Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-07-08
2008-08-12
Mulcahy, Peter D (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S565000
Reexamination Certificate
active
07411015
ABSTRACT:
The present invention discloses a process for hydrogenating a latex of a low molecular weight functionalized, unsaturated elastomer to produce a latex of a hydrogenated, low molecular weight, low gel, functionalized elastomer, said process comprising hydrogenating the low molecular weight, functionalized, unsaturated elastomer in the presence of (1) an oxidant selected from the group consisting of oxygen and hydroperoxides, (2) a reducing agent selected from the group consisting of hydrazine and hydrazine hydrates, and (3) a metal ion activator, wherein a hydroxylamine is added to the latex of the low molecular weight, functionalized, unsaturated elastomer or to the latex of the hydrogenated, low molecular weight, functionalized elastomer prior, during, or subsequent to the hydrogenation to produce the latex of the hydrogenated low molecular weight, low gel, functionalized elastomer.
REFERENCES:
patent: 4452950 (1984-06-01), Wideman
patent: 5039737 (1991-08-01), Parker et al.
patent: 5424356 (1995-06-01), Parker et al.
patent: 5442007 (1995-08-01), Parker et al.
patent: 5442009 (1995-08-01), Parker et al.
patent: 6521694 (2003-02-01), Belt et al.
patent: 6552132 (2003-04-01), Belt et al.
Files Edmee
Gozdiff Michael
Tao David D. H.
Mulcahy Peter D
Rockhill Alvin T.
Zeon Chemicals L.P.
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