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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 9168720 B1

PDFFull Text
Date of Patent:
Oct. 27, 2015

Filed:

Sep. 24, 2009

Biaxially elastic nonwoven laminates having inelastic zones

Applicants:

Alistair Duncan Westwood, Kingwood, TX (US);

William M. Ferry, Houston, TX (US);

Inventors:

Alistair Duncan Westwood, Kingwood, TX (US);

William M. Ferry, Houston, TX (US);

Assignee:

ExxonMobil Chemical Patents Inc., Baytown, TX (US);

Attorney:

Kevin M. Faulkner

Primary Examiner:

Philip Tucker

Assistant Examiner:

Brian R Slawski

Int. Cl.
CPC ...
B29C 65/00 (2006.01); B32B 37/00 (2006.01); C08J 5/00 (2006.01); B65C 9/25 (2006.01); A61F 13/15 (2006.01); A61F 13/20 (2006.01); B32B 5/26 (2006.01); B32B 5/12 (2006.01); B32B 37/14 (2006.01); D04H 1/498 (2012.01); D04H 3/14 (2012.01); B29C 65/18 (2006.01);
U.S. Cl.
CPC ...
B32B 5/26 (2013.01); B32B 5/12 (2013.01); B32B 37/144 (2013.01); D04H 1/498 (2013.01); D04H 3/14 (2013.01); B29C 65/18 (2013.01); B29C 66/21 (2013.01); B29C 66/43 (2013.01); B29C 66/712 (2013.01); B32B 2037/0092 (2013.01); B32B 2262/0207 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/12 (2013.01); B32B 2305/20 (2013.01); B32B 2307/51 (2013.01); B32B 2432/00 (2013.01); B32B 2535/00 (2013.01); B32B 2555/02 (2013.01); Y10T 428/2481 (2015.01); Y10T 428/24942 (2015.01); Y10T 442/10 (2015.04); Y10T 442/2033 (2015.04); Y10T 442/3707 (2015.04); Y10T 442/3789 (2015.04); Y10T 442/601 (2015.04); Y10T 442/602 (2015.04); Y10T 442/659 (2015.04); Y10T 442/66 (2015.04); Y10T 442/666 (2015.04); Y10T 442/668 (2015.04);
Abstract

Disclosed is a method of imparting constraint in a biaxially elastic nonwoven laminate, and the constrained laminate itself, the method comprising providing a biaxially elastic nonwoven laminate comprising at least one meltspun elastic fabric and at least one extensible fabric or film; and fusing at least, or preferably, only a portion(s) of the at least one meltspun elastic fabric to at least one of the extensible fabrics to create at least one inelastic zone. Desirably, the at least one meltspun elastic fabric and at least one extensible fabric or film is biaxially elastic, and referred to as being 'nonwoven' due to the at least one layer of meltspun elastomer. The meltspun elastic fabric may comprise a polyolefin-based elastomer or blend of an elastomer with a thermoplastic.

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