Two Or More -n-(c=x)n Groups Patents (Class 524/212)
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Patent number: 4863977Abstract: This invention provides hardenable compositions useful as construction media for a wide range of applications. Particular utility is found in the dental and medical arts where such compositions are highly suitable for the formation and construction of denture base, denture baseplates, denture liners, denture repair, custom trays, veneering for crowns and bridgework, artificial teeth, veneers and repair for natural teeth, and tooth restorative fillings. Such materials having improved impact strengths and elastic moduli when hardened are disclosed which include rubber-modified polymer.Type: GrantFiled: November 10, 1987Date of Patent: September 5, 1989Assignee: Dentsply Research & Development Corp.Inventors: Louis H Tateosian, W. Donald Wilson
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Patent number: 4849022Abstract: In the present invention, finely divided silica is treated with two types of organosilican compounds,(i) organosilicon compound having the general formula ##STR1## wherein R is a monovalent hydrocarbon group; n is an integer having a value of 0 to 10; and Q is an alkoxy group, halogen atom, or hydroxyl group, and(ii) organosilicon compound having the general formula(R.sub.3 Si).sub.a --Zwherein R is a monovalent hydrocarbon group; a is 1 or 2; when a equals 1, Z is a hydrogen atom, halogen atom, hydroxyl group, alkoxy group, --NR.sup.1.sub.2, --ONR.sup.1.sub.2, or --OCOR.sup.1 ; when a equals 2, Z is --O--or --NR.sup.1 --; and R.sup.1 is the hydrogen atom or an alkyl group.The present invention characteristically affords a finely divided silica which has a high degree of surface treatment, which provides an elevated thixotropy when mixed with organopolysiloxane, and which provides stability in long-term storage.Type: GrantFiled: October 11, 1988Date of Patent: July 18, 1989Assignee: Toray Silicone Co., Ltd.Inventors: Hideki Kobayashi, Masayuki Ohnishi
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Patent number: 4839406Abstract: A fluidity controlling agent for paints is provided which comprises a product obtained by reacting paratoluidine and hexamethylene diisocyanate at a particular equivalent ratio (NH.sub.2 NCO) and gives thixotropic properties to the paint without sagging at a large coating film thickness.Type: GrantFiled: September 14, 1987Date of Patent: June 13, 1989Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Osamu Nagura, Osamu Inoue, Yoshimasa Kamikuri, Norikazu Takizuka
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Patent number: 4798849Abstract: An organic bulk polymer is disclosed having microscopically dispersed therein a liquid crystalline polymer in an amount sufficient to measurably improve the properties of the organic polymer relative to a like bulk polymer in the absence of the liquid crystalline polymer.Type: GrantFiled: October 16, 1987Date of Patent: January 17, 1989Assignee: The Dow Chemical CompanyInventors: Oomman P. Thomas, Robert B. Turner
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Patent number: 4745135Abstract: Polyurethanes are prepared from a polyol which itselve contains liquid crystalline moieties or which contains dispersed or dissolved liquid crystalline polymers. The use of this polyol is found to provide improved properties to polyurethanes, especially flexible polyurethane foams, which exhibit improved load bearing.Type: GrantFiled: July 14, 1987Date of Patent: May 17, 1988Assignee: The Dow Chemical CompanyInventors: Oomman P. Thomas, Robert B. Turner
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Patent number: 4745136Abstract: A solution or colloidal dispersion of a polymer of an ethylenically unsaturated steroid derivative in an active hydrogen-containing compound is claimed. The polymer provides improved physical properties to a polyurethane made by reacting the solution or dispersion with an polyisocyanate.Type: GrantFiled: July 14, 1987Date of Patent: May 17, 1988Assignee: The Dow Chemical CompanyInventors: Oomman P. Thomas, Robert B. Turner
