C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 27/06 (2006.01) C08J 3/00 (2006.01) C08J 3/12 (2006.01) C08L 73/00 (2006.01)
Patent
CA 2103274
2103274 9220742 PCTABS00017 Preparing a free-flowing powdered polyvinyl chloride composition by blending in a high speed mixer 20-65 weight percent of a high molecular weight solid ethylene-containing copolymer plasticizer, melt index not greater than 3000 g/10 minutes, dissolved in a low molecular weight plasticizer and 35-80 weight percent of porous polyvinyl chloride powder having substantially no skin and a porosity of from 0.1-0.7 ml/g so that the temperature during mixing is from 70-130 ·C and recovering the free-flowing plasticized polyvinyl chloride powder.
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
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