Fluorine-containing polymer composition

Patent metadata

Field	Value
Publication number	US-9982079-B2
Application number	US-201615238889-A
Country	US
Kind code	B2
Filing date	Aug 17, 2016
Priority date	Dec 16, 2011
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

Described herein is polymer melt additive composition for use as a processing aid in the extrusion of a non-fluorinated polymer, the polymer melt additive composition comprising a fluorine-containing polymer derived from the polymerization of a monomer and a sulfinate-containing molecule, wherein the sulfinate-containing molecule is selected from the group consisting of:

(a) CX 1 X 3 ═CX 2 —(R) p —CZ 1 Z 2 —SO 2 M  Formula (I)
(b)

 and
(c) combinations thereof,

wherein X 1 , X 2 , and X 3 are each independently selected from H, F, Cl, a C 1 to C 4 alkyl group, and a C 1 to C 4 fluorinated alkyl group; R is a linking group; Z 1 and Z 2 are independently selected from F, CF 3 , and a perfluoroalkyl group; R 1 and R 2 are end-groups; p is 0 or 1; m is at least 2; and M is a cation.

First claim

What is claimed is:

1. A polymer melt additive composition for use as a processing aid in the extrusion of a non-fluorinated polymer, the polymer melt additive composition comprising a fluorine-containing polymer derived from the polymerization of a monomer and a sulfinate-containing molecule, wherein the sulfinate-containing molecule is selected from the group consisting of:
(a) CX 1 X 3 ═CX 2 —(R) p —CZ 1 Z 2 —SO 2 M  Formula (I)

(c) combinations thereof,

wherein X 1 , X 2 , and X 3 are each independently selected from H, F, Cl, a C 1 to C 4 alkyl group, and a C 1 to C 4 fluorinated alkyl group; R is a linking group; Z 1 and Z 2 are independently selected from F, CF 3 , and a perfluoroalkyl group; R 1 and R 2 are end-groups; p is 0 or 1; m is at least 2; and M is a cation.

2. The polymer melt additive composition of claim 1 , wherein the polymer melt additive composition when extruded with a non-fluorinated polymer, eliminates melt fracture in the non-fluorinated polymer at lower amounts than a comparative polymer melt additive composition derived from the fluorine-containing polymer that does not consist of the one or more modifiers.

3. The polymer melt additive composition of claim 1 , wherein the sulfinate-containing molecule of Formula (I) is selected from: CF 2 ═CF—O(CF 2 ) n —SO 2 M; CH 2 ═CH—(CF 2 ) n —SO 2 M; CF 2 ═CF—O [CF 2 CF(CF 3 )O] n (CF 2 ) o —SO 2 M; and combinations thereof, where n is at least 1, o is at least 1, and M is a cation.

4. The polymer melt additive composition of claim 1 , wherein the sulfinate-containing molecule of Formula (II) comprises a segment selected from the group consisting of:

and combinations thereof, where n is at least 1, o is at least 1, and m is at least 1.

5. The polymer melt additive composition of claim 1 , wherein the monomer is selected from: dienes, halogenated alkenes, a fluoroalkyl substituted ethylene, allyl iodide, fluorinated alkyl vinyl ethers, fluorinated alkoxy vinyl ethers, olefins, acrylates, styrene, vinyl ethers, and combinations thereof.

6. The polymer melt additive composition of claim 1 , wherein the monomer is selected from: tetrafluoroethylene, hexafluoropropylene, trifluoroethylene, vinylidene fluoride, vinyl fluoride, bromotrifluoroethylene, chlorotrifluoroethylene, CF 3 CH═CF 2 , C 4 F 9 CH═CH 2 , CF 2 ═CHBr, CH 2 ═CHCH 2 Br, CF 2 ═CFCF 2 Br, CH 2 ═CHCF 2 CF 2 Br, and combinations thereof.

7. The polymer melt additive composition of claim 1 , wherein the fluorine-containing polymer is crystalline.

8. The polymer melt additive composition of claim 1 , wherein the fluorine-containing polymer is semi-crystalline, or amorphous.

9. The polymer melt additive composition of claim 1 , wherein the fluorine-containing polymer is partially fluorinated.

10. The polymer melt additive composition of claim 1 , wherein the fluorine-containing polymer is fully fluorinated.

11. The polymer melt additive composition of claim 1 , further comprising a synergist.

12. The polymer melt additive composition of claim 11 , wherein the synergist is polyethylene glycol or polycaprolactone.

13. The polymer melt additive composition of claim 1 , wherein the dienes comprise CH 2 ═CHR f CH═CH 2 , wherein R f is a perfluorinated alkylene group which comprises 2-12 carbon atoms.

Assignees

• 3M Innovative Properties Co

Inventors

• LAVALLéE CLAUDE
• Dahlke Gregg D
• Duchesne Denis
• Fukushi Tatsuo
• Grootaert Werner M A
• Guerra Miguel A
• Qiu Zai-Ming

Classifications

• C08F214/28

  Hexyfluoropropene · CPC title

• C08L27/16

  Homopolymers or copolymers or vinylidene fluoride · CPC title

• C08L2205/03

  containing three or more polymers in a blend · CPC title

• C08L2205/06

  having improved processability or containing aids for moulding methods · CPC title

• C08L23/06

  Polyethylene · CPC title