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| Number | Title | Issue Date |
| 5066709 | Bioadhesive composition This invention relates to superior bioadhesive compositions having time extended adhesive properties comprising a non-toxic carrier and a polymer having between about 45 and about 70 weight % of units having the structure ##STR1## between about ... | 11/19/1991 |
| 5051597 | Radiation dosage indicator A multi-ply radiation dosage indicator, and method of manufacture, is disclosed including a first ply having visible indicia thereon and a second ply having a radiation sensitive zone overlying the indicia of the first ply. The radiation sensitive zone is... | 09/24/1991 |
| 5045572 | Radiation curable cross linkable compositions containing an aliphatic polyfunctional alkenyl ether This invention relates to a radiation curable crosslinkable composition containing (a) from about 0.1 to about 5 wt. % of an initiator containing at least 25% cationic initiator, (b) from about 0 to about 60 wt. % of a polymerizable vinyl ether, epoxide, ... | 09/03/1991 |
| 5045194 | Filter apparatus having a bag with handles A filter apparatus having a bag filter subassembly for collecting contaminating material. The bag filter subassembly includes a bag filter having a top end portion and a gasket ring having a goove receiving the top end portion. The gasket ring has a pair ... | 09/03/1991 |
| 5041564 | Vapor phase process for production of gamma-butyrolactone What is provided herein is a vapor phase process for the production of butyrolactone in which the vapor mixture of the feed compound and hydrogen is provided at high flow rates from finely divided droplets of the feed compound which are vaporized rapidly ... | 08/20/1991 |
| 5039716 | Alk-1-enyl ether silicates and radiation curable composition containing alk-1-enyl ether silicates Subject invention relates to alk-1-enyl ether silicates having the formula [X]4-n Si[OR1 OCH.dbd.CH--R2 ]n wherein X is halogen or --OR wherein R is lower alkyl or a mixture of halogen and OR, a mixture of OR and hydrogen... | 08/13/1991 |
| 5039410 | Filter apparatus having a bag with a gasket A filter apparatus having a bag filter subassembly for collecting contaminating material. The bag filter subassembly includes a bag filter having a top end portion and a gasket ring having a groove receiving the top end portion. The gasket ring is a molde... | 08/13/1991 |
| 5037930 | Heterocyclic quaternized nitrogen-containing cellulosic graft polymers In this invention, at least two monomers are grafted onto hydroxy-containing cellulose polymer. The invention thus provides a polymer of a cellulose containing a hydroxy group on which is grafted, by replacement of the hydrogen atom of the hydroxy group, ... | 08/06/1991 |
| 5037924 | Denture adhesive According to this invention, there is provided a denture adhesive which is a mixed partial salt of a terpolymer of maleic anhydride, (MA) a C1 -C4 alkyl vinyl ether (AVE) and isobutylene (IB) vinyl ether, having a weight average mole... | 08/06/1991 |
| 5036112 | Cross-linkable vinyl ether polyacetal oligomers This invention relates to a cross-linkable, cationic radiation curable composition comprising (a) a non-volatile vinyl ether, epoxide, acrylate or an oligomer thereof (b) a cationic photoinitiator and (c) a divinyl ether polyacetal oligomer having the for... | 07/30/1991 |
| 5035829 | Paint removing compositions Water soluble paint remover compositions for the removal of uncured paint are disclosed which avoid the use of toxic organic solvent, in particular, methylene chloride. The inventive compositions comprise an organic carboxylic acid, N-methyl-2-pyrrolidone... | 07/30/1991 |
| 5034488 | Slurry polymerization of crosslinked maleic anhydride-alkyl vinyl ether copolymers in a solvent system comprising a carboxylic acid ester and a saturated hydrocarbon A polymerization process is described herein for making crosslinked copolymers of maleic anhydride and an alkyl vinyl ether characterized in that polymerization is carried out in a solvent system which is a mixture of a carboxylic acid ester and a saturat... | 07/23/1991 |
