EP0471078A1
Expired / Lapsed
EP
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Surface treatment and coating of molded article
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
Abstract
Abstract A method of improving the surface characteristics of a molded article, made from a composition comprising a thermoplastic resin and/or a rubbery substance which has been dynamically heat-treated in the presence of a cross-linking agent and which may optionally contain an inorganic filler, without detriment to the excellent properties thereof, such as rigidity, impact resistance, heat resistance, dimensional stability and processability, which comprises 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 11:36
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/16; B05; B05D; B05D3/00; B05D3/06; B05D3/061; B05D3/062; B05D3/063; B29C59/005; C; C08; C08K; C08K3/00; C08K3/01; C08K3/013; C08K5/00; C08K5/16; C08K5/20; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/16; C08L39/00; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0827; C08L2312/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
72 words
A surface treating and coating method for a molded article, characterized in that a molded article of a partially crosslinked, thermoplastic resin composition obtained by dynamically heat-treating (A) a thermoplastic resin and/or (B) a rubbery substance in the presence of (C) a crosslinking agent and, if desired, (D) a polyfunctional monomer is surface-treated by the radiation thereto of an ultraviolet light not longer than 300 nm in wave length and then coated.
Claim 2
Dependent Claim
96 words
A surface treating and coating method for a molded article, characterized in that a molded article of an inoragnic radiation filler-incorporated composition is surface-treated by the radiation thereto of an ultraviolet light not longer than 300 nm in wave length and then coated, said inorganic filler-incorporated composition comprising 100 parts by weight of a partially crosslinked resin composition obtained by dynamically heat-treating (A) a thermoplastic resin and/or (B) a rubbery substance in the presence of (C) a crosslinking agent and, if desired, (D) a polyfunctional monomer, and (E) 1-200 parts by weight of an inorganic filler.
Claim 3
Dependent Claim
25 words
A method as set forth in claim 1 or claim 2, wherein the thermoplastic resin is an α-olefin (co)polymer having 2 to 10 carbon atoms.
Claim 4
Independent Claim
27 words
A method as set forth in any of claims 1 to 3, wherein the rubbery substance (B) is ethylene-propylene random copolymer rubber or ethylene-propylene-diene random copolymer rubber.
Claim 5
Independent Claim
21 words
A method as set forth in any of claims 1 to 4, wherein the crosslinking agent (C) is a dihydroaromatic compound.
Claim 6
Independent Claim
29 words
A method as set forth in any of claims 1 to 5, wherein the dihydroaromatic compound is at least one member selected from 1,2-dihydroquinoline compounds, polymers thereof, and 9,10-dihydrophenanthrene.
References Cited (Backward Citations)
No citation records indexed.
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