Photosensitive resin composition and photosensitive dry film containing the same
AssigneeTokyo Ohka Kogyo Co., Ltd.
InventorsSyunji Nakazato, Ryuma Mizusawa, Hiroyuki Obiya, Takashi Ono, Yusuke Fujito
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Abstract
A photosensitive resin composition which gives a dry film having a sand blast proof property and a development property in a well-balanced manner. A photosensitive resin composition containing a carboxy group-containing urethane (meth)acrylate compound having two or more of (meth)acryloyl groups per molecule whose acid value of less than 10 mg KOH/g, an alkali soluble polymer compound, a photopolymerization initiator and a photopolymerizable compound (D) including in the structure thereof a structural unit represented by the formula (I) gives such a well-balanced properties. OCH2CH2 (I)
Claims8
A photosensitive resin composition comprising a carboxy-modified urethane (meth)acrylate compound (A) having two or more (meth)acryloyl groups per molecule whose acid value is less than 10 mg KOH/g, an alkali soluble polymer compound (B), a photopolymerization initiator (C) and a photopolymerizable compound (D) containing structural units represented by the formula (I-1):
- wherein R1 and R2 each independently represent H or a methyl group, and n is an integer of 10 to 40, and
- wherein the glass transition point of said carboxy-modified urethane (meth)acrylate compound (A) after being cured is −50° C. to 50° C.
A photosensitive resin composition comprising a carboxy-modified urethane (meth)acrylate compound (A) having two or more (meth)acryloyl groups per molecule whose acid value is less than 10 mg KOH/g, an alkali soluble polymer compound (B), a photopolymerization initiator (C) and a photopolymerizable compound (D) containing structural units represented by the formula (I-2):
- wherein R3 and R4 each independently represent H or a methyl group, A represents an aliphatic hydrocarbon group having 1 to 20 carbon atoms, an alicyclic hydrocarbon group having 3 to 20 carbon atoms, an aromatic hydrocarbon group having 6 to 20 carbon atoms, or a hydrocarbon group binding two or more of these substituents, and p and q are positive integers selected so that p+q is 10 to 40, and
- wherein the glass transition point of said carboxy-modified urethane (meth)acrylate compound (A) after being cured is −50° C. to 50° C.
Dependencies are inferred from the claim text.