Group Viii, I.e., Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt Patents (Class 524/785)
-
Patent number: 4740534Abstract: Elastomeric or flexible surgical adhesives, comprising [A] NCO-terminated hydrophilic urethane prepolymer derived from hydrophilic polyether polyol of higher oxyethylene content, or combination of [A] with [B] unsaturated cyano compound containing cyano group attached to a carbon atom constituting the polymerizable double bond, are used for bonding of tissues, with rapid cure rate and sufficient bonding power.Type: GrantFiled: August 21, 1986Date of Patent: April 26, 1988Assignee: Sanyo Chemical Industries, Ltd.Inventors: Takehisa Matsuda, Hiroo Iwata, Tetsuo Itoh
-
Patent number: 4735979Abstract: An auto-adhering one-component room temperature vulcanizable silicone sealant composition generally utilizing a di-substituted mixed oxime-alkoxysilyalkyl area adhesion promoter compound. The sealant has low odor, is non-corrosive to ferrous or aluminum substrates, has good adhesion to many types of substrates, and eliminates the need for a silicone resin primer. In addition, it exhibits surprisingly good adhesion to oil contaminated surfaces.Type: GrantFiled: April 4, 1985Date of Patent: April 5, 1988Assignee: Loctite CorporationInventors: M. Dale Beers, James E. Thompson
-
Patent number: 4734455Abstract: This invention is an active hydrogen-containing composition comprising a relatively high equivalent weight active hydrogen-containing material and an inert, particulate filler which is stabilized with a stabilizer composition comprising(1) a carboxylic or phosphorus-containing acid containing about 8 to about 30 carbon atoms and(2) a metal salt of a carboxylic acid containing about 8 to about 30 carbon atoms.The stabilizer composition substantially reduces the tendency of the filler to settle out of the relatively high equivalent weight active hydrogen-containing compound, while having minimal impact on the reactivity of the active hydrogen-containing composition with a polyisocyanate and on the physical properties of the resultant polyurethane.Type: GrantFiled: December 5, 1986Date of Patent: March 29, 1988Assignee: The Dow Chemical CompanyInventors: Larry W. Mobley, James K. Jennings, Robert B. Turner
-
Patent number: 4696970Abstract: The present invention produces a silicone polymer-filler mixture by passing prescribed quantities of silicone oligomer, filler and polymerization catalyst through a continuous kneader extruder with kneading and polymerization of the silicone oligomer into silicone polymer. A homogeneous silicone polymer-filler mixture is rapidly produced in a single process with low energy consumption.The silicone polymer-filler mixture produced by the present method is useful as a base for diverse silicone rubber compositions, silicone compounds and silicone greases, etc.Type: GrantFiled: May 12, 1986Date of Patent: September 29, 1987Assignee: Toray Silicone Company, Ltd.Inventors: Shin-ichi Sumimura, Akira Tazawa
-
Patent number: 4678819Abstract: A composition for artificial marble which comprises a polymer composition in which an inorganic substance and an organic polymer are firmly bound in one body and a vinyl compound, said polymer composition being obtained by polymerizing a polymerizable vinyl monomer, in the presence of at least one monomer selected from the group consisting of carboxylic acid monomer, sulfonic acid monomer, and sulfonate monomer, in an aqueous polymerization system containing an inorganic substance dispersed therein; and a processs for producing artificial marble from said composition by cast polymerization with the addition of a polymerization initiator.Type: GrantFiled: August 20, 1985Date of Patent: July 7, 1987Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Isao Sasaki, Nobuhiro Mukai
-
