Derived From Carboxylic Acid Or Derivative Patents (Class 524/5)
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Patent number: 5211949Abstract: Free flowing, conformable powder-like mix of silica particles and a phase change material (p.c.m.) is disclosed. The silica particles have a critical size of about 7.times.10.sup.-3 to about 7.times.10.sup.-2 microns and the pcm must be added to the silica in an amount of 80 wt. % or less pcm per combined weight of silica and pcm. The powder-like mix can be used in tableware items, medical wraps, tree wraps, garments, quilts and blankets, and in cementitious compositions of the type in which it is beneficial to use a pcm material. The silica-pcm mix can also be admixed with soil to provide a soil warming effect and placed about a tree, flower, or shrub.Type: GrantFiled: February 18, 1992Date of Patent: May 18, 1993Assignee: University of DaytonInventor: Ival O. Salyer
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Patent number: 5185389Abstract: A modified mortar or concrete composition in which a polymeric binding material is combined with sand, cement, and fine fillers. Use of the higher than previously considered functional ratio of latex binding material to cement permits the resulting mortar or concrete composition to increase the percentage of fine fillers, and reduces the amount of voids as a result of less water loss. The latex material partially fills the voids becoming a part of the structure of the system. This leads to a higher degree of flexibility and coherence of the system.Type: GrantFiled: July 1, 1991Date of Patent: February 9, 1993Assignee: GemEng, Ltd.Inventor: Riley Victor
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Patent number: 5182343Abstract: A conjugated diene sulfonation product represented by the formula (I): ##STR1## wherein R.sup.1 to R.sup.6, which may be the same or different, represent hydrogen atoms, alkyl groups having 1 to 8 carbon atoms, aryl groups having 6 to 20 carbon atoms or --SO.sub.3 X groups (X represents a hydrogen atom, a metal atom, an ammonium group or a quaternary ammonium group), at least one of said R.sup.1 to R.sup.6 being the --SO.sub.3 X group, a polymer of the conjugated diene sulfonation product or a copolymer of the conjugated diene sulfonation product with a monomer copolymerizable therewith. The sulfonation product, the polymer and the copolymer are useful as a dispersing agent for preparing a solid fuel dispersion, a cement dispersion, a dye and/or pigment dispersion or a metal oxide dispersion or as a water-treating agent, a fiber-treating agent, a plating bath additive and an excavation-muddy water-viscosity-adjusting agent.Type: GrantFiled: December 26, 1990Date of Patent: January 26, 1993Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hisao Ono, Katsumi Ito, Tatuo Uekawa, Katsuhiro Ishikawa
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Patent number: 5179170Abstract: The dispersant composed of a water-soluble salt of either a copolymer of a component in naphtha oil and maleic anhydride or a partial esterification product of said copolymer has improved dispersing ability and the dispersion containing this dispersant will experience only small changes with time.The cement admixture which is a salt of a copolymer of a component in naphtha oil and an unsaturated dicarboxylic acid anhydride or which has further contains a salt of the product of condensation between formaldehyde and a sulfonated aromatic hydrocarbon containing oil is an effective plasticizer and the cement mix incorporating this admixture has a satisfactory initial flow and will experience only small decrease in flowability over time.Type: GrantFiled: June 30, 1989Date of Patent: January 12, 1993Assignee: Kawasaki Steel CorporationInventors: Kimiyo Ohtsu, Norihide Enomoto, Yoshihiro Naruse, Masato Takagi, Keiji Sugiura
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Patent number: 5164431Abstract: Provided is a process for producing molded articles having excellent flexural strength, flexibility and dimensional stability, which comprises autoclave-curing at not lower than 100.degree. C. an aqueous composition comprising a hydraulic material (A) and a polyvinyl alcohol (B) powder, said polyvinyl alcohol (B) powder being contained in an amount of 0.1 to 20% by weight based on the weight of said hydraulic material (A).Also provided are molded articles comprising a hydraulic material (A) and a polyvinyl alcohol (B), said polyvinyl alcohol (B) being contained in an amount of 0.1 to 20% by weight based on the weight of said hydraulic material (A), said molded article having a structure comprising said polyvinyl alcohol (B) having once dissolved and then solidified being dispersed therein in the form of islands. These molded articles have excellent flexural strength, flexibility and dimensional stability.Type: GrantFiled: December 6, 1990Date of Patent: November 17, 1992Assignee: Kuraray Co., Ltd.Inventors: Akio Mizobe, Kenji Saimen, Sotaro Itadani, Ken Yuki
