US4581412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating composition of vinylidene fluoride copolymer and acrylic polymer
Assignee: Daikin Industries Ltd
•
Filing: 1985-07-03
•
Granted: 1986-04-08
•
Expires: 2005-07-03
Abstract
Abstract A fluoro-resin coating composition curable at room temperature and capable of providing coatings having an improved transparency or gloss which can be maintained for a long term, as well as excellent weatherability, chemical and solvent resistances, stain resistance and adhesion to substrates, which comprises a fluorine-containing copolymer comprising vinylidene fluoride and a minor amount of a vinyl monomer having a functional group capable of causing crosslinking at room temperature in the presence of a curing agent having at least difunctionality, and an acrylic resin.
Inventors
- 👤 Akira Ohmori
- 👤 Nobuyuki Tomihashi
- 👤 Hiroshi Inukai
- 👤 Yoshiki Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:38
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C09D127/16; C07; C07C; C07C17/00; C07C17/26; C07C17/272; C07C17/275; C07C31/00; C07C31/34; C07C33/00; C07C33/40; C07C33/42; C07C33/423; C07C57/00; C07C57/52; C07C57/64; C07C57/66; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/16; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C08L33/00; C08L33/04; C08L33/06; C08L33/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
44 words
A coating composition comprising a fluorine-containing copolymer and an acrylic resin, said fluorine-containing copolymer comprising at least 50% by mole of vinylidene fluoride, and a vinyl monomer having a functional group selected from the group consisting of hydroxyl group carboxyl group and epoxy group.
Claim 2
Dependent Claim
44 words
A coating composition comprising a fluorine-containing copolymer and an acrylic resin, said fluorine-containing copolymer comprising at least 50% by mole of vinylidene fluoride, and a vinyl monomer having a functional group selected from the group consisting of hydroxyl group carboxyl group and epoxy group.
Claim 3
Dependent Claim
31 words
The composition of claim 1, wherein said copolymer comprises 50 to 99% by mole of vinylidene fluoride and 1 to 50% by mole of said vinyl monomer having a functional group.
Claim 4
Dependent Claim
43 words
The composition of claim 1, wherein said copolymer comprises 50 to 99% by mole of vinylidene fluoride 1 to 50% by mole of said vinyl monomer having a functional group and at most 30% by mole of a fluoroolefin other than vinylidene fluoride.
Claim 5
Dependent Claim
12 words
The composition of claim 3, wherein said fluoroolefin is tetrafluoroethylene or chlorotrifluoro-ethylene.
Claim 6
Dependent Claim
16 words
The composition of claim 1, wherein said acrylic resin is an alkyl acrylate or methacrylate polymer.
Claim 7
Dependent Claim
24 words
The composition of claim 1, wherein said fluorine-containing copolymer and said acrylic resin are present in a ratio of 5:95 to 90:10 by weight.
Claim 8
Dependent Claim
24 words
The composition of claim 1, wherein said fluorine-containing copolymer and said acrylic resin are present in a ratio of 20:80 to 80:20 by weight.
Claim 9
Dependent Claim
18 words
The composition of claim 1, wherein said acrylic resin contains at least 50% by weight of methyl methacrylate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |