Diaryl alkylphosphonates and methods for preparing same

Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus esters

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07928259

ABSTRACT:
A method for preparing substantially pure optionally substituted diaryl alkylphosphonates from an optionally substituted triarylphosphite and an optionally substituted trialkylphosphite or an optionally substituted alkanol under special reaction conditions is described.

REFERENCES:
patent: 2534242 (1949-11-01), Cusic
patent: 2682522 (1954-06-01), Coover, Jr. et al.
patent: 2716101 (1955-08-01), Coover, Jr. et al.
patent: 3153008 (1964-10-01), Fox
patent: 3271329 (1966-09-01), Coover, Jr. et al.
patent: 3326852 (1967-06-01), Thomas
patent: 3442854 (1969-05-01), Curtius et al.
patent: 3932351 (1976-01-01), King
patent: 3932566 (1976-01-01), Reader
patent: 3952072 (1976-04-01), Yonemitsu et al.
patent: 4033927 (1977-07-01), Borman
patent: 4048106 (1977-09-01), Hermans
patent: 4064107 (1977-12-01), Stackman et al.
patent: 4078016 (1978-03-01), Kramer
patent: 4093582 (1978-06-01), Mark et al.
patent: 4152373 (1979-05-01), Honig
patent: 4223104 (1980-09-01), Kim et al.
patent: 4254177 (1981-03-01), Fulmer
patent: 4322520 (1982-03-01), Schmidt et al.
patent: 4328174 (1982-05-01), Schmidt et al.
patent: 4331614 (1982-05-01), Schmidt et al.
patent: 4332921 (1982-06-01), Schmidt et al.
patent: 4374971 (1983-02-01), Schmidt et al.
patent: 4377537 (1983-03-01), Block et al.
patent: 4401802 (1983-08-01), Schmidt et al.
patent: 4408033 (1983-10-01), Hefner, Jr.
patent: 4415719 (1983-11-01), Schmidt et al.
patent: 4474937 (1984-10-01), Bales
patent: 4481350 (1984-11-01), Schmidt et al.
patent: 4508890 (1985-04-01), Schmidt et al.
patent: 4594404 (1986-06-01), Kawakami et al.
patent: 4642366 (1987-02-01), Honig et al.
patent: 4719279 (1988-01-01), Kauth et al.
patent: 4736052 (1988-04-01), Nunan et al.
patent: 4762905 (1988-08-01), Schmidt et al.
patent: 4782123 (1988-11-01), Kauth et al.
patent: 5003029 (1991-03-01), Ueda et al.
patent: 5034056 (1991-07-01), VonBonin
patent: 5039775 (1991-08-01), Oyaizu
patent: 5086153 (1992-02-01), Oyaizu
patent: 5216113 (1993-06-01), Schulz-Schlitte et al.
patent: 5319058 (1994-06-01), Hattori et al.
patent: 5334692 (1994-08-01), Hess et al.
patent: 5525681 (1996-06-01), Barron et al.
patent: 5639800 (1997-06-01), VonBonin et al.
patent: 5719200 (1998-02-01), Staendeke et al.
patent: 5919844 (1999-07-01), Shimizu et al.
patent: 6066700 (2000-05-01), Konig et al.
patent: 6291630 (2001-09-01), Konig et al.
patent: 6861499 (2005-03-01), Vinciguerra
patent: 2004/0167284 (2004-08-01), Vinciguerra et al.
patent: 2005/0020800 (2005-01-01), Levchik et al.
patent: 2005/0222370 (2005-10-01), Freitag et al.
patent: 2006/0020104 (2006-01-01), Freitag
patent: 2007/0203355 (2007-08-01), Freitag et al.
patent: 2747554 (1979-04-01), None
patent: 0034239 (1981-08-01), None
patent: 0077493 (1987-03-01), None
patent: 2043083 (1980-01-01), None
patent: WO 03/029258 (2003-04-01), None
patent: WO 2004/076536 (2004-09-01), None
patent: WO 2004/076537 (2004-09-01), None
patent: WO 2007/079272 (2007-07-01), None
Yao et al., {A concise method for synthesis of diaryl aryl- or alkylphosphonates, Tetrahedron Letters (2005), Volume Date 2006, 47(3), 277-281}.
Yao et al., A concise method for the synthesis of diaryl aryl- or alkylphosphonates, 2005, Tetrahedron Lett. 47(22):277-281.
Schmidt et al., Aromatische Polyphosphonate: Thermoplastische Polymere von extremer Brandwidrigeit, 1985, Die Angewandte Makromolekulare Chemie, 132(2165):1-8.
Billmeyer, Textbook of Polymer Science, 2nded., Wiley Interscience, New York, 1971, pp. 45-52.
Legrand et al., eds., Handbook of Polycarbonates, Marcel Dekker, Inc., New York, 2000 (TOC).
Cotter et al., Engineering Plastics: A Handbook of Polyarylethers, Science Publ. S.A., Switzerland 1995 (TOC).
Groggins, Unit Processes in Organic Synthesis, 4thed., McGraw Hill Book Co., 1952, pp. 616-620.
Morgan, Condensation Polymers, Wiley Interscience, New York, 1965, pp. 217-223.
Levchik et al., Overview of Recent Developments in the Flame Retardancy of Polycarbonates, 2005, Polymer International, 54(7):981-998.
Levchik et al., Overview of Recent Developments in the Flame Retardancy of Polycarbonates, Polymer International, 54(7):981-998.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Diaryl alkylphosphonates and methods for preparing same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Diaryl alkylphosphonates and methods for preparing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diaryl alkylphosphonates and methods for preparing same will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2727040

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.