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Patent number: 5162402Abstract: A polymeric composition which reduces the loss of flowability of a cementitious composition comprises at least one polymer as a salt thereof having the form of a copolymer of(a) a maleic anhydride half-ester with a compound of the formula IRO(AO).sub.m H (I)where R is a C.sub.1-20 alkyl group, A is a C.sub.2-4 alkylene group and m is an integer from 2-16; and(b) a monomer having the formula IICH.sub.2 .dbd.CHCH.sub.2 -(OA).sub.n OR (II)where n is an integer from 1-90.In a preferred embodiment, there is present a polycarboxylate salt which is at least one polymer or copolymer comprising at least one of the monomers acrylic acid, methacrylic acid, maleic anhydride, maleic acid and maleic acid monoester, polymer and polycarboxylate salt being blended in the proportion of 0.1-10 parts of weight of polymer per part of polycarboxylate salt.Cementitious compositions such as concrete in which such polymeric compositions are included maintain their slump properties.Type: GrantFiled: November 4, 1991Date of Patent: November 10, 1992Assignee: Sandoz Ltd.Inventors: Hideo Ogawa, Yoshio Tanaka, Tadashi Tsuchitani
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Patent number: 5158996Abstract: The invention relates to organic copolymers in free acid or salt form with recurring units of formula I ##STR1## in which R is an alkylene radical with 2 to 6 carbon atoms,R.sub.1 is a C.sub.1-20 alkyl-, cycloalkyl- or phenyl group,x, y and z are numbers from 0.01 to 100,m is a number from 1 to 100 andn is a number from 10 to 100,with the provisos, thati) the ratio of x to (y+z) is from 1:10 to 10:1 inclusive,ii) the ratio of z to y is from 3:1 to 100:1, andiii) m+n=15-100.The products of the invention are excellent superplasticizers and can be used as additives to cementitious mixes.Type: GrantFiled: September 27, 1990Date of Patent: October 27, 1992Assignee: Sandoz Ltd.Inventor: Salvatore Valenti
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Patent number: 5153241Abstract: Composite materials based celluyloses grafted with titanium coupling agents reinforce polymeric resins, cement and gypsum. Processes for preparing said composites are disclosed.Type: GrantFiled: August 8, 1988Date of Patent: October 6, 1992Inventor: Alphons D. Beshay
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Patent number: 5147904Abstract: Open-pored moldings containing the product of the foaming and setting of (a) an aluminum fluorosilicate glass, (b) at least one polycarboxylic acid with an average molecular weight of >500, (c) a foaming agent, other than carbonates and/or hydrogen-carbonates, (d) optionally a chelating agent and (e) water, are suitable in particular as bone substitute material.Production is carried out by homogeneously mixing (a), (b), (c), optionally (d), and (e), then foaming, shaping and setting.Type: GrantFiled: August 22, 1990Date of Patent: September 15, 1992Assignee: Thera Patent GmbH & Co. KGInventors: Peter Jochum, Oswald Gasser, Manfred Holupirek, Erich Wanek, Rainer Guggenberger, Klaus-Peter Stefan, Klaus Ellrich
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Patent number: 5143952Abstract: A composite, molded article is prepared by forming a W/O emulsion containing a vinyl monomer, water, a cement, a polymerization initiator and an emulsifier, followed by molding and hardening. The emulsifier includes a neutralization product of an amide-containing amine with an organic sulfonic acid or an organic acid phosphate. The amide-containing amine is a condensation product obtained by reacting a fatty acid having 8-24 carbon atoms with an amino compound having the general formula (I) or (II):R.sup.1 R.sup.2 N[(CH.sub.2).sub.x --NH].sub.y H (I)R.sup.3 N[(CH.sub.2).sub.z NH.sub.2 ].sub.2 (II)wherein R.sup.1, R.sup.2, R.sup.3 each represent, independently from each other, hydrogen, an alkyl group haaving 1-24 carbon atoms or an alkenyl group having 1-24 carbon atoms, x is an integer of 1-4, y is an integer of 1-8 and z is an integer of 1-4.Type: GrantFiled: September 27, 1991Date of Patent: September 1, 1992Assignees: Okura Industrial Co., Ltd., Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Takasi Saheki, Hideaki Matsuda, Kinya Yokota, Tominobu Mayuzumi
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Patent number: 5137945Abstract: A cement dispersant having as a main component thereof at least one polymer selected from the group consisting of polymers obtained from (A) 0.1 to 100 mol % of a sulfonic acid type monomer represented by the formula I: ##STR1## wherein R stands for hydrogen atom or methyl group, X stands for hydrogen atom, a monovalent metallic atom, a divalent metallic atom, ammonium group, or an organic amine group, A and B independently stand for an alkylene group of 2 to 4 carbon atoms, m stands for 0 or an integer of the value of 1 to 100, and the alkylene oxide group of 2 to 4 carbon atoms in the portion, (AO).sub.m may be bound in any desired sequence, and (B) 99.9 to 0 mol % of olther monomer copolymerizable with said sulfonic acid type monomer, and polymers obtained by neutralizing said polymers with an alkaline substance, a cement composition containing the dispersant and a method for dispersing a cement.Type: GrantFiled: May 2, 1990Date of Patent: August 11, 1992Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Tsuneo Tsubakimoto, Hideyuki Tahara, Hiroya Kobayashi, Tsuyoshi Hirata, Hiroshi Ito
