At Least One Reactant Which Forms Additional Polymer Contains A Heterocyclic Ring Patents (Class 525/186)
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Patent number: 4717496Abstract: A stiffening material composed of 30 to 80 weight percent filler particles and 70 to 20 weight percent binder which is thermoplastically deformable and has melt-adhesive properties in the temperature range of 50.degree. to 80.degree. C., wherein the filler particles are plastic particles or particles having plastic surfaces with a particle size distribution of 50 to 500 microns.Type: GrantFiled: March 4, 1985Date of Patent: January 5, 1988Assignee: Giulini Chemie GmbHInventors: Harald Brehmer, Emil Wilding
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Patent number: 4713428Abstract: The invention relates to compounds with structures of the formulae I to IV ##STR1## in which formulae Tr is a radical of formula V or VI ##STR2## A is --O-- or --NR.sup.1 --, R.sup.1 is hydrogen or a monovalent organic radical,X is a di- or trifunctional radical of a hydroxycarboxylic or amino-carboxylic acid after removal of the functional groups,R.sup.2, if m is 1, has one of the meanings of R.sup.1, or R.sup.Type: GrantFiled: September 12, 1986Date of Patent: December 15, 1987Assignee: Ciba-Geigy CorporationInventors: Rolf Mulhaupt, Alfred Renner, Horst Lauterbach
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Patent number: 4707527Abstract: Compositions based on polypyrrole are described having incorporated therein a polymer component having one or more segments wherein at least one segment is elastomeric. The polymer component is present in an amount of at least about 10 weight percent of the polypyrrole present. The compositions exhibit improved processing properties over those of polypyrrole. Also described is a process for producing the compositions in which a pyrrole compound is electrochemically polymerized in the presence of an at least partially dissolved polymer component having one or more segments wherein at least one segment is elastomeric.Type: GrantFiled: December 16, 1985Date of Patent: November 17, 1987Assignee: GTE Laboratories IncorporatedInventors: Mark A. Druy, Sukant K. Tripathy, Michael F. Rubner
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Patent number: 4705830Abstract: A block copolymer is disclosed which includes an ethylene-propylene copolymer segment (A) and a tetrahydrofuran segment (B). The weight ratio of (A) to (B) is 5/95 to 95/5, and the block copolymer has a number-average molecular weight of about 1,000 to about 1,000,000.Type: GrantFiled: May 24, 1985Date of Patent: November 10, 1987Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Tokuo Makishima, deceased, by Nobuko Makishima, legal representative, by Satoshi Ueki, legal representative, by Chichiro Imai, legal representative
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Patent number: 4699941Abstract: Hot melt pressure sensitive adhesive prepared from (a) a rubbery block copolymer containing a rubbery polyisoprene midblock portion and a plurality of crystalline poly(vinylarene) endblocks; (b) a tackifying resin compatible with the midblock portion and (c) poly(alkyloxazoline); and (d) an antioxidant. These adhesives are characterized by exceptional elastic memory, high tensile strength and excellent peel adhesion and, as such, are especially suited for use in elasticized bands for disposable items.Type: GrantFiled: August 12, 1985Date of Patent: October 13, 1987Assignee: National Starch and Chemical CorporationInventor: Catherine E. Salerno
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Patent number: 4696961Abstract: Novel light stabilizers, heat stabilizers and oxidation stabilizers for synthetic polymers have been synthesized; these are of the formula: ##STR1## in which R.sub.3 and R.sub.5 can be identical or different and are radicals of formula (III), (IV), (V), (VI) ##STR2## and R.sub.5 additionally can be a radical of formula VII ##STR3## and R.sub.4 is C.sub.2 -C.sub.Type: GrantFiled: September 20, 1984Date of Patent: September 29, 1987Assignee: Ciba-Geigy CorporationInventor: Giuseppe Cantatore
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Patent number: 4695488Abstract: A soil release composition comprising:(A) a polymer comprising 10 to 100% by weight of constituting units of the formula: ##STR1## wherein R.sub.f is a C.sub.3 --C.sub.21 fluoroalkyl group; R.sup.1 is a hydrogen atom or a C.sub.2 --C.sub.4 acyl group; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are, the same or different, each a hydrogen atom, a methyl group or an ethyl group; A is a group of the formula: --CH.sub.2 CH(OR.sup.1)CH.sub.2 --OCO-- which R.sup.1 is the same as defined in the above, --CO--, --(CH.sub.2).sub.k N(R.sup.2)CO-- in which R.sup.2 is the same as defined in the above and k is an integer of 1 to 10, or --(CH.sub.2).sub.Type: GrantFiled: March 3, 1986Date of Patent: September 22, 1987Assignee: Daikin Industries, Ltd.Inventors: Iwao Hisamoto, Masaru Hirai, Sueyoshi Ishikawa
