Material Contains Ether Patents (Class 526/209)
-
Patent number: 4168256Abstract: Compounds of the formula ##STR1## wherein n independently at each occurrence and m are integers are excellent lubricants for PVC molding compositions.Type: GrantFiled: January 13, 1978Date of Patent: September 18, 1979Assignee: RCA CorporationInventor: Sarwan K. Khanna
-
Patent number: 4165432Abstract: Compounds containing peroxy linkages connecting similar polyol ester constituents are described. These peroxy di-ester polyols are prepared by the direct esterification of peroxy diacids with polyols, in the presence of a strong mineral acid catalyst. The peroxy di-ester polyol products function as free radical initiators and grafting bases in the graft copolymerization of unsaturated monomers with polyols. These graft copolymers are useful in the formulation of polyurethanes.Type: GrantFiled: October 18, 1977Date of Patent: August 21, 1979Assignee: Olin CorporationInventors: Frank J. Preston, Theodore C. Kraus, Kiran B. Chandalia
-
Patent number: 4161571Abstract: A process for production of the maleic anhydride adduct of a liquid polymer having a maleic anhydride addition amount of 2 to 70% by weight, which comprises reacting a liquid polymer having a molecular weight of 150 to 5,000 and a viscosity of 2 to 50,000 cp at 30.degree. C. in the presence of at least one compound, as a gelation inhibitor, selected from the group consisting of imidazoles, thiazoles, metallic salts of mercaptothiazoles, urea derivatives, naphthylamines, nitrosamines, iron, iron compounds and specific halogen compounds, said liquid polymer being selected from the group consisting of liquid polybutadienes, liquid polyisoprenes and liquid copolymers comprising units of butadiene or isoprene and units of at least one compound selected from the group consisting of other diolefins, olefins and aromatic vinyl compounds.Type: GrantFiled: October 18, 1977Date of Patent: July 17, 1979Assignee: Sumitomo Chemical Company, LimitedInventors: Seimei Yasui, Takao Oshima
-
Patent number: 4157428Abstract: New and useful blends of thermosetting resins with copolymers of certain amounts of ethylene with another monomer copolymerizable therewith to provide solid but flexible polymers, and a third monomer containing epoxy side groups, and optionally carbon monoxide, are provided. These blends result in performance unattainable with the thermosetting resin alone in terms of flexibility, toughness, and adhesion. Such blends may be used, for example, to produce flexible, semirigid or rigid films, coatings, fibers, foams or molded articles.Type: GrantFiled: March 4, 1977Date of Patent: June 5, 1979Assignee: E. I. Du Pont de Nemours and CompanyInventor: Clarence F. Hammer
-
Patent number: 4153770Abstract: Vinyl polymers are prepared by emulsion polymerization using as an emulsifier a nonionic surfactant which has been prepared by adding 30 to 100 mols of alkylene oxide to one mol of a polyhydric alcohol having from 3 to 10 functional hydroxyl groups to form a first reaction product and then esterifying said first reaction product to introduce therein one to 2 mols of an acyl group having from 6 to 22 carbon atoms.Type: GrantFiled: September 15, 1977Date of Patent: May 8, 1979Assignee: Kao Soap Co., Ltd.Inventors: Yuzuru Ogata, Takeshi Kawaguchi, Ikuya Kinoshita, Hirokazu Nakayama, Toshinao Ukena
-
Patent number: 4151339Abstract: A process for polymerizing vinyl chloride and for copolymerizing vinyl chloride and up to 30 percent by weight of comonomers in aqueous suspension under heat and pressure in the presence of a mixture of an acyl sulfonyl peroxide and a perester of the formula ##STR1## wherein R.sub.3, R.sub.4, and R.sub.5 are the same or different alkyl groups of from 1 to about 10 carbon atoms provided not more than one of R.sub.3, R.sub.4, and R.sub.5 is methyl, and R is selected from 2,2-dimethyl propyl and straight chain alkyl of 1-5 carbon atoms.Type: GrantFiled: November 1, 1974Date of Patent: April 24, 1979Assignee: Argus Chemical CorporationInventors: Ronald L. Friedman, Roger N. Lewis
-
Patent number: 4147850Abstract: By conducting solution polymerization in the presence of minor amounts of water, higher molecular weight polymers are obtained.Type: GrantFiled: May 18, 1977Date of Patent: April 3, 1979Assignee: Rohm and Haas CompanyInventors: Thomas W. Hutton, Pamela J. Rogers
