Non-telescoping polyethylene film roll and method for producing

Details Non-telescoping polyethylene film roll and method for producing Non-telescoping polyethylene film roll and method for producing

1989-09-14

1991-06-11

Seidleck, James

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428906, 525240, C08L 2306, C08L 2312, B32B 2732

Patent

active

050231421

ABSTRACT:
A small amount of polypropylene material is added to polyethylene in order to produce a composition which substantially eliminates telescoping during storage of rolls of film. The anti-telescoping composition can contain other additives such as liquid additives and/or tackifiers (whether or not liquid). When such additives are used, the anti-telescoping composition of the invention allows the use of greater quantities of these additives in polyethylene than would otherwise be possible without causing telescoping.

REFERENCES:
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patent: 4222913 (1980-09-01), Cooper
patent: 4352911 (1982-10-01), Spence
patent: 4510031 (1985-04-01), Matsumura et al.
patent: 4565847 (1986-01-01), Bahl et al.
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patent: 4632861 (1986-12-01), Vassilatos
patent: 4634739 (1987-01-01), Vassilatos
patent: 4657982 (1987-04-01), Breck et al.
patent: 4692496 (1987-09-01), Bahl et al.
Ward, "Life After the Frost Line", incorporated into Tappi Notes 1988 Film Extrusion Short Course/Seminar, p. 35.
Hadlock, "The Principles of Winding", Pima, Feb. 1979, pp. 13-16.

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