With At Least One Nonaldehyde Phosphorus- Or Sulfur-containing Reactant Patents (Class 528/158)
  • Patent number: 4775737
    Abstract: A process for the preparation of a thermoset polymer having good adhesive properties comprising reacting a compound containing a plurality of oxazoline groups with an alkenyl phosphonic acid at a temperature of from about room temperature to about 300.degree. C. is described.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: October 4, 1988
    Assignee: Ashland Oil, Inc.
    Inventor: Anil B. Goel
  • Patent number: 4722991
    Abstract: A terpolymer is prepared from phenol, furfuryl alcohol and formaldehyde wherein a substantial amound of the furfuryl alcohol is catalytically reacted by means of a water soluble multivalent metal salt catalyst, and wherein the reaction is carried out under essentially hydrous conditions.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: February 2, 1988
    Assignee: Acme Resin Corporation
    Inventor: David R. Armbruster
  • Patent number: 4703103
    Abstract: Novel compositions comprising a high concentration of one or more extended chain homopolymer, copolymer, or block polymer and certain polyphosphoric acids are prepared under conditions to exercise control of molecular weight as characterized by intrinsic visoscity. Such compositions are optically anisotropic (liquid crystlaline), capable of exhibiting excellent cohesive strength, and are especially suited to the production of high molecular weight ordered polymer fibers by dry-jet wet spinning. These liquid crystalline compositions are capable of being drawn through long air gap distances and spun at excptionally high spin draw ratios. Fibers, films and other articles formed from these liquid crystalline compositions exhibit exceptionally high physical and heat resistant properties.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: October 27, 1987
    Assignee: CommTech International
    Inventors: James F. Wolfe, Paul D. Sybert
  • Patent number: 4680375
    Abstract: Tricarbocyanine polymeric dyes have formulae I and II: ##STR1## where Y can be ##STR2## --S--, --Se-- or --O--, A can be ##STR3## in which R.sup.19 can be alkyl or --Cl, and p can be 0 or 1, R.sup.6 and R.sup.7 independently can be alkyl of (C.sub.1 -C.sub.30), preferably (C.sub.1 -C.sub.18),R.sup.4 and R.sup.5 independently can be --H, C.sub.6 H.sub.5 SO.sub.2 --, or CF.sub.3 SO.sub.2 --,Z can be --SO.sub.2 --, --CH.sub.2).sub.m, or vinylene,W can be I.sup.-, Br.sup.-, Cl.sup.-, ClO.sub.4.sup.-, PECHS.sup.- (polyethylcyclohexylsulfonate), F.sub.3 CSO.sub.3.sup.- (trifluoromethanesulfonate), or other commonly used dye anions,m is an integer of 1 to 20, andn is an integer of 5 to 10,000.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: July 14, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Mohamed A. Elmasry
  • Patent number: 4675371
    Abstract: A process for the preparation of a thermoset polymer having good adhesive properties comprising reacting a compound containing a plurality of oxazoline groups with an alkenyl phosphonic acid at a temperature of from about room temperature to about 300.degree. C. is described.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: June 23, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: Anil B. Goel
  • Patent number: 4639496
    Abstract: Method for the manufacture of a polymer with triaromatic methane units as basic building blocks, the electric conductivity of which is obtained through the formation of charge transfer complexes. Electron donors and/or electron acceptors are added to the synthetic polymer during or after its preparation, for forming charge transfer complexes.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: January 27, 1987
    Assignee: Brown, Boveri & Cie AG
    Inventors: Gerd Weddigen, Robert Huber, Birgit Schmidt, Hartmut Schneider
  • Patent number: 4621123
    Abstract: Novel phosphorus-containing polyglycidyl ethers capable of forming a cured epoxy resin having a high flame retardancy and excellent in heat resistance characteristics such as heat deterioration resistance, glass transition temperature, thermal deformation temperature and the like; a process for producing said phosphorus-containing polyglycidyl ethers; phosphorus-containing polyphenol compounds used in production of said phosphorus-containing polyglycidyl ethers; and a process for producing said phosphorus-containing polyphenol compounds.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: November 4, 1986
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hisao Takagishi, Kazunori Kawakami, Kunimasa Kamio, Khoichi Okuno
  • Patent number: 4602069
    Abstract: A binder composition containing a phenolic resin, a polyisocyanate, a phosphorus based acid and optionally an acid halide and/or a base, and methods of making and using the same.
