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:
PROBLEM TO BE SOLVED: To provide particles with attached stable free radicals, which can be used in various requirements.SOLUTION: This invention relates to a modified particle which includes a particle having an attached group having the formula, wherein: A is an aromatic group or an alkyl group, which may include at least one functional group; M is a metal or a metal-containing group; and X is a polymer formed from at least one polymerizable vinyl or diene-containing monomer.
Abstract:
A modified particle is disclosed wherein a particle has an attached group having formula (I), wherein A represents an aromatic group or an alkyl group; R represents a bond, an arylene group, an alkylene group (i), (ii) or (iii), wherein R is an alkyl or alkylene group or an aryl or arylene group; R and R , which can be the same or different, represent hydrogen, an alkyl group, an aryl group, -OR , -NHR , -NR R , or -SR , wherein R , which is the same or different, represents an alkyl group or an aryl group; and SFR represents a stable free radical. Also disclosed is a modified particle or aggregate having attached a group having formula (II), wherein CoupA represents an Si-containing group, a Ti-containing group, a Cr-containing group or a Zr-containing group; R and R , which can be the same or different, represent hydrogen, an alkyl group, an aryl group, OR , -NHR , -NR R , or -SR , wherein R represents an alkyl group or an aryl group; SFR represents a stable free radical; and n is an integer of from 1 to 3. A modified particle having an attached -SFR or -X-SFR is additionally disclosed. Also, modified particles with attached polymers are disclosed as well as methods of making the modified particles.
Abstract:
Various modified particles are described which can be used in polymerizations to attach one or more polymers onto modified particles. Also described are the resulting modified particles having attached monomer or polymer groups as well as methods of preparing such modified particles. The polymer groups on the modified particles can be terminated and these various modified particles with attached groups can be used in a variety of end uses.
Abstract:
A modified particle or aggregate is disclosed wherein a particle has an attached group having the formula: wherein the substituents are defined in the disclosure. Modified particles with attached polymers are also disclosed as well as methods of making the modified products.
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.
Abstract:
A modified particle or aggregate is disclosed wherein a particle has an attached group having the formula: wherein the substituents are defined in the disclosure. Modified particles with attached polymers are also disclosed as well as methods of making the modified products.
Abstract:
A modified particle or aggregate is disclosed wherein a particle has an attached group having the formula: wherein the substituents are defined in the disclosure. Modified particles with attached polymers are also disclosed as well as methods of making the modified products.