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Patent number: 5137577Abstract: An additive to cement comprises a granular zinc salt of a copolymer of an olefin having 2 to 8 carbon atoms and an ethylenically unsaturated dicarboxylic anhydride, prepared by reacting the powder of the copolymer with powder of zinc oxide or zinc hydroxide in the presence of water.Type: GrantFiled: March 26, 1991Date of Patent: August 11, 1992Assignee: Kao CorporationInventors: Masanori Iizuka, Tatsuya Mizunuma, Fuzio Yamato, Toshiharu Kojima, Akitoshi Tuji
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Patent number: 5118751Abstract: The invention relates to a redispersible powder composition comprisinga) a base polymer from the group comprising vinyl ester polymers, styrene polymers, acrylate polymers and vinyl chloride polymers,b) 2 to 15% by weight, relative to the base polymer, of polyvinyl alcohol having a degree of hydrolysis of 85 to 94 mol % and a Hoppler viscosity of 2 to 25 mPa.multidot.s,c) 3 to 30% by weight, relative to the total weight of polymer components, of a fine antiblocking agent,d) 0.1 to 2% by weight, relative to the base polymer, of antifoams, which containse) 1 to 8% by weight, relative to the base polymer, of a fully hydrolyzed 1-alkylvinyl ester/vinyl ester copolymer having a Hoppler viscosity of 1 to 5 mPa.multidot.s. The redispersible composition according to the invention is suitable in particular for use in flowing, hydraulically setting leveling compounds.Type: GrantFiled: August 23, 1991Date of Patent: June 2, 1992Assignee: Wacker Chemie GmbHInventors: Joachim Schulze, Hardy Herold, Juergen Hinterwinkler
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Patent number: 5112603Abstract: The present invention relates to compositions useful as thickening agents for aqueous systems. More particularly, it relates to compositions comprising smectite clays and cationic polymers.Type: GrantFiled: December 30, 1988Date of Patent: May 12, 1992Assignee: Miranol Inc.Inventors: Richard J. Nadolsky, Joseph M. Laryea
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Patent number: 5106520Abstract: Free flowing, conformable powder-like mix of silica particles and a phase change material (p.c.m.) is disclosed. The silica particles have a critical size of about 7.times.10.sup.-3 to about 7.times.10.sup.-2 microns and the pcm must be added to the silica in an amount of 80 wt. % or less pcm per combined weight of silica and pcm. The powder-like mix can be used in tableware items, medical wraps, tree wraps, garments, quilts and blankets, and in cementitious compositions of the type in which it is beneficial to use a pcm material. The silica-pcm mix can also be admixed with soil to provide a soil warming effect and placed about a tree, flower, or shrub.Type: GrantFiled: January 9, 1990Date of Patent: April 21, 1992Assignee: The University of DaytonInventor: Ival O. Salyer
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Patent number: 5098777Abstract: A compressed non-asbestos sheet is formed with a body between starter and finish layers. The body has novaloid and aramid fibers in an amount more than 5% and less than 25% by weight of the total sheet. The body also includes elastomeric binders, fillers and rubber processing chemicals. The starter and finish layers include aramid fibers, elastomeric binders with a release agent, fillers and rubber processing chemicals.Type: GrantFiled: October 1, 1990Date of Patent: March 24, 1992Assignee: Durable Canada Ltd.Inventor: Vasant M. Koli
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Patent number: 5092933Abstract: Concrete/mortar is manufactured with a small amount of water by using a dry clathrate water mixture. The dry clathrate water is used in a state wherein the water is impregnated into a water absorbent polymer.Type: GrantFiled: March 18, 1991Date of Patent: March 3, 1992Assignees: Mitsui Kensetsu Kabushiki Kaisha, Shiiai Kemutekku Kabushiki Kaisha, Oosaka Yuuki Kagaku Kogyo Kabushiki KaishaInventors: Tadashi Okamoto, Toru Sato, Taiji Kanbayashi, Chuzo Kato
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Patent number: 5079277Abstract: A glass ionomer cement composition comprises poly(vinyl phosphonic acid) dissolved in its own mass of water; and (in treble the total mass of the solution) a powder, being glass or MgO or a cermet. The powder has to be deactivated so that the setting reaction with the acid is not too fast, and this is achieved either by a raised Si:Al ratio or by heat-treating.Type: GrantFiled: April 27, 1989Date of Patent: January 7, 1992Assignee: National Research Development CorporationInventors: Alan D. Wilson, John Ellis
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Patent number: 5075358Abstract: A latex modified mortar or concrete material in which a polymeric or latex binding material is combined with a low shrinkage (gypsum) cement and fine fillers. Use of the low shrinkage cement and a higher than previously considered functional ratio of latex binding material to low shrinkage cement permits the resulting patching composition to obtain unexpectedly good adhesion, reduced cracking tendencies, dimensional stability, and flexibility required while maintaining enhanced strength properties. The polymeric binding material may be either an elastomeric or a thermoplastic latex.Type: GrantFiled: January 3, 1990Date of Patent: December 24, 1991Inventors: Victor Riley, Krishnamurthy Muralidharan