    Type: Grant
    Filed: April 11, 1984
    Date of Patent: July 22, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: William R. Dunnavant, John J. Gardikes, Heimo J. Langer
  • Patent number: 4587291
    Abstract: Binders are described based on acid curing phenol resins and acid curing agents which, after mixing, have an extended processability time but nevertheless exhibit a rapid curing time at relatively low temperatures. They are obtained by using, as the resin, aqueous phenol resols and, as the curing agent, either copper, aluminum, or iron(III) salts of aromatic sulfonic acids or addition products of hydroxy-containing, water-compatible polyols with aromatic sulfonic acids or mixtures of these salts and the polyol addition products. The binders are used for impregnation of fabrics, for production of abrasives and for fiber reinforced plastics.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: May 6, 1986
    Assignee: Rutgerswerke Aktiengesellschaft
    Inventors: Arno Gardziella, Karl-Heinz Schwieger, Peter Adolphs, Gerhard Grossmann
  • Patent number: 4578438
    Abstract: Water-dilutable resinous products are obtained by reacting(A) a resin having at least one phenolic hydroxyl group and a free position ortho and/or para to a phenolic hydroxyl group, and containing a residue formed by polymerization of a vinyl monomer in the resin or in a precursor thereof,(B) an aldehyde, and(C) sulphurous acid or an organic acid containing a primary or secondary amino group or a mercaptan group and a carboxylic, sulphonic or phosphonic acid group, or a water-soluble salt thereof.Aqueous compositions containing the resinous products and, if required, and aminoplast, a phenoplast or a blocked polyisocyanate, usually together with a minor amount of an organic solvent, are useful in the formation of surface coatings.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: March 25, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Christopher G. Demmer, Roderick D. Hathaway
  • Patent number: 4564466
    Abstract: Method for the manufacture of a polymer with triaromatic methane units as basic building blocks, the electric conductivity of which is obtained through the formation of charge transfer complexes. Electron donors and/or electron acceptors are added to the synthetic polymer during or after its preparation, for forming charge transfer complexes.
    Type: Grant
    Filed: December 21, 1983
    Date of Patent: January 14, 1986
    Assignee: Brown, Boveri & Cie AG
    Inventors: Gerd Weddigen, Robert Huber, Birgit Schmidt, Hartmut Schneider
  • Patent number: 4555544
    Abstract: In a process for hardening phenol-formaldehyde resol resins, comprising conducting the hardening of the resins with an acidic solution of water and/or an organic solvent having dissolved therein an aromatic sulphonic acid and/or concentrated sulphuric acid, the improvement comprising the hardening in the presence of aniline added to the phenolic resin beforehand in a quantity of between about 0.5 and 2% relative to the weight of the phenolic resin whereby the pot life is extended and the cure time is satisfactory, the resultant products being especially useful as prepegs.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: November 26, 1985
    Assignee: Societe Chimique des Charbonnages CDF Chimie, S.A.
    Inventors: Nicolas Meyer, Michel Cousin
  • Patent number: 4540724
    Abstract: A binder containing a phenolic resin; a polyisocyanate; a curing component, and a phosphorus halide and use thereof.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: September 10, 1985
    Assignee: Ashland Oil Inc.
    Inventors: William R. Dunnavant, John J. Gardikes, Heimo J. Langer
  • Patent number: 4454311
    Abstract: The invention provides a polycondensation product of(a) sulfamic acid (H.sub.2 N--SO.sub.3 H) and/or at least one N-substituted organic derivative of the sulfamic acid as such or in the form of their salts,(b) formaldehyde and/or glyoxal(c) melamine and/or at least one phenolic compound.This polycondensation product may be used as at least one component in a material for construction.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: June 12, 1984
    Assignee: Sika AG, vorm. Kaspar Winkler & Co.
    Inventors: Theodor Burge, Jurg Widmer, Theodor Meyer, Ulrich Sulser
  • Patent number: 4451623
    Abstract: Certain water-soluble substituted phenol formaldehyde type copolymers retain their viscosities in high brine environments and are highly useful as surfactant-mobility control agents in oil recovery processes.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: May 29, 1984
    Assignee: Mobil Oil Corporation
    Inventor: Catherine S. H. Chen
  • Patent number: 4430491
    Abstract: Thermoplastic and thermoset polymeric compositions, having particular utility in the area of molding applications, are obtained by reacting a compound containing a plurality of oxazoline groups with a phenol or a phenolic resin each containing a plurality of aromatic hydroxyl groups.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: February 7, 1984
    Assignee: Ashland Oil, Inc.
