Six-membered Nitrogen Ring Having At Least One Diverse Hetero Atom, E.g., Morpholine, Etc. Patents (Class 524/96)
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Patent number: 5623005Abstract: A naphthopyran compound of general formula (I) ##STR1## wherein R.sub.1 represents a group of the formula --NR.sub.2 R.sub.3 wherein each of R.sub.2 and R.sub.3, which may be the same or different, independently represents an alkyl group, or a carbocyclic or heterocyclic group, or R.sub.2 and R.sub.3 taken together with the nitrogen atom to which they are attached represent a heterocyclic ring having one or more hetero atoms and which may optionally carry at least one substituent selected from alkyl, aryl, or heteroaryl groups; each of R.sub.4 and R.sub.5, which may be the same or different, independently represents an alkyl, alkenyl, carbocyclic or heterocyclic group, or R.sub.4 and R.sub.5 taken together with the carbon atom to which they are attached form a carboxylcyclic ring or a heterocyclic ring; and R.sub.6 represents a hydrogen atom or a substituent selected from alkyl, alkoxy, aryl, aryloxy, heteroaryl, halogen, a group of formula R.sub.Type: GrantFiled: November 2, 1995Date of Patent: April 22, 1997Assignee: Pilkington PLCInventors: Martin Rickwood, Katharine E. Smith, Christopher D. Gabbutt, John D. Hepworth
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Patent number: 5604275Abstract: This invention relates to an N-vinyl heterocyclic copolymer in substantially pure deionized water or in aqueous alcoholic solution which exhibits significantly reduced color and odor and which is obtained by contacting an alcohol-copolymer mixture with water and a nitrogen containing, trivalent boron complex compound selected from the group of borane-ammonia, borane-lower alkylamine, tetra-lower alkyl ammonium octahydrotriborate, morpholine-borane, lower alkyl morpholine-borane, silylamino borane and mixtures thereof and stripping alcohol from the resulting mixture under vacuum at between about 100 and about 740 mm Hg below absolute whereby an aqueous, 10-70 wt. % solids solution of the copolymer is obtained having a water white color stability of more than a year.Type: GrantFiled: September 27, 1995Date of Patent: February 18, 1997Assignee: ISP Investments Inc.Inventors: Yuanzhen Zhong, Philip F. Wolf
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Patent number: 5585192Abstract: This invention is directed to a waterborne polyolefin composition which is useful as an adhesion promotor and is prepared by emulsifying non-oxidized, non-maleated, non-chlorinated, crystalline polyolefins and non-chlorinated, maleated, amorphous polyolefins in the presence of a surfactant, an amine and water.Type: GrantFiled: October 2, 1995Date of Patent: December 17, 1996Assignee: Eastman Chemical CompanyInventors: Mahendra K. Sharma, Kevin A. Williams, Michael Bellas
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Patent number: 5578667Abstract: The invention relates to novel water-soluble antioxidants of formula ##STR1## wherein the variables are as defined in the claims, to a process for their preparation and to the use thereof for the photochemical and thermal stabilisation of dyed and undyed polyamide fibre materials.Type: GrantFiled: September 15, 1995Date of Patent: November 26, 1996Assignee: Ciba-Geigy CorporationInventors: Francesco Fuso, Gerhard Reinert
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Patent number: 5502093Abstract: Polyacetal resin compositions have excellent weather resistance and environment resistance, which suppress resin deterioration/discoloration, crack and discoloration caused by additive bleeding during extended exposure to light while maintaining the initial molded product surface condition. The polyacetal compositions include a blend of (A) 100 parts by weight of a polyacetal resin, with the specific amounts of (B) an acrylic resin, (C) an oxyalkylene polymer having chains of 2 to 8 consecutive carbon atoms, (D) a UV absorber and (E) two kinds of the hindered amine compounds each having a different molecular weight.Type: GrantFiled: November 21, 1994Date of Patent: March 26, 1996Assignee: Polyplastics Co., Ltd.Inventors: Toru Katsumata, Nobuyuki Matsunaga
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Patent number: 5424345Abstract: Triazinylphosphonic acids of general formula (I): ##STR1## obtained by subsequent condensation reaction of a cyanuric halide with a osphite and with amines, and then by hydrolysis reaction of the intermediate thus obtained. The compounds of general formula (I) are used in particular as flame retardant additives.Type: GrantFiled: April 21, 1994Date of Patent: June 13, 1995Assignee: Ministero Dell 'Universita'E Della Ricerca Scientifica E TecnologicaInventors: Roberto Cipolli, Cristina Rossi, Roberto Oriani, Enrico Masarati, Gilberto Nucida
