Contains Oxygen Atom Other Than In Amide Form Bonded To A Carbon Atom Patents (Class 526/304)
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Patent number: 5576406Abstract: It is an objective of the present invention to provide, in particular, a curable composition of an extremely high utility which yields a cured film having excellent acid resistance and the like. The curable composition of the present invention is used mainly for paints, adhesives, or sealing agents. The curable composition is based on crosslinking reaction between a specific substituted methyl ester group exemplified by an alkoxymethyl ester group and other functional groups, i.e., an epoxy group and an active hydrogen-containing group such as a hydroxyl group, a carbamate group, and an acetoacetoxy group.Type: GrantFiled: December 15, 1994Date of Patent: November 19, 1996Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Kazuo Yamamura, Masataka Ooka
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Patent number: 5574097Abstract: The invention relates to non-crosslinked non-polypeptide polymers containing biodegradable lipophilic side chains incorporating methylene diester units of the formula --[--CO--O--C(R.sup.1 R.sup.2)--O--CO--]--, where R.sup.1 and R.sup.2 each represents a hydrogen atom or a carbon-attached monovalent organic group or R.sup.1 and R.sup.2 together form a carbon-attached divalent organic group. The lipophilic moieties are biodegradatively cleavable to yield a water-soluble polymer.Type: GrantFiled: January 10, 1995Date of Patent: November 12, 1996Assignee: Nycomed Imaging ASInventors: Jo Klaveness, Keith Redford, Jan Solberg, Per Strande
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Patent number: 5565268Abstract: A water-soluble or water-dispersible pressure sensitive adhesive is provided comprised of a normally-tacky copolymer of a water-soluble base monomer and a water-soluble or water-dispersible macromer. In a preferred embodiment, the water-soluble base monomer comprises a carboxylic hydroxyalkyl ester monomer and the water-soluble macromer comprises an ethoxylated or propoxylated hydroxyalkyl (meth)acrylate.Type: GrantFiled: June 7, 1995Date of Patent: October 15, 1996Assignee: Adhesives Research, Inc.Inventor: Michael J. Zajaczkowski
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Patent number: 5560749Abstract: A bleaching composition and method is described that includes contacting a substrate with a peroxygen compound and a polymeric bleach precursor which has a monomer repeating unit of the structure: ##STR1## wherein R is hydrogen or a C.sub.1 -C.sub.20 radical selected from the group consisting of alkyl, cycloalkyl, alkenyl, cycloalkenyl and aryl radicals; andR.sup.1 is a C.sub.1 -C.sub.40 radical selected from the group consisting of alkyl, cycloalkyl, alkenyl, cycloalkenyl and aryl radicals.Type: GrantFiled: June 6, 1995Date of Patent: October 1, 1996Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Stephen A. Madison, Pamela C. Lam
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Patent number: 5556913Abstract: The present invention provides a cationic electrocoating composition which cures at the preferred curing temperature range and provides superior curing properties and cured film properties. The cationic electrocoating composition of the present invention comprises a resinous component and an aqueous medium, wherein the resinous component is composed of one or more polymers and has as a whole an active hydrogen containing group, a cationic group and a substituted group and at least one of the polymers comprises a vinyl polymer which has 5 to 1,000 substituted acylamide groups.Type: GrantFiled: January 3, 1994Date of Patent: September 17, 1996Assignee: Nippon Paint Co., Ltd.Inventors: Kenshiro Tobinaga, Hiroyuki Sakamoto, Shinsuke Shirakawa, Satoshi Urano, Yasuyuki Tsuchiya
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Patent number: 5552501Abstract: A method for the accelerated free radical copolymerization of acrylamide monomers and diacetone acrylamide monomers in an aqueous solution to form copolymers which may be combined with photosensitizers and utilized in the color picture tube or photoengraving industries as a polymeric component of the light sensitive photoresists comprises admixing an aqueous acrylamide and diacetone acrylamide monomer solution with an effective amount of a free radical initiator and an effective amount of a tetramethylamine catalyst to form a mixture and maintaining the mixture at ambient temperature until the polymerization is complete. A 0.1 to 15% weight solution of the two monomers having an acrylamide to diacetone acrylamide weight ratio of between about 0.4:1 to 100:1 is completely polymerized in less than an hour when the weight ratio of free radical initiator to monomers is between about 1:6 to 1:300 and the weight ratio of tetramethylamine catalyst to monomers is about 1:20 and 1:400.Type: GrantFiled: June 13, 1995Date of Patent: September 3, 1996Inventor: Kamala D. Patel
