Composition and coating film

Patent metadata

Field	Value
Publication number	US-12104070-B2
Application number	US-201917266427-A
Country	US
Kind code	B2
Filing date	Jul 17, 2019
Priority date	Aug 9, 2018
Publication date	Oct 1, 2024
Grant date	Oct 1, 2024

Abstract

The disclosure aims to provide a composition that is able to provide a film having excellent abrasion resistance and excellent antifouling properties. The composition contains a perfluorocarbon sulfonic acid resin or sulfonic acid salt resin thereof, a tetraalkoxysilane, and a trialkoxysilane.

First claim

The invention claimed is:

1. A composition comprising:
a perfluorocarbon sulfonic acid resin or sulfonic acid salt resin thereof;
a tetraalkoxysilane; and
a trialkoxysilane,
wherein the perfluorocarbon sulfonic acid resin comprises a copolymer containing a polymerized unit represented by —(CF 2 —CFZ)— (wherein Z is H, Cl, F, or a C1-C3 perfluoroalkyl group) and a polymerized unit represented by —(CF 2 —CF(—O—(CF 2 ) m —SO 3 H))— (wherein m is an integer of 1 to 12), and
the tetraalkoxysilane and the trialkoxysilane are present in a total amount of 100 parts by mass or more relative to 100 parts by mass of the perfluorocarbon sulfonic acid resin or sulfonic acid salt resin thereof.

2. The composition according to claim 1 ,
wherein the perfluorocarbon sulfonic acid resin has an equivalent weight of 600 to 1000.

3. The composition according to claim 1 ,
wherein the perfluorocarbon sulfonic acid resin or sulfonic acid salt resin thereof is a perfluorocarbon sulfonic acid salt resin.

4. The composition according to claim 1 , further comprising an acid catalyst.

5. The composition according to claim 1 , further comprising a solvent.

6. The composition according to claim 1 ,
wherein the composition is a surface-treating agent.

7. A film obtained from the composition according to claim 1 .

Assignees

• Daikin Ind Ltd

Inventors

• OHTSUKA Kazuhiro
• Tomita Masahiro

Classifications

• C09D5/00

  Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced {(electrically insulating plastics, resins or waxes H01B3/30)}; Filling pastes · CPC title

• C08K5/5419

  containing at least one Si—C bond · CPC title

• C09D7/63

  organic · CPC title

• C09K3/18

  for application to surfaces to minimize adherence of ice, mist or water thereto (rendering particulate materials free flowing, in general, e.g. making them hydrophobic B01J2/30); Thawing or antifreeze materials for application to surfaces (used in liquids for heat-transfer, heat-exchange or heat-storage or for the production of heat or cold other than by combustion, e.g. radiator liquids, C09K5/00) · CPC title

• C09D127/12 Primary

  containing fluorine atoms · CPC title