Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Reexamination Certificate
2011-01-25
2011-01-25
Berman, Susan W (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
C522S089000, C522S188000
Reexamination Certificate
active
07875659
ABSTRACT:
This invention provides a water-soluble macromonomer having terminal unsaturation obtained by polymerization of monomers in the presence of inclusion complex of chain transfer agent in aqueous system. Hydrophobic chain transfer agent AMSD forms an inclusion complex with methylated cyclodextrin. The complexation enhances its solubility in water and enables the polymerization of water-soluble monomers in aqueous medium. After polymerization cyclodextrin is removed and the macromer with terminal unsaturation obtained can be used further for copolymerization with any vinyl monomer.
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Kulkarni Mohan Gopalkrishna
Patil Prerana Maruti
Berman Susan W
Council of Scientific and Industrial Research
Ladas & Parry LLP
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