Oil agent composition for acrylic precursor fibers for carbon fibers, acrylic precursor fiber bundle for carbon fibers, and method for producing the same

Patent metadata

Field	Value
Publication number	US-8932711-B2
Application number	US-74176308-A
Country	US
Kind code	B2
Filing date	Nov 4, 2008
Priority date	Nov 7, 2007
Publication date	Jan 13, 2015
Grant date	Jan 13, 2015

Abstract

An object of the present invention is to provide an oil agent composition which can improve the reduction in operability occurring when an oil agent composition containing a silicone compound is used as the main component and the reduction in the physical properties of the carbon fiber bundle occurring when a non-silicone-based oil agent composition is used. The oil agent composition for acrylic precursor fibers for carbon fibers of the present invention contains 1 to 10 wt % of a modified polydimethylsiloxane including a unit having a specific alkyl chain, at least one unit selected from the group consisting of a unit having a specific polyethylene oxide chain, a unit having a specific polyglycerin chain, and a unit having a specific polyether chain, and optionally a unit having a specific polydimethylsiloxyalkyl chain.

First claim

The invention claimed is:

1. A composition comprising 1 to 10 wt % of a modified polydimethylsiloxane, 30 to 70 wt % of an aromatic ester, 10 to 50 wt % of an amino-modified silicone, and 10 to 40 wt % of a nonionic emulsifier, wherein said modified polydimethylsiloxane comprises:
units represented by each of the formulas (1), (3) and (5) below in an amount of 1 to 20 and has a kinematic viscosity at 25° C. of 3000 to 5000 mm 2 /s; or
units represented by each of the formulas (1) and (4) below in an amount of 1 to 20 and has a kinematic viscosity at 25° C. of 500 to 1500 mm 2 /s:

wherein x is 7 to 15,

wherein mb is 0 to 3; and yb is 1 to 5,

wherein yc +yd is 5 to 15; ethylene oxide and propylene oxide each is a block copolymer or a random copolymer; and mc is 0 to 3,

wherein n is 1 to 5; and z is 3 to 60.

2. The composition according to claim 1 , wherein the modified polydimethylsiloxane comprises units represented by each of the formulas (1), (3) and (5) in an amount of 1 to 20 and has a kinematic viscosity at 25° C. of 3000 to 5000 mm 2 /s.

3. The composition according to claim 2 , comprising 3 to 5 wt % of said modified polydimethylsiloxane, 30 to 40 wt % of said aromatic ester, 30 to 40 wt % of said amino-modified silicone, and 10 to 20 wt % of said nonionic emulsifier.

4. An acrylic precursor fiber bundle having, thereon, the composition according to claim 3 in an amount of 0.1 to 2.0 wt % based on the mass of dry fiber.

5. The composition according to claim 1 , wherein the modified polydimethylsiloxane comprises units represented by each of the formulas (1) and (4) in an amount of 1 to 20 and has a kinematic viscosity at 25° C. of 500 to 1500 mm2/s.

6. The composition according to claim 5 , comprising 3 to 5 wt % of said modified polydimethylsiloxane, 30 to 40 wt % of said aromatic ester, 30 to 40 wt % of said amino-modified silicone, and 10 to 20 wt % of said nonionic emulsifier.

7. An acrylic precursor fiber bundle having, thereon, the composition according to claim 6 in an amount of 0.1 to 2.0 wt % based on the mass of dry fiber.

8. The composition according to claim 1 , comprising 30 to 40 wt % of an aromatic ester and 30 to 40 wt % of an amino-modified silicone.

9. The composition according to claim 1 , comprising 10 to 20 wt % of a nonionic emulsifier.

10. An oil agent prepared by dispersing the composition according to claim 1 in water.

11. An acrylic precursor fiber bundle having, thereon, an oil agent according to claim 10 in an amount of 0.1 to 2.0 wt % based on the mass of dry fiber.

12. An acrylic precursor fiber bundle having, thereon, the composition according to claim 1 in an amount of 0.1 to 2.0 wt % based on the mass of dry fiber.

13. The composition according to clam 1, wherein said composition is located on an acrylic precursor fiber.

14. The composition according to claim 1 , comprising 3 to 5 wt % of said modified polydimethylsiloxane, 30 to 40 wt % of said aromatic ester, 30 to 40 wt % of said amino-modified silicone, and 10 to 20 wt % of said nonionic emulsifier.

15. An acrylic precursor fiber bundle having, thereon, the composition according to claim 14 in an amount of 0.1 to 2.0 wt % based on the mass of dry fiber.

16. A composition comprising 1 to 10 wt % of a modified polydimethylsiloxane, 30 to 70 wt % of an aromatic ester, 10 to 50 wt % of an amino-modified silicone, and 10 to 40 wt % of a nonionic emulsifier, wherein the modified polydimethylsiloxane comprises units represented by each of formulas (1), (2) and (5) below in an amount of one or more and has a kinematic viscosity at 25° C. of 500 to 1000 mm 2 /s:

wherein x is 7 to 15,

wherein ma is 0; and ya is 1 to 15,

wherein n is 1 to 5; and z is 3 to 60.

17. The composition according to claim 16 , comprising 3 to 5 wt % of said modified polydimethylsiloxane, 30 to 40 wt % of said aromatic ester, 30 to 40 wt % of said amino-modified silicone, and 10 to 20 wt % of said nonionic emulsifier.

18. An acrylic precursor fiber bundle having, thereon, the composition according to claim 17 in an amount of 0.1 to 2.0 wt % based on the mass of dry fiber.

Assignees

• Aso Hiromi
• Sugiura Naoki
• Mitsubishi Rayon Co

Inventors

• Aso Hiromi
• Sugiura Naoki

Classifications

• C10M2229/052

  containing nitrogen · CPC title

• C10N2030/24

  Emulsion properties · CPC title

• D06M7/00

  Treating fibres, threads, yarns, fabrics, or fibrous goods made of other substances with subsequent freeing of the treated goods from the treating medium, e.g. swelling, e.g. polyolefins (D06M10/00 takes precedence; treating fibres or filaments made of glass, mineral -, or slag wool C03C; carbon fibres D01F11/10) · CPC title

• C10M2209/103

  Polyethers, i.e. containing di- or higher polyoxyalkylene groups · CPC title

• Y10T428/2929

  Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type] · CPC title