-
Patent number: 4140667Abstract: Graft copolymers of vinyl monomers and unsaturated polyols are described. These copolymers are prepared by the polymerization of an ethylenically unsaturated monomer, or a mixture of such monomers, in a polyol comprising an alkenyl aryl polyol. The alkenyl aryl constituents render the polyols compatible for graft copolymerization with the vinyl monomers. The graft copolymers are useful in polyurethane formulations.Type: GrantFiled: March 31, 1977Date of Patent: February 20, 1979Assignee: Olin CorporationInventors: Frank J. Preston, Kiran B. Chandalia
-
Patent number: 4134815Abstract: A process of manufacturing an amphoteric composite resin which process comprises first polymerizing a dispersion comprising two liquid phases wherein the first liquid phase comprises at least one monomer containing a basic group or a precursor or derivative thereof and a crosslinking agent, and the second liquid phase comprises at least one monomer containing an acidic group or a precursor or derivative thereof and a crosslinking agent, and wherein the monomers are not of opposite charge, the two liquid phases are substantially immiscible and partitioning of the monomers from one liquid phase to the other is minimal, to form a composite polymeric material; and second treating the composite polymeric material to convert any acidic group precursor or derivative and any basic group precursor or derivative to the free acid and free base respectively to form an amphoteric composite resin.Type: GrantFiled: May 20, 1977Date of Patent: January 16, 1979Assignees: ICI Australia Limited, Commonwealth Scientific and Industrial Research OrganizationInventors: Mervyn B. Jackson, Brian A. Bolto
-
Patent number: 4129704Abstract: A diperoxyester mixture composition is provided comprising at least two symmetrical diperoxyesters and at least one unsymmetrical diperoxyester, a method of preparing such a composition, and the use of such a composition in vinyl monomer polymerization and in curing unsaturated polyester resin.Type: GrantFiled: January 25, 1978Date of Patent: December 12, 1978Assignee: Pennwalt CorporationInventor: Jose Sanchez
-
Patent number: 4125505Abstract: Poly (oxypropylene-oxyethylene) polyols containing predetermined amounts of both internal and cap ethylene oxide are employed to form polymer/polyols which exhibit enhanced compatibility for low molcular weight chain extenders such as, for example, ethylene glycol and butanediol. Polyurethane elastomers having satisfactory modulus characteristics are prepared from the polymer/polyol-chain extender mixture, and the resulting elastomers possess unexpected hydrolytic stability.Type: GrantFiled: July 6, 1976Date of Patent: November 14, 1978Assignee: Union Carbide CorporationInventors: Frank E. Critchfield, Richard M. Gerkin, Leslie E. Hawker
-
Patent number: 4122056Abstract: Finely-divided dispersed solids are prepared by the emulsion polymerization in the presence of a free radical catalyst of a major amount of an ethylenically unsaturated monomer or mixture of monomers and a minor amount of a hydroxy-terminated organic compound having from one to eight hydroxyl groups, an oxyethylene content of from about 15 to 80 weight percent, a hydroxyl equivalent weight of from 250 to 10,000 and containing a polymerizable carbon-to-carbon double bond. The resulting polymeric solids are particularly useful in the preparation of reinforced polymer compositions.Type: GrantFiled: February 23, 1978Date of Patent: October 24, 1978Assignee: BASF Wyandotte CorporationInventors: Gerhard Gustav Ramlow, Louis Celeste Pizzini, John Thomas Patton, Jr., John Richard Murphy, John Eugene Davis
-
Patent number: 4113931Abstract: A process for the continuous production of indene resins comprising the steps of continuously pre-heating an indene-containing hydrocarbon mixture, continuously adding a boron trifluoride-adduct catalyst and the pre-heated indene-containing mixture to a reaction tube, continuously isothermally reacting the indene-containing mixture with the catalyst at the temperature of the pre-heated mixture to form an indene-containing resin, continuously decomposing the catalyst, and continuously separating the indene-containing resin from the decomposed catalyst and unreacted substances.Type: GrantFiled: July 12, 1976Date of Patent: September 12, 1978Assignee: Rutgerswerke AktiengesellschaftInventors: Hans Spengler, Gunter Bucksch, Manfred Morgenstern
-
Patent number: 4100141Abstract: Stabilized, curable compositions formed from known free radical-polymerizable monomers (e.g., acrylates, stryene, etc.), and free radical initiators (e.g., peroxides, hydroperoxides, ultraviolet-sensitive compounds) by dissolving therein compounds containing the combination of allyl, lower alkoxyl and hydroxyl groups. All the groups may be present in one molecule, or the allyl group may occur in a separate molecule. Concentration of each compound may be in the range of about 0.01 to about 5 percent by weight of the total composition.Type: GrantFiled: July 2, 1976Date of Patent: July 11, 1978Assignee: Loctite (Ireland) LimitedInventor: Denis Joseph O'Sullivan
-
Patent number: 4100339Abstract: The invention relates to a process for the production of chemically uniform copolymers of acrylonitrile and vinyl chloride and, optionally, other copolymerizable ethylenically unsaturated compounds, by the method of emulsion polymerization in the presence of an anion active emulsifier and a non-ionic emulsifier.Type: GrantFiled: February 3, 1977Date of Patent: July 11, 1978Assignee: Bayer AktiengesellschaftInventors: Joachim Konig, Carlhans Suling, Gunther Boehmke
-
Patent number: 4098771Abstract: Vinylene carbonate may be polymerized in bulk, in solution or in dispersion by means of free radical forming initiators. Suitable comonomers are vinyl compounds. The polymerization is carried out generally at a temperature of 40 to 170.degree. C. The dispersing agents used in the dispersion polymerization are organic compounds which are liquid under normal conditions and which do not dissolve vinylene carbonate. Homo- and copolymers of vinylene carbonate may be used as starting material for the preparation of homo- and copolymers of vinylene glycol.Type: GrantFiled: December 15, 1976Date of Patent: July 4, 1978Assignee: Hoechst AktiengesellschaftInventors: Heinrich Huemer, Karlheinz Burg
-
Patent number: 4095019Abstract: Ethylenically unsaturated monomers susceptible to free radical polymerization may be polymerized by contacting the monomers with an initiating compound having the formula: ##STR1## wherein R.sub.1 is a substituted or unsubstituted aryl radical.Type: GrantFiled: April 5, 1976Date of Patent: June 13, 1978Assignee: ICI Americas Inc.Inventors: Kenneth H. Markiewitz, Alfred J. Restaino
-
Patent number: 4092470Abstract: Stable, pumpable, highly concentrated aqueous suspensions of organic peroxides containing (a) nonionic emulsifiers having a maximum HLB value of 12.5 and (b) nonionic emulsifiers having a minimum HLB value of 12.5 or anionic emulsifiers.Type: GrantFiled: February 28, 1977Date of Patent: May 30, 1978Assignee: Akzona IncorporatedInventors: Hendrik Harm Jannes Oosterwijk, Reinder Torenbeek
-
Patent number: 4081418Abstract: In the emulsion polymerization of polymers which comprise monomers selected from acrylic acid, methacrylic acid, alkyl esters of those acids and which may also comprise other compatible vinyl monomers such as styrene, vinyl acetate, N-methylolacrylamide, acrylonitrile, itaconic acid and the like, the emulsifier for the emulsion polymerization is a surface-active agent having the formula ##STR1## wherein ##STR2## is the acyl radical of a fatty acid having 7 to 21 carbon atoms and M is selected from ammonium, the alkali metals, and certain alkaline earth metals, and x is 1 to 3.Type: GrantFiled: May 10, 1976Date of Patent: March 28, 1978Assignee: American Cyanamid CompanyInventors: Girish Chandra Barua, Herbert Burkhard
-
Patent number: 4078132Abstract: Low softening point resins are prepared by a process which comprises polymerising using a Friedel Crafts catalyst:(1) a petroleum resin feed comprising C.sub.5 olefins and C.sub.5 diolefins or a mixture of C.sub.5 and C.sub.6 olefins and diolefins, said feed being obtained from the cracking of petroleum feedstock and being subjected to thermal soaking at a temperature of 100.degree. C to 150.degree. C, and(2) a branched chain reactive aliphatic olefin or an oxygenated transfer agent.Preferred additives are diisobutene or U.O.P. olefins. The polymerization may take place in the presence of a C.sub.8 to C.sub.10 unsaturated aromatic compound.Type: GrantFiled: August 9, 1976Date of Patent: March 7, 1978Inventor: Andre Lepert
-
Patent number: 4078134Abstract: Polymers of tetrafluoroethylene are produced by suspension polymerization in the presence of small amounts of definite perfluorinated ethers. The products obtained have improved processing properties.Type: GrantFiled: May 20, 1976Date of Patent: March 7, 1978Assignee: Hoechst AktiengesellschaftInventors: Jurgen Kuhls, Alfred Steininger, Herbert Fitz
-
Patent number: 4078135Abstract: Polymers of tetrafluoroethylene are produced by suspension polymerization in the presence of small amounts of definite perfluorinated ethers. The products obtained have improved processing properties.Type: GrantFiled: May 20, 1976Date of Patent: March 7, 1978Assignee: Hoechst AktiengesellschaftInventors: Reinhard Sulzbach, Jurgen Kuhls, Herbert Fitz
-
Patent number: 4076921Abstract: A starting monomer mixture containing a minor amount of a cross linking agent is precipitation polymerized in a diluent/precipitant which is an unlimited solvent for the starting monomers but is neither a solvent nor a substantial swelling agent for the resultant polymer. The resultant product falling from the polymerization contains soluble and insoluble hydrophilic polymers and copolymers.Type: GrantFiled: October 13, 1972Date of Patent: February 28, 1978Assignee: Ceskoslovenska akademie vedInventors: Miroslav Stol, Vladimir Stoy, Zdenek Tuzar
-
Patent number: 4076926Abstract: Unsaturated compounds, particularly C.sub.4 to C.sub.20 mono- and di-olefines are polymerized by a process in which the catalyst used is an aluminium trihalide such as aluminium chloride in conjunction with an alcohol or ether.Type: GrantFiled: May 10, 1976Date of Patent: February 28, 1978Assignee: Imperial Chemical Industries LimitedInventors: David Lee Milner, Ian Stanley Ripley
-
Patent number: 4075183Abstract: In the production of a water-soluble, cationic high polymer of (A) at least one of acrylamide and methacrylamide and (B) at least one of ammonium type monomers of either one of the formulas: ##STR1## wherein R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 and R.sub.3 are each a lower alkyl group, R.sub.4 is a hydrogen atom, a lower alkyl group, an aryl group, a hydroxy(lower)alkyl group, a benzyl group or a group of the formula: --CH.sub.2 COO(CH.sub.2).sub.m CH.sub.3 (m being an integer of 0 or 1), R.sub.5.sup.- is a group of either one of the formulas: --(CH.sub.2).sub.2 COO.sup.- and -(CH.sub.2).sub.3 SO.sub.3.sup.Type: GrantFiled: December 18, 1975Date of Patent: February 21, 1978Assignee: Sumitomo Chemical Company, LimitedInventors: Shigenao Kawakami, Tatsumi Shibata, Shin-ichi Isaoka, Tutomu Shintani
-
Patent number: 4074004Abstract: Normally tacky and pressure-sensitive adhesive tapes, labels, etc. which, when adhered to dry fibrous webs, remain firmly attached when the web and adhesive are thereafter exposed to moist conditions. These performance characteristics, which are not found when conventional pressure-sensitive adhesives are used, result from employing acrylate-based copolymer adhesives made from specific monomers and having inherent viscosities related to the monomers employed.Type: GrantFiled: July 2, 1976Date of Patent: February 14, 1978Assignee: Minnesota Mining and Manufacturing CompanyInventors: George F. Bateson, Francis W. Brown, Steven M. Heilmann
-
Patent number: 4071677Abstract: Asymmetrical organic diacyl peroxide polymerization initiators having enhanced initiator efficiency and characterized by the presence of an acyclic acyl group of four or more carbon atoms having bromo or halo substitution at the alpha carbon atom, the other acyl group being different and heterosubstituted. However, when the alpha-halosubstituted acyl group is branched chain the other acyl group may be hydrocarbon.Type: GrantFiled: March 4, 1977Date of Patent: January 31, 1978Assignee: Argus Chemical CorporationInventor: Donald W. Wood
