Patent · US Expired

Polyfunctional thiirane compounds

US6631021B2 · kind B2 · utility

26Cited by

38References

16Claims

0Family size

Assignee

PPG Industries Ohio, Inc. · US

Inventors

Robert A. Smith · Murrysville, US
Michael O. Okoroafor · Export, US
Marvin J. Graham · Monroeville, US

Key dates

Filing date	Feb 28, 2001
Grant date	Oct 7, 2003
Priority date	—
Expiry date	Apr 28, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D331/02
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Describes novel polyfunctional thiiranes. Also described are polymerizable compositions comprising such novel polyfunctional thiiranes, and polymerizates, e.g., optical lenses, prepared therefrom. The described polymerizates may have a refractive index of at least 1.6, and an Abbe number of at least 27.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.