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:
Jun. 07, 1988
Filed:
May. 14, 1986
Lawrence Vaalburg, Vineland, NJ (US);
H Paul Kaiser, Tuckerton, NJ (US);
Scott Paper Company, Philadelphia, PA (US);
Abstract
A method of making a nonwoven fibrous web. A web of primary fibers having uniformly distributed throughout secondary fibers containing 3 to 7 percent polyethylene by weight of the final web is formed on a conveying means. The polyethylene of the secondary fibers has a melting point that is lower than the melting point of the primary fibers. The web is then heated to a temperature below the melting point of the primary fibers but above the melting point of the polyethylene of the secondary fibers thereby causing some of the polyethylene fibers to bond to each other or to the primary fibers. The web is then heated to a temperature above the melting point of the primary fibers to form primary fiber-to-primary fiber thermal bonds which provide substantially all of the useful strength of the web.