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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 6271155 B1

PDFFull Text
Date of Patent:
Aug. 07, 2001

Filed:

Feb. 08, 1999

Composite sheet comprising a non-woven fabric and a film

Applicant:
Inventors:

Takeshi Noma, Osaka, JP;

Shingo Horiuchi, Shiga, JP;

Yoshimi Tsujiyama, Shiga, JP;

Assignee:

Chisso Corporation, Osaka, JP;

Attorney:

Merchant & Gould P.C.

Primary Examiner:

Elizabeth M Cole

Assistant Examiner:

John J Guarriello

Int. Cl.
CPC ...
B32B 2/702 ; B32B 2/712 ;
U.S. Cl.
CPC ...
B32B 2/702 ; B32B 2/712 ;
Abstract

A composite laminated sheet comprises a thermoplastic crystalline film and a non-woven fabric having a thermoplastic conjugated fiber comprising the low melting point component and the high melting point component, in which the difference in the melting point between the low melting point component and the high melting point component is not less than 10° C.; the difference in the melting point between the thermoplastic crystalline film and the low melting point component of the conjugated fiber is not more than 30° C.; and the temperature of the position corresponding to 10% of the area from the side of the melting starting point of the endothermic peak of an entire conjugated fiber evaluated by DSC is between the melting starting point and the melting completion point of the endothermic peak of the film evaluated by DSC. According to the present invention, a composite sheet is provided in which a non-woven fabric and a film are adhered without adhesive agents, the appearance is excellent, and the adhesive strength between the non-woven fabric and the film is high. Consequently, the composite sheet of the present invention can be used for a water-proof sheets, for example, paper diapers or sanitary napkins or the like.

Find Patent Forward Citations

Noma, Takeshi. (2001). Composite sheet comprising a non-woven fabric and a film (U.S. Patent No. 6271155). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6271155

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