Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-01-17
2006-01-17
Seidleck, James J. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S098000, C525S332900, C525S333100, C525S316000
Reexamination Certificate
active
06987145
ABSTRACT:
Disclosed is a hetero-branched radial block copolymer suitable as a base polymer of pressure-sensitive adhesives, the hetero-branched radial block having a hetero-branched structure comprised of polystyrene, polyisoprene, and polybutadiene blocks and being represented byin-line-formulae description="In-line Formulae" end="lead"?(pS-pI)3X-(pB-pI-pS)in-line-formulae description="In-line Formulae" end="tail"?wherein pS is polystyrene; pI is polyisoprene; pB is polybutadiene; and X is a residue of a tetravalent coupling agent.
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Choi Dai-Seung
Kang Tae-Yi
Kim Hak-Kyung
Kim Jong-Geun
Kim Sam-Min
Asinovsky Olga
Dilworth & Barrese LLP
Korea Kumho Petrochemical Co. Ltd.
Seidleck James J.
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