Solid Polymer Derived From Heterocyclic Materials As Sole Reactants Wherein Each Of The Heterocyclic Materials Contains A Hetero Ring Other Than Solely As A Lactam, 1,2-epoxy Or Carboxylic Acid Anhydride And Wherein None Of The Reactants Contains A Plurality Of Methylol Groups Or Derivatives Thereof Patents (Class 525/417)
  • Patent number: 4595732
    Abstract: Siloxane norbornane imide bisphenols are provided and method for making such materials. The siloxane-imide norbornane bisphenols can be used to make a variety of siloxane-imide organic block polymers useful as high performance thermoplastics.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: June 17, 1986
    Assignee: General Electric Company
    Inventor: Hong-Son Ryang
  • Patent number: 4582877
    Abstract: A polymeric composition comprising a poly-2-oxazoline reacted by transamidation with a carboxylic acid, anhydride, salts of a carboxylic acid or combination thereof which can be blended with another polymeric composition to form a water wettable blend. In another aspect, the poly-2-oxazoline is crosslinked with a polybasic carboxylic acid by transamidation. The crosslinked polymeric composition is useful as an absorbent for polar materials.
    Type: Grant
    Filed: July 27, 1984
    Date of Patent: April 15, 1986
    Assignee: The Dow Chemical Company
    Inventors: William J. Fairchok, Bruce P. Thill, Ralph E. Friedrich, Mark J. McKinley
  • Patent number: 4578433
    Abstract: The long-term stability of the electrical conductivity of pyrrole polymers is improved by a process in which the polymers are treated with an aqueous acid. Pyrrole polymers treated in this manner are used as conductor elements in the electrical industry.
    Type: Grant
    Filed: December 20, 1984
    Date of Patent: March 25, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Muenstedt, Herbert Naarmann
  • Patent number: 4551506
    Abstract: Water-soluble cationic polymers having clay soil removal/anti-redeposition properties, which comprise a polymer backbone, at least two M groups and at least one L-X group, wherein M is a cationic group attached to or integral with the backbone and contains an N+ positively charged center; X is a nonionic group selected from the group consisting of H, C.sub.1 -C.sub.4 alkyl or hydroxyalkyl ester or ether groups, or mixtures thereof; and L is a hydrophilic chain connecting groups M and X or connecting X to the polymer backbone. L also contains the polyoxyalkylene moiety --[(R'O).sub.m (CH.sub.2 CH.sub.2 O).sub.n ]--, wherein R' is C.sub.3 -C.sub.4 alkylene or hydroxyalkylene, m and n are numbers such that the moiety --(CH.sub.2 CH.sub.2 O).sub.n -- is at least about 50% by weight of said polyoxyalkylene moiety, and n is at least about 3. These cationic polymers are useful in detergent compositions.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: November 5, 1985
    Assignee: The Procter & Gamble Company
    Inventor: Eugene P. Gosselink
  • Patent number: 4548744
    Abstract: Water-soluble ethoxylated amine oxides having clay soil removal/anti-redeposition properties are disclosed herein. These amine oxides are selected from ethoxylated monoamine oxides, ethoxylated diamine oxides, ethoxylated polyamine oxides, ethoxylated amine oxide polymers, and mixtures thereof. These amine oxides are useful at from about 0.05 to about 95% by weight in detergent compositions which further comprise from about 1 to about 75% by weight of a nonionic, anionic, ampholytic, zwitterionic, or cationic detergent surfactant or mixture thereof. In addition to these detergent surfactants, the detergent composition can optionally comprise from 0 to about 80% by weight of a detergent builder.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: October 22, 1985
    Inventor: Daniel S. Connor
  • Patent number: 4546147
    Abstract: The present invention provides compositions which comprise a blend of: p0 (a) from about 10 to about 97 percent by weight of the composition of a polyamide resin having a minimum molecular weight of about 5,000; p0 (b) from about 3 to about 90 percent by weight of the composition of an elastomeric polymer which(1) is selected from a group consisting of poly(ethylene oxide), poly(propylene oxide), polycaprolactone, polytetrahydrofuran, polybutadiene, polyisoprene, polyisobutylene, poly(C.sub.1 -C.sub.8 alkylene acrylate), poly(C.sub.1 -C.sub.4 dialkylene siloxane), poly(ethylene-co-propylene), poly(ethylene-co-carbon monoxide), polyethylene-co-vinyl chloride, and poly(ethylene-co-vinyl acetate) polymers and copolymers and combinations thereof; and(2) contains a minimum of about 0.055 milliequivalents of acyllactam groups per gram of said elastomeric polymer.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: October 8, 1985
