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含局部接枝網狀物之眼用裝置及其製備方法與用途
专利权人:
JOHNSON & JOHNSON VISION CARE; INC.
发明人:
SCALES, CHARLES W.,史考斯 查理斯,史考斯 查理斯,WOOD, JOE M.,伍德 乔,伍德 喬,WIDMAN, MICHAEL F.,维得曼 麦克,維得曼 麥克
申请号:
TW108103048
公开号:
TW201938650A
申请日:
2019.01.28
申请国别(地区):
TW
年份:
2019
代理人:
摘要:
Provided are polymer compositions made by a process comprising: (a) providing a first reactive composition containing: (i) a polymerization initiator that is capable, upon a first activation, of forming two or more free radical groups, at least one of which is further activatable by subsequent activation; (ii) one or more ethylenically unsaturated compounds; and (iii) a crosslinker; (b) subjecting the first reactive composition to a first activation step such that the first reactive composition polymerizes therein to form a crosslinked substrate network containing a covalently bound activatable free radical initiator; (c) contacting the crosslinked substrate network with a grafting composition containing one or more ethylenically unsaturated compounds, wherein the contacting is conducted under conditions such that the grafting composition penetrates into the crosslinked substrate network; and (d) activating the covalently bound activatable free radical initiator at one or more selective regions of the crosslinked substrate network such that the grafting composition polymerizes with the crosslinked substrate network at the selective regions.所提供者為聚合物組成物,其等係藉由包含以下之方法製成:(a)提供第一反應性組成物,其含有:(i)聚合起始劑,其能夠在第一活化時形成二或更多個自由基,該等自由基中之至少一者可藉由後續活化進一步活化;(ii)一或多種乙烯系不飽和化合物;及(iii)交聯劑;(b)使該第一反應性組成物經歷第一活化步驟,使得該第一反應性組成物在其中聚合以形成交聯基材網狀物,該交聯基材網狀物含有共價鍵結可活化自由基起始劑;(c)使該交聯基材網狀物與含有一或多種乙烯系不飽和化合物之接枝組成物接觸,其中該接觸係在會達成下列者之條件下進行:使得該接枝組成物滲入該交聯基材網狀物;以及(d)於該交聯基材網狀物的一或多個選擇性區域活化該共價鍵結可活化自由基起始劑,使得該接枝組成物於該選擇性區域與該交聯基材網狀物聚合。
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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