-
Patent number: 4071671Abstract: Copolymers of glycidyl methacrylate and allyl glycidyl ether having pendant epoxy groups, having an inherent viscosity of at least about 0.25, preferably within the range of about 0.25 to about 0.38, and an epoxy equivalent of at least about 0.65 epoxide equivalent per 100g. of polymer are provided which upon admixture with a radiation-sensitive aryldiazonium salt provide compositions which exhibit improved sensitivity, curing rates and other properties. Articles for recording and storing information from a laser source and other articles such as microfilm are derived from such compositions by subjecting a coated substrate to an energy source of sufficient intensity to decompose the radiation-sensitive catalyst and thus effect polymerization via the epoxy groups of the copolymer.Type: GrantFiled: June 18, 1976Date of Patent: January 31, 1978Assignee: American Can CompanyInventors: Sheldon I. Schlesinger, Veronica Cochran
-
Patent number: 4071579Abstract: Novel peresters having the formula ##STR1## wherein R is hydrogen or an alkyl group or an alkoxy group having 1-6 C atoms and a method for making them are provided. The novel peresters may be used to advantage in the polymerization or copolymerization of ethylenically unsaturated compounds.Type: GrantFiled: September 7, 1976Date of Patent: January 31, 1978Assignee: Akzona IncorporatedInventor: Hendrik Harm Jannes Oosterwijk
-
Patent number: 4069377Abstract: Secondary-aliphatic .alpha.-substituted azoalkanes, such as 1-isopropylazo-1-azidocyclohexane, and processes using such azoalkanes as polymerization initiators for vinyl monomers and as curing agents for resins.Type: GrantFiled: June 14, 1976Date of Patent: January 17, 1978Assignee: Pennwalt CorporationInventors: Ronald Edward MacLeay, Chester Stephen Sheppard
-
Patent number: 4069378Abstract: A self-emulsifying anaerobic-curing composition is disclosed. The composition is rendered self-emulsifying by incorporating certain anionic and/or nonionic surfactants in a concentration range of about 0.25 to about 10.0 percent. The preferred anionics comprise the petroleum sulfonates and the sodium alkyl or alkylaryl sulfonates. The preferred nonionics comprise the ethoxylated alkyl alcohols, the ethoxylated alkyl phenols, and the polyoxyethylene/polyoxypropylene glycols. Any anaerobic monomer or monomer mixture in which the surfactant is soluble and compatible with the cure system may be used.These self-emulsifiable compositions have the advantage of being readily removed from surfaces by washing with water, which makes them especially useful in impregnation processes where uncured resin must be removed from areas which are difficult to wash, such as small, blind holes.Type: GrantFiled: June 17, 1976Date of Patent: January 17, 1978Assignee: Loctite CorporationInventor: JoAnn DeMarco
-
Patent number: 4065430Abstract: A functional group containing polymer, particularly useful for producing relief images, printing plates, and photographic duplications, containing 1 to 90 mol percent of the monomer unit represented by general formula (I) ##STR1## wherein R.sub.1 is a hydrogen atom or a methyl group; R.sub.2 is a divalent group containing 2 to 10 carbon atoms; R.sub.3 is a hydrogen atom, a halogen atom (such as chlorine, bromine) a methoxy group, a nitro group or a methyl group; R.sub.4 is a hydrogen atom, a cyano group or a carbamoyl group; X and Y each represents --O--, --S--, or --NR.sub.5 --; and R.sub.5 represents a hydrogen atom, a methyl group or an ethyl group, a method of preparing the above described functional group containing polymer and a composition containing the functional group containing polymer.Type: GrantFiled: October 9, 1975Date of Patent: December 27, 1977Assignee: Fuji Photo Film Co., Ltd.Inventor: Masato Satomura
-
