Coating composition for hardening the surface of cellulosic plas

Details Coating composition for hardening the surface of cellulosic plas Coating composition for hardening the surface of cellulosic plas

1974-04-10

1976-06-29

Bleutge, John C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 173, 260 332R, 260 334R, 260 676R, 260849, C08G 1232

Patent

active

039666654

ABSTRACT:
A surface hardening coating composition for cellulosic plastics, comprising as a hardening component a mixture consisting of (a) methylolmelamine with at least part of its methylol groups optionally alkyl-etherified and (b) 0.1 to 1.5 equivalents, per equivalent of the methylolmelamine, of an aliphatic or alicyclic compound having at least two functional groups capable of reacting with the methylol groups or alkyl ethers thereof, and/or a precondensation product between the components (a) and (b). Shaped articles of cellulosic plastics having superior abrasion resistance and flexibility can be prepared by coating the surface of a shaped article of cellulosic plastics with the above composition and baking the coated article at a temperature from 60.degree.C. to the heat distortion temperature of the article.

REFERENCES:
patent: 3135707 (1964-06-01), Nyquist
patent: 3267174 (1966-08-01), Fry et al.
patent: 3352806 (1967-11-01), Hicks
patent: 3352838 (1967-11-01), Toepfl et al.
patent: 3422046 (1969-01-01), Thomas et al.
patent: 3523093 (1970-08-01), Stamberger
patent: 3542718 (1970-11-01), Davis et al.
patent: 3626023 (1971-12-01), Brizgys

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