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Patent number: 5543267Abstract: Flat materials made from a polymer with a backbone and side groups branching off the backbone (side group polymer), which polymer has the following structural features (1) to (3):(1) the side group polymer contains at least one photoinducibly configuration-changing side group;(2) the side group polymer contains at least one permanently conformationally anisotropic side group with high anisotropy of molecular polarisability which differs from (1);(3) the side group polymer contains flexible spacer groups between the backbone and the side groups (1) and (2);wherein the flat material in the glassy state of the side group polymers is optically isotropic, transparent, non-scattering and amorphous before irradiation and, after irradiation, is transparent and durably birefringent and dichroic due to a reversible, photoinduced alignment of the side groups (1) and (2) in the glassy state, may be purposefully modified in terms of their optical properties by the action of light.Type: GrantFiled: March 21, 1994Date of Patent: August 6, 1996Assignee: Agfa-Gevaert AGInventors: Joachim Stumpe, Valery Shibaev, Sergei Kostromin, Sergei Ivanov, Thomas Fischer, Lutz L asker, Ralf Ruhmann, Uwe Claussen
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Patent number: 5539074Abstract: The invention is concerned with linear and cyclic polymers or oligomers having a photoreactive ethene group. The polymers are of the formula ##STR1## wherein M.sub.a, M.sub.b, M.sub.c are monomer units for homo- or copolymers;x, y, z are mole fractions of the copolymers, whereby in each case 0<x.ltoreq.1; 0.ltoreq.y.ltoreq.1 and 0.ltoreq.z<1;S.sub.a, S.sub.b are spacer units;Z.sub.a, Z.sub.b are molecule units which can undergo photochemical isomerization/dimerization;n is a magnitude of 4-100 000 andm is 0 or 1,The compounds are used as an orientating layer for liquid crystals.Type: GrantFiled: February 4, 1994Date of Patent: July 23, 1996Assignee: Hoffmann-La Roche Inc.Inventors: Rolf-Peter Herr, Stephen Kelly, Martin Schadt, Klaus Schmitt, Andreas Schuster
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Patent number: 5539072Abstract: Laminates of fabric and microporous polymeric substrates are taught which have enhanced oleophobic and hydrophobic properties. The enhanced properties are obtained by contacting the laminate or any of its components with an aqueous dispersion of polymer particles of an organic polymer having pendent fluorinated alkyl groups and in which the particles are very small, being on the order of 0.01-0.1 micrometer. The small size promotes uniformity of coating when the laminate or components are coated with the dispersion and then heated to flow the particles together.Type: GrantFiled: December 19, 1994Date of Patent: July 23, 1996Assignee: W. L. Gore & Associates, Inc.Inventor: Huey S. Wu
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Patent number: 5525692Abstract: A novel process for preparing an acrylic polymer containing a tertiary amino group which is not quaternized or not salt formed and having a high molecular weight, characterized by reacting an aqueous solution of an acrylic monomer containing a tertiary amino group with carbonic acid gas to generate an acrylic monomer containing a tertiary ammonium carbonate, homopolymerizing the obtained monomer or copolymerizing the obtained monomer with the other vinyl monomer copolymerizable with the obtained monomer to give a polymer containing a structural unit of a tertiary ammonium carbonate, and decarboxylating the polymer with heating and/or reducing the pressure is provided, and particularly, an article containing a water-soluble vinyl polymer which contains at least 5% by mole of the above-mentioned structural unit of a tertiary amino group and whose intrinsic viscosity [.eta.] is at least 1 dl/g is available as an excellent dewatering agent for sludge.Type: GrantFiled: December 28, 1994Date of Patent: June 11, 1996Assignee: Kohjin Co., Ltd.Inventors: Akiyoshi Nagamoto, Hiroshi Oka
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Patent number: 5523345Abstract: A latex binder composition which is the reaction product of a conjugated diene monomer and a vinyl-substituted aromatic monomer along with minor amounts of other comonomers including acrylamide or a derivative thereof, methacrylic acid, N-methylolacrylamide, and optional unsaturated carboxylic acids, has an average particle size of less than 1,500 .ANG.. The latex binder which has good stability can be used on nonwoven cellulosic based substrates to impart high wet tensile strength thereto.Type: GrantFiled: February 25, 1994Date of Patent: June 4, 1996Assignee: GenCorp Inc.Inventors: David F. Diehl, Peter C. Hayes
