Derived From Carboxylic Acid Containing At Least One Atom Of Nitrogen Patents (Class 526/215)
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Patent number: 6555637Abstract: In anionic polymerization using an anionic polymerization initiator, a tertiary organoaluminum compound (A) having in the molecule thereof a chemical structure represented by a general formula: Al—O—Ar wherein Ar represents an aromatic ring, and at least one Lewis base (B) selected from the group consisting of a tertiary polyamine compound, are caused to be present in the polymerization system. In this way, the polar monomer can be polymerized with a high polymerization initiation efficiency and a high living polymerization property and at a high polymerization rate even if the used polymerization initiator is suitable for industrial use, and a relatively mild cooling condition or a temperature condition near room temperature is adopted as a polymerization temperature condition.Type: GrantFiled: August 15, 2000Date of Patent: April 29, 2003Assignee: Kuraray Co., Ltd.Inventors: Kenichi Hamada, Kazushige Ishiura, Masaji Kato, Sachie Yaginuma
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Patent number: 6379599Abstract: The invention relates to a process for the preparation of molecularly imprinted polymers useful for separation of enzymes, which comprises the steps of reacting a complex of enzyme and affinity monomer, a comonomer and a crosslinker, with a polymerization initiator and a polymerization accelerator at ambient temperature and pressure for a period ranging between 2 to 24 hrs, thereby obtaining a crosslinked polymer, crushing the cross linked polymer obtained to fine particles, adding a solvent and extracting imprinted enzyme from the polymer, obtaining the molecularly imprinted polymer, contacting the imprinted polymer with aqueous solution containing imprinted enzyme or a mixture of imprinted enzyme and other enzymes and isolating the enzyme-adsorbed polymer.Type: GrantFiled: January 10, 2000Date of Patent: April 30, 2002Assignee: Council of Scientific and Industrial ResearchInventors: Alankar Arun Vaidya, Bhalchandra Shripad Lele, Mohan Gopalkrishna Kulkarni, Raghunath Anant Mashelkar
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Patent number: 6355743Abstract: In a process for producing vinyl chloride polymers including polymerization of vinyl chloride or a monomer mixture containing it in an aqueous medium using a polymerization initiator, the polymerization is carried out in the presence of a chelating agent. The chelating agent is capable of chelating iron (II) and iron (III). This process makes it possible to prevent polymer scales from adhering to, e.g. baffle surfaces facing inner walls of the polymerization vessel, which has been hitherto difficult to do so, and less cause initial discoloration of polymer products to improve quality. It is more effective to use a polymerization vessel previously provided with coating films of a polymer scale preventive agent on the inner walls of the polymerization vessel and the other portions with which monomers come into contact in the course of polymerization.Type: GrantFiled: October 1, 1999Date of Patent: March 12, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Makoto Ooura, Kaname Inoue, Masakuni Yamamoto, Tadashi Amano
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Patent number: 6291544Abstract: The present invention provides pure, storage stable, reactive esters of 2-cyanopenta-2,4-dienoic acid and the adhesives and polymers thereof. The monomers of the present invention have the formula: where R is alkyl, alkenyl, alkynyl, alkoxyalkyl, alkenyloxyalkyl, alkynyloxyalkyl, poly(oxyalkyl), aryl, cycloalkyl or a heterocyclyc radical. R may also be one of the foregoing moieties substituted with one or more of the other moieties; this includes the case of the substituent itself being substituted, and may also contain halogens. The reactive monomers of the present invention can be formulated into adhesives by incorporating certain modifiers and additives such as polymeric thickeners, viscocity regulators, plasticizers, thixotrophic agents, compatibilizers, adhesion promoters, pigments and colorants, fillers, deodorants and perfumes. They can also be used in composition with other monomers containing a reactive double bond such as for example cyanoacrylates.Type: GrantFiled: August 10, 1998Date of Patent: September 18, 2001Assignee: Chemence, Inc.Inventor: Dimiter Lubomirov Kotzev
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Patent number: 6291620Abstract: Process for the synthesis of block polymers, homopolymers and copolymers of narrow polydispersity having formula (1) by contacting selected vinyl monomer(s), vinyl-terminated compound(s) and free radicals in which effective control of production of polymer is achieved by controlling the mole ratio of vinyl monomer(s), vinyl-terminated compound(s) and free radicals relative to one another; and polymers produced therebyType: GrantFiled: November 20, 1997Date of Patent: September 18, 2001Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific Industrial Research OrganizationInventors: Graeme Moad, Catherine Louise Moad, Julia Krstina, Ezio Rizzardo, Thomas Robert Darling, Charles Thomas Berge
