PTMEG polyurethane elastomers employing monofunctional polyether

Details PTMEG polyurethane elastomers employing monofunctional polyether PTMEG polyurethane elastomers employing monofunctional polyether

1995-05-09

1996-08-13

Johnson, Rachel

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 65, C08G 1812

Patent

active

055457061

ABSTRACT:
The addition of minor quantities of a hydroxyl-functional polyoxyalkylene monol to a PTMEG-derived isocyanate-terminated prepolymer during prepolymer preparation enables the preparation of glycol extended polyurethane elastomers which exhibit improved physical properties, particularly elongation, tensile strength, and tear strength, without significantly affecting elastomer hardness.

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"Comparison of the Dynamic Properties of Polyurethane Elastomers Based on Low Unsaturation Polyoxypropylene Glycols and Poly(tetramethylene oxide) Glycols", A. T. Chen, et al; Polyurethanes World Congress 1993--Oct. 10-13, 1993, pp. 388-399.

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