Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-01-14
2009-10-13
Cheung, William K (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S333000, C526S317100, C526S346000
Reexamination Certificate
active
07601790
ABSTRACT:
An amphiphilic block copolymer having an ionic functional group, wherein the ratio (N10/N5) of a rotational viscosity (N10) of a 10% by mass solution of the copolymer in purified water to a rotational viscosity (N5) of a 5% by mass solution of the copolymer in purified water is 2.5 or lower.
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Sadahito Aoshima et al., “Living Cationic Polymerization of Vinyl Monomers by Organoaluminium Halides”, Polymer Bulletin, vol. 15, pp. 417-423 (1986).
Higashi Ryuji
Ikegami Masayuki
Nakazawa Ikuo
Okada Takeshi
Sato Koichi
Canon Kabushiki Kaisha
Cheung William K
Fitzpatrick ,Cella, Harper & Scinto
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