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.:
Date of Patent:
Jul. 07, 1992
Filed:
Sep. 04, 1991
Sheryl J Anapol, East Windsor, NJ (US);
Hien V Nguyen, East Windsor, NJ (US);
Chicopee, New Brunswick, NJ (US);
Abstract
A fibrous structure comprising a batt of a loose assemblage of fibers, having an initial density, that is embossed to produce a batt having a discrete pattern of hydrogen-bonded, compressed or densified portions and regions between the compressed portions. The regions have an average density greater than the average initial density of the batt and less than the density of the batt and less than the density of the compressed portions so as to form discrete density gradients across the surface of the batt. The batt has an initial average density of from about 0.03g/cm.sup.3 to about 0.15 g/cm.sup.3. The compressed portions have an average density in the range of from about 0.40 g/cm.sup.3 to about 1.00 g/cm.sup.3 and have a size in the range of from about 0.0002 cm.sup.2 to about 0.12 cm.sup.2. The regions defined between the compressed portions occupy from about 97 percent to about 99.5 percent of the area of the surface of the batt. The compressed portions may be formed by embossing rolls or by application of ultrasonic energy.