From Reactant Containing Two Or More Ethylenic Unsaturated Groups Patents (Class 521/150)
-
Patent number: 4226945Abstract: A rubber composition, expansible under vulcanization conditions consisting of at least one vulcanizable synthetic rubber, vulcanizing agents and a propellant gas donor under vulcanizing conditions consisting of(a) from 100 to 900 parts by weight, based on 100 parts by weight of said synthetic rubber, of natural, non-pretreated chalk, and(b) from 5 to 120 parts by weight, based on 100 parts by weight of said synthetic rubber, of at least one natural or synthetic fatty acid having from 12 to 22 carbon atoms.Type: GrantFiled: August 7, 1979Date of Patent: October 7, 1980Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Hans J. Bucken, Helmut Horskorte
-
Patent number: 4224415Abstract: 1. In a process for preparing a cation exchange resin having a water-insoluble matrix and cation exchange groups bonded thereto, the improvement comprising employing as said matrix a solid copolymer of macroreticular structure which is permeated by small channels or voids into which liquids are able to penetrate, which matrix is prepared by copolymerizing a mixture consisting essentially of (1) a monovinyl carbocyclic aromatic compound or an ester of acrylic or methacrylic acid, with (2) a polyethylenically unsaturated monomer selected from the group consisting of a polyvinyl carbocyclic aromatic compound, an ester of a dihydric alcohol and an .alpha.-.beta.Type: GrantFiled: July 18, 1958Date of Patent: September 23, 1980Assignee: Rohm and Haas CompanyInventors: Erich F. Meitzner, James A. Oline
-
Patent number: 4221871Abstract: Novel, macroreticular cross-linked anion exchange and adsorbent copolymers of at least one monovinylidene ring-containing nitrogen heterocyclic monomer are prepared. Preferred monovinylidene ring-containing heterocyclic monomers are the various vinylpyridines.Type: GrantFiled: December 16, 1970Date of Patent: September 9, 1980Assignee: Rohm and Haas CompanyInventors: Erich F. Meitzner, James A. Oline
-
Patent number: 4208309Abstract: What is disclosed is a pearl polymer product, a method of making the same, and the use thereof as a carrier for biologically active materials, said product being composed of hollow pearl particles having a diameter from 5 to 1000 microns and consisting of a cross-linked polymer which is a cross-linked homopolymer or copolymer comprising at least one member selected from the group consisting of acrylamide, methacrylamide, methylene-bis-acrylamide and methylene-bis-methacrylamide, said polymer containing at least 5 percent by weight of a monomer having at least two carbon-carbon double bonds which are activated by a neighboring phenyl group or carbonyl group, said polymer further being of a composition such that x+3y.gtoreq.40, where x is the percent by weight in the polymer of acrylamide and methacrylamide and y is the percent by weight in the polymer of methylene-bis-acrylamide and methylene-bis-methacrylamide.Type: GrantFiled: June 18, 1979Date of Patent: June 17, 1980Assignee: Rohm GmbHInventors: Dieter Kraemer, Hermann Plainer, Waldemar Schleier
-
Patent number: 4207221Abstract: There is disclosed an environmentally degradable plastic composition comprising an organic polymeric material having dispersed therein at least one unsaturated wax as a readily autoxidizable organic substance.Type: GrantFiled: December 27, 1977Date of Patent: June 10, 1980Assignee: Owens-Illinois, Inc.Inventors: John W. Tobias, Lynn J. Taylor
-
Patent number: 4192924Abstract: Curable organic resin compositions, such as epoxy resins, are provided, based on the use of a diaryliodonium salt-redox catalyst curing system. The curable compositions can provide flexible or rigid organic resin foam when used with a volatile organic solvent as a result of exothermic heat of cure.Type: GrantFiled: April 30, 1979Date of Patent: March 11, 1980Assignee: General Electric CompanyInventor: James V. Crivello
-
