Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1996-12-04
1998-06-02
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525404, 525405, 525406, 525407, 525408, 525409, 528 73, 528105, 528104, 528250, 528327, 528366, 528374, 528376, 528393, 528405, 528407, 528420, 528421, C08G 6508
Patent
active
057601429
ABSTRACT:
Epoxide-amine dendrimers synthesized by a repetitive and step-wise addition reaction of epoxides comprising functional moieties which are available for conversion into amino groups followed by a reaction of these groups to primary amino moieties. The amino terminated dendrimers are reacted with (2,3-epoxypropoxy) methacrylate, a monoepoxide and/or a monoisocyante. The methacrylate terminated dendrimers are polymerizable using redox initiators and/or photoinitiators. The resulting dendrimers show a very low volume shrinkage from that of the starting materials, on the order of less than about 5 percent by volume.
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Bieber James B.
Dentsply DeTrey G.m.b.H.
Hura Douglas J.
Krass Frederick
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