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Patent number: 6281310Abstract: A methyacryloyl or acryloyl derivative of an ester of cyanoacetic acid may be of the formula: CN—CH2—COOR2OCOCR1═CH2. R1 may be H or CH3, and R2 may be one of the group of moieties including alkyl, alkenyl, alkynyl, alkoxyalkyl, poly (oxyalkyl), aryl, cycloalkyl, and heterocyclyc radical, or substitited combinations thereof. Further, R2 may include between 1 and 16 carbon atoms or heteroatom ring members.Type: GrantFiled: August 10, 1998Date of Patent: August 28, 2001Assignee: Chemence, Inc.Inventor: Dimiter Lubomirov Kotzev
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Patent number: 6274686Abstract: This invention relates to molecularly imprinted polymers (MIPs) using an amide as the hydrogen bonding functional group. The amide MIPs made according to this invention exhibited enantiomeric recognition of the imprinted species when evaluated by high performance liquid chromatography (HPLC) even in an aqueous phase. In addition, the amide MIPs demonstrated improved enantiomeric resolution and load capacity.Type: GrantFiled: May 30, 1997Date of Patent: August 14, 2001Inventors: Klaus Mosbach, Cong Yu
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Patent number: 6238486Abstract: The invention provides novel cationic flocculant dispersion polymers that can be utilized in the methods disclosed herein. This invention also provides methods for detecting cationic flocculants wherein said flocculants may be made via a dispersion process, a latex process or a dry polymer process. The flocculants are used to flocculate solids from liquid components of an industrial food process. The detection method involves the use of monoclonal antibodies to determine the presence or concentration of the cationic flocculants in the liquids.Type: GrantFiled: March 10, 1999Date of Patent: May 29, 2001Assignee: Nalco Chemical CompanyInventors: Andrew J. Dunham, Cathy C. Johnson, Kristine S. Salmen, John W. Sparapany, Anthony G. Sommese
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Patent number: 6207771Abstract: A process for forming a hydrophobically modified water soluble or water dispersible polymer by utilizing a micellar polymerization technique comprising the steps of: (1) providing a reaction medium including one or more water soluble or water dispersible monomers and one or more surface active agents or protective colloids; (2) incrementally adding one or more ethylenically unsaturated monomers having hydrophobic properties to said reaction medium; (3) initiating polymerization of said one or more water soluble or water dispersible monomers with said one or more ethylenically unsaturated monomers having hydrophobic properties; and (4) continuing polymerization of said one or more water soluble or water dispersible monomers with said one or more ethylenically unsaturated monomers having hydrophobic properties while incrementally adding said one or more ethylenically unsaturated monomers having hydrophobic properties to said reaction medium is provided.Type: GrantFiled: October 21, 1999Date of Patent: March 27, 2001Assignee: Rhodia ChimieInventor: Eric H. Larson
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Patent number: 6201082Abstract: A fluorine-containing macroazo compound having a fluorine segment in the molecule is useful as a polymerization initiator for producing, for example, fluorine-containing block polymers.Type: GrantFiled: October 1, 1999Date of Patent: March 13, 2001Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Kazuo Shiraki, Nobutaka Shimamura
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Patent number: 6150484Abstract: The present invention is a process for producing a polyvinyl chloride paste blending resin comprising polymerizing a vinyl chloride-based monomer by a suspension polymerization in an aqueous medium, wherein as a suspending agent, both (A) and (B) are used in a mixing weight ratio (A)/(B) of 99/1 to 50/50, and a total amount of said (A) and said (B) is 0.1 to 1.0 part by weight based on 100 parts by weight of the vinyl chloride-based monomer, said (A) being a partially hydrolyzed water-soluble poly(vinyl alcohol) having a viscosity at 20.degree. C. of 4% aqueous solution by weight of 20 to 110 cps and the degree of hydrolysis of 86 to 99 mol %, and said (B) being a partially hydrolyzed water-soluble poly(vinyl alcohol) having a viscosity at 20.degree. C. of 4% aqueous solution by weight of 5 to 10 cps and the degree of hydrolysis of 70 to 80 mol %.Type: GrantFiled: March 2, 1998Date of Patent: November 21, 2000Assignee: Kaneka CorporationInventors: Teiji Kobayashi, Taizou Yamamoto, Masahiro Kubo, Taizou Koike
