Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Reexamination Certificate
2007-09-26
2009-10-20
McClendon, Sanza L (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
C522S033000, C522S105000, C522S109000, C522S111000, C522S113000, C522S168000, C522S173000, C522S120000, C522S121000, C522S122000, C522S134000, C522S143000, C522S144000, C522S178000, C522S182000, C522S908000, C523S105000, C523S109000, C523S111000, C523S113000, C523S115000, C523S116000, C523S117000, C523S118000, C523S120000, C556S087000
Reexamination Certificate
active
07605190
ABSTRACT:
Composition with at least one polymerizable binder and at least one polymerization initiator, which contains at least one acylgermanium compound according to general Formula (I),in which R0is a substituted or unsubstituted C1-18-alkyl radical or an acyl group; R1and R2are H, an acyl group or have one of the meanings given for R3; R3is a branched or linear C1-18-alkyl radical which can be unsubstituted or substituted one or more times by —O—, —NH—, —NR—, —S— or interrupted by other groups, trimethylsilyl, hal-(CH3)2Si—[OSi(CH3)2]r−, (CH3)3Si—[OSi(CH3)2]r—, —COOH, —COO—R10, —CO—NR11R12, —CO-vinyl, —CO-phenyl, phenyl-C1-4-alkyl, phenyl, naphthyl or biphenyl, C5-12cycloalkyl, a 5 or 6-membered O, S or N-containing heterocyclic ring, halogen, OH, an aromatic C6-30radical which can be substituted or unsubstituted and/or interrupted by O, S or —NR—, or a branched, cyclic or linear C1-20alkyl, -alkenyl, -alkoxy or -alkenoxy radical; m is 1, 2 or 3; n is 0 or 1 and p is 0 or 1; wherein in each case two of the radicals R0, R1, R2or R3can be connected to each other accompanied by the formulation of a 5 to 8 member ring; and the use of acylegermanium compounds of Formula (I), for example, as initiator for radical polymerization.
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Extended European Search Report dated Aug. 22, 2008.
Fischer Urs Karl
Ganster Beate
Gruber Heinrich
Liska Robert
Moszner Norbert
Ivoclar Vivadent AG
McClendon Sanza L
Nixon & Peabody LLP
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