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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 12110369 B1

PDFFull Text
Date of Patent:
Oct. 08, 2024

Filed:

Mar. 05, 2020

Method for the combined processing of at least two polymer melts

Applicant:

Basf SE, Ludwigshafen, DE;

Inventors:

Thomas Heitz, Ludwigshafen, DE;

Johann Diedrich Brand, Waterloo, BE;

Joerg Erbes, Ludwigshafen, DE;

Assignee:

BASF SE, Ludwigshafen, DE;

Attorney:

Grüneberg and Myers PLLC

Primary Examiner:

Michael M Bernshteyn

Int. Cl.
CPC ...
C08J 3/00 (2006.01); B29B 9/06 (2006.01); B29B 9/12 (2006.01); B29B 11/06 (2006.01); B29K 67/00 (2006.01); B29K 105/04 (2006.01); C08J 9/00 (2006.01); C08J 9/12 (2006.01); C08J 9/18 (2006.01); C08L 67/02 (2006.01); D01D 5/08 (2006.01); D01F 6/78 (2006.01);
U.S. Cl.
CPC ...
C08J 3/005 (2013.01); B29B 9/06 (2013.01); B29B 9/12 (2013.01); B29B 11/06 (2013.01); C08J 9/0061 (2013.01); C08J 9/122 (2013.01); C08J 9/18 (2013.01); C08L 67/02 (2013.01); C08L 67/025 (2013.01); D01D 5/08 (2013.01); D01F 6/78 (2013.01); B29K 2067/003 (2013.01); B29K 2105/048 (2013.01); C08J 2203/06 (2013.01); C08J 2203/22 (2013.01); C08J 2367/02 (2013.01); C08J 2467/02 (2013.01); C08L 2203/12 (2013.01); C08L 2203/14 (2013.01); C08L 2203/30 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01);
Abstract

The invention relates to a method for the combined processing of at least two polymer melts selected from the group consisting of (M), (M) and (M), wherein (M) is a polymer melt comprising a terephthalate polyester (A), (M) is a polymer melt comprising a copolyester (A) on the basis of terephthalic acid, at least one aliphatic, ω-dicarboxylic acid and at least one aliphatic 1,ω-diol, and (M) is a polymer melt 0 comprising a copolyester (A) on the basis of terephthalic acid, at least one polytetramethylene glycol and at least one aliphatic 1,ω-diol. The method comprises the alternating processing of the at least two polymer melts into at least one product selected from the group consisting of pellets (P), fibers (P), expanded particles (P), preforms (P) and articles (P).

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