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1. (JP2010168664) METHOD FOR PRODUCING MOLD AND METHOD FOR PRODUCING ANTI-REFLECTION FILM USING MOLD

Office : Japan
Application Number: 2010093734 Application Date: 15.04.2010
Publication Number: 2010168664 Publication Date: 05.08.2010
Grant Number: 5102324 Grant Date: 05.10.2012
Publication Kind : B2
IPC:
C25D 11/24
C25D 11/12
C25D 11/04
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
D
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
11
Electrolytic coating by surface reaction, i.e. forming conversion layers
02
Anodisation
04
of aluminium or alloys based thereon
18
After-treatment, e.g. pore-sealing
24
Chemical after-treatment
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
D
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
11
Electrolytic coating by surface reaction, i.e. forming conversion layers
02
Anodisation
04
of aluminium or alloys based thereon
12
Anodising more than once, e.g. in different baths
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
D
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
11
Electrolytic coating by surface reaction, i.e. forming conversion layers
02
Anodisation
04
of aluminium or alloys based thereon
Applicants: シャープ株式会社
Inventors: 伊原 一郎
Agents: 奥田 誠司
喜多 修市
山下 亮司
三宅 章子
川口 寿志
Priority Data: 2008333674 26.12.2008 JP
Title: (EN) METHOD FOR PRODUCING MOLD AND METHOD FOR PRODUCING ANTI-REFLECTION FILM USING MOLD
(JA) 型の製造方法および型を用いた反射防止膜の製造方法
Abstract:
(EN) PROBLEM TO BE SOLVED: To provide a method for producing a mold of an aluminum base in which an anodized film is formed, which is directly usable for a mold for forming a moth-eye structure.

SOLUTION: The method for producing the mold for the moth-eye includes: a step (a) in which the aluminum base is prepared, wherein content of aluminum is <99.99 mass%, content of an element with higher standard electrode potential than aluminum is 10 ppm, and content of an element with lower standard electrode potential than aluminum is 0.1 mass%; a step (b) in which a porous alumina layer having a plurality of fine recesses is formed by partially anodizing the aluminum base; a step (c) in which the plurality of the fine recesses of the porous alumina layer is enlarged by contacting the porous alumina layer with an etchant after the step (b); and a step (d) in which the plurality of the fine recesses are grown by further anodizing after the step (c).

COPYRIGHT: (C)2010,JPO&INPIT
(JA)

【課題】 モスアイ構造を形成するための型としてそのまま用いることができる、陽極酸化膜が形成されたAl基材の型の製造方法を提供する。
【解決手段】 本発明のモスアイ用型の製造方法は、Alの含有量が99.99質量%未満で、標準電極電位がAlよりも高い元素の含有量が10ppm以下で、標準電極電位がAlよりも低い元素の含有量が0.1質量%以上であるAl基材を用意する工程(a)と、Al基材を部分的に陽極酸化することによって、複数の微細な凹部を有するポーラスアルミナ層を形成する工程(b)と、工程(b)の後に、ポーラスアルミナ層をエッチング液に接触させることによって、ポーラスアルミナ層の複数の微細な凹部を拡大させる工程(c)と、工程(c)の後に、さらに陽極酸化することによって、複数の微細な凹部を成長させる工程(d)とを包含する。
【選択図】 図1


Also published as:
EP2377970EP2383372US20100283165JP4531131JPWO2010073636US20110012272
CN102027160IN3857/CHENP/2010BRPI0906259WO/2010/073636