Source: http://www.google.com/patents/US6027610?dq=6,205,432
Timestamp: 2015-02-01 15:29:54
Document Index: 777027907

Matched Legal Cases: ['art 1', 'art 1', 'art 2', 'art 2', 'art 2', 'art 2']

Patent US6027610 - Production of soft paper products from old newspaper - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA sanitary paper product made from newspapers containing coarse cellulosic fibers and printed with ink that contains oil and a method for making the same is provided. The method has the step of (a) pulping the newspapers in water with agitation to produce a pulp slurry at a consistency between 3% and...http://www.google.com/patents/US6027610?utm_source=gb-gplus-sharePatent US6027610 - Production of soft paper products from old newspaperAdvanced Patent SearchPublication numberUS6027610 APublication typeGrantApplication numberUS 08/478,484Publication dateFeb 22, 2000Filing dateJun 7, 1995Priority dateJun 29, 1994Fee statusLapsedAlso published asCA2194188A1, CN1086215C, CN1159841A, DE69527794D1, EP0767849A1, EP0767849B1, US5582681, WO1996000811A1Publication number08478484, 478484, US 6027610 A, US 6027610A, US-A-6027610, US6027610 A, US6027610AInventorsSangho Back, Nicholas W. Lazorisak, Norman L. Smeltzer, John F. SchmittOriginal AssigneeKimberly-Clark CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (100), Non-Patent Citations (118), Referenced by (23), Classifications (24), Legal Events (9) External Links: USPTO, USPTO Assignment, EspacenetProduction of soft paper products from old newspaperUS 6027610 AAbstract A sanitary paper product made from newspapers containing coarse cellulosic fibers and printed with ink that contains oil and a method for making the same is provided. The method has the step of (a) pulping the newspapers in water with agitation to produce a pulp slurry at a consistency between 3% and 12% and a pH below about 8.0; (b) adding to the slurry an enzyme selected from the group consisting of cellulase, hemicellulase, and lipase and maintaining the pulp slurry at a temperature above about 100� F. for at least 15 minutes; (c) maintaining at least about 2% of the oil in contact with the newspaper fibers beginning with the making of the pulp slurry in step (a) through step (b); and using the enzyme treated pulp as a major source of fiber in the paper making process to produce sanitary paper products.
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preferably, the fibers are recycled fibers from old corrugated containers, old newsprint, mixed office waste, and the like.US6635146Aug 29, 2001Oct 21, 2003Kimberly-Clark Worldwide, Inc.Mixing an aqueous suspension of papermaking fibers hydrolytic enzyme(s) capable of randomly hydrolyzing cellulose and/or hemicellulose; improved sheet strengthUS6666950Nov 28, 2001Dec 23, 2003Basf AgPaper; removal markingUS6797114May 23, 2002Sep 28, 2004Kimberly-Clark Worldwide, Inc.Tissue productsUS6808595Oct 10, 2000Oct 26, 2004Kimberly-Clark Worldwide, Inc.Hardwood fibers treated with endo-glucanase and crosslinking agent to form bond with aldehyde groups on surfaceUS6821387May 23, 2002Nov 23, 2004Paper Technology Foundation, Inc.Use of fractionated fiber furnishes in the manufacture of tissue products, and products produced therebyUS6946058May 23, 2002Sep 20, 2005Kimberly-Clark Worldwide, Inc.Papermaking, tissue web with hardwood and softwood layers, by creping against the furnish treated drying fiber web at an angle of less than about 82%; 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