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EP0466930A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Surface treatment of thermoplastic resin molding

Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1991-01-23
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Granted: —
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Expires: 2011-01-23
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Abstract

Abstract A method of improving the surface characteristics of a molded article made from a composition comprising a thermoplastic resin and a functionalized polyolefin resin containing at least one member, selected from among a monomer containing a carboxyl, carboxylic ester, or acid anhydride group, an epoxidized monomer, a hydroxylated monomer, an aminated monomer, an alkenyl cyclic imino ether derivative and a poly-functional monomer, said composition optionally containing an inorganic filler or a rubbery substance, without detriment to the excellent properties thereof, such as rigidity, impact resistance, heat resistance, dimensional stability and processability, said method comprising applying an ultraviolet radiation with a wavelength of 300 nm or less thereto.

Inventors

  • 👤 Kohichiroh Katoh
  • 👤 Motomi Nogiwa
  • 👤 Yoshiharu Iwasaki

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 11:44
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/005; B05; B05D; B05D3/00; B05D3/06; B05D3/061; B05D3/062; B05D3/063; B29C59/16; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0827

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 94 words
A surface treating method for a thermoplastic resin molded article, characterized by radiating an ultraviolet light not longer than 300 nm in wavelength to the molded article, said molded article being formed by a composition containing: (A) 50-95% by weight of a thermoplastic resin, and (B) 5-50% by weight of a polyolefin resin functionalized by at least one member selected from B1: carboxylic acid group-, carboxylic ester group- or acid anhydride group-containing monomers, B2: epoxy group-containing monomers, B3: hydroxyl group-containing monomers, B4: amino group-containing monomers, B5: alkenyl cyclic iminoether derivatives and B6: polyfunctional monomers.
Claim 2
Dependent Claim 94 words
A surface treating method for a thermoplastic resin molded article, characterized by radiating an ultraviolet light not longer than 300 nm in wavelength to the molded article, said molded article being formed by a composition containing: (A) 50-95% by weight of a thermoplastic resin, and (B) 5-50% by weight of a polyolefin resin functionalized by at least one member selected from B1: carboxylic acid group-, carboxylic ester group- or acid anhydride group-containing monomers, B2: epoxy group-containing monomers, B3: hydroxyl group-containing monomers, B4: amino group-containing monomers, B5: alkenyl cyclic iminoether derivatives and B6: polyfunctional monomers.
Claim 3
Dependent Claim 46 words
A surface treating method as set forth in claim 1, wherein said composition further contains: (C) 5-150 parts by weight of an inorganic filler, and/or (D) 3-50 parts by weight of a rubber substance, based on 100 parts by weight of said components (A) + (B).
Claim 4
Dependent Claim 26 words
A surface treating method as set forth in claim 1, wherein the functionalization of the polyolefin resin (B) is performed by graft-modification, random copolymerization, or impregnation.

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