Synthesis and use of trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers
US-9532567-B2 · Jan 3, 2017 · US
US2016362511A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016362511-A1 |
| Application number | US-201615246297-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 24, 2016 |
| Priority date | Nov 29, 2012 |
| Publication date | Dec 15, 2016 |
| Grant date | — |
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A copolymer comprising trans-1,3,3,3-tetrafluoropropene units and vinylidene fluoride units, and methods of making the same. A method of preventing biofouling on an article of manufacture, comprising applying such copolymer to the article of manufacture. A process of preparing a surface having a surface energy of between about 20 and about 30 mJ/m 2 , comprising applying such a copolymer to a support. A method of preventing accumulation of ice on an article of manufacture, comprising applying such a copolymer to an article of manufacture. A method of preparing a polymer, comprising a step of adding trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer as a polymer processing additive/aid to said polymer.
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What is claimed is: 1 . A process of synthesizing copolymers comprising trans-1,3,3,3-tetrafluoropropene units and vinylidene fluoride units, comprising reacting trans-1,3,3,3-tetrafluoropropene monomers and vinylidene fluoride monomers in a reaction medium. 2 . The process of claim 1 , wherein said trans-1,3,3,3-tetrafluoropropene monomers and vinylidene fluoride monomers are polymerized by aqueous emulsion polymerization. 3 . The process of claim 2 , wherein the copolymers have a weight average molecular weight of more than 100,000 Daltons. 4 . The process of claim 2 , wherein the copolymers have a weight average molecular weight of more than 400,000 Daltons. 5 . The process of claim 4 , wherein the trans-1,3,3,3-tetrafluoropropene monomers and vinylidene fluoride monomers are additionally reacted with perfluoromethylvinyl ether monomers and wherein the copolymers additionally comprise perfluoromethylvinyl ether units. 6 . A copolymer comprising trans-1,3,3,3-tetrafluoropropene units and vinylidene fluoride units. 7 . The copolymer of claim 6 , having a weight average molecular weight of more than 100,000 Daltons. 8 . The copolymer of claim 6 , having a weight average molecular weight of more than 400,000 Daltons. 9 . The copolymer of claim 8 , additionally comprising perfluoromethylvinyl ether units. 10 . The copolymer of claim 6 , having a surface energy of between about 20 and about 30 mJ/m 2 . 11 . The copolymer as in one of claim 10 , consisting essentially of trans-1,3,3,3-tetrafluoropropene units and vinylidene fluoride units. 12 . A method of preventing biofouling on an article of manufacture, comprising applying the copolymer of claim 9 to the article of manufacture. 13 . A method of preventing biofouling on an article of manufacture, comprising applying the copolymer of claim 10 to the article of manufacture. 14 . A process of preparing a surface having a surface energy of between about 20 and about 30 mJ/m 2 , comprising applying the copolymer of claim 9 to a support. 15 . A process of preparing a surface having a surface energy of between about 20 and about 30 mJ/m 2 , comprising applying the copolymer of claim 10 to a support. 16 . A method of preventing accumulation of ice on an article of manufacture, comprising applying the copolymer of claim 9 to the article of manufacture. 17 . A method of preventing accumulation of ice on an article of manufacture, comprising applying the copolymer of claim 10 to the article of manufacture. 18 . A method of preparing a polymer, comprising a step of adding trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer as a polymer processing additive/aid to said polymer.
Homopolymers or copolymers of vinylidene fluoride · CPC title
Vinylidene fluoride · CPC title
Vinyl-type polymers · CPC title
with fluorinated vinyl ethers · CPC title
Antifouling paints; Underwater paints · CPC title
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