Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2006-08-29
2006-08-29
Richter, Johann (Department: 1621)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C436S518000, C435S007100, C525S255000
Reexamination Certificate
active
07098261
ABSTRACT:
Novel phosphine and phosphine oxide ligands are prepared using polymeric supports. These compounds can be easily cleaved from the support, and along with the corresponding supported compounds, used as ligands in the preparation of novel, metal-complexed catalysts.
REFERENCES:
patent: 5650456 (1997-07-01), Yun et al.
Fagan Paul J.
Li George Yanwu
E. I. du Pont de Nemours and Company
Nwaonicha Chukwuma
Richter Johann
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