    Assignee: Monsanto Company
    Inventors: James C. Woodbrey, Marlowe V. Moncur, Ross M. Hedrick
  • Patent number: 4543388
    Abstract: Thermosettable prepolymers or resins are prepared by reacting a pyrazine containing at least two substituent groups which have a hydrogen atom attached to a carbon atom which is attached to the ring with a material containing at least two aromatic aldehyde groups. These prepolymers or resins are curable to thermoset products having good mechanical and thermal properties. Thermoset polymers having good mechanical and thermal properties are also prepared by homopolymerization in the presence of N,N'-bis-imides or copolymerization of these prepolymers with N,N'-bis-imides. The prepolymers are suitable for preparing composites.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: September 24, 1985
    Assignee: The Dow Chemical Company
    Inventors: Duane S. Treybig, Loren L. Swearingen
  • Patent number: 4537937
    Abstract: A resin chelating agent and process for making it are disclosed. The process comprises reacting the crosslinked product formed from the reaction of an aqueous suspension of a polyethyleneimine with a polycarboxylic acid with a mixture of a caustic agent comprising an alkali metal or alkaline earth metal hydroxide and carbon bisulfide to produce the finished resin. The resin can be produced in both head and powder form and is capable of selectively removing a large number of metallic contaminants from process and waste water streams. It is also essentially insensitive to the presence of alkali metal and alkaline earth metal ions dissolved in said streams.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: August 27, 1985
    Assignee: Olin Corporation
    Inventors: David W. Cawlfield, William M. Moore, John L. Stubbs, Jr.
  • Patent number: 4513116
    Abstract: Continuous halogenation of polymers is achieved by contacting polymer and halogenating agent in a continuous flow device in which the reactants are present as either co-continuous phases or wherein the halogenating agent is present as a continuous phase and the polymer is present as a discontinuous phase, the polymer is subjected to deformation during reaction and in which means are provided for disengaging reaction by-products and unreacted halogenating agent from the reaction mixture. In a preferred embodiment the polymer passes through three extruder-reactor zones under controlled conditions to achieve halogenation: feed, reaction (preferably vented), neutralization, and optionally a wash and exit zone. A continuous halogenating agent phase is achieved during reaction by avoiding complete filling of the reaction zone with polymer. Various halogenated polymers are produced, for example, halogenated linear low density polyethylene and halogenated butyl rubber.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: April 23, 1985
    Assignee: Exxon Research and Engineering Co.
    Inventors: Ronald C. Kowalski, William M. Davis, Neil F. Newman, Lewis Erwin
  • Patent number: 4499245
    Abstract: A curable resin composition comprising a mixture and/or a preliminary reaction product of (a) at least one cyanate compound selected from the group consisting of polyfunctional cyanate esters, prepolymers of the cyanate esters, coprepolymers of the cyanate esters and an amine and mixtures thereof, (b) a polyhydantoin resin and optionally (c) at least one maleimide compound selected from the group consisting of polyfunctional maleimides, prepolymer of the maleimides, coprepolymers of the maleimides and an amine and mixtures thereof is disclosed.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: February 12, 1985
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Nobuyuki Ikeguchi, Hidenori Kimbara
  • Patent number: 4491653
    Abstract: Disclosed is a method for fluorinating the surface of a polymeric solid for improving a surface property of such solid while substantially maintaining the bulk physical properties of said solid. This method comprises contacting the polymeric solid with dilute fluorine gas at a temperature not substantially above about room temperature and at a pressure not substantially above about 1 atmosphere for a time adequate to partially fluorinate said solid surface by forming stable fluorocarbon groups wherein the ratio of --CF.sub.2 -- groups to --CHF-- groups is not substantially above about 1:1, the proportion of oxygen-providing groups presend during said fluorination being restricted to an amount whereby substantially no oxidation of said surface occurs.