    Inventors: Billy M. Culbertson, Timothy A. Tufts
  • Patent number: 4410675
    Abstract: Resinous salts, prepared by thioalkylation or sulfoalkylation of a phenol obtained by advancement of a polyepoxide, followed by at least partial neutralization, have the general formula ##STR1## where R.sup.- represents a group of formula --S--R.sup.1 --COO.sup.- or a group of formula --SO.sub.3.sup.- ; R.sup.1 represents an aliphatic, aromatic or araliphatic divalent group which may contain a further group --COO.sup.- M.sup.+ ; R.sup.2 represents --H or alkyl; one of R.sup.3 and R.sub.1.sup.3 represents a hydroxyl group and the other represents --H, halogen, alkyl, or alkenyl; each R.sup.4 represents --H, halogen, alkyl, or alkenyl; R.sup.5 represents --H, halogen, alkyl, alkenyl, or a group --CH(R.sup.2)OH, --CH(R.sup.2)OR.sup.8, or --CHR.sup.2 --R.sup.- M.sup.+ ; R.sup.6 represents the residue of a polyepoxide, preferably of average mol. wt. 1000-5000; each of the groups R.sup.7, which may be the same or different, represents --H or a covalent bond linked to the group R.sup.6 ; R.sup.
    Type: Grant
    Filed: December 15, 1982
    Date of Patent: October 18, 1983
    Assignee: Ciba-Geigy Corporation
    Inventor: Christopher G. Demmer
  • Patent number: 4405738
    Abstract: Polyester polymers and copolyester polymers incorporating flame retardant amounts of cyclotri (or tetra) phosphazenes. These cyclotri (or tetra) phosphazenes can be added at the start of ester interchange, prior to, for example polycondensation and conventional melt spinning, or if desired, after polycondensation but before melt spinning. Specific examples of cyclotriphosphazenes and cyclotetraphosphazenes are hexa(dialkylphosphinylmethyleneoxy)cyclotriphosphazene, octa(dialkylphosphinylmethyleneoxy)cyclotetraphosphazene, tris(alkylphosphinyldimethyleneoxy)cyclotriphosphazene, tetra(alkylphosphinyldimethyleneoxy)cyclotetraphosphazene, hexa(dialkylphosphinylmethylene)cyclotriphosphazene, and octa(dialkylphosphinylmethylene)cyclotetraphosphazene.
    Type: Grant
    Filed: March 5, 1982
    Date of Patent: September 20, 1983
    Assignee: Akzona Incorporated
    Inventor: Gerald W. McNeely
  • Patent number: 4404334
    Abstract: The present invention comprises a new phenolic-aldehyde based resinous, thermosetting polyol and a method for its production. According to the invention, phenol is condensed using acid catalysis, under freely evaporative atmospheric conditions with a molar excess of aldehyde, in the presence of polyhydroxyl component.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: September 13, 1983
    Assignee: Georgia-Pacific Corporation
    Inventor: Leopold F. Bornstein
  • Patent number: 4390340
    Abstract: Mineral tanned leather is frequently retanned with synthetic tanning agents to improve the fullness and softness, but leather retanned by the prior art methods is difficult to dye in full shades with anionic dyes. According to the invention, condensation products of C.sub.1-4 aldehydes with certain aromatic sulfonic acids or carboxylic acids containing amino groups are employed for retanning, thereby improving the receptivity of the leather for anionic dyes. These acids have the general formula ##STR1## where X and X' are independently H, --CH.sub.2 --SO.sub.3 H or --CH.sub.2 --OH, A is a benzene radical, Y and Z are independently H, --SO.sub.3 H or --CO.sub.2 H, R is H or C.sub.1-4 -alkyl and n is from 0 to 10, with the proviso that at least one sulfonic acid or carboxyl group is present in the molecule.
    Type: Grant
    Filed: June 30, 1981
    Date of Patent: June 28, 1983
    Assignee: BASF Aktiengesellschaft
    Inventor: Dietrich Lach
  • Patent number: 4383104
    Abstract: The phenolic chelate resin has a chelate-forming group wherein part or all of the hydrogen atoms in a primary and/or secondary alkylamino group introduced in a phenol nucleus are replaced by a methylenephosphonate group. Also disclosed is a process for producing such a chelate resin, and a method for recovering heavy metal ions with such a resin. The resin has particularly high selectivity for adsorbing uranium ions, as well as high heat, acid and alkali resistance as well as dimensional stability. The resin is very effective for recovering uranium from various uranium-containing solutions such as sea water, crude phosphoric acid fertilizer solutions, lowgrade uranium ore, waste water from uranium refining, and uranium mine water.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: May 10, 1983
    Assignee: Unitika Ltd.
