Fibers with filler

Patent metadata

Field	Value
Publication number	US-10597501-B2
Application number	US-201715682851-A
Country	US
Kind code	B2
Filing date	Aug 22, 2017
Priority date	Apr 11, 2014
Publication date	Mar 24, 2020
Grant date	Mar 24, 2020

Abstract

The present invention is directed to articles of manufacture, including fibers and films, and methods of making thereof. In accordance with the present invention, the article includes a binder impregnated with or encapsulating a filler. The binder is a polyvinyl alcohol (PVOH), cellulose nanofibrils, or a combination of the PVOH and cellulose nanofibrils. The filler is deinking waste solids comprising ash and cellulose fines.

First claim

What is claimed is:

1. A paper web comprising:
a cellulosic substrate having a surface; and
a fiber or a film impregnated within the cellulosic substrate, having a particle size with an average diameter of about 1 micrometer to about 80 micrometers, and comprising:
a binder and a filler, the binder being a polyvinyl alcohol (PVOH) with a degree of hydrolysis of greater than 95%, the filler being deinking waste solids comprising ash and cellulose fines, the PVOH being present in an amount in a range between about 20 weight % (wt. %) to about 99 wt. % based on the total weight of the article, and the cellulose fines comprising an average diameter of about 1 to about 200 micrometers.

2. The paper web of claim 1 , wherein the binder is impregnated with the filler.

3. The paper web of claim 1 , wherein the binder is encapsulating the filler.

4. The paper web of claim 1 , wherein the filler comprises particles having an average size of less than about 20 micrometers in diameter.

5. The paper web of claim 1 , wherein the fiber or the film further comprises a processing aid.

6. The paper web of claim 5 , wherein the processing aid is present in a range between about 0.5 wt. % to about 10 wt. % based on the total weight of the fiber.

7. The paper web of claim 1 , wherein a degree of polymerization of the PVOH is in a range between about 1,000 to about 1,600.

Assignees

• Gpcp Ip Holdings Llc

Inventors

• Sumnicht Daniel W
• Schulze Thomas
• Niemz Frank-Gunther

Classifications

• D01F6/14 Primary

  from polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals · CPC title

• D21H17/25

  Cellulose · CPC title

• D21H17/74

  of organic and inorganic material · CPC title

• D06M15/333 Primary

  of vinyl acetate; Polyvinylalcohol · CPC title

• C08J2329/04

  Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids · CPC title