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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 11850774 B1

PDFFull Text
Date of Patent:
Dec. 26, 2023

Filed:

Nov. 01, 2018

Method for producing an extruded sheet

Applicant:

Flooring Industries Limited, Sarl, Bertrange, LU;

Inventor:

Thomas Grafenauer, Lichtenau, AT;

Assignee:

FLOORING INDUSTRIES LIMITED, SARL, Bertrange, LU;

Attorney:

WORKMAN NYDEGGER

Primary Examiner:

Jeffrey M Wollschlager

Int. Cl.
CPC ...
B29C 43/24 (2006.01); B29C 48/00 (2019.01); B29C 48/285 (2019.01); B29C 48/07 (2019.01); B29C 48/797 (2019.01); B29B 7/00 (2006.01); B29B 7/82 (2006.01); B29B 7/90 (2006.01); C08J 3/20 (2006.01); C08J 7/04 (2020.01); C08K 3/26 (2006.01); C09D 125/06 (2006.01); E04F 15/10 (2006.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); B29K 27/06 (2006.01); B29K 105/00 (2006.01); B29K 105/16 (2006.01); B29K 491/00 (2006.01); B29K 509/00 (2006.01); B29L 7/00 (2006.01); B29L 31/00 (2006.01); C08K 5/098 (2006.01);
U.S. Cl.
CPC ...
B29C 43/24 (2013.01); B29B 7/007 (2013.01); B29B 7/823 (2013.01); B29B 7/90 (2013.01); B29C 48/0011 (2019.02); B29C 48/0022 (2019.02); B29C 48/07 (2019.02); B29C 48/287 (2019.02); B29C 48/797 (2019.02); C08J 3/203 (2013.01); C08J 7/042 (2013.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08K 3/26 (2013.01); C09D 125/06 (2013.01); E04F 15/105 (2013.01); B29K 2027/06 (2013.01); B29K 2105/0038 (2013.01); B29K 2105/0044 (2013.01); B29K 2105/16 (2013.01); B29K 2491/00 (2013.01); B29K 2509/00 (2013.01); B29K 2995/0096 (2013.01); B29L 2007/002 (2013.01); B29L 2031/732 (2013.01); C08J 2327/06 (2013.01); C08J 2423/00 (2013.01); C08J 2475/04 (2013.01); C08K 5/098 (2013.01); C08K 2003/265 (2013.01);
Abstract

The disclosure relates to a method for producing an extruded sheet, which includes: a) providing calcium carbonate (CaCO) powder; b) providing polyvinyl chloride (PVC) powder; c) providing additives as stabilisers; e) heating the mixture until the PVC softens to form a kneadable mass and the CaCOat least partially bonds to the PVC; f) cooling the mass; g) conveying the mass to an extruder; h) melting and extruding the mass by means of an extruder and moulding into a sheet by means of a slotted nozzle; i) pressing the still-warm sheet to a desired final thickness by means of at least two calendar rolls; and j) at least one layer of a pigmented lacquer is applied to the upper side; and k) an additional lacquer is applied to the pigmented lacquer to increase the scratch resistance.

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