Back to results
US 8,802,770 B2Granted
Hydrophobic thermoplastic polyurethane
AssigneeLubrizol Advanced Materials, Inc.
InventorsDonald A. Meltzer, Jacques P. E. J. Horrion
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeLubrizol Advanced Materials, Inc.
InventorsDonald A. Meltzer, Jacques P. E. J. Horrion
Estimating the term…
The present invention discloses a semicrystalline, thermoplastic polyurethane which is comprised of the reaction product of (1) a hydrophobic polyol, (2) a polyisocyanate, and (3) a linear chain extender containing 5 carbon atoms or 7 to 12 carbon atoms; wherein the hydrophobic polyol has a number average molecular weight which is within the range of about 1,000 to about 4,000; wherein the semicrystalline, thermoplastic polyurethane has a weight average molecular weight which is within the range of 50,000 to 1,000,000; and wherein the semicrystalline, thermoplastic polyurethane has a melting point which is within the range of 80° C. to 150° C. This hydrophobic thermoplastic polyurethane offers a unique array of characteristics that are highly desirable for utilization in manufacturing a variety of products. For instance, it can be used in overmolding soft grips onto consumer products, in adhesives, and in protective coatings.
A semicrystalline, thermoplastic polyurethane which is comprised of the reaction product of (1) a polyester hydrophobic polyol, wherein said hydrophobic polyol is made from dimer acids or esters thereof containing from 36 to 44 carbon atoms, (2) a polyisocyanate, and (3) a linear diol chain extender containing 5 carbon atoms or 7 to 12 carbon atoms;
Dependencies are inferred from the claim text.