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Patent number: 4694050Abstract: A process for absorbing polar materials using a crosslinked polymeric composition such as poly-2-ethyloxazoline and ethyleneamine tetracetic acid. The crosslinked polymeric composition swells into a gel-like mass in the presence of polar materials to entrap them.Type: GrantFiled: October 15, 1985Date of Patent: September 15, 1987Assignee: The Dow Chemical CompanyInventors: William J. Fairchok, Ralph E. Friedrich, Bruce P. Thill, Mark J. McKinley
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Patent number: 4684692Abstract: A moldable composition which comprises a novel random bromostyrene-containing copolymer and a flame-retardant synergist is disclosed. The molded composition exhibits at least a 94V-1 classification when tested in accordance with Underwriters' Laboratories Inc. Test Method UL94.Type: GrantFiled: December 16, 1986Date of Patent: August 4, 1987Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4683084Abstract: A flame retarding additive comprising an alternating copolymer of a brominated styrene and N-brominated phenylmaleimide, is blended with a matrix resin to produce molding compositions which when molded exhibit improved flame retarding characteristics. The flame retarding additives of this invention also exhibit non-blooming characteristics.Type: GrantFiled: February 3, 1986Date of Patent: July 28, 1987Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4678833Abstract: Miscible blends of poly-2-oxazolines and thermoplastic polymers are disclosed herein. These blends exhibit a single glass transition point indicative of a miscible blend. The blends of this invention are useful as membranes, particularly separation membranes for mixtures of organic compounds or organic compounds and water and pervaporation process.Type: GrantFiled: June 19, 1986Date of Patent: July 7, 1987Assignee: The Dow Chemical CompanyInventors: Kathleen M. McCreedy, Henno Keskkula, James C. Pawloski, Edward H. Yonkers
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Patent number: 4678844Abstract: A novel chelate resin is produced by causing a 2-hydroxybenzoic acid derivative to react upon a high molecular compound, i.e. a cross-linked polyethyleneimine or a cross-linked polyethyleneimine derivative, thereby linking a 2-hydroxybenzoyl group to the nitrogen atom in the imine chain of the high molecular compound. This chelate resin is capable of collecting, by adsorption and at high efficiency, such a metal as uranium dissolved in a trace amount in water.Type: GrantFiled: February 24, 1986Date of Patent: July 7, 1987Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & IndustryInventors: Masako Sakuragi, Kunihiro Ichimura
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Patent number: 4668720Abstract: This invention relates to flame resistant moulding compounds produced from mixtures of styrene polymers halogenated organic compounds, special polyphosphonic acid amides and optionally conventional additives.Type: GrantFiled: August 6, 1985Date of Patent: May 26, 1987Assignee: Bayer AktiengesellschaftInventors: Hermann Kauth, Hubert Bosshammer, Manfred Schmidt, Dieter Freitag
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Patent number: 4668750Abstract: A moldable composition which comprises a novel random bromostyrene-containing copolymer and a flame-retardant synergist is disclosed. The molded composition exhibits at least a 94V-1 classification when tested in accordance with Underwriters' Laboratories Inc. Test Method UL94.Type: GrantFiled: October 16, 1986Date of Patent: May 26, 1987Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4665129Abstract: Thermoplastic mixtures based on macromolecular compounds and pyrrole polymers contain finely divided pyrrole polymers which are embedded in a matrix of the macromolecular compound. Such mixtures are prepared by a process in which solutions of the macromolecular compounds and compounds from the class consisting of the pyrroles are polymerized with an oxygen-containing oxidizing agent, and the resulting mixture is separated off from the solvent. Moldings obtained from such mixtures are used as electrical conductors or as electrodes.Type: GrantFiled: March 13, 1985Date of Patent: May 12, 1987Assignee: BASF AktiengesellschaftInventors: Herbert Naarmann, Burghard Schmitt, Helmut Barzynski
