Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1996-11-25
1997-12-09
Sweet, Mark D.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428288, 428290, 428516, 428688, 524427, 604370, 604384, B32B 516
Patent
active
056958684
ABSTRACT:
Disclosed herein is a breathable film and a breathable, cloth-like film
onwoven composite made from the breathable film which is stretch-thinned and bonded to a fibrous polyolefin nonwoven web. Certain thermoplastic films such as, for example, linear low density polyethylene films are difficult to thermally bond to, for example, polypropylene nonwoven webs due to the incompatibility of the two polymers. The present invention incorporates a bonding agent into one or both of the two layers thereby making it easier to thermally bond the two layers together. Processes for forming the various composite are also disclosed.
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Kimberly--Clark Worldwide, Inc.
Sweet Mark D.
Wilson Patrick C.
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