Hard transparent resins and process for the production thereof
US5104953A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1989 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Jun 6, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a process for preparing a hard transparent resin comprising polymerizing a monomer (A) having both a functional group of the following formula (I): ##STR1## wherein X is selected from the group consisting of an oxygen atom and a sulfur atom, and a functional group selected from the group consisting of a functional group of the formula (II): EQU CH.sub.2 CR--COO-- (II) PA0 wherein R is selected from the group consisting of hydrogen and methyl group, and a functional group of the formula (III): ##STR2## The invention also provides a process for preparing a transparent resin comprising copolymerizing monomer (A) with a monomer (B) having at least one functional group selected from the group consisting of EQU CH.sub.2 .dbd.CHCOO--, EQU CH.sub.2 .dbd.C(CH.sub.3)--COO--, and ##STR3## This resin can be suitably used as a glazing material, and in the manufacture of optical lenses, optical information recording medium substrates, etc. It has a crosslinked structure, high surface hardness, and may be easily polymerized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.