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Patent number: 4663386Abstract: A moldable composition which comprises a novel random bromostyrene-containing copolymer and a flame-retardant synergist is disclosed. The molded composition exhibits at least a 94V-1 classification when tested in accordance with Underwriters' Laboratories Inc. Test Method UL94.Type: GrantFiled: December 24, 1984Date of Patent: May 5, 1987Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4661535Abstract: A thermoplastic composition, especially for use as an orthopedic splinting or casting material comprises a crosslinked polymeric component and a filler. The crosslinked polymeric component comprises a polycaprolactone, such as poly(epsilon)caprolactone, and a thermoplastic rubber in a ratio of from about 4:1 to about 1.5:1 by weight. Styrene-butadiene-styrene and styrene-isoprene-styrene triblock copolymers are particularly suitable thermoplastic rubbers.Crosslinking may be carried out using an organic peroxide such as benzoyl peroxide. The filler is preferably a mixture of talc and silica.Type: GrantFiled: July 9, 1985Date of Patent: April 28, 1987Assignee: Johnson & JohnsonInventors: Michael J. Borroff, Donald A. Willstead
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Patent number: 4661574Abstract: A moldable composition which comprises a novel random N-(halogenated phenyl)maleimide-containing copolymer and a flame-retardant synergist is disclosed. The molded composition exhibits at least a 94V-1 classification when tested in accordance with Underwriters' Laboratories Inc. Test Method UL94.Type: GrantFiled: April 11, 1986Date of Patent: April 28, 1987Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4640935Abstract: An adduct of a heteroatomic monomer, e.g., gamma-methacryloxypropyl trimethoxysilane and a monoahl, e.g., a monohydroxyl polyalkylene oxide or a polyahl, e.g., a polypropylene glycol, is usefully employed in the preparation of stable copolymer dispersions of the type used in the production of polyurethane foams and polyurethane elastomers.The copolymer dispersion is prepared by addition copolymerization of (1) the adduct with (2) ethylenically unsaturated monomer(s), e.g., styrene or mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of a polyahl, i.e., an active hydrogen polyfunctional compound.Type: GrantFiled: May 9, 1985Date of Patent: February 3, 1987Assignee: The Dow Chemical CompanyInventors: Thomas E. Fisk, Dwight K. Hoffman
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Patent number: 4634731Abstract: A moldable composition which comprises a novel random bromostyrene-containing copolymer, thermoplastic resin, preferably polycarbonate and a flame retardant synergist is disclosed. The molded composition exhibits at least a 94 V-1 classification when tested in accordance with Underwriters Laboratories Inc. Test Method UL94.Type: GrantFiled: December 24, 1984Date of Patent: January 6, 1987Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4625004Abstract: A moldable composition which comprises a novel random bromostyrene-containing copolymer and a flame-retardant synergist is disclosed. The molded composition exhibits at least a 94V-1 classification when tested in accordance with Underwriters' Laboratories Inc. Test Method UL94.Type: GrantFiled: April 11, 1986Date of Patent: November 25, 1986Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4623684Abstract: A composition comprising:(A) a first component selected from the group consisting of:(i) an oil-soluble ethylene backbone polymer having a number average molecular weight in the range of about 500 to about 50,000;(ii) a hydrocarbyl-substituted phenol of the formula(R.sup.*).sub.a --Ar--(OH).sub.b Iwherein R.sup.Type: GrantFiled: October 16, 1985Date of Patent: November 18, 1986Assignee: The Lubrizol CorporationInventors: Casper J. Dorer, Jr., Katsumi Hayashi
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Patent number: 4617353Abstract: A chemical process is provided for forming an electrically conductive polymer blend in which polypyrrole is a minor component. The polypyrrole is formed from a pyrrole monomer, optionally substituted at the 3- and 4-positions. The process comprises forming a solution of a matrix polymer in an anhydrous liquid reaction medium, and, in situ, contacting pyrrole monomer with a polymerization initiator selected from the group consisting of anhydrous halides of iron, cobalt or nickel (Group VIII metal) at a temperature in the range from about -20.degree. C. to below about the boiling point of the solution, so as to form the polypyrrole in situ. The polypyrrole so formed contains a Group VIII metal halide counterion dispersed within the matrix polymer so as to produce a conductive polyblend having a conductivity in the range from about 1 to about 150 ohm.sup.-1 cm.sup.-1 ("S/cm" for brevity), or a semiconductor having a conductivity in the range from about 10.sup.Type: GrantFiled: October 7, 1985Date of Patent: October 14, 1986Assignee: The B. F. Goodrich CompanyInventor: Ronald E. Myers
