Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2007-02-20
2007-02-20
Boykin, Terressa (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C521S137000, C521S138000, C521S159000, C522S060000, C522S065000, C522S090000, C522S095000, C524S765000, C524S766000, C525S055000, C525S057000, C525S077000, C525S123000, C528S075000, C528S076000, C528S085000
Reexamination Certificate
active
10909492
ABSTRACT:
The present invention relates to low viscosity polymer polyols and to a process for the preparation of these low viscosity polymer polyols. These polymer polyols comprise the free-radical polymerization product of (A) a base polyol, (B) a pre-formed stabilizer, and (C) at least one ethylenically unsaturated monomer, in the presence of (D) at least one free-radical polymerization initiator, and (E) at least one polymer control agent. The total amount of polymer control agent present in the polymer polyols of the present invention ranges from greater than about 5.0% up to about 20% by weight, based on 100% by weight of the polymer polyol.
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Adkins Rick L.
Charron James R.
Guelcher Scott A.
Hayes John E.
Bayer Materialscience LLC
Boykin Terressa
Brown N. Denise
Gil Joseph C.
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