Mary Rose Kulp

US Patent:

61144886, Sep 5, 2000

Filed:

Mar 2, 1999

Appl. No.:

9/260293

Inventors:

Mary Joanne Kulp - Macungie PA
Edwin Lee McInnis - Lincoln University PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C08G 1810

US Classification:

528 49

Abstract:

A method for the rotational casting of a polyurethane elastomer onto a rotating substrate which comprises mixing a polyurethane prepolymer, an amine curative and optionally a polyol in a mixing head and depositing the mixture onto the rotating substrate, the amine curative comprising: (a) 2-45 wt % aminobenzoate polyol having molecular weight of 200-3,000, (b) 55-98 wt % aromatic polyamine, and (c) 0 to