Abstract: What is provided herein is a method for treating acne vulgaris with a composition containing a stable, high purity, substantially anhydrous complex of PVP and H.sub.2 O.sub.2 in which the constituents are present respectively in substantially a 1:1 molar ratio and the complex is a free-flowing, fine white powder.

Abstract: What is provided herein are substantially anhydrous complexes of PVP and H.sub.2 O.sub.2 in molar ratios of between about 2:1 and 1:1, respectively, which corresponds to between about 13% and about 23% by weight H.sub.2 O.sub.2. The complexes of the invention are prepared by an anhydrous process whereby substantially uniform, free-flowing, fine white powders are obtained.

Abstract: A process for the production of PVP-H.sub.2 O.sub.2 products in the form of free-flowing powders is described in which a fluidized bed maintained at a reaction temperature of about room temperature to 60.degree. C. is contacted with finely divided droplets of a 30 to 85% by weight aqueous H.sub.2 O.sub.2 solution. Preferably the fluidized bed temperature is about 35.degree.-45.degree. C., a 50-70% H.sub.2 O.sub.2 solution is used, and the feed rate of introduction of the H.sub.2 O.sub.2 solution is about 5-50 g/minute/kg PVP present. The PVP-H.sub.2 O.sub.2 product preferably contains about 15-24%, preferably 18-22%, H.sub.2 O.sub.2 (1:1 molar ratio) and less than about 5% water.

Abstract: What is provided herein is a semi-anhydrous, suspension process for preparing substantially anhydrous complexes of PVP and H.sub.2 O.sub.2 containing about 18% to about 22% by weight H.sub.2 O.sub.2. The process comprises suspending substantially anhydrous PVP and an aqueous solution of 70 to 85% H.sub.2 O.sub.2 in an anhydrous ethyl acetate medium to precipitate a free-flowing, fine white powders of the complex, and filtering and drying under vacuum at about 40.degree.-50.degree. C. to form the desired product.

Abstract: Solubility of chlorhexidine free base and hydrocarbon substituted lactams in water is substantially enhanced by forming an aqueous solution of a complex of chlorhexidine free base and lactam. This is preferably done by dissolving chlorhexidine free base in lactam and then mixing the resulting solution with water. The resulting aqueous solution contains between about 1 and about 25 wt % of a complex of lactam and chlorhexidine with chlorhexidine being present in amounts between about 0.08 and about 0.25 wt % based on lactam. Lactam used is defined by the formula ##STR1## wherein n is an integer having a value of from 1 to 3 and R is a linear alkyl radical containing from 10 to 14 carbon atoms.

Abstract: What is provided herein are substantially anhydrous complexes of PVP and H.sub.2 O.sub.2 in molar ratios of between about 2:1 and 1:1, respectively, which corresponds to between about 13% and about 23% by weight H.sub.2 O.sub.2. The complexes of the invention are prepared by an anhydrous process whereby substantially uniform, free-flowing, fine white powders are obtained.

Abstract: What is provided herein is a method for reducing the microbial content of surfaces which comprises contacting said surface with a microbiocidal amount of a substantially anhydrous complex of PVP and H.sub.2 O.sub.2.

Abstract: What is described herein are polymerizable pyrrolidonyl 4,5-unsubstituted oxazoline monomers, homopolymers thereof, and copolymers with other monomers. A preferred polymerizable monomer compound is 2-(1-methyl-2-pyrrolidon-4-yl)-2-oxazoline. The polymers herein have excellent hydrotropic properties thus increasing the water solubility of organic compounds previously considered as water insoluble, and exhibit complexation with water soluble cosolutes.

Abstract: A water soluble complex of polyvinylpyrrolidone, hydrogen chloride and iodine, and a process for making the same, is provided herein.

Abstract: The invention relates to 5-oxo-3-pyrrolidinecarboxylic acid derivatives having the structural formula ##STR1## wherein X is selected from the group of ##STR2## R.sub.2 and R.sub.3 are each H or CH.sub.3, and R.sub.1 is H or a hydrocarbon radical having from 1 to 20 carbon atoms, which derivative compounds are suitable as monomers which can be homopolymerized or copolymerized to yield high molecular weight materials having many useful properties and applications, among which is their ability to form complexes with water insoluble molecules which are normally not complexible with similar type polymers.

