Plural Amide Group Containing Patents (Class 526/306)
  • Patent number: 5338815
    Abstract: A fine particulate crosslinked type N-vinylcarboxylic acid amide resin having an average particle size of 10 .mu.m or less comprising backbone chains of a homopolymer or copolymer comprising repeating units (A) or (A) and (B) of the formulae: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom or methyl group; X represents a group --COOY, wherein Y represents a hydrogen atom, an alkali metal, a C.sub.1 -C.sub.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: August 16, 1994
    Assignee: Showa Denko K.K.
    Inventors: Toshiyuki Aizawa, Hitoshi Nakamura, Tetsuhiko Yamaguchi
  • Patent number: 5336742
    Abstract: Azlactone-functional polymer supports are useful reactive supports for the attachment of functional materials to provide novel adduct beads. The adduct beads are useful as complexing agents, catalysts, polymeric reagents, chromatographic supports, and as enzyme- or other biologically active supports. Novel carboxylate-functional polymer beads, are intermediates in the preparation of the azlactone-functional beads.Azlactone-functional supports have units of the formula: ##STR1## wherein R.sup.1 is H or CH.sub.3,R.sup.2 and R.sup.3 independently can be an alkyl group having 1 to 14 carbon atoms, a cycloalkyl group having 3 to 14 carbon atoms, an aryl group having 5 to 12 ring atoms, an arenyl group having 6 to 26 carbon and 0 to 3 S, N, and nonperoxidic O heteroatoms, or R.sup.2 and R.sup.3 taken together with the carbon to which they are joined can form a carbocyclic ring containing 4 to 12 ring atoms, andn is an integer 0 or 1,the azlactone functional supports having 0.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: August 9, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Steven M. Heilmann, Jerald K. Rasmussen, Larry R. Krepski, Dean S. Milbrath, Patrick L. Coleman
  • Patent number: 5300537
    Abstract: For bonding dental fillings to dentine, carboxamide group-containing (meth)acrylic acid ester of the formula ##STR1## in which R.sup.1 denotes hydrogen or methyl,R.sup.2 denotes alkyl (C.sub.1 -C.sub.4) or alkenyl (C.sub.2 -C.sub.4), optionally substituted by hydroxyl, carboxyl, halogen or amino of the formula ##STR2## in which R.sup.4 and R.sup.5 are identical or different and denote hydrogen or lower alkyl,R.sup.3 denotes hydrogen or has one of the abovementioned meanings of R.sup.2 andX is a divalent aliphatic (C.sub.1 -C.sub.6) or cycloaliphatic radical (C.sub.3 -C.sub.6), which can optionally contain one or more oxygen, sulphur and/or --NR.sup.4 -bridges,whereR.sup.4 has the abovementioned meaning.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: April 5, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Muller, Wolfgang Podszun, Bernd Alker
  • Patent number: 5300606
    Abstract: A liquid absorption agent for water or organic solvents comprising, as a main component, a crosslinked N-vinylcarboxylic acid amide resin comprising the backbone chain of a homopolymer or copolymer comprising repeating units of the formula shown below crosslinked with a crosslinking agent: ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 independently represent a hydrogen atom or methyl;X represents a group --COOY, wherein Y represents a hydrogen atom, an alkali metal, C.sub.1 -C.sub.6 alkyl, or lower alkyl substituted with hydroxyl, dialkylamino or quaternary ammonium group; a group --CONHZ, wherein Z represents a hydrogen atom or lower alkyl substituted with a dialkylamino group, quaternary ammonium group, sulfonic acid or an alkali metal salt thereof; cyano, 2-ketopyrrolidinyl, lower alkoxy, lower acyl, lower acyloxy or lower alkyl substituted with sulfonic acid or an alkali metal salt thereof, with a proviso that when R.sup.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: April 5, 1994
    Assignee: Showa Denko K.K.