    Type: Grant
    Filed: June 7, 1983
    Date of Patent: January 1, 1985
    Assignee: Battelle Development Corporation
    Inventors: Vincent C. McGinniss, Francis A. Sliemers
  • Patent number: 4477635
    Abstract: Polymeric and copolymeric aminotriarylmethane dyes having polyester, polyethyleneimine, or polyurethane backbones, and a process for their preparation, are disclosed. The novel dyes are highly colored and resistant to leaching by solvents.
    Type: Grant
    Filed: January 4, 1982
    Date of Patent: October 16, 1984
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Smarajit Mitra
  • Patent number: 4440921
    Abstract: A carboxylated phosphazene polymer, comprising a phosphazene polymer backbone covalently coupled to a carboxylate-containing compound through a divalent organic radical attached at one end to the carboxylate by an amide bond formed at a primary aliphatic amino group of the radical and at the other end to a phosphorous of the phosphazene backbone.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: April 3, 1984
    Assignee: Research Corporation
    Inventors: Harry R. Allcock, Thomas X. Neenan, Walter C. Kossa
  • Patent number: 4436867
    Abstract: A creping adhesive comprises an admixture of poly 2-ethyl-2-oxazoline and a high molecular weight thermoplastic polymer.
    Type: Grant
    Filed: June 17, 1982
    Date of Patent: March 13, 1984
    Assignee: Kimberly-Clark Corporation
    Inventors: William S. Pomplun, Herbert E. Grube
  • Patent number: 4433115
    Abstract: Flame-resistant reinforced bodies are disclosed which are composed of reinforcing fibers, filaments or fabrics in a cured body of bis- and tris-imide resins derived from tris(m-aminophenyl) phosphine oxides by reaction with maleic anhydride or its derivatives, or of addition polymers of such imides, including a variant in which a mono-imide is condensed with a dianhydride and the product is treated with a further quantity of maleic anhydride.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: February 21, 1984
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Indra K. Varma, George M. Fohlen, John A. Parker
  • Patent number: 4410666
    Abstract: A curable resin composition comprising a mixture and/or a preliminary reaction product of (a) at least one cyanate compound selected from the group consisting of polyfunctional cyanate esters, prepolymers of the cyanate esters, coprepolymers of the cyanate esters and an amine and mixtures thereof, (b) a polyhydantoin resin and optionally (c) at least one maleimide compound selected from the group consisting of polyfunctional maleimides, prepolymer of the maleimides, coprepolymers of the maleimides and an amine and mixtures thereof is disclosed.
    Type: Grant
    Filed: January 27, 1981
    Date of Patent: October 18, 1983
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Nobuyuki Ikeguchi, Hidenori Kimbara
  • Patent number: 4385140
    Abstract: The present invention relates to new modified azulmic acids, several processes for their preparation and their use as intermediate products for the synthesis of numerous products.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: May 24, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kuno Wagner, Kurt Findeisen
  • Patent number: 4374215
    Abstract: The addition of a select group of crosslinkable vinyl monomers to low shrinking polyester molding compositions containing unsaturated polyesters results in moldings with improved surface characteristics.
