Process for preparing aspartates

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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C528S310000, C528S335000, C528S338000, C528S339000, C528S340000, C528S422000, C525S420000, C525S421000, C525S424000, C525S540000

Reexamination Certificate

active

06911501

ABSTRACT:
The present invention relates to novel aspartates, their method of production and the use of these aspartates as reactive components for polyisocyanates in two-component polyurethane coating compositions and for preparing polyurethane prepolymers. The aspartates are prepared by first reacting a di- or polyamine with an unsaturated ester and then reacting the resultant product with a maleimide.

REFERENCES:
patent: 5126170 (1992-06-01), Zwiener et al.
patent: 5214086 (1993-05-01), Mormile
patent: 5236741 (1993-08-01), Zwiener et al.
patent: 5243012 (1993-09-01), Wicks et al.
patent: 5364955 (1994-11-01), Zwiener et al.
patent: 5412056 (1995-05-01), Zwiener et al.
patent: 5489704 (1996-02-01), Squiller et al.
patent: 5559204 (1996-09-01), Squiller et al.
patent: 5623045 (1997-04-01), Zwiener et al.
patent: 5736604 (1998-04-01), Luthra
patent: 5821326 (1998-10-01), Kurek et al.
patent: 5847195 (1998-12-01), Roesler
patent: 6005062 (1999-12-01), Hansen et al.
patent: 6183870 (2001-02-01), Hergenrother et al.
patent: 667 362 (1995-08-01), None
Houben Weyl, Meth. D. Org. Chemie, vol. 11/1, month unavailable 1957, pp. 272-277, F. Müller: “Amine durch Anlagerungsreaktionen”.
Usp. Chimii, month unavailable 1969, pp. 1933-1963, C.H. Cymuhob et al.

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