Silane coupling agents

Details Silane coupling agents Silane coupling agents

C - Chemistry, Metallurgy

07

F

400/7048, 260/44

C07F 7/10 (2006.01) C07F 7/18 (2006.01) C08G 77/50 (2006.01)

Patent

CA 1307284

SILANE COUPLING AGENTS ABSTRACT A novel organosilane coupling agent is disclosed and its use as an adhesion promoter in mineral-filled unsaturated polymer systems is described. Additionally, use of the organosilane as a primer for various substrates is presented. The coupling agent comprises the reaction product of an isocyanatoalkyl ester of acrylic or methacrylic acid with an aminoorganosilane. The organosilane so formed links the acryloxyalkyl or methacryloxyalkyl functionality to an alkylene, or aminoalkylene, group on the silicon atom through a urea group. Use of the organosilane as a coupling agent in a mineral-filled unsaturated polymer results in superior resistance to moisture, particularly when the polymer is selected from the group of corrosion resistant unsaturated polyesters.

520145

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