    Type: Grant
    Filed: October 16, 1980
    Date of Patent: February 15, 1983
    Assignee: Union Carbide Corporation
    Inventor: Kenneth E. Atkins
  • Patent number: 4371673
    Abstract: Two types of water soluble complexes of retinoids possessing vitamin A-like biological activity and use but of lower toxicity are disclosed: (A) Cyclodextrin complexes of retinoid-polymers and (B) Complexes of retinoids with ether type derivatives of cyclodextrins.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: February 1, 1983
    Assignee: The United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventor: Josef Pitha
  • Patent number: 4369256
    Abstract: A novel polyaminic resin obtained by crosslinking a polyalkyleneamine (in particular polyethyleneamine) with diisocyanates in solution, is useful as a selective separation or extraction agent of a component having a "complementary" chemical structure (particularly heparin), by means of mere contact or "ionic exchange" with aqueous solutions containing it. Heparin is thus even quantitatively extracted from solutions containing it alone or in mixture with other glucosaminoglycanes. The polyamine can then release the "adsorbed" heparin and be recovered by a treatment with saline solutions. The novel resin is used in pharmaco-biological fields.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: January 18, 1983
    Assignee: Crinos Industria Farmacobiologica S.p.A.
    Inventors: Benito Casu, Giangiacomo Torri, Giorgio Zoppetti
  • Patent number: 4368137
    Abstract: This invention relates to polymerized oxyalkylated piperazines, to the salts and quaternaries thereof; and to uses thereof for example as demulsifiers, flotation aids, etc.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: January 11, 1983
    Assignee: Petrolite Corporation
    Inventor: Thomas J. Bellos
  • Patent number: 4331776
    Abstract: Masterbatches useful for lightweight polyamide molding or extrusion comprise polyamide, a pore-forming agent and a fusible binder that is compatible with the polyamide. Admixture of the masterbatch and granular polyamide polymer results in a polyamide composition which can be molded or extruded into a product having increased homogeneity and expansion uniformity.
    Type: Grant
    Filed: May 20, 1981
    Date of Patent: May 25, 1982
    Assignee: Rhone-Poulenc Industries
    Inventor: Jean-Pierre Gazonnet
  • Patent number: 4309324
    Abstract: A process is provided for producing polyhexamethylenimine by condensing hexamethylenediamine at 50.degree. to 300.degree. C. in the presence of a palladium catalyst. The process yields substantially linear, high-molecular-weight polyhexamethylenimines, especially novel polyhexamethylenimines having a molecular weight of at least 1,000. Polyhexamethylenimines having a molecular weight of at least 500 are useful as gelling agents for organic liquids.
    Type: Grant
    Filed: March 4, 1980
    Date of Patent: January 5, 1982
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Hitoshi Yuasa, Hirosuke Imai
  • Patent number: 4296020
    Abstract: Ethylenically unsaturated monomer solutions of ethylenically unsaturated polyester, polyester urethane and polyisocyanurate resins are quickly converted to moldable gels by the homogeneous formation therein of polyurea resins by the interaction of polyamines and polyisocyanates. Tack-free handleable moldable gels are formed within minutes which can be stored under normal conditions for long periods of time until molded. Fully cured intractable articles are formed by the polymerization of the ethylenically unsaturated ingredients.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: October 20, 1981
    Assignee: ICI Americas Inc.
    Inventor: Juan J. Magrans, Jr.