Patent number: 4677155Abstract: Novel photosensitive polymers having an intrinsic viscosity [.eta.] of not less than 0.10 dl/g, measured at 25.degree. C. in N,N-dimethylformamide, and consisting of 1 to 40 mol % of recurring structural elements of the formula I ##STR1## and 60 to 99 mol % of recurring structural elements of the formula II ##STR2## in which R, R', R", X, Z and Z.sub.1 are as defined in patent claim 1, are described. The polymers according to the invention can be partially complexed with metal ions of a metal of group VIII or Ib of the periodic table. In not less than 20% of the structural elements of the formula II, Z.sub.1 is --COO--C.sub.2-12 -alkylene--OH, --COO(CH.sub.2 CH.sub.2 O).sub.p H, --COO[CH.sub.2 CH(CH.sub.3)O].sub.p H, hydroxymethylphenyl, --CONH--C.sub.1-4 -alkylene--OH or --COO--C.sub.1-4 --alkylene--N(Q')(Q"), where p=2-4. The polymers according to the invention can be used, inter alia, for producing images, in particular for the construction of electrically conductive coatings or patterns.Type: GrantFiled: March 6, 1986Date of Patent: June 30, 1987Assignee: Ciba-Geigy CorporationInventor: Jurgen Finter
-
Patent number: 4623693Abstract: The room temperature-curable organopolysiloxane composition of the invention is characteristic in the remarkably increased adhesive bonding strength of the rubber of the composition to the surface of a substrate of metals, plastics and others on which the composition has been cured. The composition is also advantageous in the improved thixotropy despite the admixture of an adhesion improver mentioned below. Thus, the composition comprises, in addition to conventional components in a deacidification type room temperature curable organopolysiloxane composition, a specific organic silicon compound represented by the general formula(R.sup.3 O).sub.b (MeCOO).sub.3-b Si--O--R.sup.4 --O--Si(OCOMe).sub.3-b (OR.sup.3).sub.b,in which R.sup.3 is a monovalent hydrocarbon group, R.sup.4 is a divalent hydrocarbon group or a polyoxyalkylene group of the formula --C.sub.x H.sub.2x --O).sub.n C.sub.x H.sub.2x --, x being 2 to 4 and n being a positive integer, and b is 1 or 2.Type: GrantFiled: August 5, 1985Date of Patent: November 18, 1986Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yoshio Inoue, Takehide Okami, Koji Yokoo, Hitoshi Kinami
-
Patent number: 4608397Abstract: The invention relates to a process for the production of polyurethane(urea) compositions which contain lignite and/or peat bound in an abrasion-proof manner, which are preferably modified cationically and which have a very high water absorbability. The compositions are produced by reacting isocyanate-terminated prepolymers, which are preferably cationically modified, and which preferably have a functionality of more than 2.1, with more than the stoichiometric quantity of water in the presence of lignite and/or peat and optionally in the presence of organic and/or inorganic fillers and biomasses (living cells, living bacteria or enzymes). The corresponding polyurethane(urea) compositions contain up to 95% by weight of lignite and/or peat in the filler-containing polyurethane(urea) composition and are already swollen from production. The water absorbability (WAF) value thereof when suspended in water is from 33 to 97% by weight of water.Type: GrantFiled: November 16, 1984Date of Patent: August 26, 1986Assignee: Bayer AktiengesellschaftInventor: Artur Reischl
-
Patent number: 4607068Abstract: Radiation curable coating compositions, and especially electron beam-curable coating compositions, are disclosed in which magnetizable particles are dispersed in a liquid vehicle comprising a polyethylenically unsaturated polyurethane oligomer which includes a polycarbonate diol, and from 5% to 50%, based on the total weight of unsaturated material, of a polyethylenically unsaturated isocyanurate, such as a triacrylate of tris(2-hydroxyethyl) isocyanurate.Type: GrantFiled: June 3, 1985Date of Patent: August 19, 1986Assignee: DeSoto, Inc.Inventor: Robert E. Ansel
-
Patent number: 4605105Abstract: A brake system of a semi-metallic friction material and a braking component is characterized in that the friction material contains a metallic fiber and/or a metallic powder, a part or all of which has a lower hardness than that of the braking component.Type: GrantFiled: June 4, 1984Date of Patent: August 12, 1986Assignee: Akebono Brake Industry Co., Ltd.Inventor: Osao Ogiwara
-