    Inventors: Akio Sasaki, Yoshiaki Echigo
  • Patent number: 4374740
    Abstract: Certain water-soluble substituted phenol formaldehyde type copolymers retain their viscosities in high brine environments and are highly useful as surfactant-mobility control agents in oil recovery processes.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: February 22, 1983
    Assignee: Mobil Oil Corporation
    Inventor: Catherine S. H. Chen
  • Patent number: 4343924
    Abstract: Disclosed is an improved method for coating a substrate with a film of a coating composition rapidly curable at room temperature in the presence of a vaporous tertiary-amine catalyst. The pot life of the coating composition is substantially increased without deleterious loss of properties of the ultimately cured film wherein the coating composition comprises three components. The first component is a phenol-functional condensation product of (a) a phenol-aldehyde reaction product bearing a plurality of methylol and phenol groups, and (b) a polyol, polycarboxylic acid, or polyepoxide, wherein the condensation product is reacted with a selective transmethylolating agent for substantially transforming residual methylol groups into non-active hydrogen groups. The second component is a multi-isocyanate cross-linking agent and the third component is an organic solvent. The coating composition is applied to a substrate and cured by exposure of the coated substrate to a vaporous tertiary amine catalyst.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: August 10, 1982
    Assignee: Ashland Oil, Inc.
    Inventor: Gary L. Linden
  • Patent number: 4308180
    Abstract: A rubber composition comprising vulcanizable natural or synthetic rubber and a sulfide resin produced by (1) reacting a component (A) with a componet (B), followed by reacting with a component (D), or (2) reacting a component (A) with a component (B), followed by reacting with a component (C) and a component (D) simultaneously or sequentially, and if desired reacting the resulting phenol resin with an acylating agent, the component (A) being a phenol compound of the following formula, and/or an acylated compound thereof, ##STR1## wherein R.sub.1 and R.sub.2 are each a hydrogen atom, a hydroxyl, carboxyl, amino, C.sub.1 -C.sub.18 alkyl, C.sub.3 -C.sub.10 cycloalkyl, C.sub.3 -C.sub.10 cycloalkenyl or C.sub.7 -C.sub.12 aralkyl group or a phenyl group unsubstituted or substituted with at least one C.sub.1 -C.sub.
    Type: Grant
    Filed: March 19, 1980
    Date of Patent: December 29, 1981
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Haruki Okamura, Tetsuo Yamaguchi, Tamaki Ishii
  • Patent number: 4308368
    Abstract: Photosensitive compositions which contain as a photosensitive resin prepared by the condensation of the co-condensated novolak resin of the mixture of phenols such as in a combination of tert-butyl (or tert-octyl) phenol and phenol and/or cresol and formaldehyde, with o-quinonediazido sulfonic (or carboxylic) acid or contain said novolak resin as an additive for a photosensitive o-quinonediazido compound are discosed.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: December 29, 1981
    Assignee: Daicel Chemical Industries Ltd.
