Powder slurry composition containing particulate carbamate...

Details Powder slurry composition containing particulate carbamate... Powder slurry composition containing particulate carbamate...

C - Chemistry, Metallurgy

08

G

C08G 18/38 (2006.01) C09D 175/04 (2006.01) C09D 201/02 (2006.01) C09D 201/06 (2006.01)

Patent

CA 2345054

The invention provides a powder slurry composition having a particulate component (a) dispersed in a liquid component (b). Component (a) comprises a solid or particulate compound (i) comprising the reaction product of a polyisocyanate (A) and a compound (B). Polyisocyanate (A) is of the formula [R(NCO)y]x, where x = 1 or higher, y = 2 or higher, and R has Cn symmetry when n = 2 or higher. Compound (B) comprises both an isocyanate-reactive group and a functional group selected from the group consisting of a carbamate group and groups convertible to a carbamate group after reaction of compound (B) with polyisocyanate (A). One or both of component (a) and (b) comprise a crosslinking agent (ii) reactive with particulate compound (i).

L'invention concerne une composition de suspension pulvérulente comprenant un composant particulaire (a) dispersé dans un composant liquide (b). Le composant (a) comprend un composé solide ou particulaire (i) contenant un produit réactionnel d'un polyisocyanate (A) et d'un composé (B). Le polyisocyanate (A) est représenté par la formule [R(NCO)¿y?]¿x?, dans laquelle x = 1 ou plus, y = 2 ou plus, et R présente une symétrie C¿n?, lorsque n = 2 ou plus. Le composé (B) comprend à la fois un groupe réagissant avec l'isocyanate et un groupe fonctionnel choisis dans le groupe formé d'un groupe carbamate et de groupes convertibles en un groupe carbamate après la réaction du composé (B) avec le polyisocyanate (A). L'un des composants (a) et (b), ou les deux, comprend un agent de réticulation (ii) réagissant avec le composé particulaire (i).

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