Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate
2007-08-21
2007-08-21
Oh, Taylor Victor (Department: 1625)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
C528S198000
Reexamination Certificate
active
10802705
ABSTRACT:
A process for the production of polycarbonate having increased end-cap levels, the process comprising adding a terminal blocking agent of the formula:wherein R1is a propoxy or butoxy and R2is selected from the group consisting of C1-C30alkyl, C1-C30alkoxy, C6-C30aryl, C7-C30aralkyl, and C6-C30aryloxy.
REFERENCES:
patent: 3442854 (1969-05-01), Curtius et al.
patent: 5026817 (1991-06-01), Sakashita et al.
patent: 5097002 (1992-03-01), Sakashita et al.
patent: 5142018 (1992-08-01), Sakashita et al.
patent: 5151491 (1992-09-01), Sakashita et al.
patent: 5283285 (1994-02-01), Akkapeddi et al.
patent: 5340905 (1994-08-01), Kuhling et al.
patent: 5696222 (1997-12-01), Kaneko et al.
patent: 6022943 (2000-02-01), Inoue et al.
patent: 6252036 (2001-06-01), Hatono et al.
patent: 2002/0128425 (2002-09-01), Brack et al.
patent: 2003/0120025 (2003-06-01), Brack et al.
patent: 764 673 (1997-03-01), None
patent: 980861 (2000-02-01), None
patent: 985696 (2000-03-01), None
patent: 2153925 (1990-06-01), None
patent: 6157739 (1994-06-01), None
patent: 7090074 (1995-04-01), None
Brack Hans Peter
Cella James Anthony
Karlik Dennis
Prada Lina
General Electric Company
Marina Larson & Associates LLC
Oh Taylor Victor
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