EP0311232A2
Expired / Lapsed
EP
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Process for surface treatment of moldings of liquid-crystalline polyester resin
Assignee: Polyplastics Co Ltd
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Filing: 1988-05-18
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Granted: —
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Expires: 2008-05-18
Abstract
Abstract Provided herein is a process for surface treatment of moldings of liquid-crystalline polyester resin which comprises roughening with an alkaline aqueous solution the surface of moldings of melt-processable polyester capable of forming an anisotropic molten phase. The process is intended to provide the moldings with surface characteristics suitable for surface decoration such as printing, painting, metallizing, and plating and also for bonding with an adhesive.
Inventors
- 👤 Yoshiharu Suzuki
- 👤 Toshiro Murao
- 👤 Michiaki Ogura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 13:22
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/02; C08J7/04; C08J7/042; C08J7/0423; C08J7/043; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/22; C08J2367/00; C08J2367/02; C08J2367/03; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/0373; H05K3/00; H05K3/10; H05K3/18; H05K3/181; H05K3/38; H05K3/381; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31786
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
33 words
A process for surface treatment of moldings of liquid-crystalline polyester resin which comprises roughening with an alkaline aqueous solution the surface of moldings of melt-processable polyester capable of forming an anisotropic molten phase.
Claim 2
Dependent Claim
33 words
A process for surface treatment of moldings of liquid-crystalline polyester resin which comprises roughening with an alkaline aqueous solution the surface of moldings of melt-processable polyester capable of forming an anisotropic molten phase.
Claim 3
Dependent Claim
41 words
A process for surface treatment of moldings of liquid-crystalline polyester resin as claimed in Claim 1 wherein the molding which has undergone surface roughening with an alkaline aqueous solution is treated with an aqueous solution of an ampholytic surface active agent.
Claim 4
Dependent Claim
86 words
A process for surface treatment of moldings of liquid-crystalline polyester resin as claimed in Claim 2 wherein said polyester is incorporated with one or more than one kind of inorganic filler selected from the elements belonging to Groups IIa, IIb, IIIa, IVa, and Va of the Periodic Table, oxides, sulfates, phosphates, and silicates of said elements; metallic elements such as aluminum, silicon, tin, lead, antimony, and bismuth; and oxides thereof, in an amount of 5 to 80 wt% of the total amount of the molding composition.
Claim 5
Dependent Claim
86 words
A process for surface treatment of moldings of liquid-crystalline polyester resin as claimed in Claim 1 wherein said polyester is incorporating with one or more than one kind of inorganic filler selected from the elements belonging to Groups IIa, IIb, IIIa, IVa, and Va of the Periodic Table, oxides, sulfates, phosphates, and silicates of said elements; metallic elements such as aluminum, silicone, tin, lead, antimony, and bismuth; and oxides thereof, in an amount of 5 to 80 wt% of the total amount of the molding composition.
Claim 6
Dependent Claim
43 words
A process for surface treatment of moldings of liquid-crystalline polyester resin as claimed in any of Claims 1 to 4 wherein said alkaline aqueous solution is an aqueous solution containing 20 wt% or more of hydroxide of alkali metal or alkaline earth metal.
Claim 7
Dependent Claim
38 words
A process for surface treatment of moldings of liquid-crystalline polyester resin as claimed in Claim 2 wherein said ampholytic surface active agent is one which is selected from carboxybetaine type, sulfobetaine type, aminocarboxylate type, and imidazoline derivative type.
Claim 8
Dependent Claim
51 words
A process for surface treatment of moldings of liquid-crystalline polyester resin as claimed in Claim 3 wherein said inorganic filler is one or more than one member selected from the group consisting of oxides, sulfates, phosphates, and silicates of the elements belonging to Groups IIa and IIb of the Periodic Table.
Claim 9
Dependent Claim
48 words
A process for surface treatment of moldings of liquid-crystalline polyester resin as claimed in Claim 3 wherein said inorganic filler is one or more than one member selected from the group consisting of elements belonging to Groups IIIa, IVa, and Va of the Periodic Table and oxides thereof.
Claim 10
Dependent Claim
37 words
A process for surface treatment of moldings of liquid-crystalline polyester resin as claimed in Claim 3 wherein said inorganic filler is in the form of fine powder having an average particle diameter of 0.01 to 100 µm.
Claim 11
Dependent Claim
57 words
A process for surface treatment of moldings of liquid-crystalline polyester resin as claimed in Claim 3 wherein said inorganic filler is used in combination with a fibrous inorganic substance 1-30 µm in diameter and 5 µm to 1 mm in length in an amount of 1 to 60 wt% of the total amount of the molding composition.
Claim 12
Dependent Claim
27 words
A process for plating moldings of liquid-crystalline polyester resin which comprises performing plating after the surface treatment performed according to the process as claimed in Claim 1.
Claim 13
Dependent Claim
32 words
Moldings of liquid-crystalline polyester resin which is provided with the final surface finishing such as plating and printing after the surface treatment performed according to the process as claimed in Claim 1.
References Cited (Backward Citations)
No citation records indexed.
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