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Patent number: 5069721Abstract: Disclosed is a mortar.concrete composition comprising a polymer emulsion, a portland cement material and an aggregate, which is characterized in that the polymer emulsion is one prepared by neutralizing a seed polymer with an acid or a salt or by quaternizing it with a quaternizing agent, the surfaces of the emulsion grains being thereby highly densely cationated, where the seed polymer is formed by adding a monomer as represented by the following formula (I) or a mixture of the monomer (I) and copolymerizable ethylenic unsaturated monomer(s) to a seed latex of a carboxyl-modified synthetic rubber latex or synthetic resin emulsion and polymerizing them: ##STR1## The polymer of the invention may noticeably reinforce the strength of the shaped product even when the amount of the polymer added is small.Type: GrantFiled: March 22, 1990Date of Patent: December 3, 1991Assignee: Mitsui-Cyanamid, Ltd.Inventors: Akira Tamura, Naotaka Watanabe, Hitoshi Fujiyoshi, Masako Shirota
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Patent number: 5051453Abstract: Disclosed in a cement composition comprising an unsaturated carboxylic acid polymer and an alkaline earth metal aluminofluorosilicate glass, wherein the alkaline earth metal aluminofluorosilicate glass comprises (a) 50 to 95% by weight of coarse particles having a spherical shape and an F/Si ratio of at least 0.1 but lower than 0.6 and having a particle size larger than 3 .mu.m but not larger than 50 .mu.m and (b) 5 to 50% by weight of fine particles having an F/Si ratio of 0.6 to 5 and a particle size of up to 3 .mu.m.This cement composition gives a cured body having a good surface gloss and a high strength, and this cement composition has a good flowability and a good workability. Accordingly, the cement composition is valuable as a dental cement composition.Type: GrantFiled: January 31, 1989Date of Patent: September 24, 1991Assignee: Tokuyama Soda Kabushiki KaishaInventors: Minahiro Okabayashi, Hideki Ohno, Koshi Kusumoto
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Patent number: 5049288Abstract: Set retarded cement compositions for cementing across a zone or zones in a well having enhanced compressive strength and rapid gel strength development after placement. The cement compositions are comprised of hydraulic cement, sufficient fresh water to form a pumpable slurry, a set retarder comprising a copolymer of 2-acrylamido, 2-methylpropane sulfonic acid and acrylic acid having a average molecular weight below about 5000 and any other desired additives. Methods of cementing utilizing the cement composition also are provided.Type: GrantFiled: April 23, 1991Date of Patent: September 17, 1991Assignee: Halliburton CompanyInventors: Lance E. Brothers, Donald W. Lindsey, Dralen T. Terry
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Patent number: 5041475Abstract: A shaped article of gypsum possessing heretofore unattainable high strength, a method for the production of the shaped article, and a method for the production of inclusion water indispensable to the hardening by hydration of the production of the shaped article of gypsum are disclosed.Type: GrantFiled: November 21, 1990Date of Patent: August 20, 1991Assignee: Osaka Yuki Kagaku Kogyo Kabushiki KaishaInventors: Taiji Kambayashi, Hideyuki Mekata, Hiroyuki Kataoka, Chuzo Kato
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Patent number: 5030282Abstract: A carbon fiber-reinforced cementitious composite having high strength, which comprises continuous carbon fibers and a cured cement composition, comprising cement particles having an average particle size up to about the average diameter of the carbon fibers, the cured cement composition being substantially interposed between the individual carbon fibers; and a method for producing it.Type: GrantFiled: July 10, 1989Date of Patent: July 9, 1991Assignees: Toho Rayon Co., Ltd., Taisei CorporationInventors: Toshikazu Matsuhashi, Kuniomi Suzuki, Kazuhisa Saito, Hiroyasu Ogawa, Masahide Aga, Teruo Yamamiya, Kenji Sugimoto, Yutaka Tsuruta
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Patent number: 5028341Abstract: An additive for well servicing fluids containing a partially hydrolyzed acrylamide for use in downhole environments having a high calcium ion content comprising an alkali metal bicarbonate, a water-soluble carboxylic acid and a copolymer of acrylamide, an acrylic acid and 2-acrylamido-2-methylpropanesulfonic acid, the additive being used to formulate aqueous well servicing fluids, particularly drilling fluids, and for a method of treating an aqueous well servicing fluid containing partially hydrolyzed acrylamide to prevent unwanted reactions between calcium ions and the partially hydrolyzed polyacrylamide.Type: GrantFiled: December 31, 1990Date of Patent: July 2, 1991Assignee: Baroid Technology, Inc.Inventor: Andrew Liao
