Thixotropic agent

Details Thixotropic agent Thixotropic agent

C - Chemistry, Metallurgy

09

D

C09D 5/04 (2006.01) C08G 18/10 (2006.01) C08G 18/28 (2006.01) C08G 18/48 (2006.01) C09D 175/04 (2006.01) C09J 175/04 (2006.01) C09K 3/10 (2006.01)

Patent

CA 2345874

New thixotropic agents for the use in cross-linking systems, in particular one-component adhesives and sealants, are described. The thixotropic agents have the advantage that on the one hand they cause only a minor or no increase in viscosity, and on the other hand they do not cause any blead out or migration, respectively. The thixotropic agents of the present invention are based on urea derivatives that usually are present in a concentration of 5 to 50 wt.-%, in particular of 15 to 30 wt.-%, in a preferably~ reactive carrier material. After the cross-linking of the system, the reactive carrier material is incorporated, preferably into the structure matrix, or interwoven with said structure matrix, respectively, such that it can not diffuse out of the cured material.

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