Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2006-02-14
2006-02-14
Acquah, Samuel A. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C528S274000, C528S277000, C528S280000, C528S282000, C528S285000, C528S286000, C528S287000, C528S290000, C528S295000, C528S300000, C528S301000, C528S302000, C528S308000, C528S308600, C525S437000, C525S444000, C524S706000, C524S711000, C524S730000, C524S765000, C524S766000, C524S783000, C524S785000, C524S786000, C524S789000
Reexamination Certificate
active
06998462
ABSTRACT:
Disclosed is a process that comprises contacting, in the presence of an esterification or transesterification or polycondensation catalyst composition, a toner, and a phosphorus compound, a carbonyl compound and an alcohol under a condition suitable for esterification, transesterification, or polymerization.
REFERENCES:
patent: 6787630 (2004-09-01), Dominguez De Walter et al.
patent: WO 02068497 (2002-09-01), None
Duan Jiwen F.
Putzig Donald E.
Acquah Samuel A.
E.I. du Pont de Nemours and Company
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