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Patent number: 6127494Abstract: A process for forming a hydrophobically modified water soluble or water dispersible polymer by utilizing a micellar polymerization technique comprising the steps of: (1) providing a reaction medium including one or more water soluble or water dispersible monomers and one or more surface active agents or protective colloids; (2) incrementally adding one or more ethylenically unsaturated monomers having hydrophobic properties to said reaction medium; (3) initiating polymerization of said one or more water soluble or water dispersible monomers with said one or more ethylenically unsaturated monomers having hydrophobic properties; and (4) continuing polymerization of said one or more water soluble or water dispersible monomers with said one or more ethylenically unsaturated monomers having hydrophobic properties while incrementally adding said one or more ethylenically unsaturated monomers having hydrophobic properties to said reaction medium is provided.Type: GrantFiled: July 14, 1998Date of Patent: October 3, 2000Assignee: Rhodia ChimieInventor: Eric H. Larson
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Patent number: 6013748Abstract: Disclosed is a novel aromatic ester compound represented by the general formula ##STR1## in which Pn is a 1,4-phenylene group, R.sup.1 is an alkyl group having 1 to 4 carbon atoms, R.sup.2 is a group selected from the group consisting of perfluoroalkyl groups having 1 to 4 carbon atoms, cyano group, nitro group, 2,2-dicyanoethenyl group and methylsulfonyl group and the subscript n is a number of 2, 3 or 4. These aromatic ester compounds are useful as a second-order non-linear optical material in the ultraviolet wavelength range so that a resin film containing the compound has a good second-order non-linear optical coefficient d.sub.33 of 2-4.times.10.sup.-9 esu.Type: GrantFiled: March 24, 1998Date of Patent: January 11, 2000Assignee: Japan as represented by Director General of Agency of Industrial Science and TechnologyInventors: Hiroo Matsuda, Takashi Fukuda, Shinji Yamada, Tatsumi Kimura, Masao Kato, Xuan-Ming Duan, Shuji Okada, Hachiro Nakanishi
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Patent number: 5994419Abstract: Rapidly dissolving/absorbing free-flowing powders of hydrophilic/superabsorbent (co)polymers, having irregular nonspherical morphology and a particle size distribution ranging from 100 .mu.m to 800 .mu.Type: GrantFiled: November 14, 1997Date of Patent: November 30, 1999Assignee: Elf Atochem S.A.Inventors: Christian Collette, Manuel Hidalgo, Jean-Marc Corpart, Andre Kowalik, Paul Mallo
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Patent number: 5994486Abstract: A fluorine-containing macroazo compound having a fluorine segment in the molecule is useful as a polymerization initiator for producing, for example, fluorine-containing block polymers.Type: GrantFiled: May 27, 1997Date of Patent: November 30, 1999Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Kazuo Shiraki, Nobutaka Shimamura
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Patent number: 5977278Abstract: The present invention relates to polymers having the formula: ##STR1## wherein: M, Q, X, Y, Z, R.sup.3 and R.sup.4 are as defined in the text.Type: GrantFiled: May 7, 1998Date of Patent: November 2, 1999Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research OrganisationInventors: Ezio Rizzardo, San Hoa Thang, Graeme Moad, Charles T. Berge
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Patent number: 5958385Abstract: The invention relates to a chain end functionalised polymer of formula: ##STR1## in which: the polymer chain (P) is a hydrophobic chain obtained by radical polymerisation of at least one monomer,R represents a hydrogen atom or a linear or branched hydrocarbon chain having 1 to 8 carbon atoms optionally substituted with at least one group selected from CO.sub.2, NH.sub.2, OH or a phenyl group, itself being optionally substituted,A and B, identical or different, each represent a single bond, a saturated or unsaturated linear or branched hydrocarbon chain having from 1 to 16 carbon atoms, it being possible for it to contain an amide bond or a peptide chain having 2 to 4 amino acids, particularly natural amino acids,the NH.sub.2 and/or COOH groups being free or salified.The invention also relates to the use of the above products as surfactants and more particularly as wetting agents, dispersing agents of solid particles and for preparing microdispersions of polymers, in particular microgels and microlatexes.Type: GrantFiled: March 28, 1997Date of Patent: September 28, 1999Assignee: LVMH RechercheInventors: Carole Tondeur, Henri-Gerard Riess, Alain Meybeck, Jean-Francois Tranchant
