C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 6/28 (2006.01) B29B 7/42 (2006.01) B29B 7/84 (2006.01) B29C 47/38 (2006.01) B29C 47/76 (2006.01) B32B 27/08 (2006.01) B32B 27/32 (2006.01) C08F 6/00 (2006.01)
Patent
CA 2081105
A method of improving the oxidative thermal stability of ethylene polymers is disclosed. The method comprises removing residual unreacted monomer(s), solvent and thermally unstable species from the polymer using a stripping agent and subsequent devolatilization. The resulting polymer is characterized by having an oxidative exotherm of not more than 50 percent of the original polymer, as measured by differential scanning calorimetry, as well as improved taste and odor properties.
Hughes Morgan M.
Rowland Michael E.
Strait Chad A.
Smart & Biggar
The Dow Chemical Company
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