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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 9750649 B1

PDFFull Text
Date of Patent:
Sep. 05, 2017

Filed:

Jan. 25, 2011

Nonwoven/film laminates

Applicants:

Ludwig Börmann, Babensham, DE;

Günter Schreiner, Schnaitsee, DE;

Inventors:

Ludwig Börmann, Babensham, DE;

Günter Schreiner, Schnaitsee, DE;

Assignee:

RKW SE, Frankenthal/Pfalz, DE;

Attorneys:

Paul D. Strain, Esq.

Strain & Strain PLLC

Primary Examiner:

Scott W Dodds

Int. Cl.
CPC ...
B32B 37/04 (2006.01); A61F 13/514 (2006.01); B32B 5/02 (2006.01); B32B 27/12 (2006.01); B32B 27/32 (2006.01); B29C 65/00 (2006.01); B32B 37/08 (2006.01); B32B 37/20 (2006.01); B32B 38/00 (2006.01);
U.S. Cl.
CPC ...
A61F 13/514 (2013.01); B32B 5/022 (2013.01); B32B 27/12 (2013.01); B32B 27/32 (2013.01); B32B 37/04 (2013.01); B29C 66/7294 (2013.01); B32B 37/08 (2013.01); B32B 37/203 (2013.01); B32B 38/0012 (2013.01); B32B 2250/02 (2013.01); B32B 2270/00 (2013.01); B32B 2305/20 (2013.01); B32B 2307/51 (2013.01); B32B 2307/724 (2013.01); B32B 2307/7265 (2013.01); B32B 2309/02 (2013.01); B32B 2555/00 (2013.01); Y10T 156/10 (2015.01); Y10T 428/24942 (2015.01); Y10T 428/31504 (2015.04); Y10T 442/674 (2015.04); Y10T 442/678 (2015.04);
Abstract

The invention relates to a method for producing nonwoven/film laminates for personal hygiene articles, from an initial film web consisting of a thermoplastic polymer and an initial nonwoven web. According to said method, the initial film web and the initial nonwoven web, whose melting point lies above the crystallite melting point of the polymer, are heated to a temperature that exceeds the crystallite melting point of the polymer and lies below the melting point of the initial nonwoven web. The laminate is then guided through a cooled nip and is cooled to a temperature that lies below the crystallite melting point of the initial film web. The invention also relates to laminates that can be produced by said method.

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