Broken-down organic lignin-cellulose silicate polymers

• US 4,313,857 A
• Filed: 04/24/1981
• Issued: 02/02/1982
• Est. Priority Date: 04/12/1979
• Status: Expired due to Fees

• Current Assignee: David H. Blount
• Original Assignee: David H. Blount
• Inventors: Blount, David H.
• Primary Examiner(s): Foelak, Morton
• Application Number:
  US06/257,126
• Time in Patent Office: 284 Days
• Field of Search: 260/13, 260/124 R, 521/110, 521/112, 521/154, 525/356, 525/386, 528/44, 528/29, 528/25, 536/111
• US Class Current: 527/300
• CPC Class Codes: C08B 15/05 Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur esters or phosphorous acids C08B5/00
• CPC Class Codes: C08G 18/6484 Polysaccharides and derivatives thereof
• CPC Class Codes: C08G 2101/00 Manufacture of cellular products
• CPC Class Codes: C08H 6/00 Macromolecular compounds derived from lignin, e.g. tannins, humic acids
• CPC Class Codes: C08J 2301/02 Cellulose; Modified cellulose
• CPC Class Codes: C08J 9/02 using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules

Abstract

Small particles of cellulose-containing plants are mixed with an alkali metal hydroxide and an oxidated silicon compound, then heated to 150° C. to 220° C. while agitating, thereby producing a broken-down lignin-cellulose silicate polymer which is then reacted with a substituted organic compound to produce an organic broken-down lignin-cellulose silicate polymer and may be used as molding powder and as a coating agent.

Claims

1. The process for the production of broken-down organic lignin-cellulose silicate polymer by mixing and reacting the following components:

Component (a);

Broken-down alkali metal lignin-cellulose silicate polymer;

Component (b);

A substituted organic compound having a substituent which will split off during the reaction, to said broken-down alkali metal lignin-cellulose polymer in the amount wherein the mols of the substituted radicals are about equal to the mols of the alkali radicals in the mixture.

2. The process of claim 1 wherein the substituted organic compound contains at least one substituent, selected from the group consisting of acid sulfate, nitrate, sulfate, acid phosphate, bicarbonate, formate, acetate, propionate, laurate, oleate, stearate, oxalate, acid malonate, acid tartrate, acid citrate, halogens, and mixtures thereof.

3. The process of claim 1 wherein an emulsifying or dispersing agent selected from the group consisting of lignin sulfonates, alkyl aryl sulfonates, aryl alkyl sulfonates, sorbitan monolaurates, alkyl aryl sulfates, methyl cellulose, sulfonated petroleum fractions, polymerized alkyl aryl sulfonates, polymerized aryl alkyl sulfonates, soybean lecithin, silicone surfactants and mixtures thereof in an aqueous solution is added to the unreacted mixture.

4. The process of claim 1 wherein lignin sulfonate in an aqueous solution is added to the unreacted mixture as an emulsifying or dispersing agent.

5. The process of claim 1 wherein the substituted organic compound is an alkyl halide.

6. The product produced by the process of claim 1.

7. The process of claim 1 wherein the broken-down alkali metal lignin-cellulose silicate polymer is first added to a solvent selected from the group consisting of water, methanol, ethanol, isopropyl alcohol, ethylene glycol, propylene, glycol, glycerol, furfuryl alcohol, polyester polymer with 2 or more hydroxyl groups, sucrose amine polymer with 2 or more hydroxyl groups, polyether polymers with 2 or more hydroxyl groups and mixtures thereof.

8. The process of claim 1 wherein the broken-down alkali metal lignin-cellulose silicate polymer is first reacted with an aldehyde selected from the group consisting of formaldehyde, acetaldehyde, propionic aldehyde, furfural, crotonaldehyde, acrolein, butyl aldehyde, paraformaldehyde, pentanals, hexanals, heptanals and mixtures thereof in the ratio of 1 to 5 parts by weight of the aldehyde to 2 parts by weight of the broken-down alkali metal lignin-cellulose silicate polymer.

9. The produce produced by the process of claim 8.