Patent number: 4190709Abstract: Mercury and copper ions may be removed very selectively from aqueous solutions by means of a metal-chelating resin consisting of a polymer produced by the condensation of a phenolic component comprising one or more phenols, formaldehyde, and a diamino component comprising one or more di-(secondary amino) compounds under neutral conditions. The resin is prepared by condensing approximately equimolar quantities of a phenolic component comprising one or more phenols, and a diamino component comprising one or more di-(secondary amino) compounds with approximately twice the molar quantity of formaldehyde under Mannich reaction conditions.Type: GrantFiled: May 23, 1978Date of Patent: February 26, 1980Assignee: Commonwealth Scientific and Industrial Research OrganizationInventor: Jonathan H. Hodgkin
-
Patent number: 4190713Abstract: What is disclosed is a pearl polymer product, a method of making the same, and the use thereof as a carrier for biologically active materials, said product being composed of hollow pearl particles having a diameter from 5 to 1000 microns and consisting of a cross-linked polymer which is a cross-linked homopolymer or copolymer comprising at least one member selected from the group consisting of acrylamide, methacrylamide, methylene-bis-acrylamide and methylene-bis-methacrylamide, said polymer containing at least 5 percent by weight of a monomer having at least two carbon-carbon double bonds which are activated by a neighboring phenyl group or carbonyl group, said polymer further being of a composition such that x+3y.gtoreq.40, where x is the percent by weight in the polymer of acrylamide and methacrylamide and y is the percent by weight in the polymer of methylene-bis-acrylamide and methylene-bis-methacrylamide.Type: GrantFiled: May 15, 1978Date of Patent: February 26, 1980Assignee: Rohm GmbHInventors: Dieter Kraemer, Hermann Plainer, Waldemar Schleier
-
Patent number: 4187159Abstract: Crosslinked polyvinyl chloride foams are formed by first expanding a polyvinyl chloride containing plastisol comprising a blowing agent, and a reactive crosslinking plasticizer to form a foamed composition and then subjecting the foamed composition to irradiation to crosslink the foamed composition via the crosslinking plasticizer.Type: GrantFiled: July 28, 1976Date of Patent: February 5, 1980Assignee: Stauffer Chemical CompanyInventors: Jagadish C. Goswami, Arthur J. Yu
-
Patent number: 4186163Abstract: This invention relates to a novel elastomeric foamed material which has surprisingly been found to exhibit a variety of unusual and desirable features both in its physical properties and in its process of manufacture. These foamed compositions of a lightly sulfonated elastomeric gum contain a nonvolatile polar plasticizer and preferably extenders such as oil and fillers. These elastomer foams exhibit an unusual profile of physical properties including melt reprocessability of fabricated articles, and high temperature reshaping of foamed objects while maintaining a good foam structure. These novel foams can be manufactured with relatively uniform cell structures and with small cell sizes at foam densities from near bulk density to less than 0.1 g/cc.Type: GrantFiled: October 4, 1977Date of Patent: January 29, 1980Assignee: Exxon Research & Engineering Co.Inventors: Douglas Brenner, Robert D. Lundberg
-
Patent number: 4183834Abstract: A resinous polyelectrolyte, especially suitable for use as a tackifier in latex adhesives, comprises an ionizable resinous mixture which is ionized with a volatile ionizing agent, said ionizable resinous mixture being the reaction product of a rosin, a carboxylic acid, and a C.sub.1 -C.sub.18 mono-alcohol, said ionizable resinous mixture having a softening point not substantially above about 125.degree. C. and an acid number of between about 30 and 150, said reaction product comprising the carbocyclic nucleus of rosin having at least one carboxylic acid group and at least one carboxylic acid ester group of said mono-alcohol.Type: GrantFiled: December 11, 1978Date of Patent: January 15, 1980Assignee: Sylvachem CorporationInventors: James M. Evans, Walter W. Spangler, Jr.