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Patent number: 5519071Abstract: The invention relates to a dental cement, a process for its preparation and its use. The cement contains a polymerisable mono or polyfunctional carbonyl compound which corresponds to one of the following general formulae: ##STR1## in which R.sup.1 may be an alkyl, cycloalkyl, alkoxy or aryl group or a combination thereof,R.sup.2 may be an alkyl, cycloalkyl, alkoxy or aryl group, a combination thereof or hydrogen,R.sup.3 may be an alkyl, cycloalkyl, alkoxy or aryl group, a combination thereof or hydrogen, andX is either not present or may be O, NR, NH or S, where R may be an alkyl, cycloalkyl, alkoxy or aryl group or a combination thereof, andat least one of the groups R.sup.1, R.sup.2 or R.sup.3 is also substituted by a group Y containing at least one polymerisable vinyl group, except for compounds containing naphthyl groups substituted with carboxylic acid anhydride functions.Type: GrantFiled: February 24, 1995Date of Patent: May 21, 1996Assignee: Ivoclar AGInventors: Volker Rheinberger, Ulrich Salz
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Patent number: 5512644Abstract: There is disclosed an ampholytic polymer capable of absorbing aqueous electrolyte solutions, which is obtainable by polymerization of a monomer mixture including (A) at least 10 mol % of an ampholytic vinyl monomer, with the proviso that when the monomer (A) has no self-crosslinkability, the amount of monomer (A) is in the range of 10 to 99.995 mol %. The monomer mixture may further include (B) 90 mol % or less of a non-ampholytic vinyl monomer and (C) 1 mol % or less of a crosslinkable monomer, with the proviso that the total amount of monomers (A), (B) and (C) is 100 mol % and when the monomer (A) has no self-crosslinkability, the amount of monomer (C) is in the range of 0.005 to 1 mol %.Type: GrantFiled: September 8, 1994Date of Patent: April 30, 1996Assignee: Toyo Boseki Kabushiki KaishaInventors: Kuniyoshi Ogura, Kouji Sasaki
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Patent number: 5508367Abstract: A water-soluble or water-dispersible pressure sensitive adhesive is provided comprised of a normally-tacky copolymer of a water-soluble base monomer and a water-soluble or water-dispersible macromer. In a preferred embodiment, the water-soluble base monomer comprises a carboxylic hydroxyalkyl ester monomer and the water-soluble macromer comprises an ethoxylated or propoxylated hydroxyalkyl (meth)acrylate.Type: GrantFiled: March 7, 1995Date of Patent: April 16, 1996Assignee: Adhesives Research, Inc.Inventor: Michael J. Zajaczkowski
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Patent number: 5502138Abstract: The present invention provides an article of manufacture comprising a textile substrate and a coating being a polymer comprising a non-aromatic unsaturated mono- or dicarboxylic ester monomer and an aliphatic conjugated diene monomer. An unsaturated mono- or dicarboxylic acid monomer or a monomer based on the half esters of the dicarboxylic acid monomer can also be included. In one embodiment, the present invention provides a method of preparing a textile substrate comprising applying to a surface of the textile substrate a coating, the coating being a polymer comprising a non-aromatic unsaturated mono- or dicarboxylic ester monomer and an aliphatic conjugated diene and heating the surface of the textile substrate to dry the coating.Type: GrantFiled: May 30, 1995Date of Patent: March 26, 1996Assignee: Reichhold Chemicals, Inc.Inventors: Venkataram Krishnan, Winfeld S. Rutherford
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Patent number: 5492989Abstract: A charge imbalanced polymer comprising:(a) about 10 to 90 mole % of polymeric units having the formulas ##STR1## where A is present in an amount of about 0.1-0.8 mole, and B is present in an amount of about 0.05-0.4 mole, and where A is 2-6 times B,where R=C.sub.1 -C.sub.4 alkyl,n=1-6,R.sub.1 and R.sub.2 are independently C.sub.1 -C.sub.6 alkyl,R.sub.3 is H or lower alkyl, andR.sub.4 =C.sub.12 -C.sub.24 alkyl;and(b) about 10 to 90 mole % of a polymeric diacid units having the formula: ##STR2## where R is as defined above, and (c) about 0-20 mole % of by-product salts which are the dialkylaminoalkylamine and alkylamine salts of acid units of (a) and (b).The charged imbalanced polymer described above is made by:reacting 1 mole of an anhydride compound having the formula ##STR3## where R is as defined above, with less than 1 mole of a mixture of about 0.1-0.8 mole of a compound having the formula ##STR4## where n, R.sub.1, R.sub.2 and R.sub.3 are as defined above, and about 0.05-0.Type: GrantFiled: March 16, 1992Date of Patent: February 20, 1996Assignee: ISP Investments Inc.Inventors: Ratan K. Chaudhuri, Lowell R. Anderson, Robert B. Login
