Invention Grant
US07790812B2 Epoxy resin curing agent produced by heating anhydride and polyester in presence of hydrogen and hydrogenation catalyst
有权
环氧树脂固化剂通过在氢气和氢化催化剂存在下加热酸酐和聚酯制备
- Patent Title: Epoxy resin curing agent produced by heating anhydride and polyester in presence of hydrogen and hydrogenation catalyst
- Patent Title (中): 环氧树脂固化剂通过在氢气和氢化催化剂存在下加热酸酐和聚酯制备
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Application No.: US11721825Application Date: 2005-12-06
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Publication No.: US07790812B2Publication Date: 2010-09-07
- Inventor: Ryusuke Tanaka , Minoru Suzuki
- Applicant: Ryusuke Tanaka , Minoru Suzuki
- Applicant Address: JP Tokyo
- Assignee: Hitachi Chemical Company, Ltd.
- Current Assignee: Hitachi Chemical Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2004-369323 20041221
- International Application: PCT/JP2005/022341 WO 20051206
- International Announcement: WO2006/067955 WO 20060629
- Main IPC: C08L63/00
- IPC: C08L63/00 ; C08L67/02 ; H01L23/29
Abstract:
The present invention relates to a process for producing an acid anhydride-based epoxy resin curing agent, an acid anhydride-based epoxy resin curing agent, an epoxy resin composition, and a cured product and optical semiconductor device using the same. The process for producing an acid anhydride-based epoxy resin curing agent according to the present invention comprises heating a mixture containing a polyvalent carboxylic acid anhydride and a polyester resin in the presence of hydrogen gas and a hydrogenation catalyst.
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