IP Library › Granted Patent US 8,383,784
Granted Patent B2
US 8,383,784 · App. 12/551,388 · Granted Feb 26, 2013

Lignothermoplastic

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Quick Facts
Patent No.
US 8,383,784
App. No.
12/551,388
Granted
Feb 26, 2013
Kind
B2
Abstract

A thermoplastic material made from lignin, polyol and a melting point reducer where the melting point reducer is miscible in the specific polyol employed and where the lignin, polyol and melting point reducer are all miscible when in their melted state.

Claims (2)

1. A thermoplastic material comprising a mixture of (a) from about 50 to 85 weight percent of lignin; and (b) from about 15 to 50 weight percent of a 1,3-propanediol.

2. The thermoplastic material of claim 1 , wherein the lignin is present in an amount from about 75 to 85 weight percent and the 1,3-propanediol is present in an amount from about 15 to 25 weight percent.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 5, 2019
From: WEYERHAEUSER NR COMPANY
To: INTERNATIONAL PAPER COMPANY
Reel/Frame 049964/0838 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 28, 2009
From: PARK, DAVID W; NEOGI, AMAR N; FURTNER, LUDWIG, JR
To: WEYERHAEUSER NR COMPANY
Reel/Frame 023289/0941 →