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:
Nov. 20, 2007
Filed:
May. 28, 2003
John Joseph Rabasco, Allentown, PA (US);
Ronald Joseph Pangrazi, Fleetwood, PA (US);
Richard Henry Bott, Macungie, PA (US);
John Joseph Rabasco, Allentown, PA (US);
Ronald Joseph Pangrazi, Fleetwood, PA (US);
Richard Henry Bott, Macungie, PA (US);
Air Products Polymers, L.P., Allentown, PA (US);
Abstract
This invention is directed to an improved nonwoven product comprising a nonwoven web of fibers bonded together with a sufficient amount of binder comprised of a polymer comprised of vinyl acetate, ethylene, and a crosslinking monomer to form a self-sustaining web. The improvement in the nonwoven product resides in the use of a polymer having a crystalline melting point (T) ranging from 35 to 90° C., preferably 50 to 80° C.; measured at a heat rate of 20° C./minute. The polymer should have a crystalline heat of fusion (H), which typically range from about 2 to about 50 joules per gram and a low glass transition temperature (T), e.g., from 10 to −40° C., typically −15 to −35° C.