Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-10-24
2008-03-04
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S348200, C526S348300, C526S348400, C526S348500, C526S348600, C526S352200, C528S396000
Reexamination Certificate
active
07339019
ABSTRACT:
A copolymer having monomer units derived from ethylene and monomer units derived from an α-olefin of 3 to 20 carbon atoms, a density of 906 to 970 kg/m3and an activation energy of flow of 50 kJ/mol or more, and satisfying specific relations among a melt complex viscosity, a melt flow rate and a characteristic relaxation time.
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Iseki Yuki
Nagamatsu Tatsuhiro
Yamada Katsuhiro
Fitch Even Tabin & Flannery
Lee Rip A.
Sumitomo Chemical Company Ltd.
Wu David W.
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