Plural Amide Group Containing Patents (Class 526/306)
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Patent number: 5338815Abstract: 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: GrantFiled: November 30, 1993Date of Patent: August 16, 1994Assignee: Showa Denko K.K.Inventors: Toshiyuki Aizawa, Hitoshi Nakamura, Tetsuhiko Yamaguchi
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Patent number: 5336742Abstract: 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: GrantFiled: June 1, 1992Date of Patent: August 9, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Jerald K. Rasmussen, Larry R. Krepski, Dean S. Milbrath, Patrick L. Coleman
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Patent number: 5300537Abstract: 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: GrantFiled: October 19, 1992Date of Patent: April 5, 1994Assignee: Bayer AktiengesellschaftInventors: Michael Muller, Wolfgang Podszun, Bernd Alker
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Patent number: 5300606Abstract: 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: GrantFiled: March 11, 1993Date of Patent: April 5, 1994Assignee: Showa Denko K.K.Inventors: Toshiyuki Aizawa, Hitoshi Nakamura, Yoshikazu Hosoda
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Patent number: 5294646Abstract: 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: GrantFiled: June 25, 1992Date of Patent: March 15, 1994Assignee: Bayer AktiengesellschaftInventors: Michael Muller, Wolfgang Podszun, Werner Finger, Jens Winkel
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Patent number: 5292840Abstract: 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: GrantFiled: April 10, 1989Date of Patent: March 8, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Jerald K. Rasmussen, Larry R. Krepski, Dean S. Milbrath, Patrick L. Coleman, Margaret M. Walker
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Patent number: 5284879Abstract: 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: GrantFiled: March 26, 1992Date of Patent: February 8, 1994Assignee: Ionics, IncorporatedInventors: Russell B. Hodgdon, Russell J. MacDonald, Samuel S. Alexander
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Patent number: 5281750Abstract: 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: GrantFiled: November 16, 1992Date of Patent: January 25, 1994Assignee: Rhone-Poulenc ChimieInventors: Robert Jacquier, Monique Calmes, Jacques Daunis
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Patent number: 5280095Abstract: 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: GrantFiled: June 28, 1991Date of Patent: January 18, 1994Assignee: Showa Denko K.K.Inventors: Toshiyuki Aizawa, Hitoshi Nakamura, Tetsuhiko Yamaguchi
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Patent number: 5280093Abstract: 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: GrantFiled: April 14, 1993Date of Patent: January 18, 1994Assignee: Rhone-Poulenc ChimieInventors: Robert Jacquier, Monique Calmes, Jacques Daunis
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Patent number: 5274167Abstract: 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: GrantFiled: February 13, 1992Date of Patent: December 28, 1993Assignee: Bayer AktiengesellschaftInventors: Walter Lange, Bruno Bomer, Rolf Grosser, Dieter Arlt
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Patent number: 5244763Abstract: 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: GrantFiled: January 11, 1993Date of Patent: September 14, 1993Assignee: Eastman Kodak CompanyInventors: Ralph B. Nielsen, Lan B. Thai, Hwei-ling Yau
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Patent number: 5241081Abstract: 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: GrantFiled: August 9, 1991Date of Patent: August 31, 1993Assignee: Bayer AktiengesellschaftInventors: Michael Muller, Wolfgang Podszun, Werner Finger, Jens Winkel
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Patent number: 5235015Abstract: 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: GrantFiled: February 21, 1991Date of Patent: August 10, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: M. Zaki Ali, Mahfuza B. Ali, Dean M. Moren
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Water soluble acrylic polymerizable materials, polymers made from them, and processes of making them
Patent number: 5214096Abstract: 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: GrantFiled: December 2, 1991Date of Patent: May 25, 1993Assignee: Allied Colloids LimitedInventors: John G. Langley, Kishor K. Mistry, Kenneth C. Symes -
Patent number: 5198517Abstract: 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: GrantFiled: August 6, 1991Date of Patent: March 30, 1993Assignee: Eastman Kodak CompanyInventors: Ralph B. Neilsen, Lan B. Thai, Hwei-ling Yau