    Inventors: Keiji Kubo, Tetsuo Ishihara
  • Patent number: 4284512
    Abstract: Ferric ions may be removed very selectively from aqueous solutions by means of a metal-chelating resin consisting of the acid-quaternized form of a cross-linked 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 treating the cross-linked polymer with an aqueous solution of a strong mineral acid.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: August 18, 1981
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventor: Jonathan H. Hodgkin
  • Patent number: 4281044
    Abstract: The bonding of phenolic resins and phenolic molding materials to copper is significantly improved by the addition to the phenolic material of elemental sulfur in a weight percentage from 0.005% to 1%, the weight percentage of sulfur being preferably from 0.01% to 0.2%.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: July 28, 1981
    Assignee: Rogers Corporation
    Inventors: Linwood A. Walters, J. Mark Mersereau
  • Patent number: 4252938
    Abstract: An acid agent comprises a liquid water-insoluble product of concurrent reaction of:(a) one mole of an hydroxy(R)-methyl derivative of phenol in which 0.4-2.0 moles of HO--CH(R)-groups are present per one mole of phenol, wherein R equals H--, CH.sub.3 --, or(b) one mole of phenol and 0.3-2.0 moles of an aldehyde and(c) 0.03-100.0 moles of an aryl sulphonic acid, having an acid number from 10 to 300 (mg.KOH/g) with a maximum water content of 35% by weight.The process of reacting said components is conducted in a flow reactor for 0.1-10 minutes at 50.degree.-150.degree. C.The acid agent according to the invention may be modified with other substances, such as amines, alcohols, or acids to impart additional useful properties thereto. The acid agent has low viscosity, low corrosive activity, improves the strength of phenol-formaldehyde resins cured therewith by 30% and lowers their water absorption capacity by 2-10 times.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: February 24, 1981
    Inventors: Vasily D. Valgin, Alexandr M. Vasilenko, Dmitry V. Valgin, Ljudmila A. Istratova
  • Patent number: 4247293
    Abstract: The invention relates to sulphonated, aromatic reaction products as agents for tanning hides and leather. They are obtained by reacting a sulphonation product, which is previously formed from a diphenyl ether, a phenol and a sulphonating agent, with formaldehyde, with a reaction mixture of an aminoplast-forming agent and formaldehyde or with an aminoplast precondensate.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: January 27, 1981
    Assignee: Ciba-Geigy Corporation
    Inventor: Albert Wurmli
  • Patent number: 4246144
    Abstract: Phenolic aldehyde resins used in adhesive coatings for binding substrates to rubber are modified to provide better adhesion and to decrease the problem of blowholes on the substrate coated with the adhesive coating. The resin is modified by incorporating into the resin a compound selected from the group consisting of urea, thiourea, thionamide having one to six carbon atoms or mixture thereof. In the method of preparing the modified phenolic aldehyde resin about 1 to about 10 weight percent based on the resin is added to the aqueous solution either simultaneously with or sequentially after the addition of the phenolic compound and aldehyde. The modified phenolic resin is then combined with an elastomeric latex or latices to produce the improved adhesive coating.
    Type: Grant
    Filed: October 31, 1978
    Date of Patent: January 20, 1981
    Assignee: PPG Industries, Inc.
    Inventor: Mikhail M. Girgis
  • Patent number: 4243796
    Abstract: Polyphosphazene copolymers are prepared which are comprised of repeating units represented by the formulas: ##STR1## wherein X is represented by the formula: ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen, substituted and unsubstituted alkyl radicals containing from 1 to 15 carbon atoms, substituted and unsubstituted cycloalkyl, aryl, arylalkyl, and heterocyclic radicals; X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, mercapto and amino radicals, and mixtures thereof; and 20.ltoreq.(w+y+z).ltoreq.50,000 per polymer unit.The polyphosphazene polymers of the present invention are prepared by the reaction of the enol form of an aldehyde or a ketone and an additional reactant such as an alkanol, aryl alcohol, mercaptan, or amine with poly(dichlorophosphazene) in the presence of a tertiary amine. The polymers of this invention may be modified by crosslinking or curing.
    Type: Grant
    Filed: September 8, 1978
    Date of Patent: January 6, 1981
    Assignee: The Firestone Tire & Rubber Company
    Inventors: William L. Hergenrother, Adel F. Halasa
  • Patent number: 4238595
    Abstract: Phenolic aldehyde resins used in adhesive coatings for binding substrates to rubber are modified to provide better adhesion and to decrease the problem of blowholes on the substrate coated with the adhesive coating. The resin is modified by incorporating into the resin a compound selected from the group consisting of urea, thiourea, thionamide having one to six carbon atoms or mixture thereof. In the method of preparing the modified phenolic aldehyde resin about 1 to about 10 weight percent based on the resin is added to the aqueous solution either simultaneously with or sequentially after the addition of the phenolic compond and aldehyde. The modified phenolic resin is then combined with an elastomeric latex or latices to produce the improved adhesive coating.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: December 9, 1980
    Assignee: PPG Industries, Inc.
    Inventor: Mikhail M. Girgis
  • Patent number: 4229557
    Abstract: Resins which are substantially white and resistant to yellowing are obtained by the addition of ammonium or alkali phosphates or ammonium or alkali borates during the production or processing of melamine-phenol-aldehyde resins in an aqueous basic medium, and by subsequently obtaining the resin by dehydration at a temperature of at least 70.degree. C.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: October 21, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Feinauer, Ludwig Streinz
  • Patent number: 4211856
    Abstract: A process for producing an acid agent which comprises reaction of sulphonated phenol and formaldehyde in an "ideal" displacement reactor at a temperature within the range of from 50.degree. to 120.degree. C. at a constant molar ratio of said components. The reaction may be carried out in the presence of additives such as urea or orthophosphoric acid.The process according to the present invention has an increased productivity at reduced power and labor inputs as compared to the prior art processes.
