IP Library Granted Patent US 9,433,154
Granted Patent B2
US 9,433,154 · App. 13/552,772 · Granted Sep 6, 2016

Biodegradable landscape fabric

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Quick Facts
Patent No.
US 9,433,154
App. No.
13/552,772
Granted
Sep 6, 2016
Kind
B2
Abstract

The present invention relates to a biodegradable landscape fabric comprising spunlaced cellulosic fibers which comprise 0% to 75% wood pulp fibers and 25% to 100% regenerated cellulosic fibers without fiber binding materials and may further comprise a colorant.

Claims (21)

1. A biodegradable landscape fabric, comprising

spunlaced cellulosic fibers which comprise 25% to 75% wood pulp fibers and 25% to 75% regenerated cellulosic fibers and without fiber binding materials,

the biodegradable landscape fabric being about 55% softwood pulp fibers and about 45% spunlaced regenerated cellulosic fiber,

the softwood pulp fibers combined on top of the spunlaced regenerated cellulosic fiber forming a dried combined sheet;

the combined sheet spunlaced together into a single consolidated sheet;

the single consolidated sheet of biodegradable landscape fabric being substantially cellulosic.

2. The biodegradable landscape fabric according to claim 1 , wherein the regenerated cellulosic fibers are selected from the group consisting of lyocell and rayon.

3. The biodegradable landscape fabric according to claim 1 , comprising of colorant.

4. A biodegradable landscape fabric, comprising

at least a portion of the biodegradable landscape fabric including at least about 25% to 75% wood pulp fibers and including at least about 25% to 75% regenerated cellulosic fibers and without fiber binding materials,

wherein the biodegradable landscape fabric includes about 55% softwood pulp fibers at about 44.4 g/m2 and about 45% lyocell spunlaced regenerated cellulosic fiber at about 32 g/m2;

the softwood pulp fibers combined on top of the lyocell fiber to form a combined sheet;

the combined sheet spunlaced together into a single combined sheet;

wherein the biodegradable landscape fabric has a basis weight of about 71 g/m2.

5. A method of making a biodegradable landscape fabric, comprising:

spunlacing into a web lyocell fiber at about 32 g/m2;

forming into a sheet softwood pulp fibers at about 44 g/m2;

combining the sheet of softwood pulp fibers to a position on top of the lyocell web;

spunlacing the combined sheets of softwood pulp fibers and lyocell web into a single sheet;

drying the single sheet;

forming the dried single sheet into a biodegradable landscape fabric having a basis weight of about 71 g/m2.

Assignments (4)
CHANGE OF NAME Recorded Apr 24, 2023
From: JACOB HOLM & SONS AG
To: GLATFELTER HOLDING (SWITZERLAND) AG
Reel/Frame 063410/0834 →
SECURITY INTEREST Recorded Apr 20, 2023
From: GLATFELTER DRESDEN GMBH; GLATFELTER FALKENHAGEN GMBH; GLATFELTER GERNSBACH GMBH; GLATFELTER HOLDING (SWITZERLAND) AG
To: ALTER DOMUS (US) LLC, AS COLLATERAL AGENT
Reel/Frame 063398/0064 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 6, 2015
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: JACOB HOLM & SONS AG
Reel/Frame 034902/0481 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 19, 2012
From: BENIM, THOMAS EDWARD; YOST, BRUCE A.
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 028809/0239 →