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
2005-06-28
2005-06-28
Acquah, Samuel A. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
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.
Danielmeier Karsten
Gambino Charles A.
Gertzmann Rolf
Henderson Karen M.
Roesler Richard R.
Acquah Samuel A.
Bayer MaterialScience AG
Bayer MaterialScience LLC
Gil Joseph C.
LandOfFree
Process for preparing aspartates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for preparing aspartates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing aspartates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3513501