    Inventors: Toshiyuki Aizawa, Hitoshi Nakamura, Yoshikazu Hosoda
  • Patent number: 5294646
    Abstract: The invention relates to new N-alkyl-N-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, their preparation and formulations of these compounds for use as adhesives for the treatment of dental hard substance.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: March 15, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Muller, Wolfgang Podszun, Werner Finger, Jens Winkel
  • Patent number: 5292840
    Abstract: Azlactone-functional polymer supports are useful reactive supports for the attachment of functional materials to provide novel adduct beads. The adduct beads are useful as complexing agents, catalysts, polymeric reagents, chromatographic supports, and as enzyme- or other biologically active supports. Novel carboxylate-functional polymer beads, are intermediates in the preparation of the azlactone-functional beads.Azlactone-functional supports have units of the formula: ##STR1## wherein R.sup.1 is H or CH.sub.3,R.sup.2 and R.sup.3 independently can be an alkyl group having 1 to 14 carbon atoms, a cycloalkyl group having 3 to 14 carbon atoms, an aryl group having 5 to 12 ring atoms, an arenyl group having 6 to 26 carbon and 0 to 3 S, N, and nonperoxidic O heteroatoms, or R.sup.2 and R.sup.3 taken together with the carbon to which they are joined can form a carbocyclic ring containing 4 to 12 ring atoms, andn is an integer 0 or 1,the azlactone functional supports having 0.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: March 8, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Steven M. Heilmann, Jerald K. Rasmussen, Larry R. Krepski, Dean S. Milbrath, Patrick L. Coleman, Margaret M. Walker
  • Patent number: 5284879
    Abstract: A water or alcohol-water soluble divinyl monomer having anion exchange group(s) and a free exchangable anion is disclosed. These bifunctional divinyl monomers are capable of forming ion exchange materials (membranes and ion exchange resin beads) upon polymerization with added vinyl catalysts which convert them into insoluble and infusible polymers. They are also capable of being co-polymerized with other ion exchange (ion containing) monomers to give unique anion exchange resins or membranes.
    Type: Grant
    Filed: March 26, 1992
    Date of Patent: February 8, 1994
    Assignee: Ionics, Incorporated
    Inventors: Russell B. Hodgdon, Russell J. MacDonald, Samuel S. Alexander
  • Patent number: 5281750
    Abstract: The present invention relates to chiral supports and to their use in the asymmetric synthesis, deracemization and optical inversion of organic chiral compounds. In particular, the supports are used in combination with thermal equilibration of a species having a reactive achiral portion. Preferably, these supports are obtained by the copolymerization of at least one chiral unit and at least one functionalizing unit or by the polymerization of at least one chiral unit which is a source of said functionalizing unit. Optionally, a crosslinking agent is utilized. By utilizing these supports and thermal equilibration, excess enantiomers can be produced.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: January 25, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Robert Jacquier, Monique Calmes, Jacques Daunis
  • Patent number: 5280095
    Abstract: A fine particulate crosslinked type N-vinylcarboxylic acid amide resin having an average particle size of 10 .mu.m or less comprising backbone chains of a homopolymer or copolymer comprising repeating units (A) or (A) and (B) of the formulae: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom or methyl group; X represents a group --COOY, wherein Y represents a hydrogen atom, an alkali metal, a C.sub.1 -C.sub.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: January 18, 1994
    Assignee: Showa Denko K.K.
    Inventors: Toshiyuki Aizawa, Hitoshi Nakamura, Tetsuhiko Yamaguchi
  • Patent number: 5280093
    Abstract: The present invention relates to chiral polymers and to their uses for operations of asymmetric synthesis, deracemization and optical inversion.These polymers are characterized in that they comprise:a chiral unita functionalizing unitan optional crosslinking unitApplication to chiral organic synthesis.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: January 18, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Robert Jacquier, Monique Calmes, Jacques Daunis
  • Patent number: 5274167
    Abstract: An optically active N-(meth)acryloyl amino acid amide of the formula ##STR1## in which R is hydrogen or methyl,R.sub.1 represents an optionally substituted alkyl, cycloalkyl, aralkyl, aryl or heteroaryl radical,R.sub.3 represents hydrogen or denotes together with R.sub.1 a tri- or tetramethylene group;X denotes oxygen or a NR.sub.4 -group wherein R.sub.4 represents hydrogen or alkyl or denotes together with R.sub.2 and the nitrogen atom a 5- to 7-membered ring which ring is optionally substituted by the group COO-alkyl (1-6 carbon atoms) or by one or two alkyl radicals (1-4 carbon atoms) andR.sub.2 denotes a strongly space-filling hydrocarbon radical.The amide is polymerized and optionally bound to a support such as silica, and can then be used for the chromatographic separation of racemic mixtures of pharmacologically active compounds.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: December 28, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Lange, Bruno Bomer, Rolf Grosser, Dieter Arlt
  • Patent number: 5244763
    Abstract: Reducing agents for oxidized developing agents and light sensitive elements containing the reducing agents wherein the reducing agents comprise a polymer having gallic acid or gallic acid derivative moieties.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: September 14, 1993
    Assignee: Eastman Kodak Company
    Inventors: Ralph B. Nielsen, Lan B. Thai, Hwei-ling Yau
  • Patent number: 5241081
    Abstract: The invention relates to new N-alkyl-N-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, their preparation and formulations of these compounds for use as adhesives for the treatment of dental hard substance.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: August 31, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Muller, Wolfgang Podszun, Werner Finger, Jens Winkel
  • Patent number: 5235015
    Abstract: Novel photosensitive compositions based on azlactone derived polymers are described. The polymers have a hydrocarbyl backbone and pendant peptide groups with free-radically polymerizable functionality attached thereto, said polymer further comprising at least one oxyacid group or salt thereof, and optionally quaternary ammonium salt groups. A high speed durable printing plate having a mild pH aqueous developability is disclosed which incorporates these polymers in combination with a photoinitiator. The polymers are also useful as proofing films in graphic arts applications.
