone modified phenolic resins are useful as a molding material, a felting or batting binder, a grinding stone binder, a foundry sand binder and an adhesive for timbers.

REFERENCES:
patent: 2241422 (1941-05-01), Rosenblum
patent: 2960494 (1960-11-01), Lewis
patent: 3351605 (1976-11-01), Harvey
patent: 3390127 (1968-06-01), Schick et al.
patent: 3862089 (1975-01-01), Shinohara et al.
patent: 4018739 (1977-04-01), Okamoto et al.
Chem. Abstracts, vol. 75, 1971, 6869k, Penfold et al.

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