  • Patent number: 4265803
    Abstract: The invention entitled "Polymers containing polyalkylpiperidines and use thereof as stabilizers" provides a class of polymers in which groups containing sterically hindered polyalkylpiperidines are linked in the main chain of the polymers via bridging members containing 2-hydroxy-1,3-trimethylene groups.The polymers show superior stabilizing effects for various synthetic polymers such as polyolefins against degradation thereof induced by light and/or heat. The polymers have advantages, as compared with known stabilizer compounds, that they hardly volatile upon processing with heating or during storage of articles containing thereof, and that they are resistant to extraction with solvents from articles containing thereof.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: May 5, 1981
    Assignee: Sankyo Company Limited
    Inventors: Nobuo Soma, Syoji Morimura, Takao Yoshioka, Tomoyuki Kurumada
  • Patent number: 4256863
    Abstract: Build-up during vinyl halide, particularly vinyl chloride, polymerization is prevented by employing a polymerization process using a reactor having an adherent internal coating of a coating product derived from the admixture of at least polyethyleneimine; one or more of hydroquinone, p-benzoquinone, catechol and o-benzoquinone; and at least one o-aldehyde-substituted phenol, particularly salicylaldehyde. The preferred system is prepared from polyethyleneimine, hydroquinone and salicylaldehyde.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: March 17, 1981
    Assignee: Imperial Chemical Industries Limited
    Inventors: Malcolm P. McOnie, Philip D. Roberts
  • Patent number: 4254245
    Abstract: A method for preparing a furan-epoxy powder-like binder which comprises interaction of an epoxy diane resin with a nitrogen-containing furan monomer, such as furfuramide or 3-methyl-5-furylpyrazoline at a temperature ranging from 140.degree. to 160.degree. C. at a ratio of the nitrogen-containing furan monomer to the epoxy diane resin equal to 0.2:5 to 3.4:5 expressed in parts by weight. The process may be performed in the presence of trifurylborate at the weight ratio thereof to the epoxy diane resin equal to 0.05:5 to 0.6:5 expressed in parts by weight. The resulting product is cooled to a temperature of not more than 30.degree. C. and then disintegrated to a powder-like state. The furane epoxy binder prepared by the method according to the present invention does not get clogged for 45 days and may be stored for long periods of up to 6 months without any changes in its initial properties. Vicat deformation heat-resistance of the polymeric material produced with the use of said binder is as high as 230.
    Type: Grant
    Filed: December 14, 1978
    Date of Patent: March 3, 1981
    Inventors: Shavkat Madaliev, Gennady D. Varlamov, Ildgam A. Bekbulatov, Juldash Mamatov
  • Patent number: 4250274
    Abstract: Improved adhesive compositions for laminating plastic and particularly vinyl films to metal are described which contain about 15 to 30 percent by weight of a phenolic resol having a methylol content of about 15 to 50 percent by weight, about 25 to about 40 percent by weight of certain nonfunctional polyurethanes having a molecular weight of at least 20,000 and preferably 60,000 to 300,000 and about 35 to 55 percent by weight of a vinyl solution polymer, all in an organic solvent. The nonfunctional polyurethanes are thermoplastic polyesterurethanes devoid of reactive isocyanate and hydroxyl groups and are derived from monomeric polyisocyanates and polyhydroxy compounds chain-extended with a low molecular weight diol, preferably a cycloaliphatic diol, to the desired molecular weight. When the polyhydroxy compound is a polycaprolactone polyol, it is essential that chain extension be effected with a cycloaliphatic diol, preferably dimethylolcyclohexane.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: February 10, 1981
    Assignee: Lord Corporation
    Inventors: Dennis J. Damico, Vincent J. Pascarella
  • Patent number: 4243778
    Abstract: The thermosetting heat bondable lacquer comprises a solution of a thermosetting mixture of various resins in a solvent or mixture of solvents which boils at a temperature in the range of 50.degree. to 230.degree. C., preferably 130.degree. to 210.degree. C. The thermosetting mixture consists of a polyhydantoin resin, a polyhydroxy polyether or phenoxy resin and a polyurethane resin, each of which must have a pre-determined structure and a pre-determined specific viscosity. The composition of the thermosetting mixture must be within the hatched area in FIG. 1.The thermosetting heat bondable lacquer can be obtained by mixing solutions of the three resin components and can contain auxiliaries and additives and/or catalysts. If the solvent or mixture of solvents is removed from the heat bondable lacquer, e.g.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: January 6, 1981
