Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2007-05-10
2008-12-02
Teskin, Fred M (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S173000, C525S271000, C528S487000
Reexamination Certificate
active
07459507
ABSTRACT:
The present invention relates to a method for terminating anionic polymerization using phosphate ester/water mixture, more particularly to a novel method for terminating anionic polymerization using phosphate ester/water mixture as a polymerization terminator in a living polymer solution prepared by the anionic polymerization, so that the polymerization can be terminated effectively, without coupling or discoloration and with less production of basic materials that affect the antioxidant, thereby enabling control of acidity without necessitating a further neutralization process.
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Kim Sam-min
Kim Seung Il
Kim Young Jin
Ryu Ji-Eun
Bianco Paul D.
Fleit Martin
Fleit Gibbons Gutman Bongini & Bianco PL
Korea Kumho Petrochemical Co. Ltd.
Teskin Fred M
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