| 5034486 | Terpolymers of maleic anhydride, C1 -C5 alkyl vinyl ether and a C12 -C14 alpha-olefin, and crosslinked products thereof Terpolymers of maleic anhydride, a C1 -C5 alkyl vinyl ether and a C12 -C14 alpha-olefin, and crosslinked products thereof, are provided herein for use in thickener, adhesive, sunscreen, hair spray, and waterproo... | 07/23/1991 |
| 5034220 | Non-aerosol shaving gel A non-aerosol shaving gel of the invention consists essentially of a major amount of a resin gel-former which is a crosslinked, neutralized copolymer of maleic anhydride and a C1 -C5 alkyl vinyl ether, a water-soluble soap and water.... | 07/23/1991 |
| 5034487 | Process for making copolymers of maleic anhydride and a C1 -C4 alkyl vinyl ether having a high specific viscosity What is described herein is a process for making a copolymer of high specific viscosity by polymerization of maleic anhydride and a C1 -C4 alkyl vinyl ether monomer. The invention involves polymerizing said monomers to form a slurry ... | 07/23/1991 |
| 5032391 | Hair styling gel composition This invention relates to a hair styling gel containing a neutralized, crosslinked maleic anhydride C1 -C5 -alkyl vinyl ether copolymer. The formulation is a clear gel of suitable viscosity and pH. This composition provides effective... | 07/16/1991 |
| 5026810 | Vinyl ether siloxanes This invention reltes to vinyl ether siloxanes having the formula ##STR1## wherein Y is alkylene or phenylene optionally substituted with fluorine, R is alkylene or alkylene phenylene, R1 and R2 are lower alkyl, R3 is C1 | 06/25/1991 |
| 5024779 | Creamy nail polish remover containing hydrolyzed and neutralized maleic anhydride C1 -C4 alkyl vinyl ether copolymer What is disclosed herein is a nail polish remover composition having a cream-like consistency, and, in use, leaves a thin, bufferable coating on the nail which does not yellow, peel or crack, is non-toxic, and which can be removed easily with soap and wat... | 06/18/1991 |
| 5015708 | Precipitation polymerization of terpolymers of a vinyl lactam, a polymerizable carboxylic acid and a hydrophobic monomer in an aliphatic hydrocarbon solvent What is described herein is a precipitation polymerization process and terpolymer products produced thereby. Polymerization is carried out in a reaction mixture of a vinyl lactam, e.g. vinyl pyrrolidone or vinyl caprolactam, a polymerizable carboxylic aci... | 05/14/1991 |
| 5011941 | Quaternized nitrogen containing compounds The invention relates primarily to quaternized compounds having the formula ##STR1## wherein n and n' are each independently integers having a value of from 1 to 25; p is an integer having a value of from 1 to 4; Y and Y' are each independently H or ... | 04/30/1991 |
| 5012011 | Fluorinated vinyl ether This invention relates to fluorinated vinyl ethers having the formula ##STR1## wherein t has a value of from 1 to 22; R' is C2 to C20 alkylene, alkoxyalkylene, arylene or aryloxyalkylene which radicals are optionally fluorinated... | 04/30/1991 |
| 5011895 | Precipitation polymerization of copolymers of a vinyl lactam and a polymerizable carboxylic acid using sub-surface feeding What is described herein is an improved precipitation polymerization process and copolymer products produced thereby. The process herein is carried out by charging a reactor with a solvent in which the copolymer product is substantially insoluble over the... | 04/30/1991 |
| 5008038 | Solubilization of lactam and chlorhexidine in water 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 i... | 04/16/1991 |
| 5008093 | Anhydrous complexes of PVP and hydrogen peroxide What is provided herein are substantially anhydrous complexes of PVP and H2 O2 in molar ratios of between about 2:1 and 1:1, respectively, which corresponds to between about 13% and about 23% by weight H2 O2. Th... | 04/16/1991 |
| 5008104 | Quaternized nitrogen containing compounds The invention relates primarily to quaternized compounds having the formula ##STR1## wherein n and n' are each independently integers having a value of from 1 to 25; p is an integer having a value of from 1 to 4; Y and Y' are each independently H or ... | 04/16/1991 |