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Patent number: 5491213Abstract: Polysuccinimide is prepared by reacting an unsaturated C.sub.2 dicarboxylic acid or anhydride thereof, e.g., maleic acid, fumaric acid, and maleic anhydride, with a particulate ammonium salt that is thermally decomposable to liberate ammonia. The reaction is carried out at a temperature which is above the thermal decomposition temperature of the ammonium salt and for a time period which is sufficient for the acid or anhydride to react with the ammonia liberated from the ammonium salt and for polymerization to occur. The present method avoids the prior art problems of controlling ammonia losses and water removal. The product polysuccinimide can be readily hydrolyzed to polyaspartic acid or a salt thereof, if desired.Type: GrantFiled: January 28, 1994Date of Patent: February 13, 1996Assignee: Donlar CorporationInventor: Daniel A. Batzel
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Patent number: 5487885Abstract: Novel polymeric compositions and their intermediates are provided, providing for broad range protection from ultraviolet radiation. Acryl polymers comprising at least two different ultraviolet absorbing moieties having different light absorbing ranges are employed in conjunction with another hydrophilic monomer to provide sunscreen formulations for invisibility, and enhanced protection, without deleterious effects in the dermis.Type: GrantFiled: December 9, 1993Date of Patent: January 30, 1996Assignee: Biophysica, Inc.Inventors: Milos Sovak, Ronald C. Terry, James G. Douglass, III, Farid Bakir
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Patent number: 5481026Abstract: The invention relates to new optically active amino acid derivatives of the general formula (I) ##STR1## in which n, R, R.sub.1, R.sub.2, R.sub.3, X and A have the meaning given in the description, which amino acid derivatives contain sulphoxide or sulphone groups, to two basic synthetic routes for the preparation from sulphur-containing amino acids, to the polymerization of these monomers and to the use of the polymers as optically active adsorbents for chromatographic resolution of racemates to give the enantiomers.Type: GrantFiled: July 1, 1994Date of Patent: January 2, 1996Assignee: Bayer AktiengesellschaftInventors: Michael Grosse-Bley, Bruno Bomer, Rolf Grosser, Walter Lange, Franz-Peter Hoever, Dieter Arlt
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Patent number: 5475074Abstract: A polymerizable composition containing;(A) 100 parts by weight of a vinylbenzyl compound of the formula (I), ##STR1## wherein each of R.sup.1 and R.sup.2 is independently a halogen atom, each of h and i is independently 0, 1 or 2, each of X.sup.1, X.sup.2 and X.sup.3 is independently an oxygen atom or a sulfur atom, and each of j, k and m is 0 or 1, provided that when k is 0, j is 0, that when m is 0, each of j and k is 0, that when j is 0 and when each of k and m is 1, X.sup.1 and X.sup.2 cannot be sulfur atoms at the same time, and that when each of m, k and j is 1, X.sup.1, X.sup.2 and X.sup.3 cannot be sulfur atoms at the same time,and(B) 0.1 to 20 parts by weight of 2,4-diphenyl-4-methyl-1-pentene.Type: GrantFiled: January 28, 1994Date of Patent: December 12, 1995Assignee: Tokuyama CorporationInventors: Shingo Matsuoka, Hideki Kazama, Tadashi Hara, Tomonori Matsunaga, Hiroshi Suga
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Patent number: 5470916Abstract: Matrices for electrokinetic and chromatographic separations, based on a unique class of mono- and disubstituted (on the amido nitrogen) acrylamides (e.g., acrylamido-N-ethoxy ethanol, acrylamido-N,N-diethoxy ethanol) off erthe following advantages: a) strong resistance to the alkaline hydrolysis (most zone separations occurring at basic pH values); b) a high hydrophilicity; and c) greater porosity, due to the larger M.sub.r value of the monomers. Such matrices can be prepared as `chemically crosslinked` gels or as `physical` gels, the latter consisting of strings of monofunctional monomer in the absence of crosslinker, at concentrations above the entanglement threshold. It is moreover possible to further increment the gel porosity by polymerizing it in the presence of laterally aggregating agents (e.g., polyethylene glycol of M.sub.r 6-20,000 Da), thus obtaining matrices which allow better resolution of large M.sub.Type: GrantFiled: June 3, 1994Date of Patent: November 28, 1995Inventors: Pier G. Righetti, Marcella Chiari