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Patent number: 4716182Abstract: The present invention relates to cold setting compositions of (A) suspensions of solid polyisocyanates with retarded reactivity in aliphatic polyamines, and which are stable under storage due to a polyadduct covering, and (B) polyols and/or water. The activation of the composition is caused by the polyol or water. Additional activating materials can also be added for hardening. Such compositions, which already harden at ambient temperature, are stable under storage, have a long potlife for processing and, in relation to the potlife, have a very short hardening time to the final reaction product.Type: GrantFiled: July 29, 1986Date of Patent: December 29, 1987Assignee: Bayer AktiengesellschaftInventors: Heinrich Hess, Gerhard Grogler, Richard Kopp
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Patent number: 4704428Abstract: The invention is directed to silylalkyl and silylaralkyl substituted cyclopentadienes which have a hydrolyzable group attached to the silicone atom, a process for their production and peroxide cross-linkable synthetic resin and rubber mixtures containing them.Type: GrantFiled: November 21, 1986Date of Patent: November 3, 1987Assignee: Degussa AktiengesellschaftInventors: Ulrich Deschler, Peter Panster, Peter Kleinschmit, Siegfried Wolff, Ewe-Hong Tan
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Patent number: 4650903Abstract: Oligomeric amides having the general structure ##STR1## are useful as stabilizers for polymers and are prepared in a one-step synthesis by reacting a suitable amine with an appropriate ketone and chloroform.Type: GrantFiled: June 21, 1984Date of Patent: March 17, 1987Assignee: The BF Goodrich CompanyInventors: Pyong-Nae Son, John T. Lai
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Patent number: 4571413Abstract: A curable phenolic resin composition comprising (A) a major proportion of an aqueous phenolic resole resin and (B) a minor proportion of a poly(1,2-alkylene oxide) having terminating groups selected from the group comprising --NH.sub.2, --CONH.sub.2, --CH.CO.NH.sub.2 and --OCONH.sub.2 groups. The compositions are preferably cured with an acid catalyst and post cured at an elevated temperature.Type: GrantFiled: February 12, 1985Date of Patent: February 18, 1986Assignee: The British Petroleum Company p.l.c.Inventors: John G. Dolden, Sidney G. Fogg, Werner A. Lidy
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Patent number: 4514524Abstract: Flexible, resilient, polyurethane foam having improved flame retardancy and intumescent properties is prepared from the reaction of polyether polyol with organic isocyanate and an additive combination comprising: (i) a polyester polyol, (ii) an halogenated flame retardant, and (iii) water or alcohol soluble urea-formaldehyde resin.Type: GrantFiled: July 13, 1984Date of Patent: April 30, 1985Assignee: Stauffer Chemical CompanyInventor: Gerald Fesman
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Patent number: 4482655Abstract: According to the present invention a composition of matter is provided comprising the reaction product of a comminuted inorganic material and a substituted succinic anhydride having the formula: ##STR1## wherein at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is a substituent selected from alkyl, alkenyl, alkynyl or aralkyl group having from 1 to about 30 carbon atoms or a substituted derivative thereof, and the remaining substituents are hydrogens. The substituent may be saturated or unsaturated, linear or branched, and may have from 1 to about 10 substitutions including halogen, tertiary amino, tertiary amide, ketal, episulfide, sulfonate, phosphonate, imide, carboxylate, carbonate, isocyanate, silane, epoxy, cyano, ether, thioether, carbonyl, aromatic nitro, or acetal. In a particular molecule, all of the R.sub.1, R.sub.2, R.sub.3 and R.sub.4 groups may be the same or different, so long as they fall within the above class.Type: GrantFiled: August 26, 1981Date of Patent: November 13, 1984Assignee: Milliken Research CorporationInventor: Michael E. Wilson