Abstract: The invention relates to 5-oxo-3-pyrrolidinecarboxylic acid derivatives having the structural formula ##STR1## wherein X is selected from the group of ##STR2## R.sub.2 and R.sub.3 are each H or CH.sub.3, and R.sub.1 is H or a hydrocarbon radical having from 1 to 20 carbon atoms, which derivative compounds are suitable as monomers which can be homopolymerized or copolymerized to yield high molecular weight materials having many useful properties and applications, among which is their ability to form complexes with water insoluble molecules which are normally not complexible with similar type polymers.

Abstract: What is described herein are polymerizable pyrrolidonyl 4,5-unsubstituted oxazoline monomers, homopolymers thereof, and copolymers with other monomers. A preferred polymerizable monomer compound is 2-(1-methyl-2-pyrrolidon-4-yl)-2- oxazoline. The polymers herein have excellent hydrotropic properties thus increasing the water solubility of organic compounds previously considered as water insoluble, and exhibit complexation with water soluble consolutes.

Abstract: Antimicrobial polymeric bisbiguanides capped with alkylene pyrrolidonyl groups having the formula: ##STR1## where X is C.sub.2 -C.sub.4 alkylene; Y is a bivalent bridging group; and n is at least 2; and acid addition salts thereof.

Abstract: Antimicrobial bis-(pyrrolidonyl alkylene) biguanides having the formula:A--Z--Awhere A is: ##STR1## X is C.sub.2 -C.sub.4 alkylene; and Z is a bivalent bridging group, and acid addition salts thereof,are provided herein.

Abstract: The invention relates to 5-oxo-3-pyrrolidinecarboxylic acid derivatives having the structural formula ##STR1## wherein X is selected from the group of ##STR2## R.sub.2 and R.sub.3 are each H or CH.sub.3, and R.sub.1 is H or a hydrocarbon radical having from 1 to 20 carbon atoms, which derivative compounds are suitable as monomers which can be homopolymerized or copolymerized to yield high molecular weight materials having many useful properties and applications, among which is their ability to form complexes with water insoluble molecules which are normally not complexible with similar type polymers.

Abstract: A water soluble complex of polyvinylpyrrolidone, hydrogen chloride and iodine, and a process for making the same, is provided herein.

Abstract: What is described herein are polymerizable pyrrolidonyl 4,5-unsubstituted oxazoline monomers, homopolymers thereof, and copolymers with other monomers. A preferred polymerizable monomer compound is 2-(1-methyl-2-pyrrolidon-4-yl)-2-oxazoline. The polymers herein have excellent hydrotropic properties thus increasing the water solubility of organic compounds previously considered as water insoluble, and exhibit complexation with water soluble cosolutes.

Abstract: A method of conditioning hair by applying thereto a quaternary ammonium polymers having formula ##STR1## wherein R' and R" may be the same or different alkyl groups of from 1 to 18 carbon atoms, optionally substituted by from 1 to 2 hydroxyl groups or, when taken together, with N form a saturated or unsaturated ring of from 5 to 7 atoms, or when taken together with N and an oxygen atom form the N-morpholino group; wherein Z is --CH.sub.2 CH.dbd.CHCH.sub.2 -- when Z' is --CH.sub.2 CHOHCH.sub.2 -- or Z is --CH.sub.2 CHOHCH.sub.2 -- when Z' is --CH.sub.2 CH.dbd.CHCH.sub.2 --; wherein X is a halogen of atomic weight greater than 30; wherein Y and Y' may be either the same or different and may be either X or --NR'R"; and wherein n is an integer of from 2 to 20.

Abstract: A skin care additive for cosmetic compositions comprising uncapped linear polyquaternary ammonium compounds, the term "uncapped" being used to define those molecules whose termini are capable of further chain propogation.

Abstract: A method of water treatment to cause flocculation of immiscible material in aqueous suspension, which comprises applying to the water a quaternary ammonium polymer having the formula ##STR1## wherein R' and R" may be the same or different alkyl groups of from 1 to 18 carbon atoms, optionally substituted by from 1 to 2 hydroxyl groups or, when taken together, with N form a saturated or unsaturated ring of from 5 to 7 atoms, or when taken together with N and an oxygen atom form the N-morpholino group; wherein Z is --CH.sub.2 CH.dbd.CHCH.sub.2 -- when Z' is --CH.sub.2 CHOHCH.sub.2 -- or Z is --CH.sub.2 CHOHCH.sub.2 -- when Z' is --CH.sub.2 CH.dbd.CHCH.sub.2 --; wherein X is a halogen of atomic weight greater than 30; wherein Y and Y' may be either the same or different and may be either X or --NR'R" and wherein n is an integer of from 2 to 20.