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: August 10, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: M. Zaki Ali, Mahfuza B. Ali, Dean M. Moren
  • Patent number: 5214096
    Abstract: Water soluble polymerizable acrylic prepolymers can be formed from ethylenically unsaturated monomers that include monomers that provide a pendant group that is a blocked, saturated, ethylenic group, followed by unblocking the pendant saturated ethylenic group to leave a pendant ethylenically unsaturated group. These prepolymers can be copolymerized through these unsaturated groups, for instance after impregnation into a permeable substrate as in chemical grouting or shut off processes, to form cross linked solid polymers. The polymerizable monomers that are ethylenically unsaturated but which also include the blocked ethylenic group are also novel.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: May 25, 1993
    Assignee: Allied Colloids Limited
    Inventors: John G. Langley, Kishor K. Mistry, Kenneth C. Symes
  • Patent number: 5198517
    Abstract: Reducing agents for oxidized developing agents and light sensitive elements containing the reducing agents wherein the reducing agents comprise a polymer having gallic acid or gallic acid derivative moieties.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: March 30, 1993
    Assignee: Eastman Kodak Company
    Inventors: Ralph B. Neilsen, Lan B. Thai, Hwei-ling Yau
  • Patent number: 5185418
    Abstract: A hydrolyzable silyl group-containing azo compound is represented by the following general formula (I): ##STR1## wherein A represents a group originating from an azo compound having one or more active hydrogen groups;R.sup.1 represents a monovalent organic group;R.sup.2 represents a divalent organic group;X represents a hydrolyzable group;Y represents --O--, --S--, ##STR2## m is an integer of 1 to 3; and n is an integer of 1 or 2;and process for producing the same is disclosed. The hydrolyzable silyl group-containing azo compound is used to prepare a hydrolyzable silyl group-containing vinyl polymer produced by polymerizing vinyl monomer as a radical polymerization initiator.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: February 9, 1993
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hisao Furukawa, Katsuhiko Isayama, Yasushi Kato
  • Patent number: 5162474
    Abstract: The preparation and use of water-soluble or water-swellable copolymers by polymerization in water-in-oil emulsions of an olephinically unsaturated acid, a salt thereof, a multifunctional monomer, acrylonitrile and optionally a monomer with hydrophilic functional groups.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: November 10, 1992
    Assignee: Sigma Prodotti Chimici S.p.A.