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Patent number: 5401797Abstract: A highly antioxidant resin composition containing a resin, a solution of a hypophosphite compound in an organic solvent, a heat stabilizer and a hindered amine base weathering stabilizer, which has improved heat stability and weather resistance. The hypophosphite compound is preferably dissolved in a polyvalent alcohol having a molecular weight of not more than 50,000.Type: GrantFiled: October 23, 1991Date of Patent: March 28, 1995Assignee: Sumitomo Chemical Company, LimitedInventors: Kozo Kotani, Taiichi Sakaya
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Patent number: 5380815Abstract: Condensation compounds obtained by means of the polymerization of polyami compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine having the general formula (I): ##STR1## with aldehydes, preferably formaldehyde.Type: GrantFiled: November 13, 1992Date of Patent: January 10, 1995Assignee: Ministero Dell `Universita` E Della Ricerca Scientifica E TecnologicaInventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
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Patent number: 5354793Abstract: An accelerator composition and a rubber compounding composition in which a rubber is blended with a combination of three accelerators and sulfur for curing the rubber while minimizing the formation of iridescent sheen. The combination of accelerators included a thiolated morpholine, a dithiocarbamate and a benzothiazole.Type: GrantFiled: December 20, 1991Date of Patent: October 11, 1994Assignee: DSM Copolymer, Inc.Inventor: John C. Hudson
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Patent number: 5352714Abstract: Improved silicone-containing hydrogels are disclosed with enhanced wettability comprising a silicone-containing monomer, hydrophilic monomers, and a relatively non-polar ring-containing monomer able to be converted to a highly polar amino acid upon hydration.Type: GrantFiled: July 30, 1992Date of Patent: October 4, 1994Assignee: Bausch & Lomb IncorporatedInventors: Yu-Chin Lai, Gary D. Friends, Paul L. Valint, Jr.
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Patent number: 5350786Abstract: Stabilizers for organic polymers, consisting of one or more compounds of the classis of the sterically hindered amines (HALS) are directly added to the reaction mixture during the (co)polymerization of the .alpha.-olefins or of their mixtures with other unsaturated monomers.The so-obtained polymeric compositions result perfectly stabilized and show a thermo- and photo-oxidative resistance higher than that of the same polymeric compositions to which the same stabilizers are added by a traditional route.Type: GrantFiled: March 4, 1993Date of Patent: September 27, 1994Assignee: Enichem Synthesis S.p.A.Inventors: Silvestro Costanzi, Damiano Gussoni, Luciano Pallini
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Patent number: 5342862Abstract: Process for controlling the photodegradation of a film of polypropylene or propylene copolymers having a thickness of about 1.25 mils or less, by forming a composition comprising carbon black as the sole UV light absorbing staiblizer and comprising about 0.5% to about 2.4% by weight of the film, hindered amine light stabilizer for interrupting the free radical chain degradation mechanism and comprising about 0.02% to about 0.4% by weight of the film; and an impact modifier for enhancing the photodegradability of the film and comprising about 1% to 40% by weight of the film.Type: GrantFiled: December 13, 1993Date of Patent: August 30, 1994Assignee: Biolan CorporationInventor: Murray H. Reich
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Patent number: 5314938Abstract: Amelinic compounds of general formula (I) ##STR1## obtained by subsequent condensation reaction of 1 mol of a cyanuric acid lide with 1 mol of amine and of a polyamine and by hydrolysis reaction of the thus obtained intermediate. Compounds of general formula (I) are used, in particular, as antiflame additives.Type: GrantFiled: February 10, 1993Date of Patent: May 24, 1994Assignee: Ministereo Dell'Universita' E Della Ricerca Scientifica E TechnologicaInventors: Roberto Cipolli, Gilberto Nucida, Enrico Masarati, Roberto Oriani, Mario Pirozzi
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Patent number: 5310767Abstract: The present invention relates to novel tetramethylpiperidine compounds of the formula (I) ##STR1## in which R.sub.1 is e.g. hydrogen or methyl, R.sub.2 and R.sub.3 are e.g. --(CH.sub.2).sub.2 --, R.sub.4 is e.g. --CO--, --COCO-- or --COCH.sub.2 CO--, n is e.g. 1 and R.sub.5 is e.g. hydrogen or allyl.These compounds are suitable for use as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.Type: GrantFiled: December 10, 1992Date of Patent: May 10, 1994Assignee: Ciba-Geigy CorporationInventors: Valerio Borzatta, Graziano Vignali
