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Title:
PHOTOCURABLE COMPOSITION, CURED OBJECT, AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2001/074918
Kind Code:
A1
Abstract:
A photocurable composition which comprises the following ingredients (A), (B), and (C) and gives a cured object having improved mechanical strength and retaining intact properties such as low birefringence and heat resistance; and a cured object obtained therefrom. Ingredient (A): a bis(meth)acrylate represented by the general formula (I) 70 to 99 parts by weight (wherein R?1¿ and R?2¿ each represents hydrogen or methyl; m is 1 or 2; n is 0 or 1; and p and q each is 0, 1, or 2); Ingredient (B): a mono(meth)acrylate represented by the general formula (II) 1 to 30 parts by weight (wherein R?3¿ represents hydrogen or methyl; m is 1 or 2; n is 0 or 1; and r and s each is 0, 1, or 2); and Ingredient (C): a mercapto compound having a functionality of at least 2 1 to 10 parts by weight.

Inventors:
Hayakawa, Seiichirou c/o Mitsubishi Chemical Corporation Tsukuba Research Center 3-1 (Chuo 8-chome Amimachi, Inashiki-gun Ibaraki, 300-0332, JP)
Sakai, Akihiko c/o Mitsubishi Chemical Corporation Tsukuba Plant 1000 (Higashimamiana-cho Ushiku-shi Ibaraki, 300-1201, JP)
Esaki, Akira c/o Mitsubishi Chemical Corporation Tsukuba Research Center 3-1 (Chuo 8-chome Amimachi, Inashiki-gun Ibaraki, 300-0332, JP)
Tamura, Yutaka c/o Mitsubishi Chemical Corporation Tsukuba Research Center 3-1 (Chuo 8-chome Amimachi, Inashiki-gun Ibaraki, 300-0332, JP)
Application Number:
PCT/JP2001/002490
Publication Date:
October 11, 2001
Filing Date:
March 27, 2001
Export Citation:
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Assignee:
MITSUBISHI CHEMICAL CORPORATION (5-2 Marunouchi 2-chome Chiyoda-ku, Tokyo, Tokyo, 100-0005, JP)
Hayakawa, Seiichirou c/o Mitsubishi Chemical Corporation Tsukuba Research Center 3-1 (Chuo 8-chome Amimachi, Inashiki-gun Ibaraki, 300-0332, JP)
Sakai, Akihiko c/o Mitsubishi Chemical Corporation Tsukuba Plant 1000 (Higashimamiana-cho Ushiku-shi Ibaraki, 300-1201, JP)
Esaki, Akira c/o Mitsubishi Chemical Corporation Tsukuba Research Center 3-1 (Chuo 8-chome Amimachi, Inashiki-gun Ibaraki, 300-0332, JP)
Tamura, Yutaka c/o Mitsubishi Chemical Corporation Tsukuba Research Center 3-1 (Chuo 8-chome Amimachi, Inashiki-gun Ibaraki, 300-0332, JP)
International Classes:
C08F22/10; C08F222/10; G03F7/00; G03F7/027; (IPC1-7): C08F220/20; G03F7/027
Domestic Patent References:
WO2000015591A12000-03-23
Foreign References:
JPH11223702A1999-08-17
JPH09152510A1997-06-10
JPH061869A1994-01-11
JPH09286809A1997-11-04
JPH08311125A1996-11-26
JPH10231340A1998-09-02
JPH09152510A1997-06-10
Other References:
See also references of EP 1275668A4
Attorney, Agent or Firm:
Oguri, Shohei (Eikoh Patent Office 28th Floor, ARK Mori Building 12-32, Akasaka 1-chome Minato-ku Tokyo, 107-6028, JP)
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