Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2011-08-02
2011-08-02
Lipman, Bernard (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S800000, C524S801000, C524S802000, C524S804000, C524S812000, C524S819000, C524S821000, C524S822000, C524S823000, C524S824000, C524S832000, C524S833000, C524S845000, C524S846000, C424S451000
Reexamination Certificate
active
07989544
ABSTRACT:
Polymer capsules from amphiphilic graft copolymers comprising reactive, hydrophobic polyolefin backbones, and hydrophilic poly(ethylene glycol) (PEG) grafts are produced by self-assembly of the polymers at the oil-water interface, and crosslinking the assembly with bis-cyclooctene PEG derivatives in conjunction with ring-open metathesis polymerization catalysts. The use of the graft copolymer architecture in capsule synthesis provides significant opportunities to tune both the surface properties, in terms of recognition, and the membrane properties, in terms of mechanical strength, encapsulation, and release.
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Breitenkamp Kurt
Emrick Todd S.
Lipman Bernard
Reinhart Boerner Van Deuren s.c.
University of Massachusetts
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