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Title:
ARTICLE HAVING PREDETERMINED SURFACE SHAPE AND METHOD FOR PREPARING THE SAME
Document Type and Number:
WIPO Patent Application WO/2002/053345
Kind Code:
A1
Abstract:
A method for preparing an article having a predetermined surface shape, which comprises disposing a composition comprising a compound having a dimethylsiloxane skeleton having at least three repeating units and at least one polymerizable organic group in a molecule, between the surface of a substrate and the surface of a mold for forming, in a state of close contact with both of them, in the form of a film, applying at least one of heat and an ultraviolet ray to the above composition disposed in a film form, and then releasing the mold, and optionally heating thereafter, thereby forming an article comprising the substrate and a film which covers the surface of the substrate and has a surface of a shape obtained by inverting the surface shape of the above mold. The method can be used for preparing an article having a predetermined surface shape, such as an optical element which has a fine convex and concave surface having high heat resistance and exhibiting high dimensional accuracy due to reduced heat shrinkage during film formation.

Inventors:
Hori, Masahiro c/o Nippon Sheet Glass Co. (Ltd. 7-28 Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
Nakamura, Koichiro c/o Nippon Sheet Glass Co. (Ltd. 7-28 Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
Kawadu, Mitsuhiro c/o Nippon Sheet Glass Co. (Ltd. 7-28 Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
Shikata, Hiroko c/o Nippon Sheet Glass Co. (Ltd. 7-28 Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
Yamamoto, Hiroaki c/o Nippon Sheet Glass Co. (Ltd. 7-28 Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
Application Number:
PCT/JP2001/011146
Publication Date:
July 11, 2002
Filing Date:
December 19, 2001
Export Citation:
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Assignee:
NIPPON SHEET GLASS CO., LTD. (7-28, Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
Hori, Masahiro c/o Nippon Sheet Glass Co. (Ltd. 7-28 Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
Nakamura, Koichiro c/o Nippon Sheet Glass Co. (Ltd. 7-28 Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
Kawadu, Mitsuhiro c/o Nippon Sheet Glass Co. (Ltd. 7-28 Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
Shikata, Hiroko c/o Nippon Sheet Glass Co. (Ltd. 7-28 Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
Yamamoto, Hiroaki c/o Nippon Sheet Glass Co. (Ltd. 7-28 Kitahama 4-chome Chuo-ku Osaka-shi, Osaka, 541-0041, JP)
International Classes:
B29C39/02; B29C39/10; B29C39/14; C08F283/12; C08F299/08; C08J7/04; C08L51/08; (IPC1-7): B29C39/10; C08J5/00
Foreign References:
US4777233A
JPH06240030A
JPH0732381A
EP1014113A2
JP2001106710A
Other References:
See also references of EP 1344620A1
Attorney, Agent or Firm:
Ohshima, Masataka (Ohshima Patent Office Fukuya Bldg. 3, Yotsuya 4-chome Shinjuku-ku, Tokyo, 160-0004, JP)
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