    Inventor: Angelo Bresciani
  • Patent number: 5153273
    Abstract: A (meth)acrylic or styryl macromonomer having a amphiphilic polyethyleneimine derivative chain represented by the general formula: ##STR1## and a production process for the monomer, as well as a graft polymer having a amphiphilic polyethyleneimine derivative as the graft chain represented by the general formula: ##STR2## and a production process for the graft copolymer.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: October 6, 1992
    Inventor: Shiro Kobayashi
  • Patent number: 5120809
    Abstract: Amphiphilic monomers with mixed-chain structures of the formula ##STR1## in which Y denotes --O-- or --NH--X denotes a group of the formula --(CH.sub.2).sub.n -- or --(CH.sub.2 --O--CH.sub.2).sub.n --l denotes an integer from 0 to 10,n denotes an integer from 1 to 10,R.sup.1 denotes hydrogen, methyl, chlorine, cyano, fluorine or bromine,R.sup.2 denotes C.sub.1 -C.sub.24 -alkyl or C.sub.1 -C.sub.24 -fluoroalkyl andR.sup.3 denotes C.sub.8 -C.sub.24 -alkyl or C.sub.8 -C.sub.24 -fluoralkyl, with the proviso that the groups R.sup.2 and R.sup.3 contain a different number of carbon atoms. The monomers are polymerized on their own or together with other comonomers. The polymers obtained are suitable for the preparation of ultra-thin layers on a suitable layer support.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: June 9, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Donald Lupo, Werner Prass, Ude Scheunemann
  • Patent number: 5116925
    Abstract: Amphiphilic monomers having mixed-chain structures of the general formulae (I) or (II) ##STR1## where Y is --O-- or --NH--,X is a group of the formula --(CH.sub.2).sub.n -- or --(CH.sub.2 --O--CH.sub.2).sub.n --,l is an integer from 0 to 10,m is an integer from 10 to 26,n is an integer from 1 to 10,R.sup.1 is hydrogen, methyl, chlorine, cyano, fluorine or bromine, andR.sup.2 is O-alkyl or NH-alkyl,are polymerized alone or together with other comonomers. The polymers obtained are suitable for preparing ultra-thin films on a suitable base material.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: May 26, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Donald Lupo, Werner Prass, Ude Scheunemann
  • Patent number: 5086133
    Abstract: There is provided a process for producing a highly water absorptive polymer, which comprises making up a mixture (A) comprising an aqueous solution of (a) a partially neutralized product of acrylic acid with 20% or more of carboxylic groups being neutralized to an alkali metal salt or ammonium salt, (b) a crosslinking agent having two or more copolymerizable vinyl groups in one molecule, (c) a basic vinyl monomer in a quantity of 20 mol % or less based on said partially neutralized product of acrylic acid, (d) a nonionic surfactant with HLB of 7 or more and (e) an oxidative radical polymerization initiator, said mixture (A) being maintained at a temperature of 50.degree. C. or lower, and a mixture (B) comprising an amine or a reducing agent dissolved in water or in said mixture (A) from which at least the component (e) is removed, and mixing both the mixtures to cause polymerization.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: February 4, 1992
    Assignee: Mitsubishi Petrochemical Company Limited
    Inventors: Kiichi Itoh, Takeshi Shibano, Kenji Yoshinaga
  • Patent number: 5084536
    Abstract: A 3-component lacquer composed of A) compounds containing at least two R.sup.1 R.sup.2 C.dbd.CR.sup.3 --X groups (I) wherein R.sup.1 denotes hydrogen or a hydrocarbon radical having 1 to 10 carbon atoms, R.sup.2 and R.sup.3 are individually hydrogen, a hydrocarbon radical having 1 to 10 carbon atoms, an ester group containing the radical R.sup.4 of a monohydric alcohol having up to 12 carbon atoms, --CN, --NO.sub.2 or a --CO--NHR.sup.1 or --CO--R.sup.1 group, X is --CO-- which is attached to a further R.sup.1 R.sup.2 C.dbd.CR.sup.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: January 28, 1992
    Assignee: Hoechst AG
    Inventors: Gerhard Brindopke, Gerd Walz, Karl Waldmann, Manfred Schon, Hans-Jerg Kleiner
  • Patent number: 5077058
    Abstract: A one-step process for preparing cross-linked poly-.beta.-alanine as microspheres having narrow size distribution comprises polymerizing acrylamide with a polyfunctional compound copolymerizable with acrylamide (with the polyfunctional compound also acting as the cross-linking agent) in an organic solvent or a mixtured such solvents in the presence of an ionic polymerization initiator and a suspension agent. The resulting microspheres may be impregnated with a pharmaceutically or cosmetically active substance.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: December 31, 1991
    Assignee: L'Oreal
    Inventors: Claudine Lapoiriere, Claude Mahieu, Christos Papantoniou
  • Patent number: 5041503
