- Photosensitive resin composition, cured product, insulating material, resin material for solder resists and resist member
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Provided are: a photosensitive resin composition comprising an acid group-containing (meth)acrylate resin (A) and a photopolymerization initiator (B), characterized in that the photopolymerization initiator (B) is a product of a Michael addition reaction
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Paragraph 0221; 0228-0230
(2020/02/22)
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- A new amino ketone photoinitiator and in UV - LED light curing system application (by machine translation)
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The invention provides a method suitable for UV - LED light source setting new amino ketone photo initiator, can in long wave zone (365 - 395 nm) has stronger absorption, UV - LED light source is suitable for curing, has overcome the traditional cured high energy consumption, pollution and shortcomings. Electronic unlocalized is good, with strong intramolecular electron transfer performance and excellent photoelectric nature, in the long-wave region 365 nm - 395 nm range have strong absorption, is suitable for high-power UVLED ultraviolet light curing system, compared with the prior art such optical initiator has a considerable advantage. (by machine translation)
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- Alpha-amino acetophenone photoinitiator preparation method
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The present invention relates to an alpha-amino acetophenone photoinitiator preparation method, particularly to a preparation method of 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone and 2-(4-methylbenzyl)-2-dimethylamino-1-(4-morpholinophenyl)butanone. According to the present invention, 1-p-fluorophenyl-1-butanone is adopted as the raw material, and only the safe and cheap solvent is used in the whole method to conveniently prepare 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone and 2-(4-methylbenzyl)-2-dimethylamino-1-(4-morpholinophenyl)butanone; and the method has characteristics of cheap and readily available raw materials, high yield, no requirement of intermediate purification, and continuous reaction without solvent replacement, and is the preparation method with characteristics of low cost, environmental protection and easy operation and suitable for industrialization.
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- Novel morpholinoketone derivatives, and preparation process and uses of the same
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Disclosed herein are novel morpholinoketone derivatives of formula (I): wherein each of the substituents is given the definition as set forth in the Specification and claims. Also disclosed are the preparation process of the derivatives, and their uses as a photoinitiator in photopolymerizable compositions.
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- Novel alpha-aminoacetophenones as photoinitiators
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Compounds of the formula I, II, III and IIIa STR1 in which Ar1 is an unsubstituted or substituted aromatic radical and at least one of the radicals R1 and R2 is an alkenyl, cycloalkenyl or arylmethyl group, are effective photoinitiators for photopolymerization of unsaturated compounds. They are particularly suitable for photocuring of pigmented systems.
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