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    • 3. 发明申请
    • POLYMERIZABLE COMPOSITIONS CONTAINING ETHYLENICALLY UNSATURATED MONOMERS HAVING EPISULFIDE FUNCTIONAL GROUPS AND RELATED METHODS
    • 含有乙酰辅酶官能团的乙烯单元的聚合物组合物及相关方法
    • US20130225777A1
    • 2013-08-29
    • US13864785
    • 2013-04-17
    • Charles R. HickenbothFederico MentaNina V. Bojkova
    • Charles R. HickenbothFederico MentaNina V. Bojkova
    • C08G75/00
    • C08G75/00C08F220/38C08F222/1006G02B1/04C08L33/14C08L81/02
    • Provided is a polymerizable composition of (a) a monomer composition including ethylenically unsaturated monomer having a β-epithiopropyl functional group; (b) optionally, a compound having two or more β-epithiopropyl functional groups but no polymerizable ethylenically unsaturated groups; (c) an isourea functional polymerization initiator; and (d) a catalyst for reaction between the β-epithiopropyl functional groups. Also provided is a method of reducing the yellowness index of a sulfur-containing polymerizate prepared by addition polymerization, the method including reacting in the presence of an isourea functional polymerization initiator and a catalyst for reaction between β-epithiopropyl functional groups, a polymerizable composition of: (a) a monomer composition including ethylenically unsaturated monomer having a β-epithiopropyl functional group; and, optionally, (b) a compound having two or more β-epithiopropyl functional groups but no polymerizable ethylenically unsaturated groups.
    • 提供(a)包含具有β-环硫丙基官能团的烯属不饱和单体的单体组合物的可聚合组合物; (b)任选的具有两个或更多个β-环硫丙基官能团但不具有可聚合的烯属不饱和基团的化合物; (c)异脲官能聚合引发剂; 和(d)β-环硫丙基官能团之间的反应催化剂。 还提供了降低通过加成聚合制备的含硫聚合物的黄度指数的方法,该方法包括在异脲官能聚合引发剂和用于β-环硫丙基官能团之间反应的催化剂存在下反应的方法, :(a)包含具有β-环硫丙基官能团的烯属不饱和单体的单体组合物; 和(b)具有两个或多个β-环硫丙基官能团但不具有可聚合烯属不饱和基团的化合物。