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Patent number: 5463007Abstract: A compound represented by the following formula: ##STR1## wherein R is a C.sub.3 -C.sub.24 olefinically unsaturated organic radical having functionality which renders the nitrogen atom electron deficient, the olefinic unsaturation functionality being polymerizable,R.sup.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl radical, orR and R.sup.1 together with the nitrogen atom can form an olefinically unsaturated 5 to 7-member ring which has functionality that renders the nitrogen atom electron deficient and the olefinic unsaturation functionality is polymerizable,R.sup.2 and R.sup.3 are hydrogen, a C.sub.1 -C.sub.4 alkyl or acyl radical, orR.sup.2 and R.sup.3 together are a C.sub.2 -C.sub.4 alkylene group,R.sup.4 is hydrogen or a C.sub.1 -C.sub.4 alkyl, acyl, ester, amide or acid group, andn is an integer from 1 to 10, provided n is not 1 when R is (meth)acryloyl, R.sup.2 and R.sup.3 are methyl and R.sup.1 and R.sup.4 are hydrogen.Under acidic conditions the above compounds in which R.sup.Type: GrantFiled: May 19, 1993Date of Patent: October 31, 1995Assignee: Air Products and Chemicals, Inc.Inventors: Robert K. Pinschmidt, Jr., Dale D. Dixon, William F. Burgoyne, Jr., Joel E. Goldstein
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Patent number: 5451651Abstract: Urea- and urethane-containing monomers for contact lens materials are disclosed.Type: GrantFiled: December 17, 1993Date of Patent: September 19, 1995Assignee: Bausch & Lomb IncorporatedInventor: Yu-Chin Lai
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Patent number: 5449729Abstract: A novel class of compounds are disclosed which may be used as novel crosslinking agents for acrylic-containing, vinyl-containing and/or styrene-containing hydrophilic monomers to prepare novel UV-curable hydrophilic copolymers suitable for use as biomedical articles, especially contact lenses.Type: GrantFiled: February 14, 1994Date of Patent: September 12, 1995Assignee: Bausch & Lomb IncorporatedInventor: Yu-Chin Lai
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Patent number: 5444136Abstract: Nonlinearly optically active monomer species comprising at least two carbon-carbon activated double bonds, i.e., the polymerization of which is facilitated by the presence of an electron attracting function, and a non-centrosymmetric system of pi (.pi.Type: GrantFiled: March 15, 1994Date of Patent: August 22, 1995Assignee: Flamel TechnologiesInventors: Yves Camberlin, Gerard Mignani, Remi Meyrueix, Gilles Tapolsky
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Patent number: 5442021Abstract: Luminescent copolymers having the following structure:[A].sub.a --[B].sub.bin whichA is a luminescent component,B represents (co)monomers anda and b represent the percentages by weight of A and B in the copolymer, a making up 0.0001 to 20% by weight and b making up 99.9999 to 80% by weight, rare earth metal complexes having the formula M.sup.3+ (L).sub.n --suitable as component A in claim 1--where M.sup.3+ is the cation of a rare earth metal, L is a polymerizable complex ligand and n is an integer of 1 to 4, as their initial product and the use of the luminescent copolymers in medical diagnosis.Type: GrantFiled: February 18, 1994Date of Patent: August 15, 1995Assignee: Bayer AktiengesellschaftInventor: Ludger Heiliger
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Patent number: 5439970Abstract: Acrylic polymers having glass transition temperatures less than 0.degree. C.Type: GrantFiled: November 4, 1993Date of Patent: August 8, 1995Assignee: Rhone-Poulenc ChimieInventor: Roland Reeb
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Patent number: 5437932Abstract: Novel photosensitive compositions based on azlactone derived polymers are described. The polymers have a hydroearbyl 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: May 13, 1994Date of Patent: August 1, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: M. Zaki Ali, Mahfuza B. Ali, Dean M. Moren
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Patent number: 5436306Abstract: Methine or azamethine dye polymers useful in nonlinear optics contain as characteristic monomer units radicals of the formulae I, II, III and IV ##STR1## where G is a divalent organic radical,Z is nitrogen or CH,R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl or substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy,R.sup.3 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl or C.sub.3 -C.sub.4 -alkenyl,R.sup.4 is hydrogen, deuterium, methyl, trideuterated methyl or chlorine,R.sup.5 is hydrogen or deuterium,Y.sup.1 and Y.sup.2 are each C.sub.2 -C.sub.10 -alkylene,E is oxygen, imino or C.sub.1 -C.sub.4 -alkylimino, andX is hydroxyl, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, phenoxy, amino or C.sub.1 -C.sub.4 -mono- or -dialkylamino, andthe ring A can be benzofused, and have an average molecular weight of from 1,000 to 100,000.Type: GrantFiled: June 29, 1994Date of Patent: July 25, 1995Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Etzbach, Ruediger Sens, Heike Kilburg
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Patent number: 5432245Abstract: The invention provides acrylamide polymers that, when mixed with water solvent, provide thermoreversible solutions that form low viscosity melts at temperatures separated by a third region of maximum viscosity.Type: GrantFiled: May 7, 1993Date of Patent: July 11, 1995Assignee: Eastman Kodak CompanyInventors: Michael R. Roberts, Glenn T. Pearce, Elizabeth V. Patton