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Patent number: 5959050Abstract: The claimed invention is directed to a molecularly imprinted support formed from at least two distinct acylic monomers and at least one imprinted molecule. The support comprises beads having a uniform surface for reproducible presentation thereon.Type: GrantFiled: July 5, 1996Date of Patent: September 28, 1999Inventors: Klaus Mosbach, Andrew G. Mayes
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Patent number: 5883209Abstract: The production process includes starting suspension polymerization of vinyl chloride-based monomer in a polymerization vessel in the presence of a particular combination of suspending agents; and, at the time when a polymerization conversion has reached 5 to 60%, further adding to the reaction mixture a partially saponified polyvinyl alcohol having an average polymerization degree of 1,500 to 4,000 and a saponification degree of 75 to 98 mole %, wherein a carboxylic acid ester of polyhydric alcohol is further added to at least one one selected from a content inside the polymerization vessel prior to the start of the polymerization, a content inside the polymerization vessel during the polymerization, and the resulting polymer. According to the process, there is obtained a vinyl chloride polymer having a large bulk specific gravity and a fast gelation rate, and from the polymer, a formed part small in both the number of fish eyes and the amount of residual monomer can be obtained.Type: GrantFiled: September 9, 1996Date of Patent: March 16, 1999Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshihiko Nakano, Tadashi Amano
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Patent number: 5872198Abstract: A suspension polymerization technique is provided for molecular imprinting based on the use of a perfluorocarbon liquid as the dispersing phase that does not interfere with the interactions between functional monomers and print molecules required for the recognition process during molecular imprinting, and provides controllable particle sizes within less than about 5 .mu.m to about 100 .mu.m.Type: GrantFiled: May 27, 1997Date of Patent: February 16, 1999Inventors: Klaus Mosbach, Andrew G. Mayes
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Patent number: 5821311Abstract: The claimed invention is directed to stabilizers, polymers, and emulsifiers useful in preparing molecularly imprinted materials having recognition capabilities corresponding to the imprint molecule.Type: GrantFiled: July 5, 1996Date of Patent: October 13, 1998Inventors: Klaus Mosbach, Andrew G. Mayes
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Patent number: 5801221Abstract: Multiple-phase transition copolymers are formed which can selectively bind and release a chemical, or which can selectively catalyze a specific chemical reaction.Type: GrantFiled: June 2, 1995Date of Patent: September 1, 1998Assignee: Massachusetts Institute of TechnologyInventors: Toyoichi Tanaka, Masahiko Annaka, Saturo Masamune
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Patent number: 5789506Abstract: A polymeric monomer (A) having as a main component thereof a (meth)acryl type monomer which is subjected to aqueous suspension polymerization in the presence of a compound (B) which is substantially insoluble in water and sparingly soluble in the polymeric monomer (A). The compound (B) has at least one, preferably two or more, structural units, selected from the group consisting of --SH, --S--S--, --COOH, --NO.sub.2, and --OH. The use of compound (B), in the suspension polymerization of the (meth)acryl type monomer, represses of the production of by-produced minute particles due to sympathetic emulsion polymerization. The suspension polymerization permits production of (meth)acryl type polymer particles having high heat stability and a small range of particle diameters.Type: GrantFiled: October 28, 1996Date of Patent: August 4, 1998Assignee: Nippon Shokubai Co., Ltd.Inventors: Hironobu Toribuchi, Nobuaki Urashima, Yoshikuni Mori
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Patent number: 5786436Abstract: A polymer useful as an inorganic pigment dispersant is provided. The polymer is derived from monomers consisting essentially of an ethylenically unsaturated aromatic monomer, an ethylenically unsaturated acid monomer, and an ethylenically unsaturated amide monomer. The amount of said ethylenically unsaturated acid monomer is sufficient to permit said polymer to associate with an inorganic pigment in an aqueous medium in a manner which disperses said inorganic pigment in said aqueous medium to form a stable aqueous dispersion of said inorganic pigment, and the amount of said ethylenically unsaturated aromatic monomer is sufficient to reduce the water sensitivity of a dried coating of a latex paint comprised of said stable aqueous dispersion of said inorganic pigment. A process of preparing a polymer useful as an inorganic pigment dispersant and a method of preparing an inorganic pigment dispersion useful in the preparation of latex paints are also provided.Type: GrantFiled: July 11, 1997Date of Patent: July 28, 1998Assignee: Henkel CorporationInventors: Stephen A. Fischer, Michael S. Wiggins, Bruce Matta
