Chemistry: natural resins or derivatives; peptides or proteins; – Natural resins or derivatives – Plant sap or fossil starting material used in process – or...
Patent
1992-11-16
1994-07-19
Kight, III, John
Chemistry: natural resins or derivatives; peptides or proteins;
Natural resins or derivatives
Plant sap or fossil starting material used in process, or...
527400, C08H 502
Patent
active
053310888
ABSTRACT:
A process for making a water-insoluble, graft copolymer of lignite-(ethene or substituted ethene monomer) having a central lignite network and at least one grafted side chain, R, having "m" repeating units of (1-phenylethylene), 1-methyl-1-(1-oxo-2-oxypropyl)ethylene, a polymerized 2-methyl-3-oxo-4-oxybut-1-ene-(p-ethoxy-(3*p+3)-ol, or any other substituted ethene monomer which has a dipole moment of less than 1.2 or a water solubility of less than 5 g/100 g water at 30.degree. C. The ethene monomer forms the sidechain by free radical polymerization and, in the sidechain, m and p vary from 1 to 300,000 such that the central lignite network has a molecular weight of about 1,000 to 1,500,000; the total number of random units in a grafted side chain is in the range of 1 to 300,000 units; and the total number of sidechains attached to lignite, x, is in the range of 1 to 500; such that the total copolymer molecular weight is in the range of 1,500 to 30,000,000. This process makes a material which is a hard, strong, thermoplastic that can be molded, cast, and extruded into parts, equipment, and consumer items.
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Jones Richard
Kight III John
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