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Patent number: 5428101Abstract: Disclosed is a solvent based coating composition comprising at least one vinyl polymer and an organic solvent, wherein said vinyl polymer(s) has at least one group consisting of an active hydrogen-containing group and a substituted acylamide group, and said vinyl polymer(s) contains the above described two groups as a whole.Type: GrantFiled: March 18, 1994Date of Patent: June 27, 1995Assignee: Nippon Paint Co., Ltd.Inventors: Satoshi Urano, Noriyuki Tsuboniwa, Kei Aoki, Hirotoshi Umemoto
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Patent number: 5424391Abstract: A method for producing polysuccinimide is provided. Thermal polymerization of fumaramic acid at a temperature of from about 160.degree. C. to about 330.degree. C. produces polysuccinimide. The reaction is optionally conducted in the presence of one or more processing aids, solvents or diluents. The polysuccinimide is particularly useful as a detergent additive.Type: GrantFiled: July 20, 1993Date of Patent: June 13, 1995Assignee: Rohm and Haas CompanyInventors: Yi H. Paik, Graham Swift, Ethan S. Simon, Michael B. Freeman
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Patent number: 5415926Abstract: In a process for the preparation of N-alkylol amide monomers wherein a polymerizable amide is reacted with an aldehyde, the improvement which comprises adjusting the pH of the resulting N-alkylol amide monomer to pH 10-11 and adding thereto an alkali or alkali earth metal borohydride at a temperature of -10.degree. to 20.degree. C. so as to convert the residual free aldehyde in the equilibrium mixture to the corresponding alcohol.Type: GrantFiled: February 25, 1993Date of Patent: May 16, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventors: John C. Leighton, Rama S. Chandran
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Patent number: 5408024Abstract: A resin composition containing from about 10 to 95% by weight of n-methylolacrylamide and from about 5 to 90% by weight of a cationic monomer and optionally a nonionic monomer and/or a difunctional monomer.Type: GrantFiled: March 14, 1994Date of Patent: April 18, 1995Assignee: Henkel CorporationInventors: Stephen A. Fischer, David I. Devore
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Patent number: 5401810Abstract: There is provided a strength resin polymer for papermaking that has pendant alpha-hydroxy acetal substituents to (N-alkyl)(C.sub.1-2 alkyl)acrylamide mer units. There also is provided a process for preparation of such resin polymer by adduction of a pre-existing polymer, or the monomer precursors thereto, with an acetal-aldehyde reactant under alkaline conditions. There is provided such strength resin polymer in the form of a fluid liquid system, for instance a fluid solution or a fluid oil-continuous water-in-oil emulsion, particularly when such a system has a high concentration of resin polymer. There is provided activated polymer versions of certain of such resin polymers and paper compositions containing such activated polymer. There is also provided papermaking processes including the step of activating such resin polymer.Type: GrantFiled: March 18, 1994Date of Patent: March 28, 1995Assignee: Nalco Chemical CompanyInventors: Roger H. Jansma, A. James Begala, Gary S. Furman
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Patent number: 5395907Abstract: A water-soluble or water-dispersible normally tacky pressure sensitive adhesive is provided comprised of a copolymer of a water-soluble base monomer and a water-soluble macromer. In a preferred embodiment, the water-soluble base monomer comprises a carboxylic hydroxyalkyl ester monomer and the water-soluble macromer comprises an ethoxylated or propoxylated hydroxyalkyl (meth)acrylate.Type: GrantFiled: July 11, 1994Date of Patent: March 7, 1995Assignee: Adhesive Research, Inc.Inventor: Michael J. Zajaczkowski
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Patent number: 5393868Abstract: A method for producing polysuccinimide is provided. Thermal polymerization of maleamic acid at a temperature of from about 160.degree. C. to about 330.degree. C. produces polysuccinimide. The reaction is optionally conducted in the presence of one or more processing aids, solvents or diluents. The polysuccinimide is particularly useful as a detergent additive.Type: GrantFiled: October 13, 1992Date of Patent: February 28, 1995Assignee: Rohm and Haas CompanyInventors: Michael B. Freeman, Yi H. Paik, Ethan S. Simon, Graham Swift