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Patent number: 5773542Abstract: A process for producing polymer particles comprising polymerizing a water-soluble polymerizable monomer in a system comprising a hydrophobic organic solvent inert to the polymerization and an aqueous solution of the water-soluble polymerizable monomer, the process being characterized in that the polymerization is carried out in the presence of, as a dispersant, an anionic surface active agent represented by formula (I): ##STR1## wherein R.sup.1 represents a straight-chain or branched alkyl, alkenyl or 2-hydroxyalkyl group having 5 to 29 carbon atoms; M.sup.1 and M.sup.2, which may be the same or different, each represent an alkali metal ion, an ammonium ion or a hydrogen atom; and n represents 1 or 2.Type: GrantFiled: March 22, 1996Date of Patent: June 30, 1998Assignee: Kao CorporationInventors: Takashi Koudate, Yasunori Hosokawa, Yoko Hanada
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Patent number: 5773543Abstract: A process for the free radical initiated polymerization of unsaturated species characterized by the use of compound of Formula (I) as chain transfer agents: ##STR1## wherein: X is selected from hydrogen; CN; optionally substituted aryl; COOH; COOR; C(O)NHR.sup.6 ; C(O)NR.sup.7 R.sup.8 ; and halogen;Q is selected from COOR.sup.1 ; CN; and C(O)NR.sup.7 R.sup.8 ;Y is selected from hydrogen; C.sub.1 to C.sub.6 alkyl; C.sub.1 to C.sub.6 alkyl substituted with one or more substituents selected from hydroxy, amino, C.sub.1 to C.sub.6 alkoxy, C.sub.1 to C.sub.6 alkoxycarbonyl, halogen, CN and optionally substituted aryl; C.sub.1 to C.sub.6 alkenyl; and C.sub.1 to C.sub.6 alkynyl;Z is selected from COOR.sup.2 ; CN; and optionally substituted aryl;R.sup.3 and R.sup.4 are the same or different and are selected from hydrogen C.sub.1 to C.sub.4 alkyl and halogen; or R.sup.3 and R.sup.Type: GrantFiled: August 1, 1996Date of Patent: June 30, 1998Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Ezio Rizzardo, San Hoa Thang, Graeme Moad, Charles Thomas Berge
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Patent number: 5739229Abstract: A process for the preparation of thermoplastic resin comprising: heating a mixture comprised of a free radical initiator, a stable free radical agent, at least one polymerizable monomer compound and an electron acceptor (EA) compound, to form a thermoplastic resin containing a homopolymeric segment or segments and wherein said process possesses a high monomer to polymer conversion and a narrow polydispersity.Type: GrantFiled: November 7, 1995Date of Patent: April 14, 1998Assignee: Xerox CorporationInventors: Barkev Keoshkerian, Michael K. Georges, Peter M. Kazmaier, Gordon K. Hamer
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Patent number: 5527870Abstract: An isobutylene is polymerized in the presence of an aromatic initiator and a catalyst under the conditions that either a chlorinated hydrocarbon or an aromatic hydrocarbon is used singly or in admixture with an aliphatic hydrocarbon so that the reaction solution has a dielectric constant of 1 to 5 and a solubility parameter of 7.5 to 9.0.Type: GrantFiled: January 10, 1995Date of Patent: June 18, 1996Assignee: Kanagafuchi Kagaku Kogyo Kabushiki KaishaInventors: Takuya Maeda, Hideo Kawachi, Masanobu Tamura, Shun Wachi
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Patent number: 5516852Abstract: A method of preparing a high molecular weight water-soluble cationic copolymer by reacting in an aqueous solution at least one N-vinylamide and at least one cationic quaternary amine monomer in the presence of a free radical initiator and a salt of ethylenediamine tetraacetic acid and subjecting the formed polymer to an acid or base to form an N-vinylamide/N-vinylamine/cationic quaternary amine copolymer product.Type: GrantFiled: April 18, 1995Date of Patent: May 14, 1996Assignee: W. R. Grace & Co.-Conn.Inventors: Lawrence L. Kuo, Roger Y. Leung, Kenneth S. Williams
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Patent number: 5420218Abstract: A polymeric monomer (A) having as a main component thereof a (meth)acryl type monomer which is subjected to aqueous suspension polymerization in the presence of a compound (B) which is substantially insoluble in water and sparingly soluble in the polymeric monomer (A). The compound (B) has at least one, preferably two or more, structural units, selected from the group consisting of --SH, --S--S--, --COOH, --NO.sub.2, and --OH. The use of compound (B), in the suspension polymerization of the (meth)acryl type monomer, represses of the production of by-produced minute particles due to sympathetic emulsion polymerization. The suspension polymerization permits production of meth)acryl type polymer particles having high heat stability and a small range of particle diameters.Type: GrantFiled: June 15, 1993Date of Patent: May 30, 1995Assignee: Nippon Shokubai Co., Ltd.Inventors: Hironobu Toribuchi, Nobuaki Urashima, Yoshikuni Mori