Patent number: 4574097Abstract: A thixotropic gel composition comprising an .alpha.-cyanoacrylate monomer, stabilizer, plasticizer and free radical scavenger is improved with the addition of fibers, spheres or mixtures of the same of certain materials which are insoluble in and inert to the .alpha.-cyanoacrylate monomer. The fibers or spheres composed of such materials as polyolefins, polyesters or polyamides enhance the physical and chemical characteristics of the thixotropic gel.Type: GrantFiled: August 10, 1984Date of Patent: March 4, 1986Assignee: Isopedix CorporationInventor: Travis W. Honeycutt
-
Patent number: 4546145Abstract: A polymer composition wherein an inorganic substance and an organic polymer are firmly consolidated, which is characterized by being produced by polymerizing a vinyl monomer susceptible to radical polymerization in a polymerization system containing a dispersed inorganic substance in the presence of at least one monomer selected from sulfonic acid monomers, sulfonate monomers, or carboxylic acid monomers represented by the general formula [I] ##STR1## wherein R.sub.1 is a hydrogen atom, alkyl group having 1 to 20 carbon atoms, phenyl group, derivative of phenyl group, or halogen atom, X is CONH, ##STR2## COO(CH.sub.2).sub.m or (CH.sub.2).sub.n (wherein R.sub.2 and R.sub.3 are each a hydrogen atom or alkyl group having 1 to 15 carbon atoms, R.sub.4 is an alkylene group having 1 to 15 carbon atoms, m is an integer of 1 to 20, and n is an integer of 0 to 20), and Y is a hydrogen atom, ammonium radical, or an alkali metal atom, or by the general formula [II] ##STR3## wherein R.sub.Type: GrantFiled: August 14, 1984Date of Patent: October 8, 1985Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kazuo Kishida, Isao Sasaki, Nobuhiro Mukai
-
Patent number: 4499234Abstract: Stable, substantially acid-free, one package, moisture curable RTV compositions are provided having a scavenger for chemically combined hydroxy groups of the formula ##STR1## where x equals 1 or 2 and y equals 0 to 3 inclusive. A method for providing the aforesaid moisture curable RTV compositions is also provided. Novel compounds of the formula ##STR2## where x equals 1 or 2 and y equals 0 to 2 inclusive are provided as are methods for making such novel compounds.Type: GrantFiled: October 14, 1983Date of Patent: February 12, 1985Assignee: General Electric CompanyInventors: Sandra L. Pratt, Gary M. Lucas, Michio Zembayashi
-
Patent number: 4497943Abstract: The room temperature curable organopolysiloxane composition of the invention comprises a dimethylpolysiloxane terminated at both molecular chain ends with silanolic hydroxy groups, an organocyclopolysiloxane, typically a cyclotetrasiloxane, having 2 or more alkenyloxy groups such as isopropenyloxy groups in a molecule as a crosslinking agent for the dimethylpolysiloxane and a guanidyl-containing organosilane or polysiloxane compound as a curing catalyst. The composition is capable of giving a cured rubbery elastomer when kept in a moisture-containing atmosphere at room temperature without the problems in the prior art compositions such as noxious condensation products or poor adhesion to the surface of the substrate on which the composition has been cured.Type: GrantFiled: April 21, 1983Date of Patent: February 5, 1985Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshio Takago, Osamu Sodeyama, Masami Terashima
-
Patent number: 4496686Abstract: Liquid coating compositions adapted to be cured by exposure to penetrating radiation are disclosed in which a liquid vehicle of coating viscosity having an ethylenically unsaturated portion comprising one or more polyethylenically unsaturated materials adapted to cure on radiation exposure, pigment dispersed in the vehicle, and an ethylenically unsaturated radiation-curable dispersant containing a carboxyl group for wetting the pigment and assisting in the stable dipsersion of the pigment in the vehicle. This dispersant is a half amide or half ester of an ethylenically unsaturated polycarboxylic acid anhydride, such as maleic anhydride, with an organic compound having a molecular weight of from 100 to 4000 and which contains a single hydroxy group or a single amino group as the sole reactive group thereof.Type: GrantFiled: May 7, 1984Date of Patent: January 29, 1985Assignee: DeSoto, Inc.Inventor: Robert E. Ansel
-
