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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 11612524 B1

PDFFull Text
Date of Patent:
Mar. 28, 2023

Filed:

Feb. 19, 2020

Breathable diaper backsheet

Applicant:

Colormasters, Llc, Albertville, AL (US);

Inventor:

Robert Estill Chambliss, Trussville, AL (US);

Assignee:

COLORMASTERS, LLC, Albertville, AL (US);

Attorneys:

Ryan Letson

Jessica Zurlo

Bradley Arant Boult Cummings LLP

Primary Examiner:

Samir Shah

Int. Cl.
CPC ...
A61F 13/514 (2006.01); B32B 27/32 (2006.01); B32B 27/08 (2006.01); A61F 13/49 (2006.01); A61L 15/18 (2006.01); A61L 15/26 (2006.01); B32B 27/18 (2006.01); A61F 13/51 (2006.01);
U.S. Cl.
CPC ...
A61F 13/514 (2013.01); A61F 13/49 (2013.01); A61L 15/18 (2013.01); A61L 15/26 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/327 (2013.01); A61F 2013/51026 (2013.01); A61F 2013/51409 (2013.01); B32B 2250/03 (2013.01); B32B 2250/242 (2013.01); B32B 2264/104 (2013.01); B32B 2270/00 (2013.01); B32B 2307/54 (2013.01); B32B 2307/724 (2013.01); B32B 2307/726 (2013.01); B32B 2555/02 (2013.01);
Abstract

A breathable thermoplastic polymer film may be produced and adapted for use as a breathable diaper backsheet. The film may include a blend of LLDPE, mLLDPE and calcium carbonate, and may have improved tear strength and melt strength such that instances of tears or break offs during the machine direction orientation portion of the production process are significantly reduced or eliminated. In addition, the film may have sufficient tear strength to permit omission of CDI processing needed to strengthen weaker prior art films. In this regard, undesired streaking of colors or printed aspects of the film may be reduced or avoided completely.

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