Material Contains An Aluminum Atom Patents (Class 528/238)
-
Patent number: 10239984Abstract: The invention relates to a production process for polyamines through condensation of aromatic amines with formaldehyde employing at least one solid zeolite catalyst partially or fully ion-exchanged to the protonic form which has been A) alkaline-treated, wherein the alkaline treatment is in case of BEA zeolites carried out in the presence of a pore-directing agent and in case of zeolites other than BEA zeolites in the presence or absence of a pore-directing agent, or B) acid-treated without any alkaline treatment preceding or following said acid treatment, wherein the acid treatment is effected with an organic acid with chelating function.Type: GrantFiled: July 2, 2015Date of Patent: March 26, 2019Assignee: COVESTRO DEUTSCHLAND AGInventors: Jürgen Arras, Stefan Wershofen, Javier Pérez-Ramirez, Tobias Caesar Keller
-
Patent number: 8586289Abstract: The aromatic hydrocarbon resin can be used as a coating material and a resist resin for a semiconductor, and has a high carbon concentration and a low oxygen concentration. A composition for forming an underlayer film for lithography that has excellent etching resistance as an underlayer film for a multilayer resist process, an underlayer film formed with the same, and a pattern forming method using the same are disclosed. An aromatic hydrocarbon is reacted with an aromatic aldehyde in the presence of an acidic catalyst, thereby providing an aromatic hydrocarbon resin that has a high carbon concentration of from 90 to 99.9% by mass and a low oxygen concentration of from 0 to 5% by mass. A composition for forming an underlayer film for lithography contains the resin and an organic solvent, an underlayer film is formed with the same, and a pattern forming method uses the same.Type: GrantFiled: September 14, 2010Date of Patent: November 19, 2013Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Ryuji Ideno, Seiji Kita, Masashi Ogiwara, Gou Higashihara
-
Patent number: 8575299Abstract: Alcohols are catalytically oxidized to aldehydes, in particular to benzaldehyde and diformylfuran, which are useful as intermediates for a multiplicity of purposes. The invention also relates to the polymerization of the dialdehyde and to the decarbonylation of the dialdehyde to furan.Type: GrantFiled: July 25, 2013Date of Patent: November 5, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Vladimir Grushin, Leo Ernest Manzer, Walter Partenheimer
-
Publication number: 20120171611Abstract: The aromatic hydrocarbon resin can be used as a coating material and a resist resin for a semiconductor, and has a high carbon concentration and a low oxygen concentration. A composition for forming an underlayer film for lithography that has excellent etching resistance as an underlayer film for a multilayer resist process, an underlayer film formed with the same, and a pattern forming method using the same are disclosed. An aromatic hydrocarbon is reacted with an aromatic aldehyde in the presence of an acidic catalyst, thereby providing an aromatic hydrocarbon resin that has a high carbon concentration of from 90 to 99.9% by mass and a low oxygen concentration of from 0 to 5% by mass. A composition for forming an underlayer film for lithography contains the resin and an organic solvent, an underlayer film is formed with the same, and a pattern forming method uses the same.Type: ApplicationFiled: March 24, 2011Publication date: July 5, 2012Inventors: Ryuji Ideno, Seiji Kita, Masashi Ogiwara, Gou Higashihara
-
Publication number: 20120123085Abstract: Alcohols are catalytically oxidized to aldehydes, in particular to benzaldehyde and diformylfuran, which are useful as intermediates for a multiplicity of purposes. The invention also relates to the polymerization of the dialdehyde and to the decarbonylation of the dialdehyde to furan.Type: ApplicationFiled: January 25, 2012Publication date: May 17, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Vladimir Grushin, Walter Partenheimer, Leo E. Manzer
-
Patent number: 7262237Abstract: Curable urea formaldehyde binder compositions are provided which are useful in coated abrasive and wood engineering applications, in a time released fashion. The time released curable binder compositions include a urea formaldehyde resin and an aryl phosphite in varying concentrations. The curable binder compositions of the present invention provide desirable working times and faster curing times tinder ambient or near ambient conditions.Type: GrantFiled: June 24, 2004Date of Patent: August 28, 2007Assignee: Hexion Specialty Chemicals, Inc.Inventor: Jimmy Pingao Chen
-