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Patent number: 5185418Abstract: 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: GrantFiled: April 3, 1992Date of Patent: February 9, 1993Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hisao Furukawa, Katsuhiko Isayama, Yasushi Kato
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Patent number: 5162474Abstract: 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: GrantFiled: January 2, 1990Date of Patent: November 10, 1992Assignee: Sigma Prodotti Chimici S.p.A.Inventor: Angelo Bresciani
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Patent number: 5153273Abstract: 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: GrantFiled: March 30, 1990Date of Patent: October 6, 1992Inventor: Shiro Kobayashi
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Patent number: 5120809Abstract: 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: GrantFiled: December 20, 1989Date of Patent: June 9, 1992Assignee: Hoechst AktiengesellschaftInventors: Donald Lupo, Werner Prass, Ude Scheunemann
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Patent number: 5116925Abstract: 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: GrantFiled: October 11, 1990Date of Patent: May 26, 1992Assignee: Hoechst AktiengesellschaftInventors: Donald Lupo, Werner Prass, Ude Scheunemann
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Patent number: 5086133Abstract: 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: GrantFiled: May 17, 1991Date of Patent: February 4, 1992Assignee: Mitsubishi Petrochemical Company LimitedInventors: Kiichi Itoh, Takeshi Shibano, Kenji Yoshinaga
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Patent number: 5084536Abstract: 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: GrantFiled: June 26, 1989Date of Patent: January 28, 1992Assignee: Hoechst AGInventors: Gerhard Brindopke, Gerd Walz, Karl Waldmann, Manfred Schon, Hans-Jerg Kleiner
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Patent number: 5077058Abstract: 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: GrantFiled: June 14, 1990Date of Patent: December 31, 1991Assignee: L'OrealInventors: Claudine Lapoiriere, Claude Mahieu, Christos Papantoniou
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Patent number: 5041503Abstract: 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: GrantFiled: June 11, 1990Date of Patent: August 20, 1991Assignee: American Cyanamid CompanyInventors: David L. Dauplaise, Joseph J. Kozakiewicz, Joseph M. Schmitt
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Patent number: 5037858Abstract: 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: GrantFiled: June 21, 1990Date of Patent: August 6, 1991Assignee: Ionics, IncorporatedInventor: Russell J. MacDonald
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Patent number: 5037863Abstract: 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: GrantFiled: June 13, 1990Date of Patent: August 6, 1991Inventors: Joseph J. Kozakiewicz, David L. Dauplaise, Joseph M. Schmitt, Sun-Yi Huang
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Patent number: 5037881Abstract: 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: GrantFiled: June 11, 1990Date of Patent: August 6, 1991Assignee: American Cyanamid CompanyInventors: Joseph J. Kozakiewicz, Sun-Yi Huang
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Patent number: 5013349Abstract: 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: GrantFiled: August 17, 1983Date of Patent: May 7, 1991Assignee: Japan Exlan Company LimitedInventor: Koji Tanaka
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Patent number: 4996243Abstract: 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: GrantFiled: January 16, 1990Date of Patent: February 26, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: Jerald K. Rasmussen, Steven M. Heilmann, Frederick J. Palensky
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Patent number: 4973638Abstract: 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: GrantFiled: June 19, 1989Date of Patent: November 27, 1990Assignees: Southwest Foundation for Biomedical Researche, Baylor College of MedicineInventors: James T. Sparrow, Patrick Kanda, Ronald C. Kennedy
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Patent number: 4956399Abstract: 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: GrantFiled: October 30, 1989Date of Patent: September 11, 1990Assignee: American Cyanamid CompanyInventors: Joseph J. Kozakiewicz, Sun-Yi Huang
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Patent number: 4956400Abstract: 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: GrantFiled: October 30, 1989Date of Patent: September 11, 1990Assignee: American Cyanamid CompanyInventors: Joseph J. Kozakiewicz, David L. Dauplaise
