Process for preparing highly filled acrylic articles

Details Process for preparing highly filled acrylic articles Process for preparing highly filled acrylic articles

C - Chemistry, Metallurgy

08

L

18/1106

C08L 33/10 (2006.01) C04B 26/06 (2006.01) C08F 265/06 (2006.01) C08K 3/00 (2006.01)

Patent

CA 1113668

IMPROVED PROCESS FOR PREPARING HIGHLY FILLED ACRYLIC ARTICLES Inventors: L. H. Smiley H. L. Tigelaar ABSTRACT Disclosed herein is a process for preparing highly filled acrylic articles comprising: (a) providing a solution of an acid-functional acrylic polymer-in-monomer solution; (b) mixing into said solution a catalytic amount of polymerization promoter system; (c) blending into said mixture 40 percent to 80 percent inert particulate filler to form a casting mixture. (d) introducing said casting mixture to a mold; and (e) curing said molded casting mixture; whereby the viscosity of said casting mixture is controlled and the settling of said filler is minimized by the presence of units from said carboxylic acid in said polymer. -1-

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