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US4098756A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluoropolymer primer compositions

Assignee: Solvay Solexis Inc
•
Filing: 1976-07-12
•
Granted: 1978-07-04
•
Expires: 1996-07-12
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Abstract

Abstract This invention relates to a composition comprising a copolymer of ethylene and a halogenated comonomer selected from the group consisting of tetrafluoroethylene, chlorotrifluoroethylene and mixtures thereof and 0 to 10 mol percent of an additional monomer selected from the group consisting of 3,3,3-trifluoro-2-trifluoromethyl propene, a vinyl monomer which is free of telogenic activity and which provides a side chain having at least two carbon atoms, said side chain being aromatic or having its elements bonded together by a single bond only, or mixtures thereof, and containing from about 5 to 60 percent by weight of the total composition of an epoxy resin and from about 1 to 25 percent by weight of the total composition of an oxide of cobalt, nickel, manganese, tungsten or mixtures thereof. Such compositions are particularly useful as a primer coating for substrates such as metals in conjunction with an overlying layer of such copolymers. Coated articles are provided which comprise a substrate, a primer coating fused thereon and comprising such composition and an outer coating of similar copolymers fused to the primer coating.

Inventors

  • 👤 William Albert Miller
  • 👤 John Paul Opsasnick
  • 👤 William Anthony Miller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 14:22
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L27/00; C08L27/02; C08L27/12; C09D123/00; C09D123/02; C09D123/04; C09D123/08; C09D127/18; D; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/48; D06M15/00; D06M15/19; D06M15/21; D06M15/244; D06M15/256; C08L63/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 128 words
A composition in powder form suitable for use as a primer coating comprising a copolymer of ethylene, a halogenated comonomer selected from the group consisting of tetrafluoroethylene, chlorotrifluoroethylene and mixtures thereof and 0 to 10 mol percent of an additional monomer selected from the group consisting of 3,3,3-trifluoro-2-trifluoromethyl propene, a vinyl monomer which is free of telogenic activity and which provides a side chain having at least two carbon atoms, said side chain being aromatic or having its elements bonded together by a single bond only, or mixtures thereof, and containing from about 5 to 60 percent by weight of the composition of an epoxy resin and about 1 to 25 percent by weight of the composition of an oxide of cobalt, nickel, manganese, tungsten and mixtures thereof.
Claim 2
Dependent Claim 128 words
A composition in powder form suitable for use as a primer coating comprising a copolymer of ethylene, a halogenated comonomer selected from the group consisting of tetrafluoroethylene, chlorotrifluoroethylene and mixtures thereof and 0 to 10 mol percent of an additional monomer selected from the group consisting of 3,3,3-trifluoro-2-trifluoromethyl propene, a vinyl monomer which is free of telogenic activity and which provides a side chain having at least two carbon atoms, said side chain being aromatic or having its elements bonded together by a single bond only, or mixtures thereof, and containing from about 5 to 60 percent by weight of the composition of an epoxy resin and about 1 to 25 percent by weight of the composition of an oxide of cobalt, nickel, manganese, tungsten and mixtures thereof.
Claim 3
Dependent Claim 33 words
A composition in accordance with claim 1 wherein said copolymers comprise from about 40 to 60 mol percent ethylene and correspondingly from about 60 to about 40 mol percent of said halogenated comonomer.
Claim 4
Dependent Claim 13 words
A composition in accordance with claim 2 wherein said halogenated comonomer is chlorotrifluoroethylene.
Claim 5
Dependent Claim 22 words
A composition in accordance with claim 3 wherein said copolymer comprises from about 0.1 to about 10 mol percent of 3,3,3-trifluoro-2-trifluoromethyl propene.
Claim 6
Dependent Claim 21 words
A composition in accordance with claim 4 wherein said copolymer comprises about 0.5 to about 5 mol percent of 3,3,3-trifluoro-2-trifluoromethyl propene.
Claim 7
Dependent Claim 24 words
A composition in accordance with claim 2 wherein said epoxy resin is present in an amount of about 25 to 50 percent by weight.
Claim 8
Dependent Claim 13 words
A composition in accordance with claim 2 wherein said oxide is cobalt oxide.
Claim 9
Dependent Claim 24 words
A composition in accordance with claim 7 wherein said cobalt oxide is present in an amount of about 5 to 15 percent by weight.
Claim 10
Dependent Claim 13 words
A composition in accordance with claim 2 wherein said halogenated comonomer is tetrafluoroethylene.
Claim 11
Dependent Claim 23 words
A composition in accordance with claim 1 wherein said copolymer comprises from about 0.1 to about 10 mol percent of said vinyl monomer.

References Cited (Backward Citations)

US2979418A Cited
US2961341A Cited
US3019206A Cited
US3624250A Cited
US3853690A Cited
US3847881A Cited
US3989873A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-07-03 1982-01-02 1982-07-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-07-03 1986-01-02 1986-07-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-07-03 1990-01-02 1990-07-04 $7700.00 Window Closed / Lapsed

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