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Patent number: 5025040Abstract: A cementing composition useful in cementing oil, gas and water wells, comprising water, hydraulic cement and an effective amount of water soluble fluid loss additive comprised of a blend of a copolymer of acrylamide/vinyl imidazole in a weight percent ratio of from about 95:5 to 5:95, said copolymer having a molecular weight range of from about 100,000 to 3,000,000, and a terpolymer of acrylamide/acrylamidomethylpropane sulfonic acid sodium salt/vinyl imidazole in a weight percent ratio of 60:20:20, said terpolymer having a molecular weight range of from about 100,000 to 3,000,000. The blend is comprised of a weight percent ratio of copolymer to terpolymer in the range of 20:80 to 80:20. The composition can also optionally include a dispersant such as sodium or potassium salts or a sulfonated naphthalene formaldehyde condensate.Type: GrantFiled: June 11, 1990Date of Patent: June 18, 1991Assignee: BASFInventors: Stefano C. Crema, Clare H. Kucera, Gerd Konrad, Heinrich Hartmann
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Patent number: 5021093Abstract: Composite materials based on cement or gypsum materials reinforced by mixing with cellulosic fibers grafted with silylating agents. Processes for preparing these reinforced composites are also disclosed.Type: GrantFiled: June 9, 1988Date of Patent: June 4, 1991Inventor: Alphons D. Beshay
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Patent number: 4970246Abstract: A slurry having an aqueous liquid and dispersed solids may be vacuum filled into an acetylene storage container and indurated to yield a lime-silica matrix with a porosity between about 88 percent to 92 percent. The matrix includes a mixture of aromatic polyamide fibers and oxidized polyacrylonitrile fibers. At least some of these fibers are fibrillated and the fibers are in an amount of about 3.8 wt. % to about 12 wt. % matrix.Type: GrantFiled: November 1, 1988Date of Patent: November 13, 1990Assignee: Coyne Cylinder CompanyInventors: Paul S. O'Neal, Michael C. Camp
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Patent number: 4968734Abstract: The present invention is directed to a copolymer of acrylic or methacrylic acid and a hydroxyalkyl acrylate or methacrylate, to cement admixture compositions containing said polymer and to hydraulic cement compositions containing said admixture. The copolymer is composed of from 20 to 40 mole percent of an alkali metal salt of acrylic or methacrylic acid either as the free acid or as their alkali or alkaline earth metal salt and from 60 to 80 mole percent of hydroxyalkyl acrylate or methacrylate; said polymer having a weight average molecular weight of at least 70,000.Type: GrantFiled: August 20, 1987Date of Patent: November 6, 1990Assignee: W. R. Grace & Co.-Conn.Inventors: James M. Gaidis, Joseph M. Daly
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Patent number: 4964913Abstract: Hydraulic substances reinforced with high tenacity acrylonitrile (AN) fibers and a process for production thereof are provided.The high tenacity AN fibers comprise AN polymers composed mainly of AN having an intrinsic viscosity of at least 2.5 and have an X-ray crystalline orientation of at least 93%, a tensile strength of at least 10 g/d, an initial modulus of at least 180 g/d, a contrast glossiness of at least 10% and a smooth surface.Hydraulic substances reinforced with the high tenacity AN fiber are produced by uniformly dispersing in water, a hydraulic substance and the high tenacity AN fibers having applied thereto nonionic or cationic high molecular flocculants, adding anionic high molecular flocculants thereto to flocculate and adsorb cement particles onto the surface of the AN fibers and, subjecting the resulting slurry to paper-making.Type: GrantFiled: April 14, 1989Date of Patent: October 23, 1990Assignee: Toray Industries, Inc.Inventors: Takashi Takada, Kenichi Hirao
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Patent number: 4963190Abstract: An aqueous dispersant composition for cement comprises 100 parts by weight of a copolymer of an olefin having 2 to 8 carbon atoms and an ethylenically unsaturated dicarboxylic anhydride, the copolymer being in the form of fine particles having an average size of 0.1 to 20 micrometers, 15 to 300 parts by weight, of zinc, as zinc oxide or zinc hydroxide, and water, the composition being adjusted to have a pH value of 6 to 12.Type: GrantFiled: March 17, 1989Date of Patent: October 16, 1990Assignee: Kao CorporationInventors: Tatsuya Mizunuma, Ryoichi Tamaki, Shoji Kanzaki, Yoshiaki Tanisho, Fuzio Yamato
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Patent number: 4956013Abstract: The present invention provides a refractory coating composition comprising:(i) 100 parts by weight of a hydraulic cement,(ii) 3 to 50 parts by weight of a re-emulsion type powdery resin,(iii) 50 to 600 parts by weight of a mixture of 15 to 85% by weight of aluminum hydroxide powder and 85 to 15% by weight of carbonate decomposable at a temperature of 300.degree. to 1000.degree. C., and(iv) 20 to 300 parts by weight of a lightweight aggregate having open cells at a ratio of at least 50% based on the total cells.Type: GrantFiled: June 7, 1988Date of Patent: September 11, 1990Assignee: Shikoku Kaken Kogyo Co., Ltd.Inventor: Hideo Motoki
