申请人:Transitions Optical, Ltd.
公开号:US11525027B2
公开(公告)日:2022-12-13
The present invention relates to a curable photochromic composition that includes: (a) a photochromic compound; and (b) a segmented polymer that includes active hydrogen groups, at least one first segment, and at least one second segment, in which, (i) each first segment independently includes a (meth)acrylic polymer segment, and (ii) each second segment independently includes at least one of, a polycarbonate segment, a polyester segment, a polyether segment, a polyurethane segment, and combinations of two or more thereof. The curable photochromic composition further includes (c) a curing agent having reactive functional groups that are reactive with the active hydrogen groups of the segmented polymer (a), in which the curing agent includes at least one of, a polyisocyanate, a polyisothiocyanate, and an aminoplast. The present invention also relates to photochromic articles that include at least one layer formed from the curable photochromic composition of the present invention.
本发明涉及一种可固化的光致变色组合物,该组合物包括(a) 光致变色化合物;和 (b) 包括活性氢基、至少一个第一段和至少一个第二段的分段聚合物,其中,(i) 每个第一段独立地包括(甲基)丙烯酸聚合物段,和 (ii) 每个第二段独立地包括聚碳酸酯段、聚酯段、聚醚段、聚氨酯段中的至少一种,以及其中两种或两种以上的组合。可固化的光致变色组合物还包括(c)具有与分段聚合物(a)的活性氢基反应的活性官能团的固化剂,其中固化剂包括多异氰酸酯、多异硫氰酸盐和氨基树脂中的至少一种。本发明还涉及光致变色物品,该物品包括至少一层由本发明的可固化光致变色组合物形成的层。