    Abstract: Compositions comprising microparticles of a cross-linkable, glyoxalated (meth)acrylamide containing, polymeric material are disclosed. They are prepared using inverse mircoemulsion polymerization techniques and are useful as wet- and dry-strength agents in paper production.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: August 20, 1991
    Assignee: American Cyanamid Company
    Inventors: David L. Dauplaise, Joseph J. Kozakiewicz, Joseph M. Schmitt
  • Patent number: 5037858
    Abstract: This invention is directed to producing highly concentrated solutions of methylenebisacrylamide and thereafter blending with ionogeneous acrylic monomers to produce low porosity, highly crosslinked, water insoluble polymers for use as anion selective resins and membranes.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: August 6, 1991
    Assignee: Ionics, Incorporated
    Inventor: Russell J. MacDonald
  • Patent number: 5037863
    Abstract: Functionalized polymer microparticles having particle diameters of from about 200 to about 4000.ANG. are prepared and are useful in facilitating a variety of flocculation and thickening of dispersions of suspended solids applications.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: August 6, 1991
    Inventors: Joseph J. Kozakiewicz, David L. Dauplaise, Joseph M. Schmitt, Sun-Yi Huang
  • Patent number: 5037881
    Abstract: Mannich (alk)acrylamide microparticles are produced at high solids contents without a significant increase in bulk viscosity by inverse microemulsion polymerization and provide superior dewatering characteristics.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: August 6, 1991
    Assignee: American Cyanamid Company
    Inventors: Joseph J. Kozakiewicz, Sun-Yi Huang
  • Patent number: 5013349
    Abstract: The present invention provides a soil conditioner composed of a powdery or granular composition in which a filler is integrally included in hydrogel and a method of producing the same wherein an aqueous solution of a hydrophilic cross-linkable polymer is mixed with a filler and then the mixture is subjected to cross linking treatment by which the polymer is made to have cross-linked structure and formed into gel. Since the filler is integrally included in hydrogel, the soil conditioner, when mixed with soil, does not separate into the respective components, and there is no problem of the hydrogel emerging up to the surface of soil with the passage of time.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: May 7, 1991
    Assignee: Japan Exlan Company Limited
    Inventor: Koji Tanaka
  • Patent number: 4996243
    Abstract: A composition of matter comprising an acrylamido-acyl or methacrylamido-acyl oligomer derived from at least one nucleophilic oligomer having at least one amino-, hydroxyl-, or thiol-substituted polyoxyalkylene, polyalkyleneimine, polyester, polyolefin, polyacrylate, or polysiloxane oligomer, said nucleophilic oliogmer having a molecular weight in the range of 200 to 20,000 is disclosed. Also disclosed are free radially polymerizable monomer-containing compositions containing said oligomers as well as acrylamido- and methacrylamido-acylated polymers which are the thermal or photocured products of said oligomers. In addition, a process is disclosed for providing said acrylamido- and methacrylamido-acylated oligomers which are useful, for example, in coatings, films, printing inks, adhesives, and saturants.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: February 26, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jerald K. Rasmussen, Steven M. Heilmann, Frederick J. Palensky
  • Patent number: 4973638
    Abstract: A polyamide resin for use in peptide and protein synthesis, and a method of preparing and using same. The polyamide resin is prepared by mixing a dimethylacrylamide monomer with an N-acrylyl-diaminoalkane functional monomer in an aqueous solution together with a cross-linker and emulsifying the aqueous solution in an organic solvent. An initiator and a promoter are added to polymerize the N-acrylyl-diaminoalkane functional monomer, dimethylacrylamide monomer, and cross-linker in the form of beads. The pH of the mixture is controlled during the polymeriztion. The beads are used as a solid phase for peptide and protein synthesis according to methods known in the art. The conjugate of the polyamide resin and the synthesized peptide or protein is used directly for immunoassays or immuniaztion without the need for separation of the peptide or protein from the resin and subsequent purification.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: November 27, 1990
    Assignees: Southwest Foundation for Biomedical Researche, Baylor College of Medicine
    Inventors: James T. Sparrow, Patrick Kanda, Ronald C. Kennedy
  • Patent number: 4956399