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Patent number: 5389699Abstract: UV-crosslinkable materials based on (meth)acrylate copolymers and containing from 0.01 to 10% by weight, based on the copolymer, of copolymerized monomers of the formula I ##STR1## where x is alkyl of 1 to 3 carbon atoms or is phenyl which is unsubstituted or substituted by n Y groups, Y is --H, --CF.sub.3, --O-- alkyl and/or alkyl-COO--, where alkyl in each case is of 1 to 4 carbon atoms, halogen, --CH, --COOH or a non-ortho --OH group, n is from 0 to 4 and Z is a group of the formula ##STR2## where R is H or C.sub.1 -C.sub.4 -alkyl and A is an alkylene, oxaalkylene or polyoxaalkylene radical of 2 to 12 carbon atoms are used as hotmelt adhesives, for coating sheet-like mineral substrates and as surface coatings.Type: GrantFiled: July 8, 1993Date of Patent: February 14, 1995Assignee: BASF AktiengesellschaftInventors: Gerd Rehmer, Andreas Boettcher, Michael Portugall
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Patent number: 5385996Abstract: A process for the production of polymers by free radical polymerization, characterized in that there is added to the polymerization system one or more compounds of the general formula (A). ##STR1## where R.sup.1 is hydrogen or a group capable activating the vinylic carbon towards free radical addition;Y is OR.sup.2 or CH.sub.2 X(R.sup.2).sub.nwhere R.sup.2 is an optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted saturated, unsaturated or aromatic, aromatic carbocyclic or heterocyclic ring;X is an element other than carbon selected from Groups IV, V, VI or VII of the Periodic Table or a group consisting of an element selected from Groups IV, V, or VI to which is attached one or more oxygen atoms; andn is a number from 0 to 3, such that the valency of the group X is satisfied and, when n is greater than 1, the groups represented by R.sup.2 may be identical or different.Type: GrantFiled: June 7, 1993Date of Patent: January 31, 1995Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Ezio Rizzardo, Gordon F. Meijs, San H. Thang
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Patent number: 5374662Abstract: Novel fumarate- and fumaramide-containing monomers are disclosed which are especially useful in the preparation of biocompatible devices, especially contact lenses.Type: GrantFiled: March 15, 1993Date of Patent: December 20, 1994Assignee: Bausch & Lomb IncorporatedInventors: Yu-Chin Lai, Ronald E. Bambury
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Patent number: 5371177Abstract: A process is provided for preparing polysuccinimides by forming a polymerization mixture of poly(alkylene glycol), maleamic acid and, optionally one or more other amic acids, heating the mixture to an elevated temperature, and maintaining the mixture at the elevated temperature to form polysuccinimides.Type: GrantFiled: July 10, 1992Date of Patent: December 6, 1994Assignee: Rohm and Haas CompanyInventors: Yi H. Paik, Ethan S. Simon, Graham Swift
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Patent number: 5369204Abstract: Low molecular weight crosslinking agents useful in coatings based on esters of acrylamidoglycolate ethers are disclosed. The copolymeric crosslinking agents of the invention are prepared by copolymerizing a reactive acrylamidoglycolate monomer such as MAGME.RTM. methyl acrylamidoglycolate methyl ether with comonomers such as methyl methacrylate or butyl acrylate. The process of preparing the copolymeric crosslinkers of the invention makes use of chain transfer agents to limit the molecular weight of the crosslinking agents to 10,000 or less.Type: GrantFiled: February 16, 1993Date of Patent: November 29, 1994Assignee: Cytec Technology Corp.Inventors: Kuang-Jong Wu, Howard R. Lucas, Robert G. Lees, Nicholas J. Albrecht
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Patent number: 5369198Abstract: Copolymers which are composed essentially of the structural elements ##STR1## and, if necessary, ##STR2## The copolymers can be employed as dispersing agents for inorganic or organic substances, especially as a plasticiser for hydraulic binders.Type: GrantFiled: February 1, 1994Date of Patent: November 29, 1994Assignees: Chemie Linz Gesellschaft m.b.H, Holderchem Holding AGInventors: Gerhard Albrecht, Hubert Leitner, Rudolf Lindenberger, Richard Siedl, Christian Werenka, Willi Suter
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Patent number: 5367015Abstract: Preparation of soluble polyvinyl acetals having a low degree of crosslinking, which show improved melt viscosity characteristics, by acetalization of soluble polyvinyl alcohols having a low degree of crosslinking, which have been obtained by hydrolysis or alcoholysis of soluble copolymers having a low degree of crosslinking of vinyl esters and monomers having multiple ethylenic unsaturations, for example, glyoxal bisacrylamide. As against comparable non-crosslinked, soluble polyvinyl acetals, polyvinyl acetals having a low degree of crosslinking according to the present invention show increased intrinsic viscosities and surprisingly exhibit advantageous properties in thermoplastic forming, in particular when extruded in a plastified form. The polyvinyl acetals having a low degree of crosslinking furthermore have improved mechanical properties in comparison with non-crosslinked polyvinyl acetals and, in the form of plastified films, are particularly advantageously employed in the production of composite glass.Type: GrantFiled: October 2, 1992Date of Patent: November 22, 1994Assignee: Hoechst AktiengesellschaftInventors: Matthias Gutweiler, Matthias Kroggel
