Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1994-11-29
1996-08-06
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C07C 6726
Patent
active
055435572
ABSTRACT:
A method of making an acrylate monomer from an essentially ethoxylated polyol, which monomer has a reduced and very low Primary Irritation Index (PII value). The base polyol is di, tri, tetra or polyhydroxyfunctional and the reduced PII value is obtained by reducing the formation of by-products such as monoethylene, diethylene and triethylene glycol during the ethoxylation of the base polyol. A polyol is reacted with propylene oxide at a molar ratio of 1:0.5-1:2.5 and in the presence of an alkali metal hydroxide catalyst. The polyol propoxylate obtained is reacted with ethylene oxide at a molar ratio of 1:2-1:10, whereby an ethoxylated polyol propoxylate with an average molecular weight of 270-500 is obtained. The ethoxylated polyol propoxylate is finally acrylated to yield an acrylate monomer having at least one acrylic unsaturation.
REFERENCES:
patent: 3190927 (1965-06-01), Patton, Jr. et al.
patent: 4118426 (1978-10-01), Holy et al.
patent: 4767846 (1988-08-01), Stepto et al.
patent: 4960952 (1990-10-01), Kemp
patent: 5010187 (1991-04-01), Heuvelsland
patent: 5059719 (1991-10-01), Edwards
patent: 5118870 (1992-06-01), Kemp
Killos Paul J.
Perstorp AB
LandOfFree
Acrylate monomer having a reduced primary irritation index and a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acrylate monomer having a reduced primary irritation index and a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acrylate monomer having a reduced primary irritation index and a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2192264