    Abstract: Mannich (alk)acrylamide microparticles are produced at high solids contents without a significant increase in bulk viscosity by inverse microemulsion polymerization and provide superior dewatering characteristics.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: September 11, 1990
    Assignee: American Cyanamid Company
    Inventors: Joseph J. Kozakiewicz, Sun-Yi Huang
  • Patent number: 4956400
    Abstract: Functionalized polymer microparticles having particle diameters of from about 200 to about 4000 .ANG. are prepared and are useful in facilitating a variety of flocculation and thickening of dispersions of suspended solids applications.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: September 11, 1990
    Assignee: American Cyanamid Company
    Inventors: Joseph J. Kozakiewicz, David L. Dauplaise
  • Patent number: 4954538
    Abstract: Compositions comprising microparticles of a cross-linkable, glyoxalated (meth) acrylamide containing, polymeric material are disclosed. They are prepared using inverse microemulsion polymerization techniques and are useful as wet- and dry-strength agents in paper production.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: September 4, 1990
    Assignee: American Cyanamid Company
    Inventors: David L. Dauplaise, Joseph J. Kozakiewicz, Joseph M. Schmitt
  • Patent number: 4939150
    Abstract: A method for preparing a dense nutrient medium for culturing microorganisms comprises copolymerization of acrylamide, N,N'-methylenebisacrylamide and a branched polyacrylamide with the mean molecular mass of 7.2.times.10.sup.4 at a mass ratio therebetween of 7.0-15:0.11-0.21:0.028-0.11 respectively and of an initiator in a physiological solution till the formation of a gel which is then washed and impregnated with a nutrient substrate.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: July 3, 1990
    Inventors: Vladimir V. Gashinsky, Vladimir P. Shirobokov, Nikolai N. Marchenko, Valery G. Voitsekhovsky, Tatyana I. Krainjukova, Vladimir V. Onischenko
  • Patent number: 4910268
    Abstract: An acryl type macromonomer having a polyethyleneimine derivative chain represented by the general formula: ##STR1## where R.sub.1 represents H or CH.sub.3, R.sub.2 represents H or (substituted) alkyl or aryl group, R.sub.3 represents H or (substituted) alkyl group, X represents O or NR.sub.4, R.sub.4 represents H or alkyl or aryl group and n represents an integer from 1 to 1000, or a graft polymer having the polyethyleneimine derivative chain as a graft chain. The macromonomer can be obtained by reacting the compound of the general formula: ##STR2## where R.sub.2 represents H or (substituted) alkyl or aryl group, R.sub.3 represents H or (substituted) alkyl group, Y represents OH or NHR.sub.4, R.sub.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: March 20, 1990
    Inventor: Shiro Kobayashi
  • Patent number: 4871822
    Abstract: A reaction product of (A) compounds containing at least two R.sup.1 R.sup.2; C.dbd.CR.sup.3 --X groups (I) with (B) compounds which contain(a) at least two active H atoms or(b) at least two groups containing active H atoms of the type --AH-- (II) or(c) at least one active H atom and at least one group of the type (III),or which form the corresponding amount of this group (II), in which, the formula (I),X denotes --CO-- which is attached to a further R.sup.1 R.sup.2 C.dbd.CR.sup.3 group either directly or via the radical of a polyhydric alcohol or of an amine,R.sup.1 denotes hydrogen or a hydrocarbon radical having 1 to 10, preferably 1 to 4, carbon atoms, such as alkyl, phenyl, benzyl or naphthyl,R.sup.2 denotes hydrogen, a hydrocarbon radical having 1 to 10, preferably 1 to 4, carbon atoms, such as alkyl, phenyl, benzyl or naphthyl, an ester group containing the radical R.sup.4 of a monohydric alcohol having up to 12 carbon atoms, --CN, --NO.sub.2 or a CO--NHR.sup.1 or CO--R.sup.1 group, andR.sup.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: October 3, 1989
    Assignee: Hoechst AG
    Inventors: Gerhard Brindopke, Gerd Walz, Karl Waldmann, Manfred Schon, Hans-Jerg Kleiner
  • Patent number: 4857610
    Abstract: The present invention relates to a process and an apparatus for the continuous production of polymers and copolymers of water-soluble monomers particularly arcylic acid and/or methacrylic acid, optionally with additional comonomers, by the polymerization of an aqueous monomer solution that is introduced into the trough that is formed by an endless conveyor belt. The trough-like shape of the conveyor belt changes continuously into an extended flat profile during the polymerization process; starting from the side edges and working towards the center of the trough formed by the conveyor belt, the resulting polymer gel strand is released continuously during the transition of the curved trough-like shape of the conveyor belt into the extended, flat form.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: August 15, 1989
