Linear polyethylene, fluorocarbon polymer and polyalkylsiloxane

Details Linear polyethylene, fluorocarbon polymer and polyalkylsiloxane Linear polyethylene, fluorocarbon polymer and polyalkylsiloxane

1986-08-29

1988-04-26

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26433111, 26433114, 26433117, 525199, 525479, B29C 4700, B29D 701, C08F29908, C08L 2712

Patent

active

047403411

ABSTRACT:
The extrudability of linear polymers of ethylene such as low density copolymers of ethylene and C.sub.4 -C.sub.10 olefins (LLDPE) into thin films is improved by adding small amounts, e.g. 250 to 1000 ppm of each of a fluorocarbon polymer, e.g. polyvinylidene fluoride, and of a polyalkylsiloxane, e.g. poly(methyl-octyl-siloxane), to reduce melt fracture, head pressure and extruder power.

REFERENCES:
patent: 2888419 (1959-05-01), Safford
patent: 3125547 (1964-03-01), Blatz
patent: 3865897 (1975-02-01), Falender et al.
patent: 3929708 (1975-12-01), Brady et al.
patent: 4076698 (1978-02-01), Anderson et al.

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