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Patent number: 4956403Abstract: A pressure water absorption inhibitor for lightweight aggregates which comprises an aqueous dispersion of a polymeric substance having a viscosity which permits the aqueous dispersion to enter the fine pores in the surface layer of a lightweight aggregate and which dispersion is capable of being thickened to a viscosity of not less than 50 times the viscosity before thickening by elevation of the pH.Type: GrantFiled: November 2, 1987Date of Patent: September 11, 1990Assignees: Takenaka Komuten Co., Ltd., Sanyo Chemical Industries, Ltd.Inventors: Toshio Yonezawa, Takashi Iwashimizu, Yasuhiko Yoshioka, Koichi Ito, Kunio Sakaue, Tetsuo Nakase
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Patent number: 4946904Abstract: An additive for cement comprising, as the effective component, a copolymer of a polyoxyalkylene derivative represented by following formula (1) and maleic anhydride, a hydrolyzed product of the copolymer, or a salt of the hydrolyzed product; ##STR1## wherein Z represents a residue of a compound having a hydroxy group, said compound having from 2 to 8 carbon atoms; AO represents an oxyalkylene group having from 2 to 18 carbon atoms; X represents an unsaturated hydrocarbon group having from 2 to 5 carbon atoms or an unsaturated acyl group having from 2 to 5 carbon atoms; R represents hydrocarbon group having from 1 to 40 carbon atoms; a represents 0 to 1,000; b represents 0 to 1,000; c represents 0 to 1,000; l represents 1 to 7, m represents 0 to 2; and n represents 1 to 7; l+m+n=2 to 8, m/(l+n).ltoreq.1/2, and al+bm+cn.gtoreq.1.Type: GrantFiled: May 13, 1988Date of Patent: August 7, 1990Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Shin-ichi Akimoto, Susumu Honda, Tohru Yasukohchi
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Patent number: 4946505Abstract: Coloring materials used in a process of dyeing concrete consist of pigment granules other than compacted or briquetted granules. The granules consist of one or more pigments, one or more binders for promoting the dispersing of the pigments in the concrete, and optional other additives. Such pigment granules, particularly bead granules, will easily dissolve in the concrete mixer and will be homogeneously dispersed in the concrete.Type: GrantFiled: July 17, 1989Date of Patent: August 7, 1990Assignee: Chemische Werke Brockhues AGInventor: Axel E. Jungk
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Patent number: 4946725Abstract: A method of constructing an equipment pad and the resultant pad is disclosed. The method comprises the steps of providing a mold with fiberglass material laminated to the interior walls of the mold, providing a layer of polymer concrete in the base of the mold, covering the layer of concrete with a sheet of fiberglass material, covering the fiberglass material with an additional layer of polymer concrete, placing honeycomb material on the additional layer of concrete, filling selected cells of said honeycomb material with a polymer concrete, laminating a fiberglass sheet to the upper surface of the honeycomb material and sealing the upper sheet of fiberglass to the fiberglass laminated to the walls of the mold. The finished pad is then removed from the mold and inverted. If desired, an opening may be molded into the pad.Type: GrantFiled: August 4, 1988Date of Patent: August 7, 1990Assignee: Homac Mfg. CompanyInventor: Samuel P. Harlan
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Patent number: 4946506Abstract: An additive combination for hydraulic cement compositions is provided which advantageously provides corrosion inhibition and set acceleration, in combination with a high level of fluidity and retention of fluidity over a desired period of time. The cement additive combination comprises an alkali or alkaline earth metal nitrite and a graft copolymer plasticizer comprising a polyether backbone and side chain polymers formed by polymerization of ethylenically unsaturated monomers.Fluid hydraulic cement compositions are further provided comprising these additive combinations.Type: GrantFiled: September 7, 1989Date of Patent: August 7, 1990Assignee: W.R. Grace & Co.-Conn.Inventors: Ahmad Arfaei, Neal S. Berke, Michael P. Dallaire, Maria Hicks
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Patent number: 4941536Abstract: Set retarded cement compositions for cementing across a zone or zones in a well having enhanced compressive strength and rapid gel strength development after placement. The cement compositions are comprised of hydraulic cement, sufficient fresh water to form a pumpable slurry, a set retarder comprising a copolymer of 2-acrylamido, 2-methylpropane sulfonic acid and acrylic acid having an average molecular weight below about 5000 and any other desired additives. Methods of cementing utilizing the cement composition also are provided.Type: GrantFiled: June 27, 1989Date of Patent: July 17, 1990Assignee: Halliburton CompanyInventors: Lance E. Brothers, Donald W. Lindsey, Dralen T. Terry