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Patent number: 5308899Abstract: Described are compositions protected against thermal and oxidative degradation that compriseA) a polyether polyol or mixtures of such polyols,B) at least one benzofuranone derivative of formula I, ##STR1## wherein L, G, m, R.sub.1 to R.sub.5 and R.sub.21 to R.sub.24 are as defined in claim 1,C) at least one compound from the group of the phenolic anti-oxidants, and/orD) at least one compound from the group of the amino anti-oxidants of the secondary amine type. Also polyurethane(s) (foam(s)) prepared therefrom are protected against thermal and oxidative degradation, especially against core scorching.Type: GrantFiled: November 16, 1992Date of Patent: May 3, 1994Assignee: Ciba-Geigy CorporationInventor: Peter Michaelis
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Patent number: 5306495Abstract: Compounds containing substituted piperidine groups, of the general formula (I) ##STR1## in which n is e.g. 1, 2 or 3, R.sub.1 is e.g. hydrogen or methyl, R.sub.2 is e.g. ethylene or trimethylene and if n is 1, A is e.g. hydrogen, --COOC.sub.18 H.sub.37 --n or --COC.sub.11 H.sub.23 --n, if n is 2, A is e.g. ##STR2## and if n is 3, A is e.g. ##STR3## are effective stabilizers for organic materials, especially synthetic polymers, which are subject to the action of light, heat and oxidation.Type: GrantFiled: March 2, 1992Date of Patent: April 26, 1994Assignee: Ciba-Geigy CorporationInventors: Giuseppe Cantatore, Graziano Vignali
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Patent number: 5302642Abstract: Self-extinguishing polymeric compositions comprising an ammonium polyphoste having the general formula:(NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1microencapsulated with condensation compounds obtained by polymerizing polyaminic compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (II): ##STR1## with aldehydes, preferably formaldehyde.Type: GrantFiled: November 13, 1992Date of Patent: April 12, 1994Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e TechnologicaInventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
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Patent number: 5302640Abstract: Self-extinguishing, thermoplastic, polymeric compositions comprising a phhorus derivative and condensation compounds obtained by polymerizing polyaminic compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (I): ##STR1## with aldehydes, preferably formaldehyde.Type: GrantFiled: November 13, 1992Date of Patent: April 12, 1994Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e TechnologicaInventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
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Patent number: 5252407Abstract: A rubber composite comprising polyester fibers as the reinforcing material, wherein a compound having at least one cyclic imino ether group of a specific structure in its molecule is incorporated in a rubber composite except for adhesive-treated polyester cords.Type: GrantFiled: November 18, 1991Date of Patent: October 12, 1993Assignees: Takeda Chemical Industries, Ltd., Toyo Boseki Kabushiki KaishaInventors: Kiyosuke Kamiyama, Shuzo Sawada, Kazuyuki Yabuki, Yasuo Sano
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Patent number: 5225113Abstract: A photochromatic composition, endowed with a high light fatigue resistance contains a photochromatic compound belonging to the class of spirooxazines and an U.V.-stabilizer consisting of a sterically hindered amine to be defined by means of formula (I): ##STR1## wherein: R is either hydrogen or a methyl group,x is either oxygen or nitrogen,m is a number comprised within the range of from 2 to 10, andn is a number coprised within the range of from 1 to 100.A photochromatic article made from a thermoplastic material, endowed with a high light fatigue resistance, contains a thermoplastic material and the hereinabove disclosed photochromatic composition.Type: GrantFiled: March 19, 1992Date of Patent: July 6, 1993Assignee: Enichem Synthesis S.p.A.Inventors: Carlo Busetto, Luciana Crisci
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Patent number: 5214084Abstract: A polypropylene resin containing an .alpha.-olefinic copolymer rubber and an inorganic filler is stabilized by incorporating therein the following 6 components:(A) a hindered phenolic compound having a molecular weight of not less than 500,(B) a high-molecular hindered piperidine compound such as poly[{6-(1,1,3,3-tetramethylbutyl)amino-1,3,5-triazine-2,4-diyl}{(2,2,6,6- tetramethyl-4-piperidyl)-imino}hexamethylene{(2,2,6,6-tetramethyl-4-piperid yl)imino}],(C) a low-molecular hindered piperidine compound such as 2-methyl-2-(2,2,6,6-tetramethyl-4-piperidyl)amino-N-(2,2,6,6-tetramethyl-4 -piperidyl)propionamide,(D) a benzoate compound such as 2,4-di-t-butylphenyl 3,5-di-t-butyl-4-hydroxybenzoate,(E) a phosphorous compound such as bis(2,4-di-t-butylphenyl) pentaerythritol diphosphite, and(F) an amide compound such as ethylene-bisstearylamide. This composition may also contain a sulfur compound such as dialkyl thiodipropionate and pentaerythritol tetrakis(3-alkylthiopropionate).Type: GrantFiled: August 24, 1992Date of Patent: May 25, 1993Assignee: Sumitomo Chemical Company, Ltd.Inventors: Tamaki Ishii, Shinichi Yachigo
