Basic liquid composition suitable for producing transparent coat

Details Basic liquid composition suitable for producing transparent coat Basic liquid composition suitable for producing transparent coat

1983-03-08

1984-11-27

Marquis, Melvyn I.

Coating processes

With post-treatment of coating or coating material

Heating or drying

4273722, 4273741, 524379, 528 10, 528 12, 528 18, 528 21, 528 39, A23F 300

Patent

active

044851308

ABSTRACT:
The basic composition comprises, in solution in at least one organic solvent, with or without water, from 10 to 40% of a hard-enable organosilicic compound resulting from a first hydrolysis reaction achieved at a temperature lower than 50.degree. C. in the presence of a carboxylic acid and water on at least one R'Si(OR).sub.4 alkoxysilane with n=1 or 2, in association or without association with at least one Si(OR").sub.4 -alkoxysilane, then, a second hydrolysis at a temperature lower than 40.degree. C. after removal of the formed volatile solvents and addition of a less volatile solvent and at least one R"'Si(OR.sub.1).sub.3 -alkoxysilane, said reaction being followed with the setting of the pH to between 3.5 and 5.5 by an organic base.

REFERENCES:
patent: 3389114 (1968-06-01), Burzynski et al.
patent: 3451838 (1969-06-01), Burzynski et al.
patent: 3460980 (1969-08-01), Burzynski
patent: 3647510 (1972-03-01), Gagnon et al.
patent: 3650808 (1972-03-01), Gagnon
patent: 3707397 (1972-12-01), Gagnon
patent: 3790527 (1974-02-01), Merrill
patent: 4308371 (1981-12-01), Tanaka et al.

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