Hoechst Aktiengesellschaft

Hoecht Ag

Dieter Scheidecker

Thomas Dries

Ursula Murschall

Adolf Wilhelm

Harald Lohmann

Herbert Peiffer

Gunter Schloegl

Detlef E Schuhmann

Michael Schreck

Detlef E Schulhmann

Adolf Wilheim

A coextruded, biaxially orientated film comprising a base layer, which comprises a polypropylene or a polypropylene mixture, and at least one top layer comprising olefinic polymers. The top layer comprises a combination of inorganic and/or organic particles and tertiary aliphatic amine of the formula I ##STR1## in which R.sup.1 essentially is an at least partially unsaturated alkyl radical having at least 18 carbon atoms or an essentially completely saturated alkyl radical having 8 to 26 carbon atoms and

Biaxially orientated polpropylene multilayer film, process for its

The invention relates to a peelable, oriented, opaque, multilayer polyolefin film comprising at least one opaque layer and a peelable top layer. All layers of the film are essentially vacuole-free. The opaque layer contains pigments having a mean particle diameter of from 0.01 to 1 .mu.m.

Peelable, heat-sealable, multilayer polyolefinic film, process for the

Biaxially orientated polypropylene multilayer film, process for its

The invention relates to a multilayer polypropylene film which comprises a base layer K, an interlayer Z and an outer layer D in the structure KZD. The base layer includes propylene polymer or a propylene polymer mixture and filler. The interlayer includes a propylene polymer or a propylene polymer mixture and pigment. The outer layer is heat-sealable and contains a combination of inorganic and/or organic particles and a tertiary aliphatic amine of the formula I: ##STR1## in which R.sup.1 is essentially an alkyl radical having at least 18 carbon atoms or an essentially fully saturated alkyl radical having 8 to 26 carbon atoms, and

Heat-sealable, opaque, biaxially oriented, multilayer polypropylene

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Eltville, Germany

Dieter Scheidecker