Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Reexamination Certificate
2007-08-17
2011-10-11
Puttlitz, Karl J (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C570S184000, C570S206000
Reexamination Certificate
active
08034986
ABSTRACT:
Solid-state highly brominated compounds such as solid brominated flame retardants with bromine contents of at least about 60 wt % often contain occluded bromine. Because of their high bromine contents, such compounds have relatively low solubility in common organic solvents. Despite this low solubility, the content of occluded bromine in such solid brominated compounds is effectively reduced by agitating a concentrated agitated slurry of the compound in an inert solvent at a suitable temperature for at least about 1 hour. Thereafter, solids with reduced content of occluded bromine are isolated or recovered from the slurry. Novel products having substantially reduced or eliminated occluded bromine contents and other very desirable characteristics are also provided.
REFERENCES:
patent: 3752856 (1973-08-01), Nagy et at.
patent: 3965197 (1976-06-01), Stepniczka
patent: 4847428 (1989-07-01), Gu
patent: 5008477 (1991-04-01), Hussain
patent: 5030778 (1991-07-01), Ransford
patent: 5077334 (1991-12-01), Hussain
patent: 5124496 (1992-06-01), Templeton et al.
patent: 5302768 (1994-04-01), Hussain
patent: 5324874 (1994-06-01), Ransford et al.
patent: 5401890 (1995-03-01), Parks
patent: 5457248 (1995-10-01), Mack et al.
patent: 5741949 (1998-04-01), Mack
patent: 6008283 (1999-12-01), Rose et al.
patent: 6518468 (2003-02-01), Parks et al.
patent: 6603049 (2003-08-01), Parks et al.
patent: 6768033 (2004-07-01), Parks et al.
patent: 6841702 (2005-01-01), Magdolen et al.
patent: 6958423 (2005-10-01), Parks et al.
patent: 6974887 (2005-12-01), Parks et al.
patent: 7129385 (2006-10-01), Dawson et al.
patent: 2003/0144563 (2003-07-01), Falloon et al.
patent: 2004/0110996 (2004-06-01), Parks et al.
patent: 2094469 (2005-09-01), None
patent: 1429800 (2003-07-01), None
patent: 2400455 (1975-02-01), None
patent: 2950877 (1981-06-01), None
patent: 3326343 (1985-01-01), None
patent: 0107978 (1984-05-01), None
patent: 0347116 (1989-12-01), None
patent: 0445595 (1991-09-01), None
patent: 0571859 (1993-12-01), None
patent: 981833 (1965-01-01), None
patent: 1411524 (1975-10-01), None
patent: 2143521 (1985-02-01), None
patent: 50018430 (1975-02-01), None
patent: 52039639 (1977-03-01), None
patent: 52139033 (1977-11-01), None
patent: 53053629 (1978-05-01), None
patent: 53116332 (1978-10-01), None
patent: 54044623 (1979-04-01), None
patent: 58222043 (1983-12-01), None
patent: 62004241 (1987-01-01), None
patent: 10158202 (1998-06-01), None
patent: 10175893 (1998-06-01), None
patent: WO 93/24434 (1993-12-01), None
patent: WO 94/22978 (1994-10-01), None
patent: WO 03/055832 (2003-07-01), None
Yang, Ze-hui, et al., “Technological Progress in Catalytic Synthesis of Decabromodiphenyl Ether by Brominating Diphenyl Oxide with Bromine Chloride”, Fine Chemicals, vol. 19, Jan. 2002, pp. 42-44, abstract only translated.
Albemarle Corporation, XP002458574, Saytex 8010 Flame Retardant, Brochure, 2001, 2 pages.
Hussain Saadat
Mack Arthur G.
Albemarle Corporation
Kliebert Jeremy J.
Puttlitz Karl J
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