Coating compositions formulated from polyols modified by reactio

Details Coating compositions formulated from polyols modified by reactio Coating compositions formulated from polyols modified by reactio

1980-06-04

1982-02-09

Briggs, Sr., Wilbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

525509, 525518, 260 332R, 260 334R, 260 328N, 260 326N, 260 324, C08L 6128, C08L 6124

Patent

active

043149235

ABSTRACT:
Coating compositions are formulated using a polyol with a hydroxyl functionality of at least three modified by reaction with a glycidyl ether in proportion of about 0.1 to about 4, preferably from about 0.2 to about 2 moles of glycidyl ether per mole of polyol, with which is combined, as curing agent, a compatible aminoplast resin. When the polyol is trimethylol ethane, for example, and is so modified with allyl or butyl glycidyl ether, for example, and is so modified with allyl or butyl glycidyl ether, for example, and the compositions contain a methylated melamine formaldehyde condensate as curing agent, they are especially suitable for clear top coating surfaces of wood or flat woodstock containing printing inks to simulate woodgrain, to provide a durable coating highly adherent to the inks as well as the cellulosic materials. The compositions may contain high solids content yet they are stable on storage without development of crystallization and are reducible or thinnable with water.

REFERENCES:
patent: 3267174 (1966-08-01), Fry et al.
patent: 3959201 (1976-05-01), Chang et al.
patent: 4206104 (1980-06-01), Dowbenko et al.
patent: 4218355 (1980-08-01), Chang et al.

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