Composite composition having high transparency and process for p

Details Composite composition having high transparency and process for p Composite composition having high transparency and process for p

1992-09-22

1995-01-31

Dean, Ralph H.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

523209, 528 25, 528 26, C08F29200, C08G 7702

Patent

active

053859880

ABSTRACT:
Disclosed is a composite composition obtained by polymerizing a radical-polymerizable vinyl compound (A) in the presence of a silica polycondensate (B) formed by hydrolysis and polycondensation of at least one alkoxysilane compound in a dispersion system of colloidal silica. This composite composition has high transparency, rigidity, toughness and thermal resistance and is hence useful in applications where inorganic glass has heretofore been used.

REFERENCES:
patent: 3324074 (1967-06-01), McManimie
patent: 3692816 (1972-09-01), Faille et al.
patent: 3904568 (1975-09-01), Yamaguchi et al.
patent: 4624971 (1986-11-01), van Tao et al.
Chemical Abstracts, AN 68893g, vol. 100, No. 10, Mar. 1984, S. S. Ivanchev, et al., "Graft Polymerization of Methyl Methacrylate with Colloidal Silica-Modified by (Methacryloyloxymethyl)Methyldi=Ethoxysilane".
Database WPIL, Feb. 17, 1988, Derwent Publications, Ltd., AN 87-352671, & JP-A-62 256 874, "UV Ray-Curable Resin Compsn. Prepn.--from Alkoxysilane Cpd. Hydrolysate, Colloidal Silica Dispersed in Organic Solvent, Polyfunctional Meth)Acrylate Cpd. and Initiator".
Journal of Applied Polymer Science, vol. 37, No. 10, May 20, 1989, pp. 2921-2931, M. Chaimberg, et al., "Graft Polymerization of Polyvinylpyrrolidone onto Silica".

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