METHOD FOR PREPARING (METH)ACRYLATES OF BIOBASED ALCOHOLS AND POLYMERS THEREOF

摘要

Polymers, particularly those used in pressure-sensitive adhesives, are prepared from a mixture of structural isomers of a secondary alkyl (meth)acrylate monomer. The mixture is made by dehydrating a biobased C2-C22 alcohol with a first acid catalyst using a continuous process to form a mixture of olefins, and reacting (meth)acrylic acid with at least some of the mixture of olefins in the presence of a second acid catalyst. The adhesives are characterized by exhibiting an overall balance of adhesive and cohesive characteristics, and containing biobased material.

主权项

1. A method of making a mixture of structural isomers of a secondary alkyl(meth)acrylate of Formula (I): wherein:
R1 and R2 are each independently a C1 to C20 saturated linear alkyl group;the sum of the number of carbons in R1 and R2 is 2 to 21; andR3 is H or CH3. wherein the method comprises:
dehydrating a biobased C2-C22 alcohol with a first acid catalyst using a continuous process, thereby forming a mixture of olefins; andreacting (meth)acrylic acid with at least some of the mixture of olefins in the presence of a second acid catalyst.