Polymeric colored dispersants and colorant dispersions...

Details Polymeric colored dispersants and colorant dispersions... Polymeric colored dispersants and colorant dispersions...

C - Chemistry, Metallurgy

09

B

C09B 69/10 (2006.01) C09B 67/40 (2006.01)

Patent

CA 2548244

Polymeric colored dispersant having the structure A-(B-X)n, where A is an organic chromophore; B is a covalently bonded linking moiety; X is a branched or linear C50-C200 polymeric covalently linked hydrocarbon, and n is an integer from 1 to 4, and low viscosity colorant dispersions containing same having a relative interfacial tension drop of less than about 1.5.

Cette invention concerne un dispersant coloré polymère représenté par la structure A-(B-X)¿n? dans laquelle A désigne un chromophore organique; B désigne une fraction de liaison liée par covalence; X désigne un hydrocarbure polymère lié par covalence C¿50?-C¿200? linéaire ou ramifié; et n désigne un nombre entier compris entre 1 et 4. Cette invention concerne en outre des dispersions de colorant à faible viscosité contenant le dispersant susmentionné et présentant une baisse de tension interfaciale relative inférieure à environ 1,5.

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