Thermoplastic urethane elastomeric alloys

Details Thermoplastic urethane elastomeric alloys Thermoplastic urethane elastomeric alloys

1995-06-07

1996-05-14

Hamilton, III, Thomas

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525457, 525129, 525130, 525424, 525440, C08L 7504, C08L 7700, C08L 6700, C08L 2706

Patent

active

055168574

ABSTRACT:
Thermoplastic urethane elastomeric alloys are obtained by melt compounding at least one first component that is a polyurethane elastomer having at least one plasticizer reacted therein, this first component being formed by heating a reaction mixture comprising at least one isocyanate having a functionality of less than about 2.2, at least one long chain polyol, at least one chain extender and at least one plasticizer in specified amounts at a temperature of at least about 330.degree. F. (165.6.degree. C.), with at least one second component that is another thermoplastic elastomer not within the definition of the first component.

REFERENCES:
patent: 4608418 (1986-08-01), Czerwinski et al.
patent: 5155180 (1992-10-01), Takada et al.
Hawley's Condensed Chemical Dictionary, Twelfth Ed., Van Nostrand Reinhold Co., New York (1993). p. 934.

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