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Patent number: 4954538Abstract: 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: GrantFiled: December 19, 1988Date of Patent: September 4, 1990Assignee: American Cyanamid CompanyInventors: David L. Dauplaise, Joseph J. Kozakiewicz, Joseph M. Schmitt
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Patent number: 4939150Abstract: 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: GrantFiled: September 30, 1988Date of Patent: July 3, 1990Inventors: Vladimir V. Gashinsky, Vladimir P. Shirobokov, Nikolai N. Marchenko, Valery G. Voitsekhovsky, Tatyana I. Krainjukova, Vladimir V. Onischenko
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Patent number: 4910268Abstract: 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: GrantFiled: April 20, 1988Date of Patent: March 20, 1990Inventor: Shiro Kobayashi
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Patent number: 4871822Abstract: 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: GrantFiled: June 16, 1986Date of Patent: October 3, 1989Assignee: Hoechst AGInventors: Gerhard Brindopke, Gerd Walz, Karl Waldmann, Manfred Schon, Hans-Jerg Kleiner
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Patent number: 4857610Abstract: 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: GrantFiled: December 16, 1986Date of Patent: August 15, 1989Assignee: Chemische Fabrik Stockhausen GmbHInventors: Miroslav Chmelir, Josef Pauen
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Patent number: 4822676Abstract: 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: GrantFiled: March 16, 1987Date of Patent: April 18, 1989Assignee: National Starch and Chemical CorporationInventor: Paul R. Mudge
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Patent number: 4820742Abstract: 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: GrantFiled: December 29, 1986Date of Patent: April 11, 1989Assignee: American Colloid CompanyInventors: William Alexander, Maynard Teppo
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Patent number: 4794139Abstract: 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: GrantFiled: September 22, 1986Date of Patent: December 27, 1988Assignee: The Goodyear Tire & Rubber CompanyInventors: Jennifer T. Braden, Gary L. Burroway, Herbert L. Bullard, Donald A. Tedeschi
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Patent number: 4769427Abstract: 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: GrantFiled: October 22, 1986Date of Patent: September 6, 1988Assignee: BASF AktiengesellschaftInventors: Bernhard H. Nowakowsky, Juergen Beck, Heinrich Hartmann, Christos Vamvakaris
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Patent number: 4749592Abstract: 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: GrantFiled: September 11, 1986Date of Patent: June 7, 1988Assignee: Minnesota Mining and Manufacturing CompanyInventors: Alton J. Gasper, Charles D. Wright
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Patent number: 4732930Abstract: 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: GrantFiled: May 20, 1985Date of Patent: March 22, 1988Assignee: Massachusetts Institute of TechnologyInventors: Toyoichi Tanaka, Yoshitsugu Hirokawa
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Patent number: 4696981Abstract: 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: GrantFiled: March 13, 1986Date of Patent: September 29, 1987Assignee: Diamond Shamrock Chemicals CompanyInventors: Kaoru Harada, Akira Shimoyama, Hiroji Mizumoto
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Patent number: 4658000Abstract: 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: GrantFiled: August 16, 1984Date of Patent: April 14, 1987Assignees: Reanal Finomvegyszergyar, Labor" Muszeripari MuvekInventors: Erno Tyihak, Emil Mincsovics, Sandor Zoltan, Gabor Kemeny, Aniko Mathuny, Tibor Szekely, Sandor Nemeth, Zsuzsanna Antal, Zsuzsanna Fater
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Patent number: 4647636Abstract: 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: GrantFiled: September 11, 1985Date of Patent: March 3, 1987Assignee: Arakawa Kagaku Kogyo Kabushiki KaishaInventors: Muneharu Makita, Jun-ichi Maeno
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Patent number: 4559074Abstract: 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: GrantFiled: August 5, 1983Date of Patent: December 17, 1985Assignee: Allied Colloids LimitedInventor: John B. Clarke
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Patent number: 4546159Abstract: 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: GrantFiled: March 30, 1981Date of Patent: October 8, 1985Assignee: Polaroid CorporationInventor: Lloyd D. Taylor
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Patent number: 4525527Abstract: 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: GrantFiled: January 21, 1983Date of Patent: June 25, 1985Assignee: American Colloid CompanyInventors: Hisao Takeda, Yasunori Taniguchi