The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2010
Filed:
Jun. 26, 2002
Pirjo Jaaskelainen, Porvoo, FI;
Markus Gahleitner, Neuhofen, AT;
Manfred Kirchberger, Prambachkirchen, AT;
Paivi Pitkanen, Halkia, FI;
Pirjo Jaaskelainen, Porvoo, FI;
Markus Gahleitner, Neuhofen, AT;
Manfred Kirchberger, Prambachkirchen, AT;
Paivi Pitkanen, Halkia, FI;
Borealis Technology Oy, Porvoo, FI;
Abstract
The present invention relates in a first embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol % wherein the sealing initiation temperature SIT of the film is T−30° C. or less, preferably T−33° C. or less, in a second embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol % wherein the film is having a relative reduction of the static friction value (inside-inside) from one to four days of 35% or more, preferably 40% or more, in a third embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol % wherein the distribution of the comonomer in the random copolymer determined according to TREF method is multimodal, preferably bimodal, in a fourth embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol %, wherein the copolymer is having an elution interval of 50° C. or more, and in a fifth embodiment to a polymer film comprising a copolymer with a total comonomer content of 4.5 to 12 mol % wherein the random copolymer is a unimodal polymer and the elution interval is determined by the equation4.5·16wherein Y is the elution interval in ° C. andm is the percentage of ethylene in the copolymer in wt. %.