Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From sulfur-containing reactant
Reexamination Certificate
2006-08-15
2006-08-15
Robertson, Jeffrey B. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From sulfur-containing reactant
C528S378000, C528S380000, C528S381000, C528S387000, C528S388000, C528S389000
Reexamination Certificate
active
07091307
ABSTRACT:
The present invention relates to a composition for optical materials, comprising (a) a compound having in one molecule at least one structure represented by the following Formula 1:wherein R1is a single bond or a C1-10hydrocarbon group, each of R2, R3and R4is a C1-10hydrocarbon group or hydrogen, Y is O, 5, Se or Te, m is 1 to 5, and n is 0 to 5; (b) a compound having in one molecule at least one isocyanate group and/or at least one isothiocyanate group; (c) a compound having in one molecule at least one mercapto group; and (d) an inorganic compound having sulfur atom and/or selenium atom, and also relates to an optical material produced by polymerization curing the composition, a production method thereof, and an optical lens comprising the optical material. The present invention provides a high refractive, high Abbe's number optical material having an improved impact resistance.
REFERENCES:
patent: 6124424 (2000-09-01), Okazaki et al.
patent: 6130307 (2000-10-01), Amagai et al.
patent: 6444146 (2002-09-01), Yoshimura et al.
patent: 6472495 (2002-10-01), Yoshimura et al.
patent: 6531532 (2003-03-01), Yoshimura et al.
patent: 6534589 (2003-03-01), Yoshimura et al.
patent: 2004/0026658 (2004-02-01), Yoshimura et al.
patent: 785194 (1997-07-01), None
patent: 1 046 931 (2000-10-01), None
patent: 1 319 966 (2003-06-01), None
Supplementary European Search Report mailed Apr. 5, 2004, for EP No. 01 97 4784.
Horikoshi Hiroshi
Takeuchi Motoharu
Yoshimura Yuichi
Antonelli, Terry Stout and Kraus, LLP.
Mitsubishi Gas Chemical Company Inc.
Robertson Jeffrey B.
LandOfFree
Composition for optical material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composition for optical material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition for optical material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3701953