Processing aid for polymers

Details Processing aid for polymers Processing aid for polymers

C - Chemistry, Metallurgy

08

L

400/4915, 18/795

C08L 27/12 (2006.01) C08L 67/00 (2006.01) C08L 77/00 (2006.01)

Patent

CA 1338727

Polymer blend composition having improved processibility and comprising: (a) a major portion of a difficultly melt-processible polymer, and (b) a minor portion of: (1) at least an effective amount, to improve processibility, of a fluorocarbon copolymer which at the melt-processing temperature of (a) is either in a melted form if crystalline, or is above its glass transition temperature if amorphous, and (2) at least an effective amount, to improve processibility, of at least one tetrafluoroethylene homopolymer or copolymer of tetrafluoroethylene and at least one monomer copolymerizable therewith, wherein the mole ratio of fluorine to hydrogen is at least 1:1, and which is solid at the melt-processing temperature of (a): masterbatches comprised of the processing aid; and processes utilizing the processing aid.

605076

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