Method for producing molded article

Patent metadata

Field	Value
Publication number	US-11225557-B2
Application number	US-201716082441-A
Country	US
Kind code	B2
Filing date	Mar 6, 2017
Priority date	Mar 9, 2016
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

A method for producing a molded article from a molding material, wherein the molding material contains a fluorine-containing graft chain. Also disclosed is a molding material for a fluorine-containing molded article including a resin material having a graft chain.

First claim

The invention claimed is:

1. A method for producing a molded article from a molding material wherein the molding material comprises a resin material having a fluorine-containing graft chain on the resin material,
the molding material is a pellet or powder,
the resin material is a non-fluorine resin selected from the group consisting of polyolefin-based resins, polyvinyl chloride-based resins, acrylic resins, polyesters, polyether, polyether ketone, polyetherether ketone, polyetherimide, polyacetal, polyphenyleneoxide, modified polyphenyleneoxide, polyarylate, aromatic polyesters, styrene-based resins, polyurethane-based resins, chlorinated polyethylene-based resins, epoxy resins, phenol resins, urea resins, melamine resins, unsaturated polyesters, silicone resins, polydimethyl silicone and polyurethane, or copolymers, blends, or polymer alloys thereof, and the depth at which the fluorine-containing graft chain is present is a depth up to 0.001 to 99% of the thickness of the molding material from the surface of the molding material, and
wherein the method comprising applying an ionizing radiation to the resin material in pellet or powder form, then reacting the resin material with a fluorine-containing graft compound to obtain the molding material, and then molding the molding material to form the molded article.

2. The method according to claim 1 wherein the molding material is a pellet.

3. The method according to claim 1 wherein the molding material is powder.

4. A molding material for a fluorine-containing molded article comprising a resin material having a graft chain on the resin material, wherein
the molding material is a pellet or powder,
the resin material is a non-fluorine resin selected from the group consisting of polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, polyvinyl chloride-based resins, acrylic resins, polyesters, polyether, polyether ketone, polyetherether ketone, polyetherimide, polyacetal, polyphenyleneoxide, modified polyphenyleneoxide, polyarylate, aromatic polyesters, styrene-based resins, polyurethane-based resins, chlorinated polyethylene-based resins, epoxy resins, phenol resins, urea resins, melamine resins, unsaturated polyesters, silicone resins, polydimethyl silicone and polyurethane, or copolymers, blends, or polymer alloys thereof, and
the depth at which the fluorine-containing graft chain is present is a depth up to 0.001 to 99% of the thickness of the molding material from the surface of the molding material.

5. The molding material according to claim 4 wherein the molding material is a pellet.

6. The molding material according to claim 4 wherein the molding material is powder.

7. The method according to claim 1 wherein the molding material is a pellet.

8. The method according to claim 1 wherein the molding material is powder.

9. The method according to claim 1 , wherein a graft ratio of the graft chain introduced into the resin material is 0.10 to 5.0%.

10. The molding material according to claim 4 , wherein a graft ratio of the graft chain introduced into the resin material is 0.10 to 5.0%.

11. The method according to claim 1 , wherein the resin material is selected from the group consisting of polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, modified polyolefin and polyvinyl chloride, polyvinylidene chloride, polystyrene, polyamide, polyimide, polyamideimide, polycarbonate, poly-(4-methylpentene-1), ionomer, polymethylmethacrylate, acryl-styrene copolymer, butadiene-styrene copolymer, ethylene-vinyl alcohol copolymer, polyethylene terephthalate, polybutylene terephthalate, polycyclohexane terephthalate, polyether, polyether ketone, polyetherether ketone, polyetherimide, polyacetal, polyphenyleneoxide, modified polyphenyleneoxide, polyarylate, liquid crystal aromatic polyesters, styrene-based resins, polyurethane-based resins, chlorinated polyethylene-based resins, epoxy resins, phenol resins, urea resins, melamine resins, unsaturated polyesters, silicone resins, polydimethyl silicone and polyurethane, or copolymers, blends, or polymer alloys thereof.

12. The molding material according to claim 4 , wherein the resin material is selected from the group consisting of polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, modified polyolefin and polyvinyl chloride, polyvinylidene chloride, polystyrene, polyamide, polyimide, polyamideimide, polycarbonate, poly-(4-methylpentene-1), ionomer, polymethylmethacrylate, acryl-styrene copolymer, butadiene-styrene copolymer, ethylene-vinyl alcohol copolymer, polyethylene terephthalate, polybutylene terephthalate, polycyclohexane terephthalate, polyether, polyether ketone, polyetherether ketone, polyetherimide, polyacetal, polyphenyleneoxide, modified polyphenyleneoxide, polyarylate, liquid crystal aromatic polyesters, styrene-based resins, polyurethane-based resins, chlorinated polyethylene-based resins, epoxy resins, phenol resins, urea resins, melamine resins, unsaturated polyesters, silicone resins, polydimethyl silicone and polyurethane, or copolymers, blends, or polymer alloys thereof.

13. The molding material according to claim 4 wherein the fluorine-containing graft chain is not present at a remaining depth of the thickness of the molding material from where the fluorine-containing graft chain is present.

Assignees

• Daikin Ind Ltd

Inventors

• Satoh Kazuyuki
• Usugaya Mitsuhiro
• Adachi Kenji

Classifications

• C08J3/12

  Powdering or granulating · CPC title

• C08J3/126

  Polymer particles coated by polymer, e.g. core shell structures · CPC title

• C08J3/28 Primary

  Treatment by wave energy or particle radiation · CPC title

• C08F255/00

  Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 · CPC title

• C08F259/08

  on to polymers containing fluorine · CPC title