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Patent number: 5414064Abstract: Homopolymers of ethylene or copolymers of ethylene with minor amounts of other C.sub.3 -C.sub.12 -alk-1-enes are prepared by catalytic polymerization in a suspension or in the gas phase in the presence of an antistatic agent at from 50 to 120.degree. C. and from 5 to 50 bar by a process in which the antistatic agent used is a mixture of the following substances:a) a metal salt of medialanic acid of the formula (I) ##STR1## b) a metal salt of an anthranilic acid of the general formula (II) ##STR2## where the organic radical R.sup.1 is either.alpha.)--CO--(CH.sub.2).sub.x --CH.sub.3 (II.alpha.)or.beta.)--CO--(CH.sub.2).sub.y --CH.dbd.CH--(CH.sub.2).sub.z --CH.sub.3(III.beta.)and x, y and z are each an integer and are from 6 to 18 for x, from 1 to 16 for y, from 1 to 16 for z and from 4 to 17 for y+z, andc) a polyamine obtainable by reacting epichlorohydrin and an aliphatic primary monoamine or an N-alkylalkylenediamine of the general formula (IV)R.sup.2 NH--R.sup.3 --NH.sub.2 (IV),whereR.sup.2 is C.sub.8 -C.Type: GrantFiled: July 14, 1994Date of Patent: May 9, 1995Assignee: BASF AktiengesellschaftInventors: Martin Lux, Guido Funk, Roland Saive, Hans-Helmut Goertz, Rainer Konrad
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Curable composition comprising crosslinkable polymers prepared from oligomeric chain transfer agents
Patent number: 5371151Abstract: A curable composition comprising a crosslinkable copolymer, wherein the copolymer is the free radical polymerization product of a mixture of monomers in the presence of a terminally unsaturated oligomeric chain transfer catalyst. Such compositions have advantageous properties when used in a variety of products including high performance coatings.Type: GrantFiled: August 9, 1993Date of Patent: December 6, 1994Assignee: E. I. du Pont de Nemours and CompanyInventors: Charles T. Berge, Michael J. Darmon, Joseph A. Antonelli -
Patent number: 5362826Abstract: A method of preparing macromonomer compositions of a limited average molecular weight containing an olefinic polymerizable end group. The macromonomers may suitably comprise the polymerization product of methacrylate, methacrylonitrile, and methacrylamide monomers, derivatives thereof, and mixtures of such monomers.Type: GrantFiled: August 9, 1993Date of Patent: November 8, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Charles T. Berge, Michael J. Darmon, Joseph A. Antonelli
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Patent number: 5360881Abstract: Diallyloxyacetic acid and its basic addition salts, their preparation process and their application as cross-linking agents.Diallyloxyacetic acid and its basic addition salts, preparation process and application as cross-linking agents.Type: GrantFiled: May 24, 1993Date of Patent: November 1, 1994Assignee: Societe Francaise HoechstInventors: Paul Mallo, Christian Sidot, Alain Blanc, Yani Christidis
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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: 5288794Abstract: A cyanoacrylate monomer adhesive formulation which has improved thermal properties resulting from the inclusion in the formulation of an effective amount for enhancing the thermal resistance of the cured polymer of a mono, poly or hetero aromatic compound characterized by at least three substitutions on an aromatic ring thereof, two or more of said substitutions being electron withdrawing groups selected from the group consisting of NO.sub.2, CN, CF.sub.3, NR.sup.1.sub.3.sup.+, SR.sup.1.sub.2.sup.+, C(.dbd.O)R.sup.1, C(.dbd.O)OR.sup.1, NO, CCl.sub.3, SO.sub.2, S(.dbd.O), SO.sub.3, SO.sub.2 R.sup.1, SO.sub.2 OR.sup.1 and F, one or more of said substitutions being leaving groups selected from the group consisting of F, Br, Cl, I, NO.sub.2, CN, SOR.sup.1, SO.sub.2 R.sup.1 and SO.sub.2 OR.sup.1, and R.sup.1 is an optionally substituted hydrocarbon group. Example such compounds have the formula: ##STR1## where L is the leaving group and the W groups are the electron withdrawing groups.Type: GrantFiled: October 23, 1992Date of Patent: February 22, 1994Assignee: Loctite CorporationInventor: Shabbir Attarwala
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Patent number: 5264530Abstract: A improved method of free radical polymerization in an aqueous system, such as an emulsion or suspension process. The polymerization is conducted in the presence of a relatively low molecular weight macromonomer such as can be made with a metal chelate chain transfer catalyst. This method is useful for reducing the molecular weight of a variety of polymers and copolymers, including acrylic and olefinic polymers.Type: GrantFiled: May 1, 1992Date of Patent: November 23, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventors: Michael J. Darmon, Charles T. Berge, Joseph A. Antonelli