Patent number: 4063012Abstract: New aliphatic azo compounds containing an .alpha.-hydroperoxy group and the alkali metal and alkaline earth metal salts thereof as represented by the general structure ##STR1## processes for preparing I where M is H and R is t-aliphatic by reacting t-aliphatic azo compounds having an .alpha.-halo substituent with about an equimolar amount of sodium or hydrogen peroxide; processes for converting I where M is H to its alkali or alkaline earth metal salt by reaction with aqueous solutions of the corresponding base or with calcium or sodium hydride; and the use of these novel compounds as polymerization initiators for vinyl monomers and as curing agents for resins. For example, 2-t-butylazo-2-hydroperoxy-4-methylpentane is prepared from sodium peroxide and 2-t-butylazo-2-chloro-4-methylpentane and used to polymerize vinyl chloride and to cure unsaturated polyester resin.Type: GrantFiled: April 19, 1976Date of Patent: December 13, 1977Assignee: Pennwalt CorporationInventors: Ronald Edward MacLeay, Chester Stephen Sheppard
-
Patent number: 4058656Abstract: Initiating compounds having the following formula: ##STR1## wherein R.sub.1 in an substituted or unsubstituted aryl radical and wherein R.sub.2 is hydrogen or alkyl are useful in initiating polymerization reaction of ethylenically unsaturated monomers susceptible to free radical polymerization.Type: GrantFiled: April 5, 1976Date of Patent: November 15, 1977Assignee: ICI United States Inc.Inventors: Kenneth H. Markiewitz, Alfred J. Restaino
-
Patent number: 4056670Abstract: Anaerobic curing compositions useful as anaerobic adhesives and sealants are described. These compositions comprise mixtures of polymerizable acrylic and substituted acrylic monomers together with a catalyst comprising an alpha-amino sulfone compound.Type: GrantFiled: November 3, 1975Date of Patent: November 1, 1977Assignee: National Starch and Chemical CorporationInventor: Martin M. Skoultchi
-
Patent number: 4054480Abstract: Anaerobic curing compositions useful as anaerobic adhesives and sealants are described. These compositions comprise mixtures of polymerizable acrylic and substituted acrylic monomers together with a catalyst comprising an alpha-hydroxy sulfone compound. As an alternate embodiment of the invention, certain organic peroxides may be added to the composition to further prolong the shelf life thereof and to increase the shear strength of the resulting adhesive bond.Type: GrantFiled: May 22, 1975Date of Patent: October 18, 1977Assignee: National Starch and Chemical CorporationInventors: Martin M. Skoultchi, Dilip K. Ray-Chaudhuri, William J. Catena
-
Patent number: 4048421Abstract: A method for the anionic polymerization of unsaturated monomers involves effecting reaction in the presence of an organic derivative of a metal alumina hydride in an amount ranging from 0.01 to 5.0 mol percent based upon the amount of unsaturated monomer.Type: GrantFiled: October 21, 1974Date of Patent: September 13, 1977Assignee: Vysoka skola chemicko technologickaInventors: Jaroslav Kralicek, Vladimir Kubanek, Jaroslava Kondelikova, Bohuslav Casensky, Jiri Machacek
-
Patent number: 4048423Abstract: Unsymmetrical azo compounds (R").sub.3 C--N.dbd.N--R' where (R").sub.3 C-- is tert.-aliphatic and R' is --C(R.sub.1)(R.sub.2)(Z) or ##STR1## e.g., 1-t-butylazo-1-chlorocyclohexane, their use as vinyl polymerization initiators and polyester resin curing agents, and methods for preparing same from t-aliphatic hydrazones and t-aliphatic .alpha.-halo-substituted azoalkanes.Type: GrantFiled: March 29, 1976Date of Patent: September 13, 1977Assignee: Pennwalt CorporationInventors: Ronald Edward MacLeay, Chester Stephen Sheppard
-
Patent number: 4039475Abstract: Stable, pumpable, highly concentrated aqueous suspensions of organic peroxides containing (a) nonionic emulsifiers having a maximum HLB value of 12.5 and (b) nonionic emulsifiers having a minimum HLB value of 12.5 or anionic emulsifiers.Type: GrantFiled: March 15, 1976Date of Patent: August 2, 1977Assignee: Akzona IncorporatedInventors: Hendrik Harm Jannes Oosterwijk, Reinder Torenbeek
-
Patent number: 4035347Abstract: A method for preparing substantially dry homopolymers and copolymers which comprises forming a polymeric latex or water-in-oil emulsion and partially inverting said latex by regulated contact time with water in the time span 0.5 - 10.0 seconds and preferably less than 1 second. A preferred operation is carried out in a static mixer where the contact time for inversion is regulated by the diameter or length of a cylindrical tube containing static baffles.Type: GrantFiled: March 2, 1976Date of Patent: July 12, 1977Assignee: Nalco Chemical CompanyInventors: David B. Korzenski, Barney Vallino, Jr., Wayne E. Zarnecki
