Process of producing dioxane glycol

Details Process of producing dioxane glycol Process of producing dioxane glycol

2006-10-04

2008-11-25

Dentz, Bernard (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07456300

ABSTRACT:
A process of producing 2-(5-ethyl-5-hydroxymethyl-1,3-dioxane-2-yl)-2-methylpropane-1-ol (DOG) by the acetalization of hydroxypivalaldehyde with trimethylolpropane in water in the presence of an acid catalyst and optional seed crystals. DOG crystals having an increased particle size and containing the trans isomer in a high content are produced by the process in which the reaction temperature, pH of the reaction system and concentration of DOG to be produced in the reaction system are controlled.

REFERENCES:
patent: 2945008 (1960-07-01), Caldwell et al.
patent: 59 134788 (1984-08-01), None
Galiano, F.R., et al.; “Formation of 1, 3-Dioxanes in Water” Journal of Organic Chemistry, vol. 29, No. 11, 1964, pp. 3424-3426.
Extended European Search Report for EP 06121253.6, mailed Jan. 30, 2007.

Affiliated with

Also associated with

Rating

Process of producing dioxane glycol does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4033830