Title:
METHOD FOR PRODUCING OPTICAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2019/189825
Kind Code:
A1
Abstract:
Provided are: a method for producing an optical member, the method including a step for polymerizing a polymerizable composition that contains a polythiol component and a polyisocyanate component in a molding die, wherein the molding die is equipped with a pair of molds and a tape for separating and securing the molds, the tape has a tape base material and an adhesive layer, and the water content in the adhesive layer is 950 mass ppm or less; and a molding die tape for an eyeglass lens base material, the tape having a tape base material and an adhesive layer, and the water content of the adhesive layer being 950 mass ppm or less.
Inventors:
SANO YOSHIO (JP)
Application Number:
PCT/JP2019/014177
Publication Date:
October 03, 2019
Filing Date:
March 29, 2019
Export Citation:
Assignee:
HOYA LENS THAILAND LTD (TH)
SANO YOSHIO (JP)
SANO YOSHIO (JP)
International Classes:
B29D11/00; G02B3/00; G02C7/02; G02C13/00
Domestic Patent References:
| WO2016009778A1 | 2016-01-21 |
Foreign References:
| JP2001353734A | 2001-12-25 | |||
| JPH10128861A | 1998-05-19 |
Other References:
See also references of EP 3778203A4
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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