C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 77/06 (2006.01) C08K 5/17 (2006.01) C08K 5/20 (2006.01) C08K 5/21 (2006.01) C08L 75/02 (2006.01) C09K 8/32 (2006.01)
Patent
CA 2703318
A composition is comprised of a mixture of the reaction product of an amine and a poly-functional isocyanate, and the reaction product of (i) a carboxylic acid with at least two carboxylic moieties; (ii) a polyamine having an amine functionality of two or more; and a chemical selected from the group consisting of (i) alkoxylated alkyl amines, (ii) fatty acid amides and (iii) mixtures thereof, and it is used as a drilling fluid additive.
L'invention porte sur une composition qui se compose d'un mélange du produit de réaction d'une amine et d'un isocyanate polyfonctionnel et du produit de réaction de (i) un acide carboxylique avec aux moins deux fractions carboxyliques ; (ii) une polyamine ayant une fonctionnalité amine de 2 ou plus ; et un produit chimique choisi dans le groupe constitué par (i) les alkylamines alcoxylées, (ii) les amides d'acides gras et (iii) leurs mélanges, ladite composition étant utilisée comme additif pour fluide de forage.
Dino David
Geurtsen Richard
Thompson Jeffrey
Elementis Specialties Inc.
Sim & Mcburney
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