Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From lignin – tannin – or derivative reactant
Patent
1995-06-05
1997-08-12
Acquah, Samual A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From lignin, tannin, or derivative reactant
530203, 527500, C08H 502
Patent
active
056567081
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.
REFERENCES:
patent: 4676317 (1987-06-01), Fry et al.
patent: 4687828 (1987-08-01), Meister et al.
patent: 4703801 (1987-11-01), Fry et al.
patent: 4889902 (1989-12-01), Meister
patent: 4931527 (1990-06-01), Meister
patent: 4938803 (1990-07-01), Huddleston et al.
patent: 4940764 (1990-07-01), Meister
patent: 5028271 (1991-07-01), Huddleston et al.
patent: 5331088 (1994-07-01), Meister
A. L. McClellan, "Tables of Experimental Dipole Moments", pp. 35, 59, and 79, W.H. Freeman and Company, San Francisco, CA, (1963).
J. Bandrup and E.H. Immergut, "Polymer Handbook", pp. III/1-III/11, Third Edition, Wiley Interscience, NY, (1989).
Van Nostrand's "Scientific Encyclopedia", 5th Edition, (1976).
George Odian, "Principles of Polymerization", 2d ed., John Wiley & Sons, New York, 1981, pp. 194-198, 679.
LandOfFree
Process for making graft copolymers from lignite and vinyl monom does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for making graft copolymers from lignite and vinyl monom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making graft copolymers from lignite and vinyl monom will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-161286