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Title:
ARTICLE HAVING UNEVEN SURFACE AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2001/003901
Kind Code:
A1
Abstract:
A method for producing an article having a slightly uneven surface which comprises preparing a liquid for forming a film by subjecting a solution containing a specific silane compound (A) having a non-hydrolyzable organic group and a hydrolyzable group, another specific silane compound (B) having a hydrolyzable group and a catalyst to hydrolysis and dehydrating condensation, placing the film-forming liquid in the form of a film between a substrate and a mold, and heating them, to thereby produce an article comprising the substrate and, covering the substrate, a film having an uneven surface in a shape obtained by reversing the shape of the surface of the above mold, wherein the liquid for forming a film contains the above silane compounds (A) and (B) in amounts of 0.5 to 40 wt.% relative to that of (A) in the above solution and of 0.5 to 60 wt.% relative to that of (B) in the above solution, respectively, and a condensate formed by the above hydrolysis and dehydrating condensation has a molecular weight of 300 to 1,900. The method can be employed for producing an article which has a slightly uneven surface and is covered with a film being free from the occurrence of cracking and separation from a substrate even in the case of a considerably thick film.

Inventors:
NAKAMURA KOICHIRO (JP)
HORI MASAHIRO (JP)
YAMAMOTO HIROAKI (JP)
Application Number:
PCT/JP2000/004502
Publication Date:
January 18, 2001
Filing Date:
July 06, 2000
Export Citation:
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Assignee:
NIPPON SHEET GLASS CO LTD (JP)
NAKAMURA KOICHIRO (JP)
HORI MASAHIRO (JP)
YAMAMOTO HIROAKI (JP)
International Classes:
G02B3/00; G02B5/18; (IPC1-7): B29C39/10; B29C39/24; C08J5/00; G02B5/18; G02B1/04
Foreign References:
EP0603274A11994-06-29
JPH1013345A1998-01-16
JPH0977509A1997-03-25
JPH07235075A1995-09-05
Other References:
See also references of EP 1112829A4
Attorney, Agent or Firm:
Ohshima, Masataka (Yotsuya 4-chome Shinjuku-ku Tokyo, JP)
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