Radical-cationic hybrid photocurable composition and photosensitive resist dry film
A hybrid light curing and free radical technology, applied in photosensitive materials, optics, and optomechanical equipment for optomechanical equipment, etc., can solve the problems of human body damage, ozone pollution environment, serious light intensity attenuation, etc., to overcome imaging problems. The difference, high light sensitivity, small human body damage effect
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[0233] The following examples illustrate the present invention in detail, but the present invention is not limited to these examples. In addition, in the following, unless otherwise specified, "part" means a weight part.
[0234] (A) Alkali-soluble polymer
[0235] Synthetic example
preparation example 1
[0236] Preparation Example 1: Polymer A1
[0237] In a 500mL flask equipped with a stirrer, a reflux condenser, a thermometer, a dropping funnel, and a nitrogen inlet tube, add 100g of methyl ethyl ketone as a solvent, then add 30g of polymerizable monomer methacrylic acid, Styrene 30g, butyl methacrylate 40g, under nitrogen atmosphere, slowly add initiator azobisisobutyronitrile 0.8g while stirring, insulate while stirring at 80 ℃ for 10 hours, cool, obtain as (A) The alkali-soluble polymer solution of the components was prepared to have a non-volatile component concentration (solid component concentration) of 50% by weight.
preparation example 2-4
[0238] Preparations 2-4: Polymers A2, A3 and A4
[0239] Alkali-soluble polymers A2, A3, and A4 were obtained in the same manner as in obtaining the alkali-soluble polymer A1, except that the weight ratios shown in Table 1 were used as polymerizable monomers.
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