US 2022/0033995 A1 · ALGINATE-BASED FIBERS AND USES THEREOF

Alginate-based fibers and uses thereof

AssigneesThe Trustees of Columbia University in the City of New York, Fashion Institute of Technology

InventorsTheanna Schiros, Asta Skocir, Aaron Nesser, Tessa Callaghan, Aleksandra Gosiewski, Sebastian Thomas Russell, Dong An, Romare Antrobus, Chris Mosher, Helen Lu

Life of this patent

Estimating the term…

Abstract

An alginate-based fiber is made of a composition comprising an alginate, a cellulose and a polyol plasticizer, such as glycerol. The fiber is produced through extrusion in a curing bath containing calcium. The fiber provides excellent strength and flexibility in its unhydrated state for textile applications. The fiber can be used to produce textiles as compostable alternatives to petrochemical based polymers.

Claims15

Dependent claims

An alginate composition comprising:

sodium alginate;
methyl cellulose;
and
a polyol plasticizer, wherein:
the polyol plasticizer is a glycerol,
an amount of sodium alginate ranges from about 3.75 wt % to about 7.85 wt % of the total mass,
an amount of methyl cellulose is about 50 wt % to about 90 wt % of sodium alginate, and
an amount of glycerol ranges from about 25 wt % to about 250 wt % of a total amount of sodium alginate and methyl cellulose.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/299,563Filed 5 Dec 2019

Priority

7 Dec 2018

Published

3 Feb 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

A23L 2/52
Non-alcoholic beverages; Dry compositions or concentrates therefor ; Preparation or treatment thereof: adding ingredients
D01F 2/28
From cellulose derivatives: from organic cellulose esters or ethers, e.g. cellulose acetate
C08L 1/28
Cellulose ethers: alkyl ethers
D01D 1/02
Treatment of filament-forming or like material: preparation of spinning solutions