-
Patent number: 4181780Abstract: This invention relates to a novel elastomeric foamed material which has been found to exhibit a variety of unusual and desirable features both in its physcial properties and in its process of manufacture. These foamed compositions of a lightly sulfonated elastomeric gum contain a non-volatile polar plasticizer and preferably extenders such as oil and fillers. These elastomer foams exhibit an unusal profile of physical properties including extremely rapid production, melt reprocessability of fabricated articles, a novel memory characteristic, and high temperature reshaping of foamed objects while maintaining a good foam structure. These novel foams can be manufactured with relatively uniform cell structures and with small cell sizes at foam densities from near bulk density to less than 0.1g/cc.Type: GrantFiled: January 5, 1979Date of Patent: January 1, 1980Assignee: Exxon Research & Engineering Co.Inventors: Douglas Brenner, Robert D. Lundberg
-
Patent number: 4169172Abstract: A no-gel latex foam is formed by curing a no-gel latex foam froth on a water vapor-permeable foraminous support means comprising a backing material that has been coated with a water soluble release agent. During curing, the foam froth dehydrates through an upper free surface and at its lower supported surface through the release agent and the foraminous support means. The cured foam is then removed from the foraminous support means free of any backing material.Type: GrantFiled: December 12, 1977Date of Patent: September 25, 1979Inventor: Eugene J. Bethe
-
Patent number: 4164512Abstract: This invention relates to a novel elastomeric foamed material which has been found to exhibit a variety of unusual and desirable features both in its physical properties and in its process of manufacture. These foamed compositions of a lightly sulfonated elastomeric gum contain a non-volatile polar plasticizer and preferably extenders such as oil and fillers. These elastomer foams exhibit an unusual profile of physical properties including extremely rapid production, melt reprocessability of fabricated articles, a novel memory characteristic, and high temperature reshaping of foamed objects while maintaining a good foam structure. These novel foams can be manufactured with relatively uniform cell structures and with small cell sizes at foam densities from near bulk density to less than 0.1g/cc.Type: GrantFiled: November 29, 1977Date of Patent: August 14, 1979Assignee: Exxon Research & Engineering Co.Inventors: Douglas Brenner, Robert D. Lundberg
-
Patent number: 4144153Abstract: A process for producing a photodegradable rubber foamed products of excellent softness, which comprises mixing 1,2-polybutadiene with 0.1 to 3.0% of a photosensitizer and with a thermally decomposable foaming agent, irradiating with ultraviolet ray of a wavelength of 240 to 400 m.mu. for 10 minutes or less to form a cross-linked material having a gel fraction of 30 to 80% (in boiling toluene; 7 hours), and heating to 150 to 230.degree. C. to form a foamed product. In particularly preferred embodiments of this invention, the foaming agent is p,p'-oxybis (benzenesulfonylhydrazide).Type: GrantFiled: October 1, 1976Date of Patent: March 13, 1979Assignee: Takiron Co., Ltd.Inventors: Yasuo Shikinami, Ryuichi Kimura, Yoshinobu Yoshikawa, Kosuke Iida, Kunihiro Hata
-
Patent number: 4133942Abstract: An acrylic polymer gel suitable for use as a carrier in the controlled synthesis of polypeptides is provided. The polymer comprises a diazotized terpolymer of the condensation product of a monomer selected from the group consisting of hydroxyalkyl acrylates and hydroxyalkyl methacrylates, a polyfunctional cross-linking monomer selected from the group consisting of alkylene diacrylates, alkylene dimethacrylates, polyacrylates and polymethacrylates of polyalcohols, alkylene bisacrylamides and divinylbenzene, and an aromatic ring-containing compound selected from the group consisting of aromatic acids and their anhydrides and chlorides, aromatic isocyanates, halogenophenylsilanes, and aromatic epoxy compounds. The condensate has its aromatic rings chlormethylated. The first monomer and the polyfunctional cross-linking monomer are copolymerized and the resultant copolymer is condensed with said compounds which contain an aromatic ring.Type: GrantFiled: November 30, 1977Date of Patent: January 9, 1979Assignee: Ceskoslovenska akademie vedInventors: Jiri Coupek, Vladimir Gut