Process for continuously preparing urethane-containing (meth)acrylic esters
AssigneeBASF SE
InventorsJuergen Daeuwel, Steffen Maurer, Rainer Stuermer
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Abstract
A process for preparing urethane-containing (meth)acrylic esters (U) by reacting a urethane-containing alcohol (A) with a (meth)acrylic ester of a saturated alcohol (G) in the presence of at least one polymerization inhibitor (P) with an enzyme (E) as a catalyst in a reactor, wherein the (meth)acrylic ester of a saturated alcohol (G) and the urethane-containing alcohol (A) are passed continuously through at least one fixed bed reactor filled with an immobilized enzyme (E) as a catalyst.
Claims13
A process for preparing urethane-containing (meth)acrylic esters (U) comprising reacting a urethane-containing alcohol (A) with a (meth)acrylic ester of a saturated alcohol (G) in the presence of at least one polymerization inhibitor (P) with an enzyme (E) as a catalyst in a reactor, which comprises passing the (meth)acrylic ester of a saturated alcohol (G) and the urethane-containing alcohol (A) continuously through at least one fixed bed reactor filled with an immobilized enzyme (E) as a catalyst to form a urethane-containing (meth)acrylic ester, and
- extracting said urethane-containing (meth)acrylic ester with water.
Dependencies are inferred from the claim text.