| 5008355 | Slurry polymerization of maleic anhydride and acrylic acid in a cosolvent system of ethyl acetate and cyclohexane Slurry copolymerization of maleic anhydride with (meth)acrylic acid and, optionally, with C1 -C4 alkyl vinyl ether in a cosolvent system of cyclohexane and ethyl acetate yields a pumpable slurry, from which uniform, fine, white powde... | 04/16/1991 |
| 5008367 | Poly(pyrrolidonyl oxazoline) 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 ... | 04/16/1991 |
| 5008106 | Method for reducing the microbial content of surfaces with a microbiocidal, anhydrous complex of PVP-H2 O2 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 H2 O2.... | 04/16/1991 |
| 5006595 | Solubilization of complexes of water-insoluble organic compounds by aqueous solutions of polyvinylpyrrolidone A method for increasing the water-solubility of highly insoluble organic compounds by forming a complex product from the reaction between the organic compound and an aqueous solution of solid polyvinylpyrrolidone. The solubility of the organic compound ca... | 04/09/1991 |
| 5002852 | Recording medium of improved stability The invention relates to a polyacetylenic recording film of improved resistance to degradation by UV light and increased sensitivity to ionizing radiation and to the process for producing said film which comprises dissolving polyacetylenic imaging crystal... | 03/26/1991 |
| 5003014 | Process for making copolymers of maleic anhydride and a C1 -C4 alkyl vinyl ether having a predetermined specific viscosity What is described herein is a process for making copolymers of maleic anhydride and C1 -C4 alkyl vinyl ethers of predetermined specific viscosities extending over a wide viscosity range. The invention is characterized by (a) precharg... | 03/26/1991 |
| 5002763 | Water soluble complexes of polyvinylpyrrolidone, hydrogen chloride and iodine and process for making the same A water soluble complex of polyvinylpyrrolidone, hydrogen chloride and iodine, and a process for making the same, is provided herein.... | 03/26/1991 |
| 4997952 | N-pyrrolidonyl methyltriphenyl phosphonium salts and method for their preparation and use A novel triphenylphosphonium salts of chloromethyl pyrrolidone having the formula: ##STR1## wherein R1, R2, and R3 may be the same or different and may be hydrogen, lower alkyl, lower alkoxy, lower alkenyl, lower cycl... | 03/05/1991 |
| 4992517 | Process for production of copolymers of maleic anhydride and an alkyl vinyl ether in a sterically hindered monoether solvent What is described herein is a process for making copolymers of maleic anhydride and a C1 -C8 alkyl vinyl ether. In this process, a reactor is precharged with a solution of maleic anhydride in a sterically hindered monoether solvent a... | 02/12/1991 |
| 4987210 | Polymerizable derivatives of 5-oxo-pyrrolidinecarboxylic acid The invention relates to 5-oxo-3-pyrrolidinecarboxylic acid derivatives having the structural formula ##STR1## wherein X is selected from the group of ##STR2## R2 and R3 are each H or CH3, and R1 is H ... | 01/22/1991 |
| 4985487 | Zwitterion polymers Zwitterion polymers are provided herein having the formula: ##STR1## where R is OR', where R' is C1 -C8 alkyl or a lactam, X is oxygen or nitrogen, n is 2-10, and R1 and R2 are each independently C1 -C | 01/15/1991 |
| 4985521 | Polymerizable derivatives of 5-oxo-pyrrolidinecarboxylic acid The invention relates to 5-oxo-3-pyrrolidinecarboxylic acid derivatives having the structural formula ##STR1## wherein X is selected from the group of ##STR2## R2 and R3 are each H or CH3, and R1 is H ... | 01/15/1991 |
| 4985290 | Protective coatings for polyacetylenic recording media The invention relates to a light stabilizing and antioxidant coating for polyacetylenic recording media which comprises an aqueous composition of ascorbic acid, gelatin and less than 2% by weight of surfactant wherein the mole ratio of acid to gelatin is ... | 01/15/1991 |
| 4983425 | Vapor phase hardening of curable organic compounds This invention relates to a process for hardening a curable normally liquid hydrocarbon compound optionally substituted with an alkyloxy, ester aldehyde, amido, halo, sulfonate, sulfate, sulfite, mercapto or nitro group and containing at least one functio... | 01/08/1991 |
| 4981974 | Polymerizable pyrrolidonyl oxazoline monomers 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... | 01/01/1991 |
