Aqueous dispersion of fluorocopolymer and composition for water-based coating material
AssigneeAsahi Glass Company, Limited
InventorsTeruo Takakura, Toru Ishida, Naomi Ichikuni
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Abstract
An aqueous dispersion of a fluorocopolymer, which is excellent in stability and film-forming properties as an aqueous dispersion and which gives a coating film excellent in weather resistance and mechanical strength and improved in water resistance and stain resistance. The aqueous dispersion comprises water and dispersed therein a fluorocopolymer which comprises (a) polymer units based on a fluoroolefin, (b) polymer units based on propylene, (c) polymer units based on ethylene and/or (d) polymer units based on butylene and which has a melting point within a range of from 40 to 150° C.
Claims44
An aqueous dispersion characterized in that a fluorocopolymer which is a copolymer comprising (a) polymer units based on a fluoroolefin, (b) polymer units based on propylene, and (c) polymer units based on ethylene and/or (d) polymer units based on butylene and which has a melting point within a range of from 40 to 150° C., is dispersed in water.
An aqueous dispersion characterized in that a fluorocopolymer which is a copolymer comprising (a) polymer units based on a fluoroolefin, (b) polymer units based on propylene, (c) polymer units based on ethylene and/or (d) polymer units based on butylene, and (e) polymer units based on at least one member selected from a vinyl ester, a vinyl ether, an isopropenyl ether and an allyl ether and which has a melting point within a range of from 40 to 150° C., is dispersed in water.
An aqueous dispersion characterized in that a fluorocopolymer which is a copolymer comprising (a) polymer units based on a fluoroolefin, (b) polymer units based on propylene, (c) polymer units based on ethylene and/or (d) polymer units based on butylene, and (f) polymer units based on a hydrophilic macro monomer represented by the general formula:
- X-Y-Z (wherein X is a radical polymerizable unsaturated group, Y is a hydrophobic bivalent connecting group, and Z is a hydrophilic group) and which has a melting point within a range of from 40 to 150° C., is dispersed in water.
An aqueous dispersion characterized in that a fluorocopolymer which is a copolymer comprising (a) polymer units based on a fluoroolefin, (b) polymer units based on propylene, (c) polymer units based on ethylene and/or (d) polymer units based on butylene, (e) polymer units of at least one member selected from a vinyl ester, a vinyl ether, an isopropenyl ether and an allyl ether, and (f) polymer units based on a hydrophilic macro monomer represented by the general formula:
- X-Y-Z wherein X is a radical polymerizable unsaturated group, Y is a hydrophobic bivalent connecting group, and Z is a hydrophilic group and which has a melting point within a range of from 40 to 150° C., is dispersed in water.
Dependencies are inferred from the claim text.