Patent number: 4495330Abstract: Stable, substantially acid free, one package organopolysiloxane compositions are provided which have a base polymer, a condensation catalyst, a silane scavenger for hydroxy functional groups having cycloaliphatic enoxy functionality, and a curing accelerator, said compositions being curable upon exposure to atmospheric moisture to translucent and colorless tack-free elastomers.Type: GrantFiled: May 25, 1983Date of Patent: January 22, 1985Assignee: General Electric CompanyInventors: Rack H. Chung, deceased, by Betsy A. Chung, executrix
-
Patent number: 4495331Abstract: There is provided a one package RTV composition which is convertible to a tack-free elastomer comprising:(A) a polydiorganosiloxane base polymer,(B) an effective amount of a condensation catalyst, and(C) a stabilizing amount of organic scavenger for hydroxy groups which has the formula:R--N.dbd.C.dbd.O).sub.xwhere R is a linear or cyclic aliphatic compound or an aromatic compound, and x equals at least 1.Type: GrantFiled: May 25, 1983Date of Patent: January 22, 1985Assignee: General Electric CompanyInventor: Rack H. Chung, deceased
-
Patent number: 4490492Abstract: Crystalline, synthetic calcium silicate, which can be in diverse stages of hydration and has a high length/width ratio and a width dimension of less than 1 .mu.m, is outstandingly suitable as a sedimentation inhibitor for finely divided fillers in liquid substances.Type: GrantFiled: September 27, 1982Date of Patent: December 25, 1984Assignee: Ciba-Geigy AGInventors: Dieter Skudelny, Gerhard Rauth
-
Patent number: 4476258Abstract: Energy absorbing polyurethane elastomer compositions having a density of from about 0.4 to about 1 gm/cc, a compression set of less than about 5% and a recovery time of from about 10 to about 100 milliseconds containing a light-weight filler are formed by reaction of a urethane-forming component comprising a compound containing at least four urethane-forming reactive sites and capable of forming stable complexes through unsatisfied urethane-forming reactive sites, an elasticizing polyol selected from the group consisting of diols and triols, and a diisocyanate in less than stoichiometric amounts.Type: GrantFiled: March 30, 1983Date of Patent: October 9, 1984Assignee: National Research Development CorporationInventor: Maurice A. F. Hiles
-
Patent number: 4472563Abstract: Improved inhibitor systems are disclosed for the reaction of silicon hydride containing silicones with vinyl containing and/or hydroxyl containing silicones. The improved inhibitors are mixtures of conjugated ene-ynes and vinylcyclosiloxanes. Inhibition of cure at room temperature is combined with rapid cure at elevated temperature when the improved inhibitors are used.Type: GrantFiled: February 6, 1984Date of Patent: September 18, 1984Assignee: Dow Corning CorporationInventors: Grish Chandra, Peter Y. K. Lo, Yolanda A. Peters
-
Patent number: 4471009Abstract: A thermosetting composition for use in the formation of a magnetizable film on a substrate is disclosed herein, which has improved resistance to frictional wear and abrasion, and improved impact durability. The composition comprises a heat-curable polymer resin, magnetizable particles, a fatty ester, and sufficient solvent to provide a viscosity of from about 200 to about 600 centipoise at about 24.degree. C. The method of preparation of the composition as well as its use are also disclosed.Type: GrantFiled: April 15, 1983Date of Patent: September 11, 1984Assignee: Dysan CorporationInventor: Norman M. Phillips
-
Patent number: 4471089Abstract: A novel polymer is provided as the condensation reaction product of a non-aqueous mixture of a phenol and an aldehyde in a molar ratio of about 0.5 to 1 phenol to aldehyde, containing refractory fibers, such as carbon, graphite, silica, having an aspect and metal oxides and silicates, which fibers have an aspect ratio of about 10. The phenol is selected from metacresol, orthocresol, 3,5-dimethylphenol, resorcinol and substituted resorcinols, the preferred material being mostly resorcinol. The aldehyde is selected from furfural and mixtures of furfural and paraformaldehyde. The condensation polymerization reaction can be effected by adding an acid catalyst to the mixture or by employing a curing agent which provided a polyfunctional amine reactive with either or both the aldehyde and the phenol.Type: GrantFiled: December 27, 1982Date of Patent: September 11, 1984Assignee: Fiber Materials, Inc.Inventors: Lawrence E. McAllister, Herbert Dietrich