Patent number: 5929195Abstract: A branched or crosslinked polyacetal resin is excellent in blow moldability, has impact resistances such as plane impact resistance, and the smoothness of the inner surfaces of moldings produced therefrom, and is suitable for molding, particularly blow molding. It can be produced by the bulk polymerization of (A) trioxane with (B) a cyclic ether and/or cyclic formal and (C) a polyfunctional glycidyl ether compound in the presence of (D) a cationic polymerization catalyst, a mixture prepared by mixing the cyclic ether and/or cyclic formal (B) with the polyfunctional glycidyl ether compound (C) and the cationic polymerization catalyst (D) is added to trioxane (A) to conduct the polymerization.Type: GrantFiled: July 14, 1998Date of Patent: July 27, 1999Assignee: Polyplastics Co., Ltd.Inventors: Kuniaki Kawaguchi, Kaoru Yamamoto, Hajime Serizawa
-
Patent number: 5770678Abstract: A process for polymerizing oxiranes, oxetanes, oxepanes, dioxolanes, trioxanes, and tetrahydrofurans to their respective polymers by contacting them with a selected metal compound is disclosed; and also a process for depolymerizing polytetrahydrofurans to monomeric tetrahydrofurans by contacting the polymer with a selected metal compound at a temperature of about 100.degree. C. to about 250.degree. C. The catalysts may be in solution or part of a heterogeneous solid, and selected organic compounds are used as accelerators in the polymerizations. The polymeric products, some of which are novel, may be used as polyether monomers for further polymerization, as by reaction with isocyanates to produce polyurethanes, and other useful polymers. Some of the polymeric products are relatively high in molecular weight and are suitable for direct use, for instance as spandex fibers.Type: GrantFiled: December 9, 1996Date of Patent: June 23, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Neville Everton Drysdale, Richard Edmund Bockrath, Norman Herron, Joel David Citron
-
Patent number: 5641853Abstract: A process for polymerizing oxepanes, dioxolanes, trioxanes, and tetrahydrofurans to their respective polymers by contacting them with a selected metal compound and an accelerator which is a selected vinyl ester or a selected phosphorous compound.Type: GrantFiled: February 28, 1996Date of Patent: June 24, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventor: Neville Everton Drysdale
-
Patent number: 5512652Abstract: Fluorinated aldehydes are made by reacting a fluorinated acyl chloride with a silicon hydride in the presence of palladium. Also disclosed are fluorinated ether aldehydes and their polymers, a process for making fluorinated aldehydes polymers using titanium or aluminum alkoxide catalysts, and a process for endcapping fluorinated polymers using perfluoroallyl fluorosulfate or fluorine.Type: GrantFiled: February 14, 1995Date of Patent: April 30, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventor: William B. Farnham
-
Patent number: 5434236Abstract: This invention relates to a polyester comprising repeating units having the structure: ##STR1## wherein R.sup.1 is selected from the group consisting of hydrogen, alkyl having 1 to 6 carbon atoms and aryl having 6 to 10 carbon atoms and R.sup.2 is selected from the group consisting of hydrogen, alkyl having 1 to 6 carbon atoms, and aryl having 6 to 10 carbon atoms.Type: GrantFiled: October 3, 1994Date of Patent: July 18, 1995Inventors: Alan W. White, Joseph R. Zoeller
-
Patent number: 5288840Abstract: A polyoxymethylene copolymer excellent in stability and mechanical properties which is comprised of oxymethylene units and oxyalkylene units and has a molecular weight of 10,000 to 200,000. The proportion of oxyalkylene units to oxymethylene units is 0.07 to 0.5% by mole and the ratio of the absorbance of terminal formate groups to that of methylene groups determined by infrared spectrophotometry is not more than 0.025. A process for producing the copolymer is also disclosed.Type: GrantFiled: June 2, 1992Date of Patent: February 22, 1994Assignee: Asahi Kasei Kabushiki KaishaInventors: Hirohisa Morishita, Kazuhiko Matsuzaki
-
Patent number: 5124417Abstract: Disclosed are novel compounds which are useful as initiators for cationically polymerizable monomers. The novel compounds comprise a carbon containing cation (e.g., trimethyloxonium) which is capable of initiating cationic polymerization and a non-nucleophilic counterion which is an at least partially fluorinated hydrocarbylsulfonato metallate (e.g. perfluoroethylsulfonato-aluminate). The disclosed initiators are capable of initiating the cationic polymerization of a wide variety of monomers such as epoxides, tetrahydrofuans, oxazolines, vinyls, lactones, and the like.Type: GrantFiled: September 3, 1991Date of Patent: June 23, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventor: Omar Farooq
-