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Patent number: 5247034Abstract: This invention is based upon the discovery that the characteristics of toner resins made by emulsion polymerization can be improved by utilizing amino acid soaps. Such amino acid soaps are typically salts of alkyl sarcosinates, such as ammonium lauryl sarcosinate and sodium lauryl sarcosinate. Toner resins which are made utilizing such amino acid surfactants do not exhibit significant electrical charge effects from the residual level of amino acid soap in the resin compared to resins made using other soap types, such as rosin acid soaps, fatty acid soaps, and the like. They also generally contain a lower level of ash since salts do not need to be used in their coagulation. As a result of the low level of ash, the toner resin made from the amino acid soap exhibits excellent resistance to moisture sensitivity and adsorption.Type: GrantFiled: October 5, 1992Date of Patent: September 21, 1993Assignee: The Goodyear Tire & Rubber CompanyInventors: Robert D. Mate, Gary L. Burroway
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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: 5128422Abstract: Block copolymers based on polyphenylene ethers and polycondensates obtained by a process that comprises of the following steps:a polyphenylene ether with a functional end group is prepared by oxidative coupling of a mixture of 90.0 to 99.8 mole % of a substituted phenol and 10.0 to 0.2 mole % of a functionalized phenol;a polycondensation of suitable monomers is then carried out in the presence of this functionalized polyphenylene ether,are disclosed.Type: GrantFiled: February 9, 1990Date of Patent: July 7, 1992Assignee: Huels AktiengesellschaftInventors: Udo Kowalczik, Martin Bartmann, Heinz G. Poll
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Patent number: 5086079Abstract: A process for producing styrene-containing polymers having a narrow particle size distribution, comprising the steps:(i) preparing a polymerization mixture, said mixture comprisinga) an organic phase comprising at least 50 wt %. styrene and a monomer-soluble polymerization initiator, andb) an aqueous phase comprising water, an organic protective colloid and a substantially water insoluble inorganic suspension stabilizer;(ii) adding to said polymerization mixture 50-500 ppm of a metal carbonate, bicarbonate or mixtures thereof based on said aqueous phase; and(iii) polymerizing said polymer mixture to produce said styrene-containing polymer particles.Type: GrantFiled: January 10, 1991Date of Patent: February 4, 1992Assignee: Huels AktiengesellschaftInventors: Dirk Reese, Horst Leithoeuser
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Patent number: 5066743Abstract: The invention relates to a tertiary ammonium alkyl carboxylate primer for bonding surface with cyanoacrylate adhesives, and to a method of bonding low surface energy surfaces using such tertiary ammonium alkyl carboxylates. A preferred primer is tridodecylammonium stearate and preferred solvents for the tertiary ammonium alkyl carboxylate are non-aqueous, low surface tension organic solvents.Type: GrantFiled: August 16, 1990Date of Patent: November 19, 1991Assignee: Loctite CorporationInventors: Yoshihisa Okamoto, Philip T. Klemarczyk
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Patent number: 4983698Abstract: An improved cationic water-soluble polymer is prepared from acrylamide, a cationic monomer such as dimethylaminoethyl methacrylate dimethylsulfate quaternary, and a waste stream which is produced as a result of the transesterification reaction between dialkylamino alcohols and acrylates which is used to prepare the cationic monomer. The polymers are especially useful in dewatering applications.Type: GrantFiled: November 30, 1988Date of Patent: January 8, 1991Assignee: Exxon Chemical Patents Inc.Inventors: Peter M. Robinson, Nguyen Van-Det
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Patent number: 4956430Abstract: The invention relates to the production of high molecular weight vinyl lactam-quaternized amino acrylamide copolymers having less than 0.1% residual unreacted monomer, which comprises: subjecting the monomers to solution polymerization in the presence of a buffering agent having chelating properties for complexing with traces of heavy metals; controlling the pH of the polymerization to a level above 5.5 while continuously ebulating nitrogen gas through the system during reaction and incrementally adding a free radical initiator in 2 to 4 stages during the conversion to copolymer. The invention also relates to the substantially pure vinyl lactam-acrylamide copolymer having a Brookfield viscosity of at least 75,000 cps. and a residual monomer content below 0.5 wt. %, for example less than 1,000 ppm.Type: GrantFiled: May 1, 1989Date of Patent: September 11, 1990Assignee: GAF Chemicals CorporationInventor: Mohammed Tazi
