PHOTOINITIATOR MIXTURE AND RADIATION CURABLE MATERIAL CONTAINING THE SAME MIXTURE

    公开(公告)号:JPH11322819A

    公开(公告)日:1999-11-26

    申请号:JP8037699

    申请日:1999-03-24

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject mixture stable to preservation, mixable and processable, having high reactivity and scarcely yellowing by including a monoacylphosphine oxide and a diacylphosphine oxide. SOLUTION: This mixture is obtained by including (A) a monoacylphosphine oxide which is preferably a liquid at 21 deg.C and represented by formula I [R is a 1-18C alkyl, phenyl or the like; R is phenyl or the like; R is a 1-18C alkyl, a (substituted)phenyl or the like] (e.g. 2,4,6- trimethylbenzoylethoxyphenylphosphine oxide), (B) a diacylphosphine oxide that is preferably a solid at 21 deg.C and represented by formula II (R is a 1-18C alkyl or the like; R and R are each a 1-18C alkyl, phenyl or the like) [e.g. bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide]. The contents of the components based on the sum total of the weights of the components A and B are preferably 70-98 wt.% of the component A and 2-30 wt.% of the component B.

    RADIATION-CURABLE BINDER FOR PRINTING INK

    公开(公告)号:JPH11166102A

    公开(公告)日:1999-06-22

    申请号:JP25519998

    申请日:1998-09-09

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To obtain a mixture having a good ability to wet pigments, exhibiting a low yield point even at high viscosity, and being useful as a binder by constructing the mixture from a condensation resin constructed from a urea (derivative) and an acidic-CH aldehyde or ketone and a radiation-curable compound having a plurality of (meth)acryloyl groups. SOLUTION: This mixture is constructed from 10-90 wt. % condensation resin constructed from a urea (derivative) and an acidic-CH aldehyde or ketone and, optionally, HCHO, desirably comprising 50-100 wt.% acidic-CH aldehyde or ketone and 0-50 wt.% HCHO, constructed from an aldehyde or ketone (e.g. i-butylaldehyde) and desirably having a molar ratio of the urea (derivative) to the aldehyde or ketone of 1:4 to 1:10 and 90-10 wt. % radiation-curable compound desirably containing a polyester acrylate or a polyether acrylate having two or more, desirably, 2-20 (meth)acryloyl groups.

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