-
Patent number: 4469714Abstract: This invention provides a composition comprising about 15 to about 75% by weight of a thermosetting or ultraviolet-curable resin, about 24.5 to about 84.5% by weight of finely divided heat-resistant inorganic substance and about 0.5 to about 20% by weight of a finely divided palladium catalyst. This composition is the solvent-free type and useful for forming an electroconductive metal coating on an electrically nonconductive base material by chemical plating.Type: GrantFiled: September 2, 1983Date of Patent: September 4, 1984Assignee: Okuno Chemical Industry Co., Ltd.Inventors: Masatoshi Wada, Nobuyuki Konaga, Kenichi Nishiwaki, Yasuhiro Kobori
-
Patent number: 4461867Abstract: The adhesion of self-bonding, low modulus, one package, room temperature vulcanizable silicone compositions to a variety of substrates is effectively promoted by incorporation in the silicone composition, before curing, a small effective amount of an adhesion promoting composition comprising predominantly at least one diorganocyclopolysiloxane compound of the formula: ##STR1## wherein R.sup.1 may be C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 gamma-trihaloalkyl or phenyl; R.sup.2 is alkylene of from 2 to 6 carbon atoms; R.sup.3, R.sup.4 and R.sup.5 are, independently, C.sub.1 -C.sub.6 alkyl or C.sub.2 -C.sub.6 alkanoyl; and n is either 3 or 4.Type: GrantFiled: September 27, 1982Date of Patent: July 24, 1984Assignee: General Electric CompanyInventor: Richard P. Surprenant
-
Patent number: 4460739Abstract: The adhesion of self-bonding, low modulus, one package, room temperature vulcanizable silicone compositions to a variety of substrates is effectively promoted by incorporation in the silicon composition, before curing, of a small effective amount of an adhesion promoting composition comprising at least one maleamidylalkyltrialkoxysilane or maleamidylalkyltriacyloxysilane compound of the formula: ##STR1## wherein A is divalent alkylene of from 2 to 6 carbon atoms and R.sup.1, R.sup.2 and R.sup.3 are, independently, C.sub.1 -C.sub.6 alkyl or C.sub.2 -C.sub.6 alkanoyl.Type: GrantFiled: July 1, 1983Date of Patent: July 17, 1984Assignee: General Electric CompanyInventor: Bruce A. Ashby
-
Patent number: 4458051Abstract: Polymerizable liquid synthetic resins, liquid reactive constituents of synthetic resins or liquid additives for plastics, in each case containing mineral fillers, are converted to dry, pourable mixtures by mixing with 0.25-5% by weight of a crystalline synthetic calcium silicate, which can be in diverse stages of hydration and has a high length/width ratio and width dimensions of less than 1 .mu.m, it being possible, by this means, to employ the resins not only as casting resins but also as compression moulding resins and adhesives. In addition, handling and processability are improved.Type: GrantFiled: September 20, 1982Date of Patent: July 3, 1984Assignee: Ciba-Geigy CorporationInventor: Kurt Munk
-
Patent number: 4455404Abstract: Rigid, non-elastomeric, non-cellular, amorphous metal reinforced urethane compositions and methods for preparing them; said composition characterized by high flexural strength and prepared by impregnating an amorphous metal reinforced material with a polyether-urethane prepared by admixing a blend of polyethers having an average functionality of from 4.0 to about 7.5 and an average hydroxyl number of from 300 to about 600, with an organic polyisocyanate and curing said impregnated amorphous metal reinforced material.Type: GrantFiled: May 16, 1983Date of Patent: June 19, 1984Assignee: Allied CorporationInventor: Edward R. Degginger
-
