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Primary Examiner: Ivy, C. Warren
Assistant Examiner:
Attorney: Trautlein; Eugene C.

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Title: Energy absorbing polyurethane-polyurea cellular elastomers

Abstract: This invention relates to polyurethane-polyurea cellular elastomers having excellent energy absorbing properties over a wide temperature range and at various impact speeds and, more particularly, to the production of such elastomers by reacting a polymer polyol, an aromatic polyamine and, an aromatic glycol with an organic polyisocyanate. The elastomers are useful as energy absorbing components in automobile bumpers and the like.

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Inventors: Dunleavy, Raymond A. (Charleston, WV, US)
Hawker, Leslie E. (Charleston, WV, US)

Application Number: 343180
Filing Date: 1973-03-20
Publication_date: 1976-02-17
Assignee: Union Carbide Corporation (New York, NY)
Primary Class(es): 521/137 521/51, 521/88, 521/163, 521/167, 524/236, 524/245
Other Classes:
US Patent Ref:

3383351	May, 1968	Stamberger	260/205.
3423344	Jan, 1969	Odinak	260/2.
3575896	Apr, 1971	Khan	260/2.
3580869	May, 1971	Rhodes	260/2.
3586649	Jun, 1971	Cobbledick	260/2.
3652639	Mar, 1972	Pizzini	260/2.
3732176	May, 1973	Hostettler	260/2.
3772222	Nov, 1973	Steward	260/2.
3775350	Nov, 1973	Juhas	260/2.
3816360	Jun, 1974	Taub	260/2.

Other Refs: Other References: "Niax Polyol 31-45 A Vinyl-resin-reinforced Polyol for Flexible Urethane Foam"; Union Carbide Product Information Bulletin F-41322A, Feb. 1970; pp. 1-6.
Product Report Isonol C-100; The Upjohn Co.; Sept. 1, 1966, 1 p.