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
2006-12-12
2006-12-12
Seidleck, James J. (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...
C525S037000, C525S059000, C525S060000, C525S062000, C525S173000, C525S118000, C525S162000, C525S263000, C525S532000, C525S332900, C525S333300, C524S147000, C524S151000, C528S075000
Reexamination Certificate
active
07148288
ABSTRACT:
A process is disclosed for formation of a preformed stabilizer for use in formation of graft polyols. The preformed stabilizer has a reduced level of transesterification products and results in less reactor fouling. The preformed stabilizer is prepared in the presence of phosphorous compounds, which reduces the unwanted transesterification products.
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Borst Joseph P.
Huang Mao-Yao
Peters David D.
Asinovsky Olga
BASF Corporation
Borrego Fernando A.
Seidleck James J.
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