Patent number: 4443565Abstract: A thermoplastic resin composition comprises 100 parts by weight of metal foil fragments, from 1 to 10 parts by weight of a first polymer covering the surfaces of the metal foil fragments and obtained by polymerizing at least one of monomers selected from the group consisting of acrylic acid, methacrylic acid, an alkylacrylate, an aminoalkylacrylate, an alkylmethacrylate and an aminoalkylmethacrylate in the presence of the metal foil fragments, and from 5 to 33 parts by weight of a second polymer obtained by polymerizing a mixture of an aromatic vinyl monomer and a monomer copolymerizable with the atomatic vinyl monomer. Also disclosed is a process for preparing the thermoplastic resin composition containing metal foil fragments.Type: GrantFiled: February 1, 1983Date of Patent: April 17, 1984Assignee: Mitsubishi Monsanto Chemical CompanyInventors: Kanji Kasahara, Akira Sakamoto
-
Patent number: 4443495Abstract: This invention relates to a heat curing process and to a solventless screen printable, heat curable conductive ink composition comprising(1) an ethylenically unsaturated member of the group consisting of(a) a liquid, ethylenically, unsaturated monomer, oligomer or prepolymer of the formula: ##STR1## wherein R is H or CH.sub.3, R.sub.1 is an organic moiety and n is at least 2,(b) a polythiol in combination with (a) supra,(c) a polythiol in combination with a liquid ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR2## wherein R.sub.2 is H or CH.sub.3, R.sub.3 is an organic moiety and n is at least 2, and(d) mixtures of (a), (b) and (c),(2) a thermal initiator, and(3) an electrically conductive material.Heating of the composition in a desired pattern on a substrate results in a printed electric circuit.Type: GrantFiled: May 5, 1983Date of Patent: April 17, 1984Assignee: W. R. Grace & Co.Inventors: Charles R. Morgan, Arthur D. Ketley
-
Patent number: 4435540Abstract: A polymer composition wherein an inorganic substance and an organic polymer are firmly consolidated, which is characterized by being produced by polymerizing a vinyl monomer susceptible to radical polymerization in a polymerization system containing a dispersed inorganic substance in the presence of at least one monomer selected from sulfonic acid monomers, sulfonate monomers, or carboxylic acid monomers represented by the general formula [I] ##STR1## wherein R.sub.1 is a hydrogen atom, alkyl group having 1 to 20 carbon atoms, phenyl group, derivative of phenyl group, or halogen atom, X is CONH, ##STR2## COO(CH.sub.2).sub.m or (CH.sub.2).sub.n (wherein R.sub.2 and R.sub.3 are each a hydrogen atom or alkyl group having 1 to 15 carbon atoms, R.sub.4 is an alkylene group having 1 to 15 carbon atoms, m is an integer of 1 to 20, and n is an integer of 0 to 20), and Y is a hydrogen atom, ammonium radical, or an alkali metal atom, or by the general formula [II] ##STR3## wherein R.sub.Type: GrantFiled: December 31, 1981Date of Patent: March 6, 1984Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kazuo Kishida, Isao Sasaki, Nobuhiro Mukai
-
Patent number: 4421660Abstract: Colloidal size particles of an inorganic solid such as magnetic iron oxide or titanium dioxide are encapsulated in a hydrophobic addition polymer such as a polymer of styrene by a polymerization process wherein a water-immiscible (hydrophobic) monomer is dispersed in an aqueous colloidal dispersion of the inorganic particles and subjected to conditions of emulsion polymerization. The resulting encapsulated particles are usefully employed as catalysts, toners, pigments and diagnostic latexes that have magnetic characteristics.Type: GrantFiled: December 15, 1980Date of Patent: December 20, 1983Assignee: The Dow Chemical CompanyInventor: Jitka Solc nee Hajna
-
Patent number: 4414339Abstract: Low density compositions containing colloidal-size particulates of an ELM absorber such as Fe.sub.3 O.sub.4 and a particulate of an ELM attenuator such as carbonyl iron dispersed in a dielectric matrix such as a styrene/butyl acrylate copolymer provide improved absorption of electromagnetic radiations.Type: GrantFiled: March 15, 1982Date of Patent: November 8, 1983Assignee: The Dow Chemical CompanyInventors: Jitka Solc, Robert F. Harris
-
Patent number: 4413089Abstract: A dispersion of iron oxide pigments, selected according to particle size to avoid interference with desired properties is added to a polymerizable acrylic composition containing alumina trihydrate as filler. This mixture is cured to form a filled polymeric structure containing 15 to 80% by weight polymethyl methacrylate and 20 to 85% by weight alumina trihydrate with a pleasing uniform color, maintaining desired properties of machinability, translucency, and visual depth.Type: GrantFiled: March 10, 1982Date of Patent: November 1, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventors: Francis M. Gavin, Anne M. Kruglewicz
