08-04-2021 дата публикации
Номер: US20210102020A1
Provided are a fluorine-free soil resistant agent and a soil resistant treatment method which give excellent water-repellency and excellent antifouling property to a substrate, especially a carpet. The soil resistant agent contains () a fluorine-free copolymer having (a) a repeating unit formed from an acrylic monomer having a hydrocarbon group containing 7 to 40 carbon atoms, and (b) a repeating unit formed from an acrylic monomer having a hydrophilic group, and (2) water or a mixture of water and an organic solvent dispersing the fluorine-free copolymer (1). A method of treating the substrate, includes applying the soil resistant agent to the substrate. 1. A method of treating a substrate , comprising applying a soil resistant agent to the substrate ,wherein the soil resistant agent comprises: (a) a repeating unit formed from an acrylic monomer having a hydrocarbon group containing 7 to 40 carbon atoms, and', '(b) a repeating unit formed from acrylic monomer having a hydrophilic group, and, '(1) a fluorine-free copolymer comprising(2) water or a mixture of water and an organic solvent dispersing the fluorine-free copolymer (1).3. The method according to claim 1 , wherein the hydrocarbon group-containing acrylic monomer (a) is: {'br': None, 'sub': '2', 'sup': 4', '2', '2, 'CH═C(—X)—C(═O)—Y—R'}, '(a1) an acrylic monomer represented by the formula{'sup': '2', 'claim-text': [{'sup': '4', 'Xis a hydrogen atom, a monovalent organic group or a halogen atom excluding a fluorine atom, and'}, {'sup': '2', 'Yis —O— or —NH—, and/or'}], 'wherein Ris a hydrocarbon group having 7 to 40 carbon atoms,'} {'br': None, 'sub': 2', 'n, 'sup': 5', '3', '4', '3, 'CH═C(—X)—C(═O)—Y—Z(—Y—R)'}, '(a2) an acrylic monomer represented by the formula{'sup': '3', 'claim-text': [{'sup': '5', 'Xis a hydrogen atom, a monovalent organic group or a halogen atom excluding a fluorine atom,'}, {'sup': '3', 'Yis —O— or —NH—,'}, {'sup': '4', 'sub': '2', 'Yeach is independently a direct bond, or a group ...
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