-
Patent number: 4031299Abstract: A polyvinyl chloride extender resin having an average particle size of between about 5 microns and about 50 microns can be formed by using conventional suspension polymerization procedures if a prehomogenized solution comprising an effective amount of polyallyl compound and a low molecular weight propylene polymer are incorporated in the suspension polymerization medium to control the rheological properties of the resin.Type: GrantFiled: April 11, 1975Date of Patent: June 21, 1977Assignee: Stauffer Chemical CompanyInventor: Chung H. Wei
-
Patent number: 4027082Abstract: There is disclosed a process for producing carboxyl-containing hydrophilic polymeric fillers comprising polymerizing at least one carboxyl-containing monomer with a cross-linking monomer in an oxygen bearing organic solvent for the monomers and in the presence of a free radical catalyst to form a polymeric precipitate and treating the thus formed polymeric precipitate with a solution containing sodium, potassium or ammonium ions thereby transforming the same into the corresponding polymeric salt, said solvent being a non-solvent for the polymer.Type: GrantFiled: July 21, 1975Date of Patent: May 31, 1977Assignee: Ceskoslovenska akademie vedInventors: Ivana Gavrilova, Slavko Hudecek
-
Patent number: 4016187Abstract: Novel peresters having the formula ##STR1## wherein R is hydrogen or an alkyl group or an alkoxy group having 1-6 C atoms and a method for making them are provided. The novel peresters may be used to advantage in the polymerization or copolymerization of ethylenically unsaturated compounds.Type: GrantFiled: June 30, 1975Date of Patent: April 5, 1977Assignee: Akzona IncorporatedInventor: Hendrik Harm Jannes Oosterwijk
-
Patent number: 4011381Abstract: A process for preparing a thermosetting powder coating composition comprising the steps of copolymerizing 5 to 25 wt.% of at least one of glycidyl acrylate and glycidyl methacrylate with 95 to 75 wt.% of an ethylenically unsaturated compound in a solvent having a boiling point of up to 170.degree. C to obtain a solution of copolymer, the copolymer having a number average molecular weight of 2,000 to 30,000 and a melt viscosity of 100 to 500 poises at 160.degree. C, uniformly dispersing a pigment into the copolymer solution, removing the solvent from the resulting mixture at a temperature of 170.degree. to 220.degree. C and reduced pressure, thereafter admixing a di- or tri-carboxylic acid cross-linking agent with the mixture with heating at a temperature of up to 120.degree. C, and pulverizing the solid mixture obtained.Type: GrantFiled: May 28, 1975Date of Patent: March 8, 1977Assignee: Kansai Paint Company, Ltd.Inventors: Naozumi Iwasawa, Nobuo Sugiyama, Ichiro Yoshihara, Tadashi Watanabe, Taizo Kondo
-
Patent number: 4001194Abstract: Metallocene that is polymerizable by free radical catalysis and has metal nucleus in a state of oxidation below its maximum can be polymerized without oxidation of such nucleus by forming a reaction mixture containing said metallocene and the reducing agent of a redox catalyst combination, then initiating and maintaining polymerization of said metallocene with the gradual addition of the oxidizing agent of said combination to said reaction mixture.Type: GrantFiled: November 11, 1974Date of Patent: January 4, 1977Assignee: SCM CorporationInventor: F. Louis Floyd
-
Patent number: 3985718Abstract: Four component polymerization initiators for olefinic monomers comprise (1) an oxidizing agent such as hydrogen peroxide, a persulphate, a permanganate, a chlorate, a perchlorate, a bichromate, a bromate, a ceric salt, an oxazirane, an organic peroxide or an organic hydroperoxide, (2) a chelate compound of a metal such as titanium, iron, vanadium, aluminum, tin, manganese, chromium, cobalt, copper, zinc or bismuth in which the metal is not fully coordinated, (3) an electron donor in amount at most equal to that required to complex completely the said metal of the chelate compound, the said electron donor being for example an amine, a monoalcohol, an ether, an aldehyde, a ketone, an imine, an oxime, an amide, a sulphonamide, or a phosphonamide, and (4) a chelate complex or salt which is different from the chelate compound (2) and in which the metal may be for example, copper, iron, magnesium, manganese, chromium, vanadium or tin, the degree of coordination of the said metal being different from that of the metType: GrantFiled: August 5, 1974Date of Patent: October 12, 1976Assignee: Rhone-Poulenc S.A.Inventors: Henri Chabert, Robert Chapurlat, Claude Gigou, Michel Ruaud