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Patent number: 4939191Abstract: A cured cement article containing therein an organic polymer treated with an isocyanate compound has a high flexural strength and high water resistance. The cured cement can be prepared by impregnating a cured cement article containing therein a water-soluble polymer or a water-dispersible polymer with an isocyanate compound.Type: GrantFiled: February 17, 1988Date of Patent: July 3, 1990Assignee: UBE Industries, Ltd.Inventors: Nobuhiro Kataoka, Hideaki Igarashi, Masanori Ohshima
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Patent number: 4938803Abstract: A vinyl grafted lignite fluid loss additive comprising a lignite grafted with at least one vinyl monomer selected from the group consisting of: dimethylaminopropyl methacrylamide, methacrylamido propyltrimethyl ammonium chloride, N-vinylformamide, N-vinylacetamide, diallyl dimethyl ammonium chloride, and diallylamine. The vinyl monomer may also be blended with at least one co-monomer. Preferred co-monomers are: 2-acrylamido-2-methylpropanesulfonic acid, dimethylacrylamide, acrylamide, vinylpyrrolidone, vinylacetate, acrylonitrile, dimethylaminoethyl methacrylate, styrenesulfonate, vinylsulfonate, dimethylaminoethyl methacrylate methyl chloride quaternary, acrylic acid and its salts.Type: GrantFiled: July 5, 1989Date of Patent: July 3, 1990Assignee: Nalco Chemical CompanyInventors: David A. Huddleston, Charles D. Williamson
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Patent number: 4927866Abstract: A shapable material is disclosed which contains:(a) an aluminum fluorosilicate glass;(b) at least one polycarboxylic acid having an average molecular weight greater than 500;(c) a carbonate and/or hydrogen carbonate in an amount of at least 0.1% by weight, based on (a);(d) optionally a chelating agent; and(e) optionally water.Said material is especially suited as bone replacement material and can be shaped into porous articles.Type: GrantFiled: February 28, 1989Date of Patent: May 22, 1990Assignee: ESPE Stiftung & Co. Produktions- und Vertriebs KGInventors: Robert Purrmann, Rainer Guggenberger, Gunter Pieper
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Patent number: 4888059Abstract: A cement dispersing agent comprising as an essential component a copolymer obtained by copolymerizing (a) 40 to 90% by weight, calculated as an alpha,beta-ethylenically unsaturated carboxylic acid, of the alpha,beta-ethylenically unsaturated carboxylic acid and/or its salt and (b) 60 to 10% by weight of an acrylic ester and/or a methacrylic ester of an alkyl alcohol having 1 to 4 carbon atoms, or a copolymer obtained by copolymerizing (a) 40 to 89% by weight, calculated as an alpha,beta-ethylenically unsaturated carboxylic acid, of the alpha,beta-ethylenically unsaturated carboxylic acid and/or its salt, (b) 51 to 10% by weight of an acrylic ester and/or a methacrylic ester of an alkyl alcohol having 1 to 4 carbon atoms and (c) 1 to 9% by weight of the other copolymerizable unsaturated monomer.Type: GrantFiled: December 22, 1987Date of Patent: December 19, 1989Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Kouichi Yamaguchi, Tokio Goto
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Patent number: 4870120Abstract: A cement dispersant having as a main component thereof at least one polymer selected from the group consisting of polymers obtained from (A) 0.1 to 100 mol % of a sulfonic acid type monomer represented by the formula I: ##STR1## wherein R stands for hydrogen atom or methyl group, X stands for hydrogen atom, a monovalent metallic atom, a divalent metallic atom, ammonium group, or an organic amine group, A and B independently stand for an alkylene group of 2 to 4 carbon atoms, m stands for 0 or an integer of the value of 1 to 100, and the alkylene oxide group of 2 to 4 carbon atoms in the portion, (AO).sub.m may be bound in any desired sequence, and (B) 99.9 to 0 mol % of other monomer copolymerizable with said sulfonic acid type monomer, and polymers obtained by neutralizing said polymers with an alkaline substance, a cement composition containing the dispersant and a method for dispersing a cement.Type: GrantFiled: February 12, 1988Date of Patent: September 26, 1989Assignee: Nippon Shokubai Kagaku Co., Ltd.Inventors: Tsuneo Tsubakimoto, Hideyuki Tahara, Hiroya Kobayashi, Tsuyoshi Hirata, Hiroshi Ito
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Patent number: 4866109Abstract: The invention is specifically concerned with an improvement in the process of manufacturing reinforced materials. The reinforced materials are conceived to include a wide variety of materials, the most notable being high density compressed gaskets. The improvement comprises mixing a cut solid (generally a cut fiber) with a body material to produce the reinforced materials. The solid is cut into particulates of highly variable size, the range in the size of the particulates being adjusted to optimize the characteristics of the resulting reinforced material. The cut solid is produced utilizing comminuting machines previously used for the recycle of waste products.Type: GrantFiled: October 15, 1984Date of Patent: September 12, 1989Assignee: BASF CorporationInventors: Billy B. Hibbard, Joe A. Mann, Frans P. P. Koeleveld, Agnes K. Potepan, Richard E. White, Barry T. Knight, Howard H. Bryant
