US 2025/0154344 A1Published application

Melt-processable cellulose ester compositions, melts and melt-formed articles made therefrom

AssigneeEastman Chemical Company

InventorsGUARAV AMARPURI, MICHAEL EUGENE DONELSON, RAHUL SHANKAR

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Abstract

A melt-processable, plasticized cellulose ester composition is described. The melt-processable, plasticized cellulose ester composition of the present invention includes (i) cellulose ester; (ii) plasticizer; and (iii) a sulfonated isophthalic acid material or salt thereof. Cellulose acetate melts and melt-formed articles are also described.

Claims20

Dependent claims

A melt-processable plasticized cellulose ester composition, said composition comprising (i) cellulose ester;

(ii) plasticizer;
and (iii) a polymer comprising aromatic sulfonate repeat units.

Dependencies are inferred from the claim text.

Facts

Application: 18/838,281Filed 14 Feb 2023
Priority: 16 Feb 2022
Published: 15 May 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

C08L 1/12
Esters of organic acids , i.e. acylates: cellulose acetate
C08J 9/0061
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof: characterized by the use of several…
C08L 71/02
Compositions of polyethers obtained by reactions forming an ether link in the main chain ; Compositions of derivatives of such polymers:…
C09D 101/12
Esters of organic acids: cellulose acetate

Family

Application63/268,079Us provisional application · filed 16 Feb 2022
US 2025/0154344 A1This patent

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

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