Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2003-12-19
2010-06-08
Cain, Edward J (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C549S029000, C549S030000, C549S031000, C549S032000, C549S035000, C549S331000, C549S333000, C549S334000
Reexamination Certificate
active
07732507
ABSTRACT:
Spirotetrathiocarbamates (STOCs) or oxa substituted compounds (SOTOCs) of Formula I: Formula (I) or bisSTOC or bisSOTOC compounds of Formula II: Formula (II) wherein X1, X2, X3, X4, X5, X6, X7, and X8, are independently O or S; and preferably at least two and up to all four of X1, X2, X3and X4, and at least two and up to all four of X5, X6, X7, and X8are sulfur; Z is —CmR22mwherein m=1 to 4; —C(R2)2SC(R2)2—, C(R2)2SSC(R2)2—, or —C(R2)OC(R2)2; n is from 0 to 4; M is selected from CH2Cl, CH2SC(O)R1, CH2SC(S)R1, CH2S(CH2CH2S)qH wherein q is 0, 1 or 2; —CR2═CH2, —CH2OC(O)CR2═CH2, CH2N═C═S, CH2N═C═O, CH2NR2H, CH2OH, CH2SCH2CH2CR2═CH2, phenyl, C(R2)phenyl, furan, thiophene, halogen, C3-C6cycloalkyl, C3-C6heretocyclics, thiol, H, (III) or (IV) wherein A is S, O or phenyl; x is 0 or 1; R1is C1-C22alkyl; and R2is H or C1-C22alkyl have excellent optical properties. Methods for preparing these compositions and optical lenses prepared from the compounds are also provided.
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Jallouli Aref
Morgan Kimberly
Rickwood Martin
Wanigatunga Sirisoma
Cain Edward J
Essilor International "Compagnie Generale d'Optique"
Fulbright & Jaworski L.L.P.
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