-
Patent number: 3976626Abstract: Binders for coating compositions are produced by an elevated temperature, aqueous phase polymerization, in the presence of an anionic emulsifier, polyethylene oxide and peroxydisulfate, of a monomer mixture consisting by weight of 10-85% vinyl aromatic component, which may be partially replaced by 0-20% of acrylonitrile, 15-90% by weight of diolefin component and up to 6% each of .beta.-unsaturated carboxylic acid or an amide thereof or a mixture thereof, characterized by employing a starting reaction mixture containing 0.05-0.5% of an anionic sulfonate or sulfate emulsifier; 0.5-5% of a polyethylene oxide having an average molecular weight of between 300 and 4,000; and 0.5-2% of a water-soluble peroxydisulfate; and, after a monomer conversion of between 15 and 35% by weight, adding to the reaction mixture another 0.2-1.5% of an anionic sulfonate or sulfate emulsifier.Type: GrantFiled: March 28, 1975Date of Patent: August 24, 1976Assignee: Chemische Werke Huls AktiengesellschaftInventor: Ulrich Turck
-
Patent number: 3975338Abstract: A vinyl chloride polymer for providing a vinyl chloride paste which has a good thermal stability, a stability to sol viscosity and an excellent air release capability in the natural state or in a short period of time under a moderately low pressure is produced by using, in the production thereof, as an emulsifying agent, the alkali metal salts and/or ammonium salts of a mixture of a major amount of olefin alkyl sulfonates and a minor amount of hydroxyalkyl sulfonates (hereinafter olefin alkyl/hydroxyalkyl sulfonates) having from about 8 to 20 carbon atoms, in the polymerization thereof or in the preparation of a vinyl chloride paste from the polymerized product.Type: GrantFiled: December 21, 1973Date of Patent: August 17, 1976Assignee: Kanegafuchi Chemical Industries Co., Ltd.Inventors: Katsuya Tsubota, Shigeru Motani, Tatsuo Hasue, Yasuhiro Nijima
-
Patent number: 3974119Abstract: Stable emulsions of terpolymer particles are formed by polymerizing ethylene, a styrenic monomer such as styrene, and an alkyl vinyl monomer having from about 3 up to about 24 carbon atoms in an aqueous medium in the presence of a water soluble persulfate initiator, and a nonionic and/or anionic emulsifier. The resulting novel stable emulsions contain particles of terpolymer of the three monomers which will provide film coatings of increased flexibility and toughness. Furthermore, the emulsions have excellent compatibility when blended with conventional polish formulations.Type: GrantFiled: January 20, 1975Date of Patent: August 10, 1976Assignee: Cosden Technology, Inc.Inventors: Glenn Edward Teer, Jerry Gene Higgins, George D. Warren
-
Patent number: 3970609Abstract: A method for preparation of polymethacrylate esters by the anionic polymerization characterized by application of new initiation systems based on esters of .alpha.-lithio carboxylic acids having 2-30 carbon atoms in a straight or branched chain and 1-6 ester groups in a molecule, or on their adducts or complexes with lithium alkoxides having 3-16 carbon atoms in a straight or branched chain. The polymerization is carried out at temperatures -70.degree. to +50.degree. C, preferably at +20.degree. C, with the monomer - to - initiator ratio equal 10 to 1500. The polymers which have new mechanical and solution properties due to the new preparation method are suitable as additives into mineral oils increasing their viscosity indexes and suppressing their solidification temperature, as a cement in medical practice, and the like.Type: GrantFiled: May 6, 1974Date of Patent: July 20, 1976Assignee: Ceskoslovenska akademie vedInventors: Lubomir Lochman, Miroslava Rodova, Jiri Trekoval