Title:
局所的にグラフトされたネットワークを含有する眼科用装置並びにその調製及び使用プロセス
Document Type and Number:
Japanese Patent JP7358390
Kind Code:
B2
Abstract:
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.
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Inventors:
Scales Charles W
WOOD, Joe M.
Widman Michael F
WOOD, Joe M.
Widman Michael F
Application Number:
JP2020561957A
Publication Date:
October 10, 2023
Filing Date:
January 18, 2019
Export Citation:
Assignee:
Johnson & Johnson Vision Care, Inc.
International Classes:
G02C7/04; C08F2/50; C08F271/02
Domestic Patent References:
| JP4235204B2 | ||||
| JP2006072358A | ||||
| JP2015500913A | ||||
| JP2009223158A |
Foreign References:
| WO2017106322A1 |
Attorney, Agent or Firm:
Kiminobu Kato
Takafumi Oshima
Takafumi Oshima