C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/4013, 18/798
C08L 67/00 (2006.01) B29C 47/00 (2006.01) C08J 3/28 (2006.01) C08L 57/00 (2006.01) C08L 77/00 (2006.01)
Patent
CA 2027003
TITLE Processing Aid For Polymers ABSTRACT OF THE DISCLOSURE 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.
Chapman George R. Jr.
Priester Donnan E.
Stewart Charles W.
Chapman George R. Jr.
E.i. Du Pont de Nemours And Company
Priester Donnan E.
Sim & Mcburney
Stewart Charles W.
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