Method for producing ditrimethylolpropane

Details Method for producing ditrimethylolpropane Method for producing ditrimethylolpropane

2006-12-19

2009-06-30

Keys, Rosalynd (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S699000

Reexamination Certificate

active

07553994

ABSTRACT:
In the method of producing ditrimethylolpropane of the present invention, the distillation still residue obtained in the production of trimethylolpropane is subjected to crystallizing treatment while strictly regulating the amount of organic solvent to be used, the crystallization temperature and the crystallization time within the specific ranges. With the method of the present invention, a highly pure di-TMP is obtained only by a single operation of the crystallization.

REFERENCES:
patent: 3740322 (1973-06-01), Wada et al.
patent: 3829507 (1974-08-01), Zey
patent: 2002/0033325 (2002-03-01), Ninomiya et al.
patent: 1178030 (2002-02-01), None
patent: 1292405 (1972-10-01), None
patent: 2002-047231 (2002-02-01), None
patent: 2002-047232 (2002-02-01), None
Communication and European Search Report dated Dec. 11, 2004, for No. EP 04 01 3343.

Affiliated with

Also associated with

Rating

Method for producing ditrimethylolpropane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing ditrimethylolpropane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing ditrimethylolpropane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4080226