US 4,786,438 AGranted

Lignosulfonate/urea binder for particulate composites

AssigneeGeorgia-Pacific Corporation

InventorKenneth A. E. Blackmore

Life of this patent

Estimating the term…

Abstract

A coherent particulate composite is formed by blending particulate material with a binder containing lignosulfonate and urea.

Claims4

Dependent claims

A coherent particulate composite comprising a uniform mixture of particulate material and 5-30% by weight of a binder, said binder comprising approximately equal parts by weight of urea solids and lignosulfonate solids.

Dependencies are inferred from the claim text.

Facts

Application: 07/085,848Filed 10 Aug 1987 · division
Priority: 8 Mar 1983
Granted: 22 Nov 1988
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H01B 1/04
Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors: mainly consisting of…
C04B 35/532
Obtained from carbonaceous particles with or without other non-organic components: containing a carbonisable binder
C09J 197/005
Adhesives based on lignin-containing materials: lignin
C10L 5/14
With the aid of binders, e.g. pretreated binders: with organic binders

Family

Serial472,881Parent of this division · filed 8 Mar 1983
US 4,704,230 AParent of this division
US 4,786,438 AThis patent

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

Timeline

Citations

Open elsewhere

patentgrep

Loading patent…

Back to results