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Patent number: 4617337Abstract: A composition comprising interacting a blend of a neutralized sulfonated polymer containing from about 4 meq. of metal sulfonate per 100 g. of polymer up to 200 meq. per 100 g. of polymer, said sulfonate polymer being at least 95% neutralized, complexed with a second polymer containing basic nitrogen atoms incorporated, pyridine copolymerized or grafted thereon, said polymer containing basic nitrogen from about 4 meq. up to 500 meq. per 100 g. of polymer, wherein the molar ratio of metal sulfonate groups to that of basic nitrogen atoms varies from about 0.03 to about 30; wherein said polymer containing basic nitrogen groups have the formula: ##STR1## wherein R.sub.1 is an alkyl group having about 1 to about 8 carbon atoms, R.sub.2 is an alkyl group having about 1 to about 18 carbon atoms, x is about 50 to about 99.8 wt. %, and y is about 0.2 to about 50 wt. %.Type: GrantFiled: November 19, 1984Date of Patent: October 14, 1986Assignee: Exxon Research and Engineering Co.Inventors: Robert D. Lundberg, Dennis G. Peiffer, Robert R. Phillips
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Patent number: 4613342Abstract: A composition comprising:(A) a first component selected from the group consisting of:(i) an oil-soluble ethylene backbone polymer having a number average molecular weight in the range of about 500 to about 50,000;(ii) a hydrocarbyl-substituted phenol of the formula(R*).sub.a -Ar-(OH).sub.Type: GrantFiled: October 16, 1985Date of Patent: September 23, 1986Assignee: The Lubrizol CorporationInventors: Casper J. Dorer, Jr., Katsumi Hayashi
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Patent number: 4609711Abstract: A moldable composition which comprises a novel random N-(halogenated phenyl)maleimide-containing copolymer and a flame-retardant synergist is disclosed. The molded composition exhibits at least a 94V-1 classification when tested in accordance with Underwriter's Laboratories Inc. Test Method UL94.Type: GrantFiled: December 24, 1984Date of Patent: September 2, 1986Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4607095Abstract: In one embodiment this invention provides a nonlinear optical substrate which comprises a transparent film of an external field-induced noncentrosymmetric macroscopic orientation of poly[[benzo(1,2-d:5,4-d')bisthiazole-2,6-diyl]-1,4-phenylene] molecules: ##STR1##Type: GrantFiled: March 5, 1985Date of Patent: August 19, 1986Assignee: Celanese CorporationInventor: James E. Kuder
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Patent number: 4607081Abstract: A flame retarding additive comprising an alternating copolymer of a brominated styrene and N-brominated phenylmaleimide, is blended with a matrix resin to produce molding compositions which when molded exhibit improved flame retarding characteristics. The flame retarding additives of this invention also exhibit non-blooming characteristics.Type: GrantFiled: November 5, 1984Date of Patent: August 19, 1986Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4604427Abstract: This invention relates to a chemical method of forming an electrically conductive polymer blend which comprises impregnating a non-porous, swellable or soluble host polymer with:(a) one or more cyclic compounds selected from the group consisting of pyrrole, aniline and substituted analogues of said group members, and(b) at least one chemical oxidant selected from the group consisting of trivalent compounds, tetravalent cerium compounds, hexavalent molybdenum, tungsten or chromium compounds, divalent copper compounds, monovalent silver compounds, nitrites, quinones, peroxides and peracids, said oxidant being dissolved in a solvent capable of swelling or solubilizing said host polymer.Type: GrantFiled: July 19, 1985Date of Patent: August 5, 1986Assignee: W. R. Grace & Co.Inventors: William P. Roberts, Leslie A. Schulz
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Patent number: 4604422Abstract: A moldable composition which comprises a novel random N-(brominated or chlorinated phenyl) maleimide-containing copolymer, a thermoplastic resin, preferably, polycarbonate and a flame retardant synergist is disclosed. The molded composition exhibits at least a 94 V-1 classification when tested in accordance with Underwriters Laboratories Inc. Test Method UL94.Type: GrantFiled: December 24, 1984Date of Patent: August 5, 1986Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4593064Abstract: What is disclosed are a method for the polymerization of methyl methacrylate or a monomer mixture predominantly comprising methyl methacrylate, which comprises polymerizing in the presence of a free radical-forming initiator and in the presence of a sterically hindered amine containing at least one group having the formula ##STR1## wherein R is the same or different alkyl, R' is hydrogen or alkyl, and A is a 2- or 3-membered alkylene chain which may be bound to a further organic group, polymer sheets prepared by such a method, and the use of such sheets in solaria.Type: GrantFiled: May 3, 1985Date of Patent: June 3, 1986Assignee: Rohm GmbHInventor: Ludwig Hosch
