Thiol and sulfur-containing O-(meth)acrylate compounds and use thereof
US6369269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2001 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | May 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/041
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A sulfur-containing O-(meth)acrylate compound of the following formula (1) is useful as a starting material for a resin composition used in optical applications such as a lens; wherein R represents hydrogen atom or methyl group; 1 represents an integer from 1 to 3; B is when B is  n is 2; m is 1 or 2; A is selected from the following groups: wherein m represents 1 or 2; each ring may be substituted by one or more alkyl, alkylthio or alkoxy groups having 1 or 2 carbon atoms; p and q are 0 or 1, while m is 1 when p is 1;when B is  n is 1; m is 2 or 3; A is selected from the following groups:—(CH2)r—S—(CH2)r—, —(CH2)r—S—S—(CH2)r—. —(CH2)r—S—(CH2)s—S—(CH2)r—andandwherein r and s are an integer from 1 to 3; when B is  n is 1; m is 2; A is selected from the following groups:—(CH2)r—S—(CH2)r—, —CH2)r—S—S—(CH2)rand—(CH2)r—S—(CH2)s—S—(CH2)r—wherein r and s are an integer from 1 to 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.