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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.:

US 6627324 B1

PDFFull Text
Expired
Date of Patent:
Sep. 30, 2003

Filed:

Apr. 10, 2001

Tough, dimensionally-stable transparent film having a copolyamide layer containing solid nanoscale filling materials with nucleating effect and its use for packaging foodstuffs

Applicant:
Inventors:

Holger Eggers, Freiburg, DE;

Gregor Kaschel, Bomlitz, DE;

Claudia Müller, Walsrode, DE;

Andreas Gasse, Walrode, DE;

Rainer Brandt, Walsrode, DE;

Dieter Neubauer, Bomlitz, DE;

Bernd Eilers, Bomlitz, DE;

Assignee:

Wolff Walsrode AG, Walsrode, DE;

Attorney:

Norris McLaughlin & Marcus

Primary Examiner:

James J Seidleck

Assistant Examiner:

Travis B Ribar

Int. Cl.
CPC ...
B32B 2/708 ; B32B 2/734 ;
U.S. Cl.
CPC ...
B32B 2/708 ; B32B 2/734 ;
Abstract

Described is a film having at least a single layer and at least one copolyamide layer (I) containing dispersed nanoscale nucleating particles. Crystalline structures extending from the dispersed particle surfaces are formed after the layer (I) is cooled from a molten state at a cooling rate of from 10° C. to 20° C. per minute. The dispersed nanoscale nucleating particles are present in layer (I) in an amount of from 10 ppm to 2000 ppm, based on the total weight of layer (I). Also described is a method of using the film of the present invention in packaging foodstuffs.

Find Patent Forward Citations

Eggers, Holger. (2003). Tough, dimensionally-stable transparent film having a copolyamide layer containing solid nanoscale filling materials with nucleating effect and its use for packaging foodstuffs (U.S. Patent No. 6627324). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6627324

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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