    Type: Grant
    Filed: January 5, 1978
    Date of Patent: July 8, 1980
    Inventors: Vasily D. Valgin, Alexandr M. Vasilenko, Anatoly Y. Morozov, Vadim D. Chesnokov
  • Patent number: 4202959
    Abstract: The present invention provides fibres of urea formaldehyde, melamine formaldehyde, phenol formaldehyde, and mixtures thereof, modified by inorganic oxyacid radicals derived from inorganic oxyacids of sulphur, salts of such inorganic oxyacids, phosphate radicals, phosphite radicals, borate radicals and mixtures thereof.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: May 13, 1980
    Assignee: Imperial Chemical Industries Limited
    Inventors: Richard G. C. Henbest, Kenneth McGregor
  • Patent number: 4187368
    Abstract: For the production of a powder-like furan resin use is made of a mixture of a ketone pertaining to the furan series, phenol-formaldehyde resin and, if desired, furfurol taken in a weight ratio of 10:3- 15:2-5 respectively. The mixture of said components is heated to a temperature within the range of from 130.degree. to 200.degree. C., whereupon the desired product is formed. The process may be conducted in the presence of a catalyst comprising a mixture of tin dichloride and hexamethylene diamine.The resulting powder-like furna resin is resistant against highly-aggressive media at a temperature of up to 120.degree. C.; it is also resistant against the effect of oxidizing agents at a temperature of up to 80.degree. C. Martens yield temperature of the powder-like furna resin of the present invention is as high as 300.degree. C. The resin yield is as high as 93%.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: February 5, 1980
    Inventors: Ildgam A. Bekbulatov, Juldash Mamatov, Gennady D. Varlamov, Shavkat Madaliev, Valery M. Gaibov
  • Patent number: 4168365
    Abstract: A flame-retardant phenolic resin which comprises the product obtained on(a) reacting at least one halogenated compound represented by the general formula (I) ##STR1## wherein A is --CH.dbd.CH.sub.2 or --O--CH.sub.2 --CH.dbd.CH.sub.2, X is a chlorine atom or a bromine atom, and n is an integer of 1, 2 or 3, with at least one phenol in the presence of an acidic catalyst; and(b) reacting the resulting reaction product with at least one phosphoric acid ester compound containing a phenolic OH group represented by the general formula (II), (III) or (IV). ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents an unsubstituted or substituted hydrocarbyl group, where R.sub.1 and R.sub.2 may be the same or different, and n is 1, 2 or 3, and at least one aldehyde or a precursor thereof in the presence of an acidic or alkali catalyst; and a process for producing the flame-retardant phenolic resin.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: September 18, 1979
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Hidekazu Takano, Toshiharu Mikawa, Kazuhiko Nemoto
  • Patent number: 4125410
    Abstract: A water-reducing admixture for use in preparing a hydraulic composition comprisingI. 95 to 50% by weight of a water-soluble sulfonate andIi. 5 to 50% by weight of a water-soluble copolymer, said water-soluble sulfonate (I) being selected from the group consisting ofA. a water-soluble salt of a sulfonated aromatic hydrocarbon,B. a water-soluble sulfonate, andC. a water-soluble salt of sulfonated melamine resins.
    Type: Grant
    Filed: August 24, 1976
    Date of Patent: November 14, 1978
    Assignee: Nippon Zeon Co., Ltd.
    Inventor: Tadao Natsuume
  • Patent number: 4110415
    Abstract: Novel polymethylol polyphosphonates are prepared by reacting a trisubstituted polyphosphite having at least one alkyl group and formaldehyde. The phosphite reactant may contain the requisite hydroxyl functionality [e.g. - heptakis (dipropylene glycol) triphosphite] or the hydroxyl functionality may be introduced by carrying out the reaction in the presence of a polyol, e.g. - glycerol, as a protic solvent. The resulting reaction product is a water-soluble liquid of relatively low viscosity and may be employed without any refining. The thus-formed polyphosphonates can be readily incorporated into either rigid urethane foam formulations to impart flame retardancy or phenolic resins to improve flexibility.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: August 29, 1978
    Assignee: Union Carbide Corporation
    Inventors: Eugene J. Boros, Anthony J. Papa