Resin fine powder consisting of 4-methyl-1-pentene polymer, composition containing same, and process for production thereof

Patent metadata

Field	Value
Publication number	US-9260549-B2
Application number	US-201113643866-A
Country	US
Kind code	B2
Filing date	Feb 8, 2011
Priority date	Apr 28, 2010
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

A resin fine powder which consists of a 4-methyl-1-pentene polymer that exhibits a limiting viscosity [η] of 1.0×10 −2 to less than 3.0 dl/g as determined in decalin at 135° C. and which has a median particle diameter [D 50 ] of 1.0×10 −1 to 5.0×10 μm; and a composition which comprises the resin fine powder and at least one sinterable powder selected from the group consisting of metal powders and ceramic powders.

First claim

The invention claimed is:

1. A composition comprising:
(A) 0.1 to 150 weight parts of a fine resin powder in a dry form, wherein the fine resin powder is composed of a 4-methyl-1-pentene polymer having an intrinsic viscosity [η] ranging from 1.0×10 −2 to less than 5.0×10 −1 dl/g as measured in decalin at 135° C., and has a mean particle diameter D 50 ranging from 1.0×10 −1 to 5.0×10 μm; and
(B) 100 weight parts of at least one sinterable powder selected from the group consisting of metal powder and ceramic powder.

2. The composition according to claim 1 , further comprising (C) 5 to 200 weight parts of a plasticizing binder.

3. A method of producing a porous sintered body, comprising:
extrusion molding the composition according to claim 1 into a molded article;
heating the molded article to gasify or decompose the fine resin powder; and
sintering the molded article.

4. The method according to claim 3 , wherein the porous sintered body is a honeycomb filter.

5. A paint comprising:
a fine resin powder in a dry form, wherein the fine resin powder is composed of a 4-methyl-1-pentene polymer having an intrinsic viscosity [η]ranging from 1.0 ×10 −2 to less than 5.0×10 −1 dl/g as measured in decalin at 135° C., and has a mean particle diameter D 50 ranging from 1.0×10 −1 to 5.0×10 μm,
a matrix resin,
an organic solvent, and
a colorant.

6. An ink comprising:
a fine resin powder in a dry form, wherein the fine resin powder is composed of a 4-methyl-1-pentene polymer having an intrinsic viscosity [η] ranging from 1.0 ×10 −2 to less than 5.0×10 −1 dl/g as measured in decalin at 135° C., and has a mean particle diameter D 50 ranging from 1.0×10 −1 to 5.0×10 μm,
a matrix resin,
an organic solvent, and
a colorant.

Assignees

• Kawabe Kuniaki
• Itou Toshiyuki
• Kurihara Mai
• Fujihara Kazutoshi
• Seki Ryouichi
• Mitsui Chemicals Inc

Inventors

• Kawabe Kuniaki
• Itou Toshiyuki
• Kurihara Mai
• Fujihara Kazutoshi
• Seki Ryouichi

Classifications

• C09D11/106

  containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C09D11/033

  characterised by the solvent · CPC title

• C08F110/14 Primary

  Monomers containing five or more carbon atoms · CPC title

• C08J3/12

  Powdering or granulating · CPC title

• C08L23/20

  having four to nine carbon atoms · CPC title