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:
May. 05, 1981
Filed:
Apr. 11, 1978
Gerald A Romanek, Greenville, SC (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
A non-woven sheet or web of fibers, containing at least some thermoplastic fibers, is fused to consolidate the fibers, bond another sheet of material thereto, perforate the sheet or bind tufting fibers therein by heating the sheet to a temperature and for a time sufficient to fuse at least some of the fibers in preselected areas of the sheet while simultaneously blocking heat transmission to the non-selected areas, or by pretreating patterned areas of the sheet to increase or decrease the heat-absorptivity of the patterned areas relative to the remainder of the sheet and thereafter heating the sheet. Improved non-woven fabrics, consolidated in preselected areas, non-woven fabrics bonded to another sheet material in preselected areas, non-woven fabrics perforated in predetermined areas and non-woven fabric substrates firmly holding tufting materials in preselected areas, are also produced.