Synthesis and use of trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers

Patent metadata

Field	Value
Publication number	US-11033027-B2
Application number	US-201816109001-A
Country	US
Kind code	B2
Filing date	Aug 22, 2018
Priority date	Nov 29, 2012
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

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/m2, 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.

First claim

What is claimed is:

1. A method of preparing a polymer composition, comprising providing a first polymer comprising polyethylene and adding to said first polymer trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer as a polymer processing additive/aid.

2. The method of claim 1 wherein said preparing step comprises extruding said polymer composition.

3. The method of claim 1 wherein said trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer is present in the polymer composition in an amount of about 0.1% on the basis of mass of the polymer composition.

4. The method of claim 2 wherein said extruding step comprises extruding said polymer composition at a shear rate of about 300 s −1 .

5. The method of claim 1 wherein said processing aid consists essentially of trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer.

6. The method of claim 1 wherein said processing aid consists of trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer.

7. The method of claim 1 wherein the ratio of 1,3,3,3-tetrafluoropropene monomer units to vinylidene fluoride monomer units in the trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer is from about 90:10 mol % to about 10:90 mol %.

8. The method of claim 1 wherein said trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer has from about 30 mol % to about 50 mol % trans-1,3,3,3-tetrafluoropropene units and from about 50 mol % to about 70 mol % vinylidene fluoride units.

9. The method of claim 8 wherein said trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer has a weight average molecular weight of more than 100,000 Daltons.

10. The method of claim 9 wherein said trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer has a surface energy of between about 20 and about 30 mJ/m 2 .

11. The method of claim 1 wherein said trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer has a weight average molecular weight of more than 100,000 Daltons.

12. A method of preparing a polymer composition, comprising providing a first polymer and adding to said first polymer trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride/perfluoromethylvinyl ether terpolymer as a polymer processing additive/aid.

13. The method of claim 12 wherein said first polymer comprises polyethylene.

14. The method of claim 13 wherein said polyethylene comprises linear low density polyethylene.

15. A method of preparing a polymer composition, comprising providing a first polymer and adding to said first polymer a processing additive/aid that consists essentially of trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer.

16. The method of claim 1 wherein said first polymer comprises linear low density polyethylene.

17. The method of claim 15 wherein said trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer has from about 30 mol % to about 50 mol % trans-1,3,3,3-tetrafluoropropene units and from about 50 mol % to about 70 mol % vinylidene fluoride units.

18. The method of claim 17 wherein said trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer has a weight average molecular weight of more than 100,000 Daltons.

19. The method of claim 18 wherein said trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer has a surface energy of between about 20 and about 30 mJ/m 2 .

20. The method of claim 1 wherein said processing aid consists essentially of trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer.

Assignees

• Honeywell Int Inc

Inventors

• Lu Changqing
• Poss Andrew J
• Singh Rajiv R
• Nalewajek David
• Cantion Cheryl

Classifications

• C09D5/1668

  Vinyl-type polymers · CPC title

• C08F214/222

  with fluorinated vinyl ethers · CPC title

• C08L23/0815

  with aliphatic 1-olefins containing one carbon-to-carbon double bond · CPC title

• C09D127/16

  Homopolymers or copolymers of vinylidene fluoride · CPC title

• A01N29/02 Primary

  Acyclic compounds or compounds containing halogen attached to an aliphatic side-chain of a cycloaliphatic ring system · CPC title