-
Patent number: 4406826Abstract: This invention relates to a heat curing process and to a solventless screen printable, heat curable conductive ink composition comprising(1) an ethylenically unsaturated member of the group consisting of(a) a liquid, ethylenically, unsaturated monomer, oligomer or prepolymer of the formula: ##STR1## wherein R is H or CH.sub.3, R.sub.1 is an organic moiety and n is at least 2,(b) a polythiol in combination with (a) supra,(c) a polythiol in combination with a liquid ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR2## wherein R.sub.2 is H or CH.sub.3, R.sub.3 is an organic moiety and n is at least 2, and(d) mixtures of (a), (b) and (c),(2) a thermal initiator, and(3) an electrically conductive material.Heating of the composition in a desired pattern on a substrate results in a printed electric circuit.Type: GrantFiled: March 5, 1981Date of Patent: September 27, 1983Assignee: W. R. Grace & Co.Inventors: Charles R. Morgan, Arthur D. Ketley
-
Patent number: 4401776Abstract: Polymerizable liquid synthetic resins, liquid reactive constituents of synthetic resins or liquid additives for plastics, in each case containing mineral fillers, are converted to dry, pourable mixtures by mixing with 0.25-5% by weight of a crystalline synthetic calcium silicate, which can be in diverse stages of hydration and has a high length/width ratio and width dimensions of less than 1 .mu.m, it being possible, by this means, to employ the resins not only as casting resins but also as compression moulding resins and adhesives. In addition, handling and processability are improved.Type: GrantFiled: February 23, 1981Date of Patent: August 30, 1983Assignee: Ciba-Geigy CorporationInventor: Kurt Munk
-
Patent number: 4376192Abstract: The invention provides a novel room temperature-curable organopolysiloxane composition useful as an adhesive or a sealing material with remarkably extended workable time owing to the delayed surface filming. The base component in the composition is a conventional diorganopolysiloxane terminated with hydroxy groups at both molecular chain ends admixed with several known ingredients such as a cross linking agent, curing catalyst, filler and the like. The most characteristic ingredient in the composition effective to achieve the above mentioned desired property is a 1,1,1-trimethyl-3-hydrocarbyl-3,3-di(acylamino)disiloxane which belongs to a novel class of organopolysiloxane compounds and method is described for the preparation of these siloxane compounds.Type: GrantFiled: March 15, 1982Date of Patent: March 8, 1983Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshio Takago, Masatoshi Arai, Takeo Inoue, Masami Terashima
-
Patent number: 4374949Abstract: Specific color imparting compounds, including pigments and catalysts are used to produce a polyester resin having a green color. The compounds are added during polymerization of the polymer and the resins produced can be utilized to make various containers or packages to hold liquids or solids.Type: GrantFiled: October 27, 1980Date of Patent: February 22, 1983Assignee: The Goodyear Tire & Rubber CompanyInventors: Fred L. Massey, Douglas D. Callander
-
Patent number: 4341842Abstract: A method of coating an automotive part with a room temperature vulcanizable silicone rubber composition comprising applying to the automotive part a thin layer of a composition comprising a silanol end-stopped polysiloxane polymer, an alkyl silicate as the cross-linking agent and as the catalyst a metal salt of a carboxylic acid. The automotive part can be a tail pipe resonator or a muffler. Such composition, which is a two-component or two package room-temperature vulcanizable silicone rubber composition can also be used to coat the underside of a car to protect it from corrosion.Type: GrantFiled: June 30, 1980Date of Patent: July 27, 1982Assignee: General Electric CompanyInventor: Warren R. Lampe