Abstract:
Viruses are selectively separated from an aqueous mixture of virus and nonviral protein by contacting the aqueous mixture with a water-insoluble polyelectrolyte polymer containing basic groups to selectively sorb the virus on the polymer and then if desired removing the polymer containing the virus from the aqueous mixture. The polyelectrolyte polymers are polycationic or polyampholytic in nature and contain imide groups selected from the group consisting of diloweralkylaminoloweralkylimide groupings and loweralkyliminodi(loweralkylimide) linkages as exemplified by crosslinked dimethylaminopropylimide derivatives of isobutylene/maleic anhydride copolymers.
Abstract:
WATER-INSOLUBLE, CROSS-LINKED POLYELECTROLYTE COPOLYMERS OF (A) AN UNSATURATED MONOMER OF 2 TO 12 CARBON ATOMS AND (B) A MONOMER SELECTED FROM THE GROUP CONSISTING OF (1) A MIXTURE OF AN UNSATURATED POLYCARBOXYLIC ACID OR ANHYDRIDE AND AN UNSATURATED POLYCARBOXYLIC ACID AMINE-IMIDE, AND (2) AN UNSATURATED POLYCARBOXYLIC ACID AMINE-IMIDE, THE POLYMERIC UNITS OF THE POLYELECTROLYTE CONTAINING AT LEAST THREE PERCENT OF AN AMINE-IMIDE GROUP, WHICH GROUP IS A DILOWERALKYLAMINOLOWERALKYLIMIDE GROUP WHEREIN LOWER ALKY HAS 1 TO 5 CARBON ATOMS INCLUSIVE, INCLUDING ACID ADDITION AND QUATERNARY AMMONIUM SALTS THEREOF, THE POLYELECTROLYTE HAVING A MOLECULAR WEIGHT OF AT LEAST 1000. THE POLYELECTROLYTES ARE USED FOR PURIFYING WATER CONTAMINATED WITH VIRUSES, COLIFORM BACTERIA, OTHER MICROORGANISMS OR SURFACE ACTIVE AGENTS BY ADSORPTION.
Abstract:
The level of blood cholesterol in a living animal body in which a state of hypercholesterolemia exists is lowered by orally administering to said animal body a pharmaceutically effective amount of a polymer, which is (1) polymerized unsaturated carboxylic acid or anhydride, or (2) a copolymer of (a) an unsaturated monomer having, for Example, 2 to 30 carbon atoms and, (b) an unsaturated carboxylic acid, anhydride or derivative thereof as exemplified by octadecene-1/maleic anhydride copolymer. Polymers having lipophilic properties are a preferred class. A typical dosage is an amount which represents in the range of from about 0.01 to about 5.0% of the diet.
Abstract:
THE TREATMENT OR PREVENTION OF GASTRO-ENTERITIS DIARRHEAL SYNDROME (IDARRHEA) IN A LIVING ANIMAL BODY IS ACCOMPLISHED BY ORALY ADMINISTERING TO SAID ANIMAL BODY A THERAPEUTICALLY EFFECTIVE AMOUNT OF A BASIC POLYELECTROLYTE POLYMER, WHICH IS (A) A POLYMERIZED UNSATURATED CARBOXYLIC ACID OR ANHYDRIDE AND A DERIVATIVE OF A POLYMERIZED UNSATURATED CARBOXYLIC ACID OR ANHYDRIDE, (B) A DERIVATIVE OF A POLYMERIZED UNSATURATED CARBOXYLIC ACID OR ANHYDRIDE OR (C) A COPOLYMER OF (1) AN UNSATURATED MONOMER HAVING 2 TO 18 CARBON ATOMS AND (2) A MONOMER SELECTED FROM THE GROUP CONSISTING OF (A) AN UNSATURATED CARBOXYLIC ACID OR ANHYDRIDE AND A DERIVATIVE OF AN UNSATURATED CARBOXYLIC ACID OR NHYDRIDE AND (B) A DERIVATIVE OF AN UNSATURATED CARBOXYLIC ACID OR ANHYDRIDE, AS EXEMPLIFIED BY N,N-DIMETHYLAMINOPROPYLIMIDE OF ETHYLENE/MALEIC ANHYDRIDE COPOLYMER. THE BASIC POLYMER IS POLYCATIONIC OR POLYAMPHOLYTIC IN NATURE. TYPICAL DOSAGE IS 0.05 TO 5.0% OF THE TOTAL DIET.
Abstract:
A process for making a continuous filament from discrete particulate matter including particles and fibers and mixtures thereof which may be initially packed and oriented in any random fashion. The particulate matter is added to a reaction vessel having a pair of electrodes therein. A strong electrokinetic field is established in this vessel and this electrokinetic field will untangle and properly orient the various random fibers and particulate matter through its influence. This action will cause close packing of the particulate matter in a desired pattern. Furthermore, the orientation is made to take place in a polymeric composition or resin matrix system so that the particulate matter is not only oriented, but held in the oriented position without the aid of the electrokinetic field. During the process of alignment and polymerization or partial polymerization, the continuous filament is formed and simultaneously removed outwardly from the vessel and then fully cured.