COPOLYMERS HAVING A GRADIENT STRUCTURE
First Claim
1. A copolymer having a polymer backbone and side chains bonded thereto, and comprising at least one ionizable monomer unit M1 and at least one side chain-bearing monomer unit M2, the copolymer having:
- at least one section A having a gradient structure in a direction along the polymer backbone with regard to the ionizable monomer unit M1 and/or with regard to the side chain-bearing monomer unit M2, andat least one section B having an essentially constant local concentration of monomers and/or a random distribution of monomers, wherein the at least one section B comprises ionizable monomer units M1 and/or side chain-bearing monomer units M2,wherein a ratio of the number of monomer units in the at least one section A to the number of monomer units in the at least one section B is in the range of 80;
20 to 20;
80.
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Accused Products
Abstract
The present invention relates to a copolymer, especially for use as a dispersant for solid particles, in particular for use as dispersant for mineral binder compositions, having a polymer backbone and side chains bonded thereto, comprising at least one ionizable monomer unit M1 and at least one side chain-bearing monomer unit M2, wherein the copolymer has a gradient structure in at least one section A in a direction along the polymer backbone with regard to the ionizable monomer unit M1 and/or with regard to the side chain-bearing monomer unit M2.
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Citations
22 Claims
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1. A copolymer having a polymer backbone and side chains bonded thereto, and comprising at least one ionizable monomer unit M1 and at least one side chain-bearing monomer unit M2, the copolymer having:
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at least one section A having a gradient structure in a direction along the polymer backbone with regard to the ionizable monomer unit M1 and/or with regard to the side chain-bearing monomer unit M2, and at least one section B having an essentially constant local concentration of monomers and/or a random distribution of monomers, wherein the at least one section B comprises ionizable monomer units M1 and/or side chain-bearing monomer units M2, wherein a ratio of the number of monomer units in the at least one section A to the number of monomer units in the at least one section B is in the range of 80;
20 to 20;
80. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification