1
Milton L Weiner, Peter Breidt Jr, Thomas W Higgins: Packaging film with improved heat sealability. Mobil Oil Corporation, Charles A Huggett, Ronald J Cier, November 14, 1978: US04125662 (29 worldwide citation)

A packaging film composition having an improved heat seal range. The film comprises a core, which is preferably propylene homopolymer or copolymer but which may be a blend of polypropylene with any other compatible polymer, such core being coated on one or both sides with butene-1 homopolymer or wit ...


2
Higgins Thomas William, Weiner Milton Lawrence, Breidt Peter Jr: Packaging film with improved heat sealability.. Mobil Oil, April 18, 1979: EP0001490-A1

This invention describes a packaging film having an improved heat seal range and comprising a substrate layer which is substantially a propylene homopolymer or copolymer, such substrate layer being coated on one or both sides with butene-1 homopolymer or with a copolymer of butene-1 with ethylene.


3
Breidt Peter Jr, Higgins Thomas W, Weiner Milton L: Pellicule de conditionnement a caracteristiques de scellement ameliorees, Packaging film with improved heat sealability. Mobil Oil Corporation, KIRBY EADES GALE BAKER, September 22, 1981: CA1109345

PACKAGING FILM WITH IMPROVED HEAT SEALABILITY ABSTRACT This invention describes a packaging filmhaving an improved heat seal range and comprising asubstrate layer which is substantially a propylenehomopolymer or copolymer, such substrate layer beingcoated on one or both sides with butene-1 homopolym ...