Polyurethane elastomers
AssigneeCroda International PLC
InventorsWilhelmus Adrianus Jacobus Honcoop, Remco Benjamin Van Triet, Angela Leonarda Maria Smits
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Abstract
The present invention relates to a polyurethane elastomer obtainable by reacting a polyol and an isocyanate wherein the polyol comprises a) at least one dimer fatty residue selected from a dimer fatty diacid residue, a dimer fatty diol residue and a dimer fatty diamine residue; and b) at least one furan dicarboxylic acid residue. The invention also relates to a polyol for making the polyurethane elastomer, the use of the polyol and a method of making the polyurethane.
Claims15
A polyurethane elastomer obtainable by reacting a polyol and an isocyanate wherein the polyol comprises:
- a) at least one dimer fatty residue selected from a dimer fatty diacid residue, a dimer fatty diol residue and a dimer fatty diamine residue;
- b) at least one furan dicarboxylic acid residue;
- and
- c) at least 10 wt % of at least one residue of a C2 to C10 diol based on the total weight of the polyol,
- wherein the weight ratio of the at least one dimer fatty residue to the at least one furan dicarboxylic acid residue is at least 1:1 and at most 20:1 and
- wherein the polyurethane elastomer is non-adhesive.
A method of making a polyurethane elastomer comprising reacting a polyol with an isocyanate to form:
- (i) the polyurethane elastomer;
- or
- (ii) an isocyanate-terminated pre-polymer which is then reacted with a chain extender to form the polyurethane elastomer,
- wherein the polyol comprises:
- a) at least one dimer fatty residue selected from a dimer fatty diacid residue, a dimer fatty diol residue and a dimer fatty diamine residue;
- b) at least one furan dicarboxylic acid residue;
- and
- c) at least 10 wt % of at least one residue of a C2 to C10 diol based on the total weight of the polyol,
- wherein the weight ratio of the at least one dimer fatty residue to the at least one furan dicarboxylic acid residue is at least 1:1 and at most 20:1 and
- wherein the polyurethane elastomer is non-adhesive.
Dependencies are inferred from the claim text.