Compositions – Fire retarding – For solid synthetic polymer and reactants thereof
Reexamination Certificate
2007-08-21
2007-08-21
Szekely, Peter (Department: 1714)
Compositions
Fire retarding
For solid synthetic polymer and reactants thereof
C560S079000, C560S083000, C560S091000, C560S092000, C560S093000, C560S098000
Reexamination Certificate
active
10849680
ABSTRACT:
Flame retardant formulations comprised of at least one bromine-containing polyol are produced by a process which comprises:A) heating a mixture formed from components comprised of (i) tetrabromophthalic anhydride, (ii) at least one aliphatic polyol, and (iii) at least one liquid straight chain aliphatic diester of a straight-chain alkane dicarboxylic acid to form an intermediate composition; andB) contacting all or a portion of the intermediate composition one or more times with (iv) at least one alkylene oxide that results in the formation of a liquid product formulation, and optionally, removing any excess alkylene oxide present;the amounts of (i), (ii), (iii), and (iv) used being proportioned to form a formulation having a bromine content of at least about 40 wt %, a viscosity at 25° C. of about 20,000 cps or less, and an acid number as determinable by aqueous sodium hydroxide titration and expressed in terms of potassium hydroxide, of less than about 1 milligram of KOH per gram of the formulation.
REFERENCES:
patent: 3089863 (1963-05-01), Hicks et al.
patent: 3374208 (1968-03-01), Selner et al.
patent: 3455886 (1969-07-01), Versnel
patent: 3519700 (1970-07-01), Baum
patent: 3585185 (1971-06-01), Levis, Jr. et al.
patent: 3624724 (1971-11-01), Schmidt et al.
patent: 3676376 (1972-07-01), Svoboda et al.
patent: 3875183 (1975-04-01), Papa et al.
patent: 3929866 (1975-12-01), Baldino et al.
patent: 3974109 (1976-08-01), Papa et al.
patent: 3989653 (1976-11-01), Baldino et al.
patent: 4069212 (1978-01-01), Fletcher et al.
patent: 4098704 (1978-07-01), Sandler
patent: 4144395 (1979-03-01), Murphy et al.
patent: 4209609 (1980-06-01), Haas
patent: 4264745 (1981-04-01), Foucht
patent: 4303767 (1981-12-01), Newkirk et al.
patent: 4307205 (1981-12-01), Bershas
patent: 4405725 (1983-09-01), Bernard et al.
patent: 4468481 (1984-08-01), Barda et al.
patent: 4468482 (1984-08-01), Barda et al.
patent: 4564697 (1986-01-01), Sutker
patent: 4764550 (1988-08-01), Lovenguth
patent: 4912158 (1990-03-01), Bohen et al.
patent: 4923916 (1990-05-01), Bohen et al.
patent: 4923917 (1990-05-01), Bohen
patent: 4938894 (1990-07-01), Bohen et al.
patent: 4954542 (1990-09-01), Bohen et al.
patent: 5049697 (1991-09-01), Bohen et al.
patent: 5102919 (1992-04-01), Swab
patent: 5102923 (1992-04-01), Porosoff et al.
patent: 5114985 (1992-05-01), Kuyzin et al.
patent: 5332859 (1994-07-01), Tarbit
patent: 5907014 (1999-05-01), Quint
patent: 6218074 (2001-04-01), Dueber et al.
patent: 0386406 (1995-05-01), None
patent: 2034726 (1980-06-01), None
patent: WO 03060000 (2003-07-01), None
Encyclopedia of Polymer Science and Technology, vol. 11, Plastics, Resins, Rubbers, Fibers, John Wiley & Sons, Inc., 1969, pp. 506-563.
Encyclopedia of Polymer Science and Technology, vol. 15, Plastics, Resins, Rubbers, Fibers, John Wiley & Sons, Inc., 1969, pp. 445-479.
Pape, Peter G, et al., “Tetrabromophthalic Anhydride in Flame-Retardant Urethane Foams”, Journal of Cellular Plastics, Nov. 1968, pp. 438-442.
Aplin Jeffrey Todd
Clark Nelson E.
Feske Elbert F.
Mack Arthur G.
Albemarle Corporation
Kliebert Jeremy J.
Szekely Peter
LandOfFree
Flame retardants with high halogen content and low viscosity does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flame retardants with high halogen content and low viscosity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flame retardants with high halogen content and low viscosity will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3832374