Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From lignin – tannin – or derivative reactant
Patent
1983-09-26
1986-04-01
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From lignin, tannin, or derivative reactant
C08H 502
Patent
active
045799270
ABSTRACT:
This invention relates to a polymer and methods for its preparation. The water soluble polymer is especially useful in that it exhibits superior thermal stability characteristics when used as an additive in aqueous drilling fluids. The polymer consists of a minor portion of tannin derived monomers and one or more acrylic monomers. Other monomers are added to enhance the functional characteristic of the polymer. The methods of this invention include either the mixing of monomer followed by polymerization of that mixture, or the preparation of a solution of the tannin monomers and polymerization medium followed by addition and polymerization of the comonomers at a controlled rate. Hydrolysis is an optional step in either method.
REFERENCES:
patent: 2209289 (1940-07-01), Wallace
patent: 2354672 (1944-08-01), Eastes et al.
patent: 2477157 (1949-07-01), Wayne
patent: 2582265 (1952-01-01), Monroe
patent: 2582266 (1952-01-01), Monroe
patent: 2704277 (1955-03-01), Giammaria
patent: 2782241 (1957-02-01), Gray et al.
patent: 2831022 (1958-04-01), Blaricom et al.
patent: 2938893 (1960-05-01), Gray et al.
patent: 3108956 (1963-10-01), Dever et al.
patent: 3230201 (1966-01-01), Hart et al.
patent: 3476795 (1969-11-01), Allan
patent: 3511820 (1970-05-01), Verdol et al.
patent: 3511874 (1970-05-01), Allan
patent: 3535238 (1970-10-01), Kolaian
patent: 3535239 (1970-10-01), Kolaian
patent: 3537992 (1970-11-01), Kolaian
patent: 3546199 (1970-12-01), Christian et al.
patent: 3642622 (1972-02-01), Kablaoui et al.
patent: 3730900 (1973-05-01), Perricone et al.
patent: 3752763 (1973-08-01), Kablaoui et al.
patent: 3768565 (1973-10-01), Persinski et al.
patent: 3856845 (1974-12-01), Sears
patent: 3879298 (1975-04-01), Walker
patent: 3879299 (1975-04-01), Walker
patent: 3907927 (1975-09-01), Guilbault
patent: 3932488 (1976-01-01), Sears
patent: 3953342 (1976-04-01), Martin et al.
patent: 4357245 (1982-11-01), Engelhardt et al.
patent: 4388451 (1983-06-01), Culbertson et al.
patent: 4457790 (1984-07-01), Lindert et al.
Gray, George R. et al., "Composition and Properties of Oil Well Drilling Fluids", 4th Ed. Gulf Publishing Co., Aug. 1981.
Culbertson, B. M. et al. "Copolymerization of Allyl and Methallyl Substituted Phenols with Maleic Anhydride and Maleimides", Polymer Preprints ACS Div. Polym. Chem., 23(1), 1 (1982).
Chen, R. et al., "Graft Copolymerization of Lignosulfonate and Styrene", Journal of Applied Polymer Science, 25, 2211-2220 (1980).
Chen, R. et al., "Study of the Graft Copolymerization of Lignosulfonate and Acrylic Monomers", Journal of Applied Polymer Science, 25, (1980).
Kutner, A. et al., "Sodium Ethylenesulfonate-N-Vinylpyrrolidine Copolymers", Journal of Polymer Science, 38 (1959).
Chesser, B. G. et al., "High Temperature Stabilization of Drilling Fluids with a Low-Molecular-Weight Copolymer", Journal of Petroleum Technology (Jun. 1980).
Russian Publication, "Organic Viscosity Reducers in Clay Solutions", Zhur. Priklad Khem., 35, (1962) (in Russian).
Patel Arvind D.
Sample, Jr. Thomas E.
Dresser Industries Inc.
Sarofim N.
Schofer Joseph L.
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