Filler-containing polymer dispersion, method for its production and its use
First Claim
1. A filler-containing polymer dispersion comprising water, particles of at least one filler selected from the group consisting of organic fillers, inorganic fillers and mixtures thereof, at least one nonionic surfactant with an HLB value of from 13 to 20 and particles of at least one synthetic organic polymer, polymerized in the presence of at least one type of the filler particles, wherein the ratio of the particle size of the filler particles to the particle size of the polymer particles is in the range from 1.1:
- 1 to 20;
1.
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Accused Products
Abstract
A filler-containing an organic polymer dispersion is provided. The organic polymer of the dispersion is polymerized in the presence of particles of at least one filler. The ratio of the particle size of the filler particles to the particle size of the polymer particles is in the range of from 1.1:1 to 20:1.
84 Citations
17 Claims
- 1. A filler-containing polymer dispersion comprising water, particles of at least one filler selected from the group consisting of organic fillers, inorganic fillers and mixtures thereof, at least one nonionic surfactant with an HLB value of from 13 to 20 and particles of at least one synthetic organic polymer, polymerized in the presence of at least one type of the filler particles, wherein the ratio of the particle size of the filler particles to the particle size of the polymer particles is in the range from 1.1:
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6. The process for the production of a filler-containing polymer dispersion, in least two successive stages comprising:
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a) a first stage comprising prepare a dispersion containing;
1) at least one ionic surfactant with an HLB value of 1 to 10 or a nonionic surfactant with an HLB value of 13 to 20 or a mixture of two or more thereof, 2) at least one inorganic filler with a particle size (d50) of 0.01 to 0.5 μ
m,3) at least one polymerizable initiator;
4) at least one water-soluble organic polymer with a molecular weight of more than 600 and an HLB value of more than 15; and
5) heating the dispersion to a temperature of 70 to 90°
C.; and
b) a second stage comprising;
6) adding and polymerizing at least one radical-polymerizable monomer. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 15)
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Specification