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Patent number: 4590241Abstract: Thermoplastic polymer blends containing normally incompatible polymers prepared by incorporating into one polymer repeating units containing pendant cyclic iminoether groups to form a first reactive polymer and another reactive polymer having coreactive groups to form a second reactive polymer which is capable of reacting with said first reactive polymer to form linkages between the polymers wherein said blend is characterized by said first or second reactive polymer being blended or extended with miscible polymer(s) to form a reactive blend thereof.Type: GrantFiled: December 13, 1984Date of Patent: May 20, 1986Assignee: The Dow Chemical CompanyInventor: Ronald W. Hohlfeld
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Patent number: 4582877Abstract: 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: GrantFiled: July 27, 1984Date of Patent: April 15, 1986Assignee: The Dow Chemical CompanyInventors: William J. Fairchok, Bruce P. Thill, Ralph E. Friedrich, Mark J. McKinley
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Patent number: 4575526Abstract: A composition comprising:(A) a first component selected from the group consisting of:(i) an oil-soluble ethylene backbone polymer having a number average molecular weight in the range of about 500 to about 50,000;(ii) a hydrocarbyl-substituted phenol of the formula(R*).sub.a --Ar--(OH).sub.Type: GrantFiled: March 12, 1985Date of Patent: March 11, 1986Assignee: The Lubrizol CorporationInventors: Casper J. Dorer, Jr., Katsumi Hayashi
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Patent number: 4552927Abstract: A conducting organic polymer is disclosed consisting of a polypyrrole or an N-substituted analog of pyrrole and a non-nucleophilic polymeric anion. The polymer is formed by electropolymerizing pyrrole from an electrolyte containing a non-nucleophilic polymeric anion and pyrrole.Type: GrantFiled: September 9, 1983Date of Patent: November 12, 1985Assignee: Rockwell International CorporationInventor: Leslie F. Warren
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Patent number: 4547542Abstract: This invention relates to unique and novel compositions based on chemically combining a sulfonated polymer and an amine terminated polylactone composition. The resulting amine neutralized sulfonated polymer compositions have a variety of uses including those as diverse as adhesive agents, thermoplastic elastomers, additive uses wherein these materials can be utilized to compatibilize two different polymers which are normally incompatible. These compositions can also be blended with fillers and/or oils when the sulfonated polymer is elastomeric. The materials display thermoplastic character.Type: GrantFiled: December 23, 1983Date of Patent: October 15, 1985Assignee: Exxon Research and Engineering Co.Inventors: Robert D. Lundberg, Warren A. Thaler
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Patent number: 4547530Abstract: Miscible blends of poly-2-oxazolines and thermoplastic polymers are disclosed herein. These blends exhibit a single glass transition point indicative of a miscible blend. The blends of this invention are useful as membranes, particularly separation membranes for mixtures of organic compounds or organic compounds and water and a pervaporation process.Type: GrantFiled: November 15, 1983Date of Patent: October 15, 1985Assignee: The Dow Chemical CompanyInventors: Kathleen M. McCreedy, James C. Pawloski, Henno Keskkula, Edward H. Yonkers
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Patent number: 4547548Abstract: Polycondensation compounds containing piperidine and triazine groups, having a mean molecular weight from 1000 to 20,000 and constituted by structural units a and b of the formula ##STR1## are suitable as anti-actinic stabilizers for incorporation in polymeric materials.Type: GrantFiled: July 19, 1984Date of Patent: October 15, 1985Assignee: Ciba-Geigy S.p.A.Inventor: Giuseppe Cantatore
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Patent number: 4546148Abstract: Novel polycondensed compounds containing piperidine groups of polycarbamate structure, of the general formula: ##STR1##Type: GrantFiled: July 19, 1984Date of Patent: October 8, 1985Assignee: Ciba-Geigy S.p.A.Inventor: Giuseppe Cantatore
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Patent number: 4537601Abstract: This invention relates to compositions comprising (1) acrylic-type ester-acrylonitrile copolymers and (2) polymeric polyamines; and to such compositions in combination with organic liquids such as hydrocarbon fluids in which such compositions are effective as antistatic agents.Type: GrantFiled: October 29, 1984Date of Patent: August 27, 1985Assignee: Petrolite CorporationInventor: Michael I. Naiman