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Patent number: 5362831Abstract: A polymer conjugate consisting essentially of: from 90 to 99.9 mol % of units represented by the formula ##STR1## from 0.1 to 5 mol % of units represented by the formula ##STR2## wherein one of R.sub.1 and R.sub.2 is a copolymer residue of the formula ##STR3## and the other one is hydrogen atom; from 0 to 9.9 mol % of units represented by the formula ##STR4## wherein R is a phenyl or t-butoxy group, R.sub.3 is H or an acetyl group, A and A.sub.1 which may be the same or different, represent a chemical single bond, an amino acid residue or peptide spacer selected from .beta. Ala, Gly, Phe-Gly, Phe-Phe-, Leu-Gly, Val-Ala, Phe-Ala, Leu-Phe, Leu-Ala, Phe-Leu-Gly, Phe-Phe-Leu, Leu-Leu-Gly, Phe-Tyr-Ala, Phe-Gly-Phe, Phe-Phe-Gly, Phe-Leu-Gly-Phe, Gly-Phe-Leu-Gly-Phe,-.beta.Ala, Phe-Gly-.beta.Ala, Phe-Phe-.beta.Ala, Leu-Gly-.beta.Ala, Val-Ala-.beta.Ala, Phe-Ala-.beta.Ala, Leu-Phe-.beta.Ala, Leu-Gly-.beta.Ala, Phe-Leu-Gly-.beta.Ala, Phe-Phe-Leu .beta.Ala, Leu-Leu-Gly-.beta.Ala, Phe-Tyr-Ala-.beta.Ala, Phe-Gly-Phe-.Type: GrantFiled: June 16, 1993Date of Patent: November 8, 1994Assignee: Farmitalia Carlo Erba S.r.l.Inventors: Nicola Mongelli, Francesco Angelucci, Enrico Pesenti, Antonino Suarato, Giovanni Biasoli
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Patent number: 5357001Abstract: The invention relates to new optically active amino acid derivatives of the general formula (I) ##STR1## in which n, R, R.sub.1, R.sub.2, R.sub.3, X and A have the meaning given in the description, which amino acid derivatives contain sulphoxide or sulphone groups, to two basic synthetic routes for the preparation from sulphur-containing amino acids, to the polymerization of these monomers and to the use of the polymers as optically active adsorbents for chromatographic resolution of racemates to give the enantiomers.Type: GrantFiled: June 23, 1993Date of Patent: October 18, 1994Assignee: Bayer AktiengesellschaftInventors: Michael Grosse-Bley, Bruno Bomer, Rolf Grosser, Walter Lange, Franz-Peter Hoever, Dieter Arlt
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Patent number: 5354827Abstract: The invention relates to formulations for use as an adhesive component for treatment of tooth hard substance, a process for their preparation and their use.Type: GrantFiled: March 23, 1993Date of Patent: October 11, 1994Assignee: Bayer AktiengesellschaftInventors: Michael Muller, Werner Finger, Wolfgang Podszun, Jens Winkel
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Patent number: 5348991Abstract: An aqueous dispersion coating composition comprising at least one kind of resin, wherein any one of said resin or resins has at least one functional group selected from an active hydrogen-containing group, a substituted acylamide group and a water dispersible or water-soluble group, and wherein the resin composition as a whole contains each of the above described kinds of functional groups.Type: GrantFiled: June 5, 1992Date of Patent: September 20, 1994Assignee: Nippon Paint Co., Ltd.Inventors: Motoyoshi Yoshikawa, Hideyoshi Noda, Shinsuke Shirakawa, Noriyuki Tsuboniwa, Eiji Yamanaka, Satoshi Urano, Kazunori Kanda
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Patent number: 5347042Abstract: The invention relates to new optically active sulphur-containing amino acid derivatives, a process for their preparation, their polymerisation to give optically active polymers and the use of these optically active polymers as adsorbents for chromatographic separation of racemates into enantiomers.Type: GrantFiled: June 11, 1992Date of Patent: September 13, 1994Assignee: Bayer AktiengesellschaftInventors: Michael Grosse-Bley, Bruno Bomer, Rolf Grosser, Dieter Arlt, Walter Lange
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Patent number: 5336728Abstract: Oral hygiene compositions effective for preventing the adherent deposition of cariogenic bacteria on teeth comprise as active constituents polymers having defined repeating units comprising hydrocarbyl groups with pendant carboxyl and pendant polyalkylene oxide groups in defined ratio. The polymers themselves, their preparation, and a process for treating teeth with the compositions are also claimed.Type: GrantFiled: September 18, 1991Date of Patent: August 9, 1994Assignee: Imperial Chemical Industries PLCInventors: Martyn Humphries, Jozef Nemcek, Joseph F. Jaworzyn, John B. Cantwell, John J. Gerrard