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Patent number: 4482664Abstract: Dispersions of finely divided synthetic resins in plasticizers, optionally with pigments, fillers and further auxiliaries, contain 0.01 to 30% by weight, relative to the total weight of synthetic resin and plasticizer, of an isocyanate-free reaction product of a monoamine, if appropriate combined with a polyamine compound, with a monoisocyanate and/or polyisocyanate or a polyamine compound with a monoisocyanate, if appropriate combined with a polyisocyanate.Type: GrantFiled: September 23, 1982Date of Patent: November 13, 1984Assignee: BASF Farben & Fasern AGInventors: Rainer Blum, August Lehner, Bernhard Rubbert
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Patent number: 4440884Abstract: An aqueous adhesive, resistant to humidity and water, which debonds in the presence of strong base, comprises finely divided aluminum, a natural product bonding agent and water.Type: GrantFiled: October 20, 1982Date of Patent: April 3, 1984Assignee: H. B. Fuller CompanyInventor: Leonard C. Jannusch
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Patent number: 4405751Abstract: Aminoplastic resin dispersions which are stable to sedimentation are obtained by condensation of aldehydes with aminoplastic resin formers in an aqueous medium, in the presence of water-soluble compounds of the formulaR--X--(A--O).sub.m --B--NHCONH--Y].sub.nhaving the substituent meanings mentioned in the description. The condensation is preferably carried out in the presence of dyestuffs or optical brighteners which have groups capable of condensation. The dispersions obtained thereby are particularly suitable for whitening the coating compositions used in the paper industry, and for coating paper, wood, films and textile materials.Type: GrantFiled: March 8, 1982Date of Patent: September 20, 1983Assignee: Bayer AktiengesellschaftInventors: Hanns P. Muller, Kuno Wagner, Peter Mummenhoff, Gottfried Wallpott, Karlheinz Scheuss
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Patent number: 4385141Abstract: This invention relates to hot melt adhesive compositions which include a neutralized sulfonated 1,2-syndiotactic polybutadiene resin which has about 5 to about 25 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated 1,2-syndiotactic polybutadiene, and about 25 to about 250 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, having about 5 to about 6 carbon atoms the hydrocarbon resin being composed of aliphatic dienes and monoolefins per 100 parts by weight of the neutralized sulfonated 1,2-syndiotactic polybutadiene polymer.Type: GrantFiled: November 20, 1981Date of Patent: May 24, 1983Assignee: Exxon Research and Engineering Co.Inventors: Pawan K. Agarwal, Warren A. Thaler
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Patent number: 4383068Abstract: A thixotropic coating agent, more especially a binder or coating composition, based on a mixtrue of conventional binder-containing systems, optionally in admixture with liquid solvents or diluents, and a thixotropizing agent containing urea groups, wherein the thixotropizing agent is, in part at least, a urea adduct obtained by reacting (a) primary and, optionally, secondary polyamines, (b) monoisocyanate compounds and, optionally, (c) diisocyanate compounds in the presence of at least part of the binder.Type: GrantFiled: January 15, 1979Date of Patent: May 10, 1983Assignee: August Merckens Nachfolger KommanditgesellschaftInventor: Dieter Brandt
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Patent number: 4318844Abstract: An inorganic pigment exhibiting improved gloss and distribution in lacquer binders, carrying a coating comprising a polyhydrogen siloxane and an alkanolamine. Advantageously the alkanolamine comprises at least one of triethanolamine, triisopropanolamine, diethanolamine, diisopropanolamine and 2-amino-2-methyl-propanol-1, the polyhydrogen siloxane is a polymethylhydrogen siloxane having more than 5 Si atoms, and the pigment comprises TiO.sub.2 or a titanate carrying an inorganic coating, the polyhydrogen siloxane plus alkanolamine ranging from about 0.3 to 1% by weight of the pigment and the ratio by weight of the polyhydrogen siloxane to alkanolamine ranging from about 1:2 to 1:5.Type: GrantFiled: June 16, 1980Date of Patent: March 9, 1982Assignee: Bayer AktiengesellschaftInventors: Klaus Kohler, Peter Woditsch, Heribert Stutgens, Eckhard Bayer, Klaus Nollen, Hans Sander