    Assignee: Chemische Fabrik Stockhausen GmbH
    Inventors: Miroslav Chmelir, Josef Pauen
  • Patent number: 4822676
    Abstract: Adhesive compositions having a Tg of -45.degree. to -25.degree. C. suitable for application to plasticized polyvinyl chloride comprising 25-48% by weight of a vinyl ester of a alkenoic acid; 10-25% by weight ethylene; 40-70% by weight of an acrylic acid ester; 1 to 10% by weight of tertiary octyl acrylamide; and 1 to 10% by weight of a mono-carboxylic acid.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: April 18, 1989
    Assignee: National Starch and Chemical Corporation
    Inventor: Paul R. Mudge
  • Patent number: 4820742
    Abstract: A method and apparatus for continuously manufacturing water absorbing resin. A mixed monomer solution is stored in a storage vessel and a polymerization initiator stored in an initiator storage vessel. The monomer solution is fed by gravity or otherwise through a conduit to a lower position (below the liquid surface) of a reaction chamber of a reaction vessel at a rate of, for example, 4 gallons per minute. Simultaneously, the polymerization initiator is fed at a rate of, for example, 0.2 gallons per minute by gravity or otherwise through a conduit to an opposite side of the reaction chamber, again at a lower portion (below a continuously maintained liquid level) to begin polymerization. The reaction product forms from an upper surface of the reactant mixture (mixed monomer solution plus initiator) and travels upwardly through a truncated frustoconical cone shaped upper portion of the reaction chamber as a solid resin.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: April 11, 1989
    Assignee: American Colloid Company
    Inventors: William Alexander, Maynard Teppo
  • Patent number: 4794139
    Abstract: This invention relates to a thixotropic thickening agent and to a process for preparing the same. Such thixotropic thickening agents are particularly useful for thickening water reducible coatings. The thixotropic thickening agents of this invention are copolymers which are comprised of repeat units which are derived from methacrylic acid monomer, ethylacrylate monomer, and a water soluble crosslinking agent. The water soluble crosslinking agents which can be used include ethylene glycol dimethacrylate and alkylene bisacrylamides, such as N,N'-methylene bisacrylamide. A neutralized two weight percent aqueous solution of the thixotropic thickening agents of this invention will have a Brookfield RVT viscosity as measured at 50 rpm using a number 3 spindle within the range of 50 to 2000 centipoise (cps).
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: December 27, 1988
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jennifer T. Braden, Gary L. Burroway, Herbert L. Bullard, Donald A. Tedeschi
  • Patent number: 4769427
    Abstract: Finely divided, gel-like crosslinked polymers are prepared by a continuous method in which a monomer mixture which contains, per 100 parts by weight of acrylic acid or methacrylic acid, from 50 to 100 mol % of which in each case are neutralized, acrylamide, methacrylamide or N-vinylpyrrolidone, from 0 to 30 parts by weight of other water-soluble monoethylenically unsaturated monomers and from 0 to 20 parts by weight of water-insoluble monoethylenically unsaturated monomers is copolymerized with from 0.01 to 5 parts by weight of a crosslinking agent, in 20-65% strength by weight aqueous solution in the presence of an initiator at from 45.degree. to 95.degree. C.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: September 6, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernhard H. Nowakowsky, Juergen Beck, Heinrich Hartmann, Christos Vamvakaris
  • Patent number: 4749592
    Abstract: A grouting composition for sealing structures to inhibit water leakage therethrough and for stabilizing soil is provided. The composition is provided as a two-part system. Part A is an aqueous solution of a hydrophililc, water soluble prepolymer having a polyether backbone and terminal active olefinic groups, the olefinic groups being connected to the polyether backbone by linking groups selected from --NH--, --CONH--, --OCONH--, and --NHCONH--, and tertiary amine catalyst. Part B is an aqueous solution of a initiator. Parts A and B are mixed and react to form a gel.
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: June 7, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alton J. Gasper, Charles D. Wright
  • Patent number: 4732930
    Abstract: An ionic gel formed by polymerization of isopropylacrylamide in the presence of an ion-containing monomer, a crosslinking agent and a suitable liquid medium is provided. The gel is capable of drastic volume change in response to solvent composition, temperature, pH, or ion composition.