    Assignee: Schweizerische Isola-Werke
    Inventors: Peter Heim, Karl Borer, Werner Allemann
  • Patent number: 4243580
    Abstract: An elastomeric copolyether-ester of improved combination of modulus and low temperature impact strength and flexibility is provided by the addition of about 5-45 percent by weight of an oxymethylene polymer. The copolyether-ester, having an inherent viscosity of at least 1, consists essentially of long-chain ester units derived from long-chain glycols and dicarboxylic acids and short-chain ester units derived from low molecular weight diols and dicarboxylic acids.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: January 6, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: David M. Gale
  • Patent number: 4228259
    Abstract: A dye for keratinic material comprises a water-soluble cationic polymer having a molecular weight ranging between about 800 and 10,000 and having secondary, tertiary or quaternary ammonium amine groups wherein said amine groups are either a part of, or aid in the direct or indirect linking to the polymer chain, an aryl or arylaliphatic chromophore or chromogen group carrying compound, with the proviso that when the main chain of the polymer has amine groups derived from the said chromophore or chromogen group carrying compound, the said main chain must also have at least 10 percent aliphatic amine groups relative to the total number of amine groups of the said chain.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: October 14, 1980
    Assignee: L'Oreal
    Inventors: Gregoire Kalopissis, Alexandre Zysmann, Henri Sebag, Guy Vanlerberghe, Jean-Louis Huron, Andree Bugaut
  • Patent number: 4224212
    Abstract: Dispersing agents comprising a poly(lower alkylene)imine chain to which are attached at least two polyester chains by means of salt and/or amide links and the use of these agents in the preparation of dispersions of solids, particularly dyestuffs and pigments, in organic liquids.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: September 23, 1980
    Assignee: Imperial Chemical Industries Limited
    Inventor: Arthur Topham
  • Patent number: 4220563
    Abstract: A heat-curable and solvent-soluble ester group-containing polymer composition is prepared by the steps of:(1) either (i) reacting a highly polymerized linear aromatic polyester with a diaryl carbonate to depolymerize it to a solvent-soluble low-molecular-weight polyester (component A) containing terminal aryl carboxylate groups, or (ii) effecting the above depolymerization in the presence of a compound containing at least two specified functional groups thereby to form a modified solvent-soluble low-molecular-weight polyester (component A') containing terminal aryl carboxylate groups; and(2) either (i) mixing the resulting component A or A' with a monomeric or solvent-soluble polymeric, polyfunctional compound (component B) containing at least two hydroxyl and/or primary or secondary amino groups or (ii) partially reacting the resulting component A or A' with the component B. The composition has superior workability in molding and curing, and gives cured molded products of high utilitarian value.
    Type: Grant
    Filed: November 1, 1977
    Date of Patent: September 2, 1980
    Assignee: Teijin Limited
    Inventors: Shigeyoshi Hara, Takeyoshi Yamada
  • Patent number: 4217429
    Abstract: Novel polymers having a linear backbone which is free from both branching and cross-linking, comprising quaternized nitrogen atoms linked to each other through trimethylene groups. By the term "linear backbone" is meant that the polymer has only acyclic groups, i.e. trimethylene, linking the nitrogen atoms in a single continuous chain; the polymer is free from "branching" when it has no repeating monomer units extending from the polymer backbone; and it is free from "cross-linking" when there is no joining of two linear backbones. These polymers are useful as antimicrobials, flocculating agents, antistatic agents, electroconductive agents for coating paper, chelating agents and bile acid binding agents, as well as in similar applications where their high charge to weight ratio and fully accessible nitrogen atoms can be employed. The polymers are obtained by the polymerization of dihydro-oxazine, reductive alkylation of the resulting polymer, followed by quaternization.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: August 12, 1980
    Assignee: Merck & Co., Inc.
