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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.:

US 4255300 B1

PDFFull Text
Date of Patent:
Mar. 10, 1981

Filed:

Jul. 02, 1979

Composition and process for making precipitated cellulose-polyvinyl

Applicant:
Inventors:

Neal E Franks, Suffern, NY (US);

Julianna K Varga, Asheville, NC (US);

Assignee:

Akzona Incorporated, Asheville, NC (US);

Attorneys:

Young; Francis W.

Hall; Jack H.

Haeussler; H. Walter

Primary Examiner:

Edward M Woodberry

Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 536 56 ; 536 57 ;
Abstract

A composition and process are provided for making precipitated biconstituent cellulose-polyvinyl alcohol shaped articles by dissolving polyvinyl alcohol and cellulose in a tertiary amine oxide solvent containing from about 0.8 to about 29% water to form a biconstituent dispersion wherein the cellulose and polyvinyl alcohol comprise distinct phases, preferably with the two solutions codispersed within each other. Shaped articles can be formed from the biconstituent dispersions of the invention.

Find Patent Forward Citations

Franks, Neal. (1981). Composition and process for making precipitated cellulose-polyvinyl (U.S. Patent No. 4255300). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4255300

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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