Stabilized acrylic acid esters of polyhydric alcohols and a process for their preparation
AssigneeBayer Aktiengesellschaft
InventorsHans Jurgen Rosenkranz, Hans Rudolph
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Abstract
Acrylic acid esters of polyhydric alcohols can be stabilized by the addition of allyl compounds.
Claims7
A composition comprising an acrylic acid ester of a polyhydric alcohol having at least two acrylate moieties and a stabilizing amount of an allyl compound of the formula ##STR4## wherein R.sub.1 -R.sub.4 are hydrogen or alkyl having 1 to 4 carbon atoms;
- X is chlorine, bromine, hydroxy, ##STR5## wherein R.sub.5 is an n-valent aliphatic, araliphatic, cycloaliphatic or aromatic hydrocarbon radical which may contain free hydroxy moieties or --O-- linking moieties and R.sub.6 is an n-valent aliphatic, cycloaliphatic, araliphatic or aromatic radical and n is an integer of from 1 to 4.
A process for preparing a stabilized acrylic acid ester of a polyhydric alcohol which comprises esterifying at least two hydroxyl moieties of a polyhydric alcohol with acrylic acid in the presence of a stabilizing amount of an allyl compound of the formula ##STR6## wherein R.sub.1 -R.sub.4 are hydrogen or alkyl having 1 to 4 carbon atoms;
- X is chlorine, bromine, hydroxy, ##STR7## wherein R.sub.5 is an n-valent aliphatic, araliphatic, cycloaliphatic or aromatic hydrocarbon radical which may contain free hydroxy moieties or --O-- linking moieties and R.sub.6 is an n-valvent aliphatic, cycloaliphatic, araliphatic or aromatic radical and n is an integer of from 1 to 4.
Dependencies are inferred from the claim text.