ACETOACETYL POLYMER, METHOD FOR PRODUCING SAME, AND MOLD RELEASE AGENTS AND COATINGS CONTAINING SAME

摘要

Disclosed is an acetoacetyl polymer, which is a polysiloxane having acetoacetoxy group or acetoacetamide group thereon and can be widely used in mold release agent, coating, sealant, adhesive and coupling agent, etc. Also disclosed is a method for producing the acetoacetyl polymer, wherein the method is characterized by comprising the following steps: ammonolyzing an acetoacetate via ester ammonolysis reaction using an amino-containing polysiloxane, and/or esterifying a hydroxyalkyl-containing polysiloxane via transesterification reaction using an acetoacetate. Also disclosed are mold release agents and coatings containing the acetoacetyl polymer.