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Patent number: 4537834Abstract: Metal, preferably divalent copper, cobalt or nickel, phthalocyanine tetraamines are used as curing agents for epoxides. The resulting copolymers have high thermal and chemical resistance and are homogeneous. They are useful as binders for laminates, e.g. graphite cloth laminate.Type: GrantFiled: April 11, 1984Date of Patent: August 27, 1985Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Bappalige N. Achar, George M. Fohlen, John A. Parker
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Patent number: 4536547Abstract: This invention relates to unique and novel polymer complexes between a metal neutralized sulfonated polymer and a tertiary amine terminated polylactone composition. The resulting polymer complexes have a variety of uses including those as diverse as adhesive agents, thermoplastic elastomers, additive uses wherein these materials can be utilized to compatibilize two different polymers which are normally incompatible. These polymer complexes can also be blended with fillers and/or oils when the sulfonated polymer is elastomeric. The materials display thermoplastic character.Type: GrantFiled: December 28, 1983Date of Patent: August 20, 1985Assignee: Exxon Research and Engineering Co.Inventors: Robert D. Lundberg, Robert R. Phillips
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Patent number: 4532187Abstract: Adhesion of polylefin resins to various substrates is enhanced by the incorporation of a poly-2-oxazoline, e.g., poly(2-ethyl-2-oxazoline) into the polyolefin.Type: GrantFiled: September 14, 1984Date of Patent: July 30, 1985Assignee: The Dow Chemical CompanyInventors: Stephen M. Hoenig, David P. Flores, Sally P. Ginter
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Patent number: 4530969Abstract: Elastomeric compositions vulcanizable with peroxides, consisting of a fluoroelastomer based on vinylidene fluoride and containing small quantities of brominated or iodinated olefine as comonomer, admixed with from 1% to 25% by weight of perfluoropolyether or polycondensation derivatives thereof such as perfluoropolyamides.Type: GrantFiled: July 6, 1983Date of Patent: July 23, 1985Assignee: Montedison S.p.A.Inventors: Giovanni Moggi, Luciano Flabbi, Ezio Strepparola
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Patent number: 4526925Abstract: Vinyl pyridines including vinyl stilbazole materials and vinyl styrylpyridine oligomer materials are disclosed. These vinylpyridines form copolymers with bismaleimides which copolymers have good fire retardancy and decreased brittleness. The cure temperatures of the copolymers are substantially below the cure temperatures of the bismaleimides alone. Reinforced composites made from the cured copolymers are disclosed as well.Type: GrantFiled: November 18, 1983Date of Patent: July 2, 1985Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: John A. Parker, Alvin H. Heimbuch, Ming-Ta S. Hsu, Timothy S. Chen
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Patent number: 4522967Abstract: A water dispersible heat activatable adhesive includes a polyethyloxazoline, a compatible water dispersible adhesive and an anti-blocking agent to prevent premature adhesion. This adhesive is particularly beneficial as a coating for flushable tampon tubes.Type: GrantFiled: June 8, 1984Date of Patent: June 11, 1985Assignee: Kimberly-Clark CorporationInventors: Donald A. Sheldon, Bruce G. Stokes, Robert E. Weber, Edwin G. Greenman
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Patent number: 4511687Abstract: A synthetic resin composition comprises (A) 100 parts by weight of polycaprolactone and (B-1) 10 to 70 parts by weight of a thermoplastic resin and 1 to 30 parts by weight of a tackifier, or (B-2) 10 to 70 parts by weight of a chlorinated polyolefin.Type: GrantFiled: May 28, 1982Date of Patent: April 16, 1985Assignee: Daicel Chemical Industries, Ltd.Inventors: Michio Nakanishi, Naoki Nakashima
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Patent number: 4499245Abstract: 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: GrantFiled: July 15, 1983Date of Patent: February 12, 1985Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Nobuyuki Ikeguchi, Hidenori Kimbara
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Patent number: 4491651Abstract: This invention relates to compositions comprising (1) acrylic-type ester-acrylonitrile copolymers and (2) polymeric polyamines; and to such compositions in combination with organic liquids such as hydrocarbon fluids in which such compositions are effective as antistatic agents.Type: GrantFiled: May 17, 1982Date of Patent: January 1, 1985Assignee: Petrolite CorporationInventor: Michael I. Naiman
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Patent number: 4490494Abstract: Improved dyeability of alpha-monoolefin polymers is obtained by incorporating in the olefin polymer a polymeric dye receptor and a small amount of a carboxylic acid metal salt.Type: GrantFiled: December 15, 1983Date of Patent: December 25, 1984Assignee: Phillips Petroleum CompanyInventor: Robin D. Shropshire