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Patent number: 4851456Abstract: A paste-like topcoat composition for surfaces comprising a dry mix material of sand, cement and a resinous binder. A liquid mix material comprising water, vinyl acrylates and a solvent for at least one of resinous binder and vinyl acrylates and/or methacrylates is mixed with the dry mix material to provide a topcoat composition that is particularly useful for asphalt surfaces. Other ingredients such as defoaming agents, preservatives, and fungicides can be included in the topcoat composition. A method for construction a topcoat is also provided.Type: GrantFiled: February 3, 1988Date of Patent: July 25, 1989Assignee: Neverwear CorporationInventor: Doyle E. Dean
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Patent number: 4846889Abstract: This invention is a polymer blend useful in thin-bed mortar compositions comprising a water-soluble cellulose ether and a water-insoluble, but water-dispersible, polymer. The water insoluble, but water-dispersible polymer can include an unneutralized polyacrylic acid that is lightly crosslinked or methylcellulose with a viscosity from about 50 cps to about 150,000 cps, provided the polymeric blend containing methylcellulose is employed in a medium that has a pH of about 12 or greater, although a pH of less than 12 is workable, but is dependent upon the methoxyl content of the methylcellulose. The polymeric blend extends the working time of the composition in which it is employed and because the blend has sag binding characteristics, it also functions as a sag resistance aid.Type: GrantFiled: February 2, 1988Date of Patent: July 11, 1989Assignee: The Dow Chemical CompanyInventor: Wilfred C. Meyer
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Patent number: 4842650Abstract: Various improvements for polymer modified cementitious compositions are disclosed. A dry mix for making a polymer modified cementitious composition especially useful as a stucco material, which includes a dry, redispersible, non-reemulsifiable polymer at a polymer-cement ratio of between about 0.04:1 to about 0.15:1, is disclosed. Also, the use of sodium acyl (coco) isethionate as a superior wetting agent in polymer modified cementitious composition is disclosed. In addition, the use of non-bridging, plastic fibers for use in pumpable cementitious compositions is disclosed.Type: GrantFiled: April 11, 1986Date of Patent: June 27, 1989Assignee: Sencon Systems IncorporatedInventor: Wayne J. Blounts
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Patent number: 4840672Abstract: Lightweight insulating boards in accordance with the present invention comprise Portland cement, fibers and fillers including:(a) 50-75% by weight of cement,(b) 0-5% by weight of cellulose fibers,(c) 0.5-4% by weight of alkali-resistant fiber material,(d) 5-20% by weight of mica,(e) 5-20% by weight of light filler and(f) 8-25% by weight of hydrated lime.They are shaped into boards from a suspension and are set at least 15 days, and preferably 28 days. The insulating boards of the present invention meet all of the requirements set for such materials regarding flexural strength, incombustibility, and the like.Type: GrantFiled: March 12, 1987Date of Patent: June 20, 1989Assignee: Redco N.V.Inventor: Emile Baes
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Patent number: 4828616Abstract: An aqueous surface treatment composition for forming a hydrophilic coating comprising: (a) alkali metal silicate, (b) aminoalcohol, and (c) a water-soluble resin selected from the group consisting of a water-soluble nylon, a natural polysaccharide and a water-soluble, natural protein, and/or a water-soluble silane coupling agent. This aqueous surface treatment composition is used to form a hydrophilic coating on an aluminum surface having a corrosion-resistant coating layer. The hydrophilic coating prepared from this composition has good hydrophilic nature and corrosion resistance with substantially no unacceptable odor.Type: GrantFiled: August 28, 1987Date of Patent: May 9, 1989Assignee: Nippon Paint Co., Ltd.Inventor: Katsuyoshi Yamasoe
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Patent number: 4828883Abstract: A method and material for protection from airborne asbestos and other particular contamination is disclosed that is useful for protecting the environment and individuals working therein as occurs at a job site when friable or cementitious asbestos containing coatings are being removed from existing structures. The method includes application of a combined wetting and encapsulation formula which bonds the asbestos fibers to materials in the formula so as to convert friable asbestos to non-friable asbestos and a hardening procedure and formula which places the bonded non-friable asbestos in a hardened mass so that it may be safely disposed of.Type: GrantFiled: April 22, 1987Date of Patent: May 9, 1989Assignee: Allied Gator, Inc.Inventor: John R. Ramun