Mobay Corporation

Miles Inc.

Bayer Corporation

Charles S Gracik

Ashok M Sarpeshkar

Peter H Markusch

Arthur W Mason

Jack C Chan

Steven C Manning

A soft, transparent and processable thermoplastic polyurethane resin suitable in optical application is disclosed. The resin is the product of reacting a diisocyanate, a chain extender, and a mixture of polyether polyols. The mixture of polyether polyols comprise (A) a C,polyether polyol and (B) a C,-C,polyether polyol where the weight ratio A/B is in the range of about 85/15 to 15/85.

Soft, transparent and processable thermoplastic polyurethane

The present invention is directed to a hydrophilic composition which is the reaction product of a polyvinylpyrrolidone, an organic monoisocyanate, and an oxyalkylene group containing mono- or di- hydroxyl compound.

Hydrophilic polyurethane compositions

Hydrophilic polyvinylpyrrolidone compositions having a low coefficient

The present invention is directed to a solid polyurethane composition having a glass transition temperature of from -20.degree. C. to 0.degree. C., having a Bayshore rebound of less than 20, and having a Shore A hardness of less than 80.

Polyurethane elastomers

The present invention is directed to a solid polyurethane composition having a glass transition temperature of from -20.degree. C. to 0.degree. C., having a Bayshore rebound of less than 20, and having a Shore A hardness of less than 80, and being prepared by reacting:

The present invention is directed to a solid polyurethane composition having a glass transition temperature of from -20.degree. C. to 0.degree. C., having a Bayshore rebound of less than about 20, and having a Shore A hardness of less than 80.

Growing community of inventors

McMechen, WV, United States of America

Charles S Gracik