Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1989-07-21
1991-10-01
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524555, 524812, 526932, 526312, C08F 216, C08F 2054
Patent
active
050534483
ABSTRACT:
A method for producing an acidic, concentrated polymeric emulsion that can be diluted and thereafter neutralized to provide a novel polymeric thickener is disclosed. The method comprises emulsion-polymerizing, in acidic aqueous media, a first monomer mixture which comprises an acidic moiety-containing monomer and an ethylenically-unsaturated monomer copolymerizable with the acidic moiety-containing monomer, for producing an alkali-soluble dispersion in the acidic aqueous media. The ethylenically-unsaturated monomer is selected from the group consisting of a mono vinylidene aromatic monomer, an alpha beta ethylenically-unsaturated carboxylic acid ester and its derivatives, a vinyl ester and its derivatives, an ethylenically-unsaturated dicarboxylic anhydride and its derivatives, and mixtures thereof. The method further comprises adding to the alkali-soluble dispersion-containing aqueous media a second monomer mixture which comprises the above-mentioned ethylenically-unsaturated monomer and an amino moiety-containing monomer that is copolymerizable with the ethylenically-unsaturated monomer, and then emulsion-polymerizing the second monomer mixture in the presence of the alkali-soluble dispersion, while maintaining acidic conditions of the aqueous media, for producing the concentrated, polymeric emulsion mentioned above. The concentrated, polymeric emulsion can readily be diluted. Upon being diluted, the thus-diluted polymeric emulsion, upon adjustment of pH to more than about 6.5, provides the novel polymeric thickener mentioned above.
REFERENCES:
patent: 2783212 (1957-02-01), Schnell
patent: 2963453 (1960-12-01), Hwa et al.
patent: 2967175 (1961-01-01), Summers
patent: 3287444 (1966-11-01), Ennor et al.
patent: 3297621 (1967-01-01), Taft
patent: 3366590 (1968-01-01), Taft
patent: 3431226 (1969-03-01), Warson et al.
patent: 3501432 (1970-03-01), Wright et al.
patent: 3501445 (1970-03-01), Faust et al.
patent: 3523097 (1970-08-01), Coover, Jr. et al.
patent: 3532654 (1970-10-01), Finn et al.
patent: 3647086 (1972-03-01), Mizutani et al.
patent: 3657175 (1972-04-01), Zimmermann
patent: 3660537 (1972-05-01), Fryd et al.
patent: 3669942 (1972-06-01), Van Westrenen et al.
patent: 3672889 (1972-06-01), Baltazzi et al.
patent: 3784498 (1974-01-01), Ceska
patent: 3784498 (1974-01-01), Ceska
patent: 3790533 (1974-02-01), Samour
patent: 3817949 (1974-06-01), Ribba
patent: 3839237 (1974-10-01), Battaerd et al.
patent: 3875099 (1975-04-01), Kurth et al.
patent: 3894980 (1975-07-01), DeTommaso
patent: 3915921 (1975-10-01), Schlatzer, Jr.
patent: 3928273 (1975-12-01), Chang et al.
patent: 3966687 (1976-06-01), Ribba
patent: 3968306 (1976-07-01), Yoshihara et al.
patent: 4065523 (1977-12-01), Hutton et al.
patent: 4085167 (1978-04-01), Lewis et al.
patent: 4097420 (1978-06-01), Mikes et al.
patent: 4105649 (1978-08-01), Evani et al.
patent: 4110291 (1978-08-01), Barabas et al.
patent: 4111859 (1978-09-01), Strop et al.
patent: 4112215 (1978-09-01), Boessler et al.
patent: 4115339 (1978-09-01), Restaino
patent: 4125700 (1978-11-01), Graham
patent: 4134815 (1979-01-01), Jackson et al.
patent: 4138380 (1979-02-01), Barabas et al.
patent: 4138381 (1979-02-01), Chang et al.
patent: 4141806 (1979-02-01), Keggenhoff et al.
patent: 4152506 (1979-05-01), Novak
patent: 4153592 (1979-05-01), Burroway et al.
patent: 4167502 (1979-09-01), Lewis et al.
patent: 4190562 (1980-02-01), Westerman
patent: 4221885 (1980-09-01), Schimmel et al.
patent: 4230810 (1980-10-01), Lattime
patent: 4230844 (1980-10-01), Chang et al.
patent: 4259465 (1981-03-01), Barabas
patent: 4268641 (1981-05-01), Koenig et al.
patent: 4276432 (1981-06-01), Rhum et al.
patent: 4289678 (1981-09-01), Calder et al.
patent: 4305859 (1981-12-01), McEwan et al.
patent: 4314044 (1982-02-01), Hughes et al.
patent: 4384096 (1983-05-01), Sonnabend
patent: 4415701 (1983-11-01), Bauer
patent: 4421902 (1983-12-01), Chang et al.
patent: 4424137 (1984-01-01), Avenel et al.
patent: 4434249 (1984-02-01), Ballestrasse et al.
patent: 4447588 (1984-05-01), Rametta
patent: 4448945 (1984-05-01), Fink et al.
patent: 4486581 (1984-12-01), Walinsky
patent: 4509949 (1985-04-01), Huang et al.
patent: 4514552 (1985-04-01), Shay et al.
patent: 4535098 (1985-08-01), Evani et al.
patent: 4537911 (1985-08-01), Chonde
patent: 4554018 (1985-11-01), Allen
patent: 4564644 (1986-01-01), Harris
patent: 4600761 (1986-07-01), Ruffner et al.
patent: 4656222 (1987-04-01), DeFazio
patent: 4760110 (1988-07-01), Das
patent: 4769167 (1988-09-01), Haas et al.
Kirk-Othmer "Encyclopedia of Chemical Technology", Third Edition, vol. 8, pp. 900-930.
Technical Bulletin DB-25, by Merck & Co., Inc., Kelco Division, U.S.A.
"VISCALEX HV30", from an article entitled Allied Colloids by Allied Colloids Inc. Suffolk, VA 23434.
"Aqueous Thickener", which is a printed version of a Society of Cosmetic Chemists presentation (by David Witiak). Rohm and Haas Co., 727 Norristown Rd. Spring House, PA 19477.
"Carbopol" High Performance Polymers for Soaps and Detergents, by the BFGoodrich Company, Specialty Polymers & Chemical Division, 6100 Oak Tree Blvd. Cleveland, Ohio 44131.
S. C. Johnson & Son Inc.
Schofer Joseph L.
Smith Jeffrey T.
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