Patent number: 4839407Abstract: A method for preparation of solid particulate polyacetal carboxylate. The method comprises agglomerating a solution comprising less than about 1% by weight methanol and between about 30% by weight and about 60% by weight polyacetal carboxylate onto a substrate to produce a free-flowing particulate solid. The solid comprises between about 30% by weight and about 55% by weight polyacetal carboxylate. The polyacetal carboxylate corresponds to the formula: ##STR1## where n is at least about 4 and represents the average chain length of the polyacetal carboxylate in the mixture, R.sub.1 and R.sub.2 are independently selected chemically stable groups that stabilize the polymer against rapid depolymerization in alkaline solution, and M is selected from the group consisting of alkali metals, ammonium, alkyl groups of 1 to about 4 carbon atoms, tetraalkyl ammonium groups, and alkanolamine groups having from 1 to about 4 carbon atoms in the alkyl chain.Type: GrantFiled: February 8, 1988Date of Patent: June 13, 1989Assignee: Monsanto CompanyInventors: David A. Martin, Edward L. Ries, William Vanderlinde, Marvin J. Young
-
Patent number: 4764585Abstract: Cationic fixing agents based on the reaction products of(a) a monofunctional or polyfunctional amine having one or more primary and/or secondary and/or tertiary amino groups and(b) cyanamide, dicyandiamide, guanidine or bisguanidinegive improved results when the reaction takes place in the presence of a catalyst (K) selected from metals, metal salts and heterocyclic nitrogen-containing organic bases, particularly zinc chloride.Type: GrantFiled: September 15, 1987Date of Patent: August 16, 1988Assignee: Sandoz Ltd.Inventors: Jurg Heller, Bruno Kissling, Curt Muller, Tibor Robinson, Salvatore Valenti
-
Patent number: 4547565Abstract: A trioxane copolymer is manufactured by adding to trioxane and a co-monomer, 0.0001 to 2.0 percent by weight, based on the total weight of the monomers, of one or more sterically hindered phenols, then co-polymerizing the resultant mixture in the presence of a cation-active catalyst, and then treating the resultant copolymer by heating it at a temperature which is higher than the melting point of the copolymer to melt the copolymer and decompose and remove unstable parts of the copolymer.Type: GrantFiled: June 8, 1984Date of Patent: October 15, 1985Assignee: Polyplastics Company, Ltd.Inventors: Takuzo Kasuga, Takeshi Asano, Yukio Ikenaga, Masami Yamawaki, Yasuyuki Takeda, Koichi Ichimura
-
Patent number: 4525573Abstract: The object of the invention are new thermoset polymers and prepolymers, a process for their preparation, and their uses. The new thermoset prepolymers consist, at least in part, of the polycondensation products of one or more pyridine derivatives containing at least two activated methyl groups with one or more aromatic monoaldehydes containing at least one hydroxyl group. These prepolymers are used to prepare composite materials, in particular laminates, that can be used at high temperatures.Type: GrantFiled: August 24, 1984Date of Patent: June 25, 1985Assignees: Societe Nationale des Poudres et Explosifs, Office National d'Etudes et de Recherches AerospatialesInventors: Marcel Ropars, Bertrand Bloch
-
Patent number: 4399272Abstract: A process for producing a polyacetal copolymer, which comprises copolymerizing formaldehyde and a compound selected from the group consisting of alkylene oxides, poly(alkylene oxides), cyclic formals and poly (cyclic formals) in the presence of a Lewis acid and an anionic polymerization catalyst with the exception of metal chelate compounds.Type: GrantFiled: November 4, 1980Date of Patent: August 16, 1983Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hisaya Sakurai, Minoru Hamada, Kazuhiko Matsuzaki, Muneaki Aminaka
-
Patent number: 4377667Abstract: A polyacetal suitable for moldings which are excellent in lubricity, wear and antistatic properties, which has at least one terminal of its linear polymer molecule capped with an alkylene oxide adduct of an alcohol or a carboxylic acid, which adduct is of the formula ##STR1## wherein R.sub.o is a hydrogen atom, alkyl group, substituted alkyl group, aryl group, or substituted aryl group, R.sub.o 's may be the same or different, R.sub.1 is an alkyl group, substituted alkyl group, aryl group, or substituted aryl group, R.sub.2 is a hydrogen atom, alkyl group, substituted alkyl group, aryl group, or substituted aryl group, m is from 2 to 6, and n is from 1 to 1,000; the number average molecular weight of said polyacetal being in the range from 10,000 to 500,000 excluding the terminal group.Type: GrantFiled: June 4, 1981Date of Patent: March 22, 1983Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hisaya Sakurai, Minoru Hamada, Kazuhiko Matsuzaki
-
Patent number: 4352922Abstract: According to the present invention, there is provided an improved method of producing a poly-(amide-imide) resin comprising the steps of:(1) reacting a phenanthrene with formaldehyde or a formaldehyde donor in the presence of an acid catalyst to give a phenanthreneformaldehyde reaction product having substantially only methylene bridges;(2) removing from the reaction product unreacted phenanthrene;(3) treating the reaction product with formaldehyde or a formaldehyde donor in the presence of an acid catalyst to give a high molecular weight product having substantially only methylene bridges;(4) oxidizing the high molecular weight product to break the 9, 10 bond in the phenanthrene moieties to produce a polycarboxylated reaction product;(5) reacting the polycarboxylated reaction product with an aromatic diamine to produce a poly-(amide-imide) resin.Type: GrantFiled: March 3, 1981Date of Patent: October 5, 1982Assignee: Coal Industry (Patents) LimitedInventors: Joseph G. Robinson, Angela M. Carswell, David I. Barnes
