Method of preparing polyalkylene glycol acrylates

Details Method of preparing polyalkylene glycol acrylates Method of preparing polyalkylene glycol acrylates

1975-11-10

1976-11-02

Myers, Jane S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260486H, 260615R, 260616, 260637R, C07C 6954

Patent

active

039897400

ABSTRACT:
Monomeric esters of polyalkylene glycols and .alpha., .beta.-unsaturated carboxylic acids are prepared, using a polyalkylene glycol or mono-ether derivative of an alkylene glycol or polyalkylene glycol which has a tendency to form peroxides, by heating a mixture of the glycol or derivative, a hydrocarbon solvent, and a small amount of a dilute caustic or sodium borohydride for a time and to a temperature sufficient to decompose the peroxide, and then reacting the glycol or derivative with an unsaturated acid such as acrylic acid or methacrylic acid in an inert atmosphere and in the presence of a suitable esterification catalyst and polymerization inhibitor. The crude reaction product is purified by extraction with an aqueous base, such as sodium carbonate, to remove acidic impurities and is thereafter treated with fuller's earth and decolorizing charcoal to remove any color bodies still present. The decolorizing agents are then removed by filtration.

REFERENCES:
patent: 2465991 (1949-04-01), Anderson et al.
patent: 2867651 (1959-01-01), Wise
patent: 3003002 (1961-10-01), Feinstein
patent: 3228973 (1966-01-01), O'Connor
patent: 3639459 (1972-02-01), Nissan
Feinstein, J. Org. Chem., 24, 1172-1173, (1959).

Affiliated with

Also associated with

Rating

Method of preparing polyalkylene glycol acrylates 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 of preparing polyalkylene glycol acrylates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preparing polyalkylene glycol acrylates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1159443