Title:
METHOD FOR PRODUCING PHOTOSENSITIVE RESIN AND PHOTOSENSITIVE RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2012/029806
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method for producing a photosensitive resin that has reduced chlorinity, contains fewer metal-corroding components and the like, and is excellent in terms of required properties such as adhesiveness of the cured film, in order to achieve a highly reliable printed circuit board. The method for producing this photosensitive composition is characterized by: introducing a carboxylic acid ester (c) containing a polymerizable unsaturated group to a resin (b) having an extended chain in which some or all of the phenolic hydroxyl groups in a resin (a) having two or more phenolic hydroxyl groups per molecule are extended by a (poly) oxyalkylene group having an alcoholic hydroxyl group on an end, while in the presence of a zinc or zirconium acetylacetonate complex (d), and in the range of 0.2-0.8 equivalents of the polymerizable unsaturated group per 1 equivalent of the alcoholic hydroxyl group in the resin (b); and by reacting the remaining alcoholic hydroxyl groups with a polybasic acid anhydride (e).
Inventors:
SAKAMOTO ATSUSHI (JP)
UEI HIROSHI (JP)
OGAWA KOUJI (JP)
KOBAYASHI MASAYUKI (JP)
NISHIGUCHI SHOUJI (JP)
UEI HIROSHI (JP)
OGAWA KOUJI (JP)
KOBAYASHI MASAYUKI (JP)
NISHIGUCHI SHOUJI (JP)
Application Number:
PCT/JP2011/069647
Publication Date:
March 08, 2012
Filing Date:
August 30, 2011
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
SAKAMOTO ATSUSHI (JP)
UEI HIROSHI (JP)
OGAWA KOUJI (JP)
KOBAYASHI MASAYUKI (JP)
NISHIGUCHI SHOUJI (JP)
SAKAMOTO ATSUSHI (JP)
UEI HIROSHI (JP)
OGAWA KOUJI (JP)
KOBAYASHI MASAYUKI (JP)
NISHIGUCHI SHOUJI (JP)
International Classes:
C08G8/28; C08L63/00; G03F7/027
Foreign References:
| JP2004359728A | 2004-12-24 | |||
| JP2004359729A | 2004-12-24 | |||
| JP2003280189A | 2003-10-02 | |||
| JP2003280190A | 2003-10-02 | |||
| JP2003280191A | 2003-10-02 | |||
| JP2000178330A | 2000-06-27 | |||
| JPH1143524A | 1999-02-16 | |||
| JPH02175746A | 1990-07-09 | |||
| JPH026517A | 1990-01-10 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)
Michiharu Soga (JP)
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Claims: