US 6,818,295 B2Granted

Fibers comprising starch and polymers

AssigneeThe Procter & Gamble Company

InventorsEric Bryan Bond, Jean-Philippe Marie Autran, Larry Neil Mackey, Isao Noda, Hugh Joseph O'Donnell, Dean Van Phan

Life of this patent

Estimating the term…

Abstract

The present invention is directed to highly attenuated fibers produced by melt spinning a composition comprising destructurized starch, a thermoplastic polymer, and a plasticizer. The present invention is also directed to highly attenuated fibers containing microfibrils which are formed within the starch matrix. Nonwoven webs and disposable articles comprising the highly attenuated fibers are also disclosed.

Claims9

Dependent claims

A highly attenuated fiber comprising:

a. destructurized starch,
b. a thermoplastic polymer, and
c. a plasticizer,
wherein the fiber has less than 1% free water.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 10/294,419Filed 14 Nov 2002 · continuation in part
Priority: 10 May 2001
Published: US 2003/0091803 A115 May 2003
Granted: 16 Nov 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

D01F 6/92
From mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds: of polyesters
D01F 6/46
From mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or…: of…
D01F 6/50
From mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or…: of…
D01F 6/52
From mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or…: of…

Family

Application09/853,130Parent of this continuation-in-part · filed 10 May 2001
US 2003/0091803 A1Pre-grant publication · published 15 May 2003
US 2002/0168518 A1Published application
US 6,818,295 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

patentgrep

Loading patent…

patentgrepSearch patents

Back to results