Method For Producing Resin For Optical Material

Abstract: Disclosed is a method for adequately producing a high-performance optical material (such as a lens) composed of a polyurethane resin, which optical material is clear and colorless, while having no strain. In this method, the optical material is produced without causing cord or white turbidity by polymerizing a polymerizable composition characterized by containing 10-300 ppm of moisture and composed of a polythiol compound and a polyiso(thio )cyanate compound.

Patent Information

Application #

Filing Date

19 May 2014

Publication Number

35/2016

Publication Type

INA

Invention Field

POLYMER TECHNOLOGY

Status

Email

lsdavar@ca12.vsnl.net.in

Parent Application

Applicants

MITSUI CHEMICALS, INC.

5-2, Higashi-Shimbashi 1-chome, Minato-ku, Tokyo 105-7117, Japan

Inventors

1. KAWAGUCHI, Masaru

c/o Mitsui Chemicals, Inc., 5-2, Higashi-Shimbashi 1-chome, Minato-ku, Tokyo 1057117, JAPAN

2. KUMA, Shigetoshi

c/o Mitsui Chemicals, Inc., 30, Asamutacho, Omuta-shi, Fukuoka 8368610, JAPAN

3. TANAKA, Mamoru

c/o Mitsui Chemicals, Inc., 30, Asamutacho, Omuta-shi, Fukuoka 8368610, JAPAN

4. KOBAYASHI, Seiichi

c/o Mitsui Chemicals, Inc., 30, Asamutacho, Omuta-shi, Fukuoka 8368610, JAPAN

Specification

CLIAMS:Please find the attached file ,TagSPECI:Please find the attached file

Documents

Application Documents

#	Name	Date
1	F2.pdf	2014-05-22
2	1051-KOLNP-2014-(05-11-2014)-FORM-1.pdf	2014-11-05
3	1051-KOLNP-2014-(03-08-2015)-CORRESPONDENCE.pdf	2015-08-03
4	1051-KOLNP-2014-(03-08-2015)-ANNEXURE TO FORM 3.pdf	2015-08-03
5	1051-KOLNP-2014-(03-09-2015)-CORRESPONDENCE.pdf	2015-09-03
6	1051-KOLNP-2014-(03-09-2015)-ANNEXURE TO FORM 3.pdf	2015-09-03
7	1051-KOLNP-2014-FER.pdf	2018-06-29
8	1051-KOLNP-2014-AbandonedLetter.pdf	2024-06-18

Search Strategy

1	TACD_29-06-2018.pdf