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US 12,742,094 B2Granted
Silicone chain-containing polymer and coating composition containing said polymer
AssigneeDIC Corporation
InventorsMasaki Hatase, Ryohei Shimizu, Junpei Ueno, Hideya Suzuki
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Abstract
Provided is a polymer functioning as a leveling agent that imparts high smoothness to a coating film without causing a defect on the surface of the coating film. Specifically, a silicone chain-containing polymer having a silicone chain on one terminal, in which the silicone chain has a number average molecular weight in a range of 2000 to 20000, and a polymerizable unsaturated group is not contained.
Claims4
A coating composition containing a silicone chain-containing polymer,
- wherein the silicone chain-containing polymer is a polymer that has a single silicone chain only on one terminal and does not contain a polymerizable unsaturated group, and contains one or more types of polymerizable monomers (2) selected from the group consisting of a compound represented by Formula (2-1) described below, a compound represented by Formula (2-2) described below, a compound represented by Formula (2-3) described below, and a compound represented by Formula (2-4) described below as a polymeric component,
- the silicone chain has a number average molecular weight in a range of 2000 to 20000, and wherein the single silicone chain is the only silicone chain in the silicone chain-containing polymer,
- and
- wherein the content of the silicone chain-containing polymer is 0.0001 to 10 parts by mass, with respect to 100 parts by mass of the solid content of the coating composition,
- in Formulae (2-1), (2-2), (2-3), and (2-4) described above,
- R21 is a hydrogen atom or a methyl group,
- R22 is an alkyl group having 1 to 18 carbon atoms,
- R23 is a hydrogen atom or a methyl group,
- R24 is a hydrogen atom or an alkyl group having 1 to 18 carbon atoms,
- R25 is a hydrogen atom or a methyl group,
- R26 is an alkyl group having 1 to 18 carbon atoms, or an alkyl group having an ether bond having 1 to 18 carbon atoms,
- R27 is a hydrogen atom or a methyl group,
- R28 is an alkyl group having 1 to 18 carbon atoms, or an alkyl group having an ether bond having 1 to 18 carbon atoms,
- L2 is a divalent organic group, and
- n is an integer in a range of 3 to 4, m is an integer in a range of 1 to 200, p is an integer in a range of 1 to 10, and q is an integer in a range of 1 to 100.
12 more elements
Dependencies are inferred from the claim text.