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:
Aug. 02, 1988
Filed:
Dec. 29, 1986
Kenneth D Vinson, Germantown, TN (US);
The Buckeye Cellulose Corporation, Memphis, TN (US);
Abstract
A process for making mechanically expanded fiber from fibrous material having a fibrillar ultrastructure. The expanded fiber is made by impacting the fibrous material with a plurality of fine media. Impacting by the fine media causes the fibers to expand from a fibrous form to a highly fibrillated form, wherein fibrils separate from, or become substantially disassociated from, the fibrous material ultrastructure. Cellulosic fibrous material is particularly applicable to the process. Cellulosic fibrous material is preferably impacted with fine media at least until the cellulose-containing phase of an aqueous slurry containing 0.5%, by weight, of cellulosic material will retain at least fifty percent of the initial volume of such cellulose-containing phase upon unagitated settling for a period of sixty minutes.