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Patent number: 4920187Abstract: Disclosed is a process for preparing polymer particles having monodisperse particle size comprising:adding a dispersion stabilizer, a polymerizable monomer and a polymerization initiator to an organic solvent to conduct polymerization, wherein said organic solvent has a solubility parameter (SP value) higher than that of the resultant polymer by at least 1.0 and said dispersion stabilizer is soluble in said organic solvent and has a free radical reactive group of 10.sup.-3 to 1 mmol/g; andremoving said organic solvent.Type: GrantFiled: January 4, 1988Date of Patent: April 24, 1990Assignee: Nippon Paint Co., Ltd.Inventors: Akio Kashihara, Chikayuki Otsuka, Katsukiyo Ishikawa
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Patent number: 4732954Abstract: A polyvinyl chloride having high bulk density and enhanced plasticizer absorption is produced by suspension polymerization of vinyl chloride monomer and comonomers wherein the initial suspension of ingredients is generated such that the oil phase droplets formed in the suspension are compositionally equivalent with respect to initiator, and the level of suspending agent and agitation are chosen to substantially preclude agglomeration of resin particles throughout the reaction, thereby producing resin wherein the resin grain size distribution results directly from the oil phase droplet distribution created at or near the start of the reaction. The process is conducted under conditions so that the polymerization is commenced before the final distribution is established. In this manner, seed particles of resin are produced from the vinyl monomer prior to establishing the final particle distribution.Type: GrantFiled: June 23, 1983Date of Patent: March 22, 1988Assignee: Occidental Chemical CorporationInventors: William F. Carroll, Jr., Stephen T. Fitzpatrick
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Patent number: 4705889Abstract: Aminosuccinic acid derivatives corresponding to the following general formula (I): ##STR1## wherein R represents an alkyl or alkenyl group having from 10 to 22 carbon atoms which may be branched and/or interupted by one or more oxygen atoms;n represents the number 2 or 3; andK represents hyrogen or a cation;a process for their preparation and their use.Type: GrantFiled: March 7, 1986Date of Patent: November 10, 1987Assignee: Bayer AktiengesellschaftInventors: Udo W. Hendricks, Adolf Schmidt
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Patent number: 4617362Abstract: The present invention provides a process for improved incorporation of diallyldimethylammonium chloride (DADMAC) into an acrylamide polymer. This invention makes use of a copolymerizable promoter monomer. Also provided by the present invention are inverse emulsion terpolymers of diallyldimethylammonium chloride. The improved incorporation resides in the use of a promoter monomer that is more reactive with acrylamide than is the DADMAC monomer and is selected from ##STR1## wherein R is --H or CH.sub.3 ;X is --O--, or --NH--;n has a value of 2-4; andA is an ion selected from the group consisting of Cl.sup. -, CH.sub.3 SO.sub.4.sup.-, HSO.sub.4.sup.- and NO.sub.3.sup.-.Specific monomers within this formula included, for example, 2-methacryloylethyltrimethylammonium chloride and 2-acryloylethyltrimethylammonium chloride.Typical of such promoter monomers are 2-methacryloylethyl trimethyl ammonium chloride and 2-acryloylethyl trimethyl ammonium chloride.Type: GrantFiled: May 16, 1985Date of Patent: October 14, 1986Assignee: Allied CorporationInventors: Larry W. Becker, Eric H. Larson
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Patent number: 4579922Abstract: An emulsifier for emulsion polymerization containing as its active component a half amide alkali salt and/or a half ester alkali salt of a succinic acid having a hydrocarbon substituent with 8 to 30 carbon atoms.Type: GrantFiled: May 16, 1985Date of Patent: April 1, 1986Assignee: Arakawa Kagaku Kogyo Kabushiki KaishaInventors: Tatsumi Toshine, Kimio Kawatani
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Patent number: 4540760Abstract: In a process for producing a polymer of monoallylamine comprising polymerizing monoallylamine, the polymerization is carried out using as a monomer inorganic acid salts (e.g., hydrochloride, sulfate, etc.) of monoallylamine in the presence of an azo type radical initiator.By the process, polymers of monoallylamine having a high degree of polymerization can be obtained in high yield.Type: GrantFiled: November 7, 1984Date of Patent: September 10, 1985Assignee: Nitto Boseki Co. Ltd.Inventors: Susumu Harada, Kiyoshi Shimizu, Hajime Serizawa