Additive composition and compositions and articles containing the same

Patent metadata

Field	Value
Publication number	US-9938402-B2
Application number	US-201314648199-A
Country	US
Kind code	B2
Filing date	Nov 18, 2013
Priority date	Nov 30, 2012
Publication date	Apr 10, 2018
Grant date	Apr 10, 2018

Abstract

An additive composition that includes fluoropolymer, synergist, and fatty acid metal salt.

First claim

What is claimed is:

1. A composition comprising:
a rubber comprising natural rubber, nitrile butadiene rubber (NBR), butadiene/styrene rubber, butadiene/acrylonitrile rubber, silicone rubber, or a combination thereof;
filler; and
an additive composition comprising:
a fluoropolymer;
a synergist, wherein the synergist comprises a poly(oxyalkylene) polymer, a polycaprolactone, or a combination thereof; and
a fatty acid metal salt,

wherein the amounts by weight of the fluoropolymer, the synergist, and the fatty acid metal salt range from 90-10%:90-10%:80-5%, respectively, based on the total weight of the additive composition.

2. The composition of claim 1 , wherein the composition comprises about 30 percent by weight of the filler.

3. The composition according to claim 1 , wherein the amounts by weight of the fluoropolymer, the synergist, and the fatty acid metal salt range from 60-40%:35-15%:35-15%, respectively, based on the total weight of the additive composition.

4. The composition according to claim 1 , wherein the amounts by weight of the fluoropolymer, the synergist, and the fatty acid metal salt are about 50%:25%:25%, respectively, based on the total weight of the additive composition.

5. The composition according to claim 1 , wherein the amounts by weight of the fluoropolymer, the synergist, and the fatty acid metal salt are about 25%:25%:50%, respectively, based on the total weight of the additive composition.

6. The composition according to claim 1 , wherein the amounts by weight of the fluoropolymer, the synergist, and the fatty acid metal salt are about 15%:15%:70%, respectively, based on the total weight of the additive composition.

7. The composition according to claim 1 , wherein the fluoropolymer was polymerized from vinylidene fluoride, hexafluoropropylene, chlorotrifluoroethylene, tetrafluoroethylene, perfluoroalkyl perfluorovinyl ethers, or combinations thereof.

8. The composition according to claim 1 , wherein the fluoropolymer is a copolymer of hexafluoropropylene and vinylidene fluoride.

9. The composition according to claim 1 , wherein the fatty acid metal salt comprises zinc (Zn), calcium (Ca), magnesium (Mg), aluminum (Al) or a combination thereof.

10. The composition according to claim 1 , wherein the fatty acid metal salt comprises a mixture of C8 to C26 fatty acids.

11. The composition according to claim 1 , wherein the rubber comprises at least one of NBR or natural rubber.

12. The composition according to claim 1 , wherein the composition comprises from about 0.1 to about 3% by weight of the additive composition.

13. The composition according to claim 1 , wherein the composition comprises from about 0.5% to about 2.5% by weight of the additive composition.

14. The composition according to claim 1 , wherein the composition comprises from about 30 wt % to about 60 wt % of the filler.

15. An article formed from the composition according to claim 12 .

16. The composition according to claim 1 , wherein the filler comprises carbon black.

17. The composition according to claim 16 , wherein the rubber comprises at least one of NBR or natural rubber.

18. The composition according to claim 17 , wherein the composition comprises from about 0.1 to about 3% by weight of the additive composition.

19. The composition according to claim 16 , wherein the composition comprises from about 0.1 to about 3% by weight of the additive composition.

Assignees

• 3M Innovative Properties Co

Inventors

• Byravan Arun
• Chidambaram Alagappan

Classifications

• C08L23/16 Primary

  Ethylene-propylene or ethylene-propylene-diene copolymers · CPC title

• C08J2323/16

  Ethene-propene or ethene-propene-diene copolymers · CPC title

• C08L27/16

  Homopolymers or copolymers or vinylidene fluoride · CPC title

• C08J2307/00

  Characterised by the use of natural rubber · CPC title

• C08J2309/00

  Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons · CPC title