-
Patent number: 4332930Abstract: Undesirable deposition of polyoxymethylene onto the inner wall of a polymerization vessel and onto a stirrer, which deposition is observed in the slurry polymerization of formaldehyde carried out in an inert organic liquid medium in the presence of a polymerization catalyst, can be minimized by carrying out the slurry polymerization in the presence of at least one polyvalent metal salt selected from polyvalent metal salts of alkylsalicylic acids and polyvalent metal salts of dialkyl esters of sulfosuccinic acid. Optionally, a polyethylene glycol monoether may be used in addition to the polyvalent metal salt.Type: GrantFiled: August 22, 1980Date of Patent: June 1, 1982Assignee: UBE Industries, Ltd.Inventors: Takami Ishii, Naohisa Takikawa, Kiyoaki Tokunaga, Nobuhiro Ogawa
-
Patent number: 4259473Abstract: Self-curing or curable materials are obtained from the distillation residues of coal hydrogenation by condensing a residue of this type having a softening point of 30.degree. to 54.degree. C. in a first stage with a mono- or dihydroxybenzene and/or a methylhydroxybenzene and/or an ethylene substituted benzene. These reactants are used at a ratio of residue to benzene derivative between 1:1 and 2:1 and the reaction is carried out in the presence of acid at a pH of 1 to 2 and at a temperature of 90.degree. to 100.degree. C. In a second stage the thus obtained reaction product is then further reacted at about the same temperature with an aldehyde. As a result a novolak-type resin is obtained. The invention permits the making of inexpensive self-curing or curable materials with properties similar to those of phenolic acids. Besides, the invention also provides an outlet for the high boiling residue of the extractive coal hydrogenation which otherwise had little use.Type: GrantFiled: January 15, 1980Date of Patent: March 31, 1981Assignee: Bergwerksverband GmbHInventors: Ingo Romey, Menachem El-Roy
-
Patent number: 4246396Abstract: Polyoxymethylene having high molecular weight and high thermal stability is produced by polymerizing formaldehyde in the presence of a specific catalyst and then heating the resulting polyoxymethylene. The specific catalyst is produced by contacting a phosphorus containing compound or an amine (c) with a reaction product obtained by reacting salicylic acid component (b) with an organoaluminum compound (a) having the formula ##STR1## wherein R.sup.1 represents an alkyl or alkoxyl group and R.sup.2 and R.sup.3 respectively represent alkyl or alkoxyl group or a halogen atom.Type: GrantFiled: November 1, 1979Date of Patent: January 20, 1981Assignee: Mitsubishi Chemical Industries, LimitedInventors: Ikuo Sukegawa, Seiichi Nozawa, Seiichi Mukai, Masaharu Shikama
-
Patent number: 4225685Abstract: The alkali metal, ammonium and alkanol ammonium salts of polymeric acetal carboxylates are stable detergent builders under laundry use conditions but depolymerize in mildly acidic media, making the polymer fragments more readily biodegradable in waste streams. Such polymeric acetal carboxylates can now be made by a process which comprises bringing together in a reaction zone under polymerization conditions an ester of glyoxylic acid and a polymerization initiator, and adding to the resulting polymer an alkyl vinyl ether and an organoaluminum compound to stabilize the resulting polymer against rapid depolymerization in alkaline solution. The preferred alkyl vinyl ether is ethyl vinyl ether, and the preferred organoaluminum compounds are alkyl aluminum halides and trialkyl aluminum.Type: GrantFiled: June 18, 1979Date of Patent: September 30, 1980Assignee: Monsanto CompanyInventors: David R. Dyroff, Victor D. Papanu
-
Patent number: 4173551Abstract: Aromatic onium salts, such as diaryliodonium salts, have been found to be effective thermal initiators for the polymerization of a variety of cationically polymerizable materials including epoxides, cyclic ethers, phenol formaldehyde resins, etc., when used in combination with various cocatalysts such as organic acids and copper salts.Type: GrantFiled: December 16, 1977Date of Patent: November 6, 1979Assignee: General Electric CompanyInventor: James V. Crivello
-
Patent number: 4158729Abstract: Polyoxymethylene is produced by polymerizing formaldehyde in the presence of a catalyst comprising a catalytic component of an organoaluminum compound or a complex thereof supported on a modifier of a higher carboxylic acid amide compound.The organoaluminum compound can be in a form of a complex of the organoaluminum compound and a phosphorus compound or an amine.Type: GrantFiled: March 30, 1978Date of Patent: June 19, 1979Assignee: Mitsubishi Chemical Industries Ltd.Inventors: Harutaka Kimura, Seiichi Nozawa, Seiichi Mukai, Masaharu Shikama