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
2005-06-07
2005-06-07
Robertson, Jeffrey B. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S331900, C525S386000, C525S387000, C525S902000
Reexamination Certificate
active
06903164
ABSTRACT:
An epoxidized granular thermoplastic polymer which comprises a shell-like surface layer insoluble in toluene at 25° C. is formed on the polymer, and a process for the production of the epoxidized granular thermoplastic polymer characterized in that the process comprises: the first step of epoxidizing a granular thermoplastic polymer in a water medium in the presence of an epoxidizing agent or the epoxidizing agent and a solvent for accelerating an epoxidation reaction and a phosphoric acid series compound; the second step of the washing with water, or the neutralization and washing with water of the epoxidized granular thermoplastic polymer; and the third step, if necessary, of removing the solvent for accelerating epoxidation reaction which may be used in the first step, as well as a process for the production of an epoxidized thermoplastic polymer, characterized in that under the condition in which thermoplastic polymer (A) in the solid-state is dispersed or suspended in water (B), the thermoplastic polymer (A) is epoxidized by a peroxide (C) with the dispersed or suspended state maintained.
REFERENCES:
patent: 4131725 (1978-12-01), Udipi
patent: 6031054 (2000-02-01), Takai
patent: 0 498 426 (1992-08-01), None
patent: 0 658 603 (1995-06-01), None
patent: 8-104709 (1996-04-01), None
patent: 8-120022 (1996-05-01), None
patent: 9-67502 (1997-03-01), None
patent: 9-95512 (1997-04-01), None
patent: 9-165418 (1997-06-01), None
patent: 9-208617 (1997-08-01), None
patent: 10-316715 (1998-12-01), None
patent: 11-292927 (1999-10-01), None
patent: 2000-44798 (2000-02-01), None
patent: 2001-48921 (2001-02-01), None
patent: 2001-278913 (2001-10-01), None
Machine Translation of JP 2001-048921, Miki, Feb. 2001, obtained from JPO website.
Machine Translation of JP 2001-278913, Takai, Oct. 2001, obtained from JPO website.
Machine Translation of JP 2001-048921, Mihara, Nov. 1998, obtained from JPO website.
Ohtsuka Yoshihiro
Watanabe Nobuyuki
Yabui Akihiro
Daicel Chemical Industries Ltd.
Morgan & Finnegan , LLP
Robertson Jeffrey B.
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