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Patent number: 5210120Abstract: Polymeric compositions endowed with high self-extinguishing characteristics o flame, based on thermoplastic polymers or polymers having elastomeric properties, especially olefin polymers and copolymers, comprising:a) from 89 to 40 parts by weight of a thermoplastic polymer or of a polymer having elastomeric properties;b) from 8 to 33 parts by weight of one or more phosphates and/or phosphonates of ammonium or of amine;c) from 3 to 27 parts by weight of one or more oligomeric compounds derived from the 2,4-diamino-6-hydroxy-1,3,5-triazine, having the general formula (I): ##STR1##Type: GrantFiled: October 31, 1991Date of Patent: May 11, 1993Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e TechnologicaInventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Roberto Oriani, Mario Pirozzi
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Patent number: 5210118Abstract: The present invention relates to a novel method for stabilizing synthetic thermoplastic materials against thermal degradation, which comprises incorporating in said materials one or more compounds of the formula (I) ##STR1## in which R.sub.1 is unsubstituted or substituted phenyl, n is e.g. 1, 2 or 3, and, when n is 1, R.sub.2 is e.g. --COR.sub.3, --COOR.sub.4 or --CO-N(R.sub.5)R.sub.6 in which R.sub.3 is e.g. C.sub.4 -C.sub.17 alkyl, R.sub.4 is e.g. C.sub.4 -C.sub.18 alkyl, cyclohexyl or t-butylcyclohexyl, R.sub.5 and R.sub.6 which can be identical or different are e.g. C.sub.2 -C.sub.8 alkyl or cyclohexyl, and, when n is 2, R.sub.2 is e.g. --CO--R.sub.10 --OC, --COO-R.sub.11 --OOC-- or --CONH--R.sub.12 --NHCO- in which R.sub.10 is e.g. C.sub.2 -C.sub.8 alkylene, R.sub.11 is e.g. C.sub.4 -C.sub.6 alkylene and R.sub.12 is e.g. C.sub.4 -C.sub.6 alkylene, and, when n is 3, R.sub.2 is e.g. benzenetricarbonyl.Several compounds of the formula (I) are new.Type: GrantFiled: June 10, 1991Date of Patent: May 11, 1993Assignee: Ciba-Geigy CorporationInventor: Roberto Scrima
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Patent number: 5200445Abstract: Polymeric compositions endowed with high characteristics of flame self-esguishing, based on thermoplastic polymers or showing elastomeric properties, especially olefin polymers and copolymers, comprising:a) from 89 to 40 parts by weight of a thermoplastic polymer or having elastomeric properties;b) from 8 to 33 parts b.w; of one or more phosphates and/or phosphonates of ammonium or of an amine;c) from 3 to 27 parts b.w.Type: GrantFiled: September 11, 1991Date of Patent: April 6, 1993Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e TecnologicaInventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Mario Pirozzi, Roberto Oriani
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Patent number: 5190999Abstract: Compositions comprising an organic material liable to oxidative, thermal and/or actinic degradation and at least one compound of the formula I ##STR1## are described in which n is 1-6, R, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are preferably hydrogen and A is a monovalent radical or polyvalent linking moiety.Some of the compounds of the formula I are novel. They are particularly suitable for the stabilization of lubricating oils, metal processing fluids and hydraulic fluids, and of thermoplastics and elastomers.Type: GrantFiled: June 24, 1991Date of Patent: March 2, 1993Assignee: Ciba-Geigy CorporationInventor: Peter Nesvadba
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Patent number: 5158998Abstract: Acrylic or alkyd resin and polyester based covering or coating compositions are stabilized against the action of light and moisture by adding, possibly in the presence of conventional stabilizers and antioxidants, at least one compound containing at least one N-substituted, sterically hindered piperidino, morpholino or pyrrolidino group, and at least one silyl function, or a polymer structure with a polyorganosiloxane structure containing sterically hindered piperidino groups in the molecule.Type: GrantFiled: March 18, 1991Date of Patent: October 27, 1992Assignee: Enichem Synthesis S.p.A.Inventors: Carlo Neri, Francesco Gratani, Gianluigi Landoni, Silvestro Costanzi
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Patent number: 5153245Abstract: Polymeric compositions endowed with high characterics of self-extinguishing o flame based on thermoplastic polymers or having elastomeric properties, especially olefin polymers and