IP Library › Granted Patent US 8,389,642
Granted Patent B2
US 8,389,642 · App. 12/874,530 · Granted Mar 5, 2013

Method of treating polymer with carbon-carbon bond framework and product obtained by the treating method

Inventors: Toshiharu Goto (Hitachi, JP); Masaaki Yoshida (Utsunomiya, JP); Ryosuke Kobayashi (Utsunomiya, JP)
Assignees: Hitachi Cable, Ltd.; Utsunomiya University
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Quick Facts
Patent No.
US 8,389,642
App. No.
12/874,530
Granted
Mar 5, 2013
Kind
B2
Abstract

A method of treating a polymer includes oxidatively treating the polymer including a carbon-carbon bond framework in a gas atmosphere at a pressure of not less than 5.0 MPa and at a temperature of higher than 140° C. and lower than 200° C. by using oxygen included in the gas atmosphere.

Claims (22)

1. A method of treating a polymer, comprising:

oxidatively treating the polymer comprising a carbon-carbon bond framework in a gas atmosphere at a pressure of not less than 5.0 MPa and at a temperature of higher than 140° C. and lower than 200° C. by using oxygen included in the gas atmosphere.

2. The method according to claim 1 , wherein the polymer is oxidatively treated at an oxygen concentration in the gas atmosphere of not less than 10 g/L.

3. A method of treating a polymer, comprising:

oxidatively treating the polymer comprising a carbon-carbon bond framework in a gas atmosphere at a pressure of not less than 5.0 MPa and at a temperature of not higher than 140° C. by using oxygen included in the gas atmosphere,

wherein the gas atmosphere comprises a decomposition accelerator.

4. The method according to claim 1 , wherein a carbon positioned at a branch point of a continuous carbon-carbon bond of the polymer is oxidized preferentially to a carbon other than the branch point carbon to break the carbon-carbon bond between the branch point carbon and a carbon positioned at a side of the branch.

5. The method according to claim 1 , wherein a tertiary carbon and a quaternary carbon of the polymer are oxidized preferentially to a carbon other than the tertiary carbon and the quaternary carbon.

6. The method according to claim 1 , wherein the polymer comprises a cross-linked polymer.

7. The method according to claim 6 , wherein the cross-linked polymer comprises a polymer cross-linked by peroxide cross-linking, electron beam cross-linking or silane-water cross-linking.

8. The method according to claim 1 , wherein the polymer is oxidatively treated for not more than 3 hours.

9. A product produced by the method according to claim 1 , comprising:

a hydrocarbon; and a carboxyl group in a portion of the hydrocarbon.

10. The method according to claim 3 , wherein a carbon positioned at a branch point of a continuous carbon-carbon bond of the polymer is oxidized preferentially to a carbon other than the branch point carbon to break the carbon-carbon bond between the branch point carbon and a carbon positioned at a side of the branch.

11. The method according to claim 3 , wherein a tertiary carbon and a quaternary carbon of the polymer are oxidized preferentially to a carbon other than the tertiary carbon and the quaternary carbon.

12. The method according to claim 3 , wherein the polymer comprises a cross-linked polymer.

13. The method according to claim 12 wherein the cross-linked polymer comprises a polymer cross-linked by peroxide cross-linking, electron beam cross-linking or silane-water cross-linking.

14. The method according to claim 3 , wherein the polymer is oxidatively treated for not more than 3 hours.

15. A product produced by the method according to claim 3 , comprising:

a hydrocarbon; and a carboxyl group in a portion of the hydrocarbon.

16. The method according to claim 1 , wherein the gas atmosphere further comprises carbon dioxide.

17. The method according to claim 3 , wherein the gas atmosphere further comprises carbon dioxide.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 2, 2010
From: GOTO, TOSHIHARU; YOSHIDA, MASAAKI; KOBAYASHI, RYOSUKE
To: HITACHI CABLE, LTD.; UTSUNOMIYA UNIVERSITY
Reel/Frame 024931/0108 →
Priority Claims (1)
JP 2010-002962 · Jan 8, 2010 · national
Continuity (1)
Related Publication 20110172371A1 · Jul 14, 2011