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: March 22, 1988
    Assignee: Massachusetts Institute of Technology
    Inventors: Toyoichi Tanaka, Yoshitsugu Hirokawa
  • Patent number: 4696981
    Abstract: Homopolyamino acids and copolyamino acids are prepared by polycondensation of one kind or a mixture of two or more kinds of monoammonium, diammonium, monoamide, diamide or monoamideammonium salts of malic acid and/or maleic acid and/or fumaric acid, one kind or two or more kinds of amino acid being added to said raw materials, respectively, with application of microwaves, the resulting polyamino acids (imide type) being converted to peptide type, homopolyamino acids and copolyamino acids, respectively upon partial hydrolysis. The operation involved in the reaction is simple and the method permits the use of low cost reaction materials. As a result, imide type and also peptide type, homopolyamino and copolyamino acids are produced with uniform quality at a high rate of yield within an extremely short period of time. Accordingly, the method is incomparably superior to those which have been announced in the past.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: September 29, 1987
    Assignee: Diamond Shamrock Chemicals Company
    Inventors: Kaoru Harada, Akira Shimoyama, Hiroji Mizumoto
  • Patent number: 4658000
    Abstract: The invention relates to a new polyacrylamide adhesive suitable for the fixing of fine-particle sorbent layers based on organic and/or inorganic compounds, used in overpressured one- and multilayer chromatographic procedures.The said adhesive is prepared by polymerizing the aqueous solutions of acrylamide and N,N'-methylene-bis-acrylamide in the presence of a catalyst pair at from 21.degree. to 30.degree. C., pulpifying the precipitate thus obtained and repeating the precipitation and the pulpification more times.
    Type: Grant
    Filed: August 16, 1984
    Date of Patent: April 14, 1987
    Assignees: Reanal Finomvegyszergyar, Labor" Muszeripari Muvek
    Inventors: Erno Tyihak, Emil Mincsovics, Sandor Zoltan, Gabor Kemeny, Aniko Mathuny, Tibor Szekely, Sandor Nemeth, Zsuzsanna Antal, Zsuzsanna Fater
  • Patent number: 4647636
    Abstract: A process for preparing a highly water-absorbent resin by a reversed-phase suspension polymerization method using an aqueous solution of a monomer containing an alkali metal salt of acrylic or methacrylic acid, water-soluble polymerization initiator, protective colloid, hydrophobic organic solvent and if required, dispersing agent, the process being characterized in that the protective colloid is a copolymer comprising:(A) about 50 to about 97 mole % of styrene and/or alkyl-substituted derivative thereof,(B) 0 to about 50 mole % of dialkylaminoalkyl acrylate or methacrylate and/or dialkylaminoalkyl acrylamide or methacrylamide,(C) about 3 to about 15 mole % of glycidyl acrylate and/or glycidyl methacrylate and(D) 0 to about 30 mole % of an unsaturated monomer which can be copolymerized with the component A, B or C.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: March 3, 1987
    Assignee: Arakawa Kagaku Kogyo Kabushiki Kaisha
    Inventors: Muneharu Makita, Jun-ichi Maeno
  • Patent number: 4559074
    Abstract: Substantially non-ionic polyacrylamide cross linked with a low amount of cross linking agent is used as an additive for a plant growth medium.
    Type: Grant
    Filed: August 5, 1983
    Date of Patent: December 17, 1985
    Assignee: Allied Colloids Limited
    Inventor: John B. Clarke
  • Patent number: 4546159
    Abstract: Novel polymers comprising recurring units capable of undergoing .beta.-elimination in an alkaline environment are disclosed for use in diffusion control layers in diffusion transfer film units.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: October 8, 1985
    Assignee: Polaroid Corporation
    Inventor: Lloyd D. Taylor
  • Patent number: 4525527
    Abstract: Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutralized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B); and (C) a water miscible or a water soluble polyvinyl monomer in an amount of 0.001 to 0.3 weight percent based on the total weight of (A) and (B). In accordance with one embodiment of the invention, the concentration of monomers (A) plus (B) should be at least 70 percent by weight of the polymerization mixture of (A) plus (B) plus (C) to achieve a substantially dry polymer (less than 15 weight percent water) when polymerization is completed by utilizing the exothermic heat of polymerization and cross-linking to drive off water without the need for additional heating to obtain a dry solid.
    Type: Grant
    Filed: January 21, 1983
    Date of Patent: June 25, 1985
    Assignee: American Colloid Company
    Inventors: Hisao Takeda, Yasunori Taniguchi