Organic compounds -- part of the class 532-570 series – Organic compounds – Carbonate esters
Reexamination Certificate
2006-08-22
2006-08-22
Lambkin, Deborah C. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbonate esters
C558S274000
Reexamination Certificate
active
07094917
ABSTRACT:
Processes for refining dialkyl carbonate-containing compositions are described, wherein a composition comprising a dialkyl carbonate is provided; and the composition is subjected to a rectification wherein low-boiling impurities are removed, and a rectification wherein high-boiling impurities are removed; and subsequently to a deodorization wherein medium-boiling impurities are removed.
REFERENCES:
patent: 2687425 (1954-08-01), Douthitt
patent: 3627810 (1971-12-01), Chang
patent: 4307032 (1981-12-01), Krimm et al.
patent: 4348536 (1982-09-01), Blahak et al.
patent: 4390463 (1983-06-01), Boden et al.
patent: 4394221 (1983-07-01), Stage et al.
patent: 4436668 (1984-03-01), Harder et al.
patent: 4599143 (1986-07-01), Stage
patent: 4655879 (1987-04-01), Brockmann et al.
patent: 4691041 (1987-09-01), Duranleau et al.
patent: 4810330 (1989-03-01), Stage
patent: 4838997 (1989-06-01), Merk
patent: 5009803 (1991-04-01), Brandolese
patent: 5076896 (1991-12-01), Carduck et al.
patent: 5132447 (1992-07-01), King, Jr.
patent: 5231212 (1993-07-01), Buysch et al.
patent: 5266716 (1993-11-01), Buysch et al.
patent: 5292917 (1994-03-01), Nishihira et al.
patent: 5338878 (1994-08-01), Pacheco et al.
patent: 5359118 (1994-10-01), Wagner et al.
patent: 5387374 (1995-02-01), Westfechtel et al.
patent: 5489703 (1996-02-01), Pacheco et al.
patent: 5543548 (1996-08-01), Landscheidt et al.
patent: 5625091 (1997-04-01), Buysch et al.
patent: 5653966 (1997-08-01), Bertoli et al.
patent: 5731453 (1998-03-01), Nishihira et al.
patent: 5834275 (1998-11-01), Raehse et al.
patent: 5834615 (1998-11-01), Nishihira et al.
patent: 5986125 (1999-11-01), Reuter et al.
patent: 6093842 (2000-07-01), Oyevaar et al.
patent: 6384262 (2002-05-01), Ofori et al.
patent: 6420589 (2002-07-01), Ofori et al.
patent: 2001/0051740 (2001-12-01), Mizukami et al.
patent: 0 089 709 (1983-09-01), None
patent: 0 393 749 (1990-10-01), None
patent: 2176713 (1987-01-01), None
patent: WO 9729170 (1997-08-01), None
patent: WO 97/47583 (1997-12-01), None
March, J., Advanced Organic Chemistry, 4th ed., Wiley & Sons, New York (1992), at p. 397, Reaction 0-23 (“Alcoholysis of Carboxylic Esters. Transesterification”).
Fieg Georg
Ridinger Richard
Yueksel Levent
Alexander Jane E.
Cognis Deutschland GmbH & Co. KG
Daniels John F.
Lambkin Deborah C.
LandOfFree
Processes for refining compositions containing dialkyl... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Processes for refining compositions containing dialkyl..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processes for refining compositions containing dialkyl... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3697528