Sandable polyurethane adhesive composition and laminates...

Details Sandable polyurethane adhesive composition and laminates... Sandable polyurethane adhesive composition and laminates...

C - Chemistry, Metallurgy

08

L

400/7427

C08L 75/04 (2006.01) C08G 18/76 (2006.01) C09J 175/04 (2006.01)

Patent

CA 1113199

ABSTRACT OF THE DISCLOSURE A polyurethane adhesive that is sandable when cured, the adhesive being the reaction product of a mix- ture of about one mol of a polyester polyol or polyether polyol of 2-4 hydroxyls having a molecular weight of 500 to about 3000 and 2.5 to 7 mols isocyanate composition of a mixture of toluene diisocyanate and methane di(phenyl isocyanate) containing a filler composed of silica plate- lete and glass spherical platelets, a plasticizer amount of polyvinyl chloride plasticizer and a curative amount of monomeric nitrogen containing tetraol of 200 to 1000 molecular weight.

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