Croda International, Inc.

Karin Van Der Helm-Rademaker

Angela Leonarda Maria Smits

Wilhelmus Adrianus Jacobus Honcoop

Remco Benjamin Van Triet

The present invention provides a co-polymer polyol which has an ABA block structure wherein each A block comprises a plurality of hydroxy-carboxylic acid residues and the B block comprises at least one dimer fatty residue selected from a dimer fatty diacid residue, a dimer fatty diol residue and a dimer fatty diamine residue, wherein the co-polymer polyol comprises at least two hydroxyl end groups. The invention also provides a method of making the co-polymer polyol and a polyurethane comprising the co-polymer polyol.

Co-polymer polyol

The present invention relates to a polyurethane which is the reaction product of a polyisocyanate and polyester, wherein said polyester is formed from a dimer fatty acid, a Cto Cdiol, and a Cto Cdicarboxylic acid or Cto Clactide. The inventions also relates to a polyester for use in forming the polyurethane of the first aspect, said polyester formed from a dimer fatty acid, a Cto Cdiol, and a Cto Cdicarboxylic acid or Cto Clactide.

Growing community of inventors

Gouda, Netherlands

Karin Van Der Helm-Rademaker