Abstract:
A variety of methods to prepare a polymer composition containing at least one polymer and at least one modified pigment are described. The methods, in part, involve introducing a slurry containing at least one modified pigment into an emulsion or solution polymer prior to dewatering. Other polymer systems can be used including aqueous based polymerizations and solvent-based polymerizations, which can include free radical polymerizations. Other methods involve the formation of a modified pigment in the presence of an emulsion or solution polymer and then recovering the polymer composition containing the modified pigment. Compositions containing at least one modified pigment and the emulsion or solution polymer are also described as well as uses for the polymer compositions of the present invention.
Abstract:
PROBLEM TO BE SOLVED: To provide an improved process for incorporating modified pigments into polymer compositions.SOLUTION: A method of preparing a polymer composition containing at least one polymer and at least one modified pigment involves introducing at least one slurry containing at least one modified pigment into an aqueous polymer solution to form a mixture, wherein, at this stage, the aqueous polymer solution has not been dewatered, and then dewatering the mixture to form the polymer composition.
Abstract:
Un método de preparación de una composición polimérica que comprende al menos un polímero y al menos un pigmento modificado que tiene unido al menos un grupo orgánico, en el que dicho método comprende introducir al menos una suspensión que contiene al menos un pigmento modificado que tiene unido al menos un grupo orgánico a una solución polimérica basada en agua para formar mezclas; en el que dicha solución polimérica basada en agua no se ha deshidratado; y deshidratar dicha mezcla para formar la composición polimérica.