Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2007-07-10
2007-07-10
Yoon, Tae H (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C528S271000, C523S113000, C433S228100
Reexamination Certificate
active
10452269
ABSTRACT:
A low shrinkage, polymerizable oligomer comprises units of the structure:in-line-formulae description="In-line Formulae" end="lead"?AB (I)in-line-formulae description="In-line Formulae" end="tail"?wherein A is an organic radical comprising 1 to about 6 (meth)acrylate groups and 0 to about 5 hydroxy groups; B is an organic radical comprising 1 to about 5 epoxide groups, and wherein A and B are linked through the reaction of an epoxide and a hydroxy group. In one embodiment, a dental restorative material comprises the low shrinkage, polymerizable dental oligomer, a filler system, and a curing system. These polymerizable dental resins may be used for a variety of dental materials, treatments, and restorative functions, including crown and bridge materials, fillings, adhesives, sealants, luting agents or cements, denture base materials, orthodontic materials and sealants, and other dental restorative materials.
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Jia Weitao
Jin Shuhua
Pentron Clinical Technologies LLC
Yoon Tae H
LandOfFree
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