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Title:
RESIN LENS AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/205294
Kind Code:
A1
Abstract:
A method for preparing a resin lens, comprising: A) mixing polyisocyanate, modified isocyanate, a catalyst and a release agent then vacuum defoaming at 0-30°C for 10-90 min to obtain material a; B) mixing the material a with a sulfur-containing compound, and vacuum defoaming at a temperature of 15-20°C for 20-120 min to obtain a mixed monomer; C) after completely pouring the mixed monomer, curing to obtain a resin lens. Further provided is a resin lens obtained by means of the preparation method.

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Inventors:
ZHANG CHAO (CN)
LIANG WANGEN (CN)
Application Number:
PCT/CN2018/094453
Publication Date:
October 31, 2019
Filing Date:
July 04, 2018
Export Citation:
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Assignee:
SHANDONG EFIRM BIOCHEMISTRY & ENVIRONMENTAL PROT CO LTD (CN)
International Classes:
C08G18/32; C08G18/38; C08G18/73; C08G18/75; G02B1/04
Foreign References:
CN105294974A2016-02-03
CN101702038A2010-05-05
CN101702039A2010-05-05
CN104379623A2015-02-25
Other References:
See also references of EP 3581600A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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