Nanosubstance-Containing Composition, Process for Producing the Same, and Composite Made With the Same

• US 20080281014A1
• Filed: 09/09/2005
• Published: 11/13/2008
• Est. Priority Date: 09/09/2004
• Status: Abandoned Application

• Current Assignee: Mitsubishi Rayon Company Limited (Mitsubishi Chemical Holdings Corporation)
• Original Assignee: Mitsubishi Rayon Company Limited (Mitsubishi Chemical Holdings Corporation)
• Inventors: Saitoh, Takashi, Momose, Fumino, Nakauchi, Jun, Toyama, Masayuki, Maeda, Shinichi, Takahashi, Haruko
• Application Number:
  US11/662,384
• Publication Number:
  US 20080281014A1
• Time in Patent Office: Days
• US Class Current: 522/71
• CPC Class Codes: B29C 39/006 Monomers or prepolymers by reaction injection moulding B29C67/246
• CPC Class Codes: B29C 39/26 Moulds or cores
• CPC Class Codes: B29C 39/42 Casting under special conditions, e.g. vacuum
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: C08K 3/041 Carbon nanotubes
• CPC Class Codes: C08L 2666/04 Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
• CPC Class Codes: C08L 33/14 of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
• CPC Class Codes: C08L 33/20 Homopolymers or copolymers of acrylonitrile C08L55/02 takes precedence
• CPC Class Codes: C09D 133/14 of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
• CPC Class Codes: C09D 5/24 Electrically-conducting paints conductive materials H01B1/00
• CPC Class Codes: C09D 7/61 inorganic
• CPC Class Codes: C09D 7/70 characterised by shape, e.g. fibres, flakes or microspheres

Abstract

A composition containing a nanosubstance is provided. Since the composition includes a nanosubstance (a), a (meth)acrylate compound (b) including a polar group, and a solvent (c)/polymerizable monomer (i-1), it is capable of being dispersed or solubilized in various solvents such as organic solvents, hydrous organic solvents and in polymerizable monomers without impairing characteristics of the nanosubstance itself wherein the nanosubstance neither separates out nor aggregates during a long-term storage, the composition being excellent in conductivity, film-forming property and moldability and capable of applying to or coating a substrate by a simple method. A coated film or cured film of a composite formed by the composition on at least one surface of the substrate shows high transparency, and the composite is excellent in water resistance, weatherability and hardness.

Claims

1. A nanosubstance-containing composition comprising:

a nanosubstance (a);

a (meth)acrylic polymer (b) having a unit derived from a (meth)acrylic monomer expressed by the following formula (I); and

a solvent (c),

2. A nanosubstance-containing composition according to claim 1, further comprising an amine compound (d).

6. A method for preparing the nanosubstance-containing composition of claim 1, comprising:

mixing a nanosubstance (a), a (meth)acrylic polymer (b), and a solvent (c); and

irradiating ultrasonic waves to the mixture.

8. A method for preparing a composite, comprising:

applying the nanosubstance-containing composition of claim 1 to at least one surface of a substrate; and

forming a coated film or a cured film by leaving at room temperature, subjecting to a heating process and/or irradiating light.

11. A composite comprising a coated film or a cured film which is formed by applying the nanosubstance-containing composition of claim 1 to at least one surface of a substrate;

and leaving at room temperature, subjecting to a heating process and/or irradiating light.

14. A composite according to any one of claims 11 to 13, wherein an total light transmittance of the composite is 50% or greater.

15. A composite according to any one of claims 11 to 13, wherein the composite is a transparent conductive film, a transparent conductive sheet, or a transparent conductive molded article.

3. A nanosubstance-containing composition comprising:

a nanosubstance (a);

a (meth)acrylic polymer (b) having a unit derived from a (meth)acrylic monomer expressed by the following formula (I); and

a polymerizable monomer (i-1),

4. A nanosubstance-containing composition according to claim 3, further comprising a polymerization initiator (i-2).

5. A nanosubstance-containing composition according to claim 3, further comprising an amine compound (d).

7. A method for preparing the nanosubstance-containing composition of claim 3, comprising:

mixing a nanosubstance (a), a (meth)acrylic polymer (b), and a polymerizable monomer (i-1); and

irradiating ultrasonic waves to the mixture.

9. A method for preparing a composite, comprising:

applying the nanosubstance-containing composition of claim 3 to at least one surface of a substrate; and

forming a coated film or a cured film by leaving at room temperature, subjecting to a heating process and/or irradiating light.

10. A method for preparing a composite, comprising:

forming a cured film by applying the nanosubstance-containing composition of claim 3 to an inner surface of a mold and curing the nanosubstance-containing composition;

introducing a polymerizable material or a molten resin into the mold and solidifying it to be a substrate; and

separating the substrate together with the cured film from the mold.

12. A composite comprising a coated film or a cured film which is formed by applying the nanosubstance-containing composition of claim 3 to at least one surface of a substrate;

and leaving at room temperature, subjecting to a heating process and/or irradiating light.

13. A composite produced by:

forming a cured film by applying the nanosubstance-containing composition of claim 3 to inner surface of a mold and curing the composition;

introducing a polymerizable material or a molten resin into the mold and solidifying the material or the resin to be a substrate; and

separating the substrate together with the cured film from the mold.