    Inventors: Arthur F. Wagner, Nathaniel Grier, Tsung-Ying Shen
  • Patent number: 4206295
    Abstract: Novel polymers having a linear backbone which is free from both branching and cross-linking, comprising quaternized nitrogen atoms linked to each other through trimethylene groups. By the term "linear backbone" is meant that the polymer has only acyclic groups, i.e. trimethylene, linking the nitrogen atoms in a single continuous chain; the polymer is free from "branching" when it has no repeating monomer units extending from the polymer backbone; and it is free from "cross-linking" when there is no joining of two linear backbones. These polymers are useful as antimicrobials, flocculating agents, antistatic agents, electroconductive agents for coating paper, chelating agents and bile acid binding agents, as well as in similar applications where their high charge to weight ratio and fully accessible nitrogen atoms can be employed. The polymers are obtained by the polymerization of dihydro-oxazine, reductive alkylation of the resulting polymer, followed by quaternization.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: June 3, 1980
    Assignee: Merck & Co., Inc.
    Inventors: Arthur F. Wagner, Nathaniel Grier, Tsung-Ying Shen
  • Patent number: 4206104
    Abstract: Resin mixtures of N,N'-dihydroxyalkyl ester substituted imidazolidinediones are especially useful in coating compositions having a low organic solvent content. The substituted imidazolidinediones have the formula ##STR1## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, X is ##STR2## where the R" groups are independently hydrocarbon groups having from 1 to 17 carbon atoms.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: June 3, 1980
    Assignee: PPG Industries, Inc.
    Inventors: Rostyslaw Dowbenko, Ronald J. Lewarchik, William J. Birkmeyer
  • Patent number: 4189539
    Abstract: The reaction product of an epoxide and a polyalkylenepolyamine is prepared in bead form by dispersing a blend of the epoxide and polyalkylenepolyamine in a concentrated aqueous solution of an alkali metal hydroxide and then curing the dispersed blend. For example, dispersing a blend of triethylenetetramine and diglycidyl ether of bisphenol A in an agitated aqueous solution of 50 weight percent NaOH and curing the dispersed blend produces normally solid beads which are useful as a weak base ion exchange resin.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: February 19, 1980
    Assignee: The Dow Chemical Company
    Inventor: Eldon L. Ward
  • Patent number: 4169867
    Abstract: A thermoplastic molding composition being a suitable material for technical purposes comprises a mixture of an oxymethylene polymer and of an elastomeric copolyester having short-chain and long-chain diol elements as well. The molding composition is prepared by mixing and homogenizing the components and may contain usual additives, especially stabilizers.
    Type: Grant
    Filed: October 15, 1975
    Date of Patent: October 2, 1979
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karlheinz Burg, Gunther Kirsch
  • Patent number: 4163097
    Abstract: The invention relates to organic polymers which can be crosslinked under the action of light and which are suitable for carrying out photomechanical processes. These polymers are photochemically considerably more sensitive than known comparable polymers and their sensitivity can additionally also be further increased by means of a combination with sensitizers. The molecular weight is at least 1,000. The polymers contain, as light-sensitive groups, groups of the formula I ##STR1## wherein R and R.sub.1 independently of one another denote alkyl groups with at most 4 C atoms, or R and R.sub.1 conjointly denote the remaining part of a 5-membered to 6-membered carbocyclic ring.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: July 31, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Niklaus Baumann, Hans Zweifel, Marcus Bauman, John S. Waterhouse
  • Patent number: RE31193
    Abstract: The thermosetting heat bondable lacquer comprises a solution of a thermosetting mixture of various resins in a solvent or mixture of solvents which boils at a temperature in the range of 50.degree. to 230.degree. C., preferably 130.degree. to 210.degree. C. The thermosetting mixture consists of a polyhydantoin resin, a polyhydroxy polyether or phenoxy resin and a polyurethane resin, each of which must have a pre-determined structure and a pre-determined specific viscosity. The composition of the thermosetting mixture must be within the hatched area in FIG. 1.The thermosetting heat bondable lacquer can be obtained by mixing solutions of the three resin components and can contain auxiliaries and additives and/or catalysts. If the solvent or mixture of solvents is removed from the heat bondable lacquer, e.g.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: March 29, 1983
    Assignee: Schweizerische Isola-Werke
    Inventors: Peter Heim, Karl Borer, Werner Alleman