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Unsaturated urethane (meth) acrylate compound, a method for producing an unsaturated urethane (meth) acrylate polymer composition and its cured product
Unsaturated urethane (meth) acrylate compound, a method for producing an unsaturated urethane (meth) acrylate polymer composition and its cured product
PROBLEM TO BE SOLVED: To obtain a compound having a high rate of polymerization and giving a molding having excellent heat resistance and toughness by reacting a (meth)acrylic acid oligoester obtained by reacting (meth)acrylic acid and/or a hydroxyalkyl (meth)acrylate with fumaric acid and a polyhydric alcohol component with a polyisocyanate compound. SOLUTION: The unsaturated urethane (meth)acrylate compound contains at least one fumarate group and at least one urethane bond in at least two branches extending from the organic group and is terminated with a (meth) acrylate group. A compound having such a structure is represented by formula I (R1 is H or methyl; R2 and R3 are each a divalent organic group; R4 is an n-valent organic group; and n is 2 or greater). Desirably R2 is any one of formulas II to VI. The terminal (meth)acrylate group acts as a crosslinking site when the compound is copolymerized with various polymerizable monomers.
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机译：解决的问题：通过使通过使（甲基）丙烯酸和/或羟烷基（甲基）反应获得的（甲基）丙烯酸低聚酯进行反应，获得具有高聚合速率并且提供具有优异的耐热性和韧性的模制品的化合物。具有富马酸的丙烯酸酯和具有多异氰酸酯化合物的多元醇组分。解决方案：不饱和氨基甲酸酯（甲基）丙烯酸酯化合物在从有机基团延伸的至少两个分支中包含至少一个富马酸酯基团和至少一个氨基甲酸酯键，并以（甲基）丙烯酸酯基团封端。具有这种结构的化合物由式I表示（R 1为H或甲基; R 2和R 3各自为二价有机基团; R 4为n价有机基团;并且n为2以上）。理想地，R 2为式II至VI中的任何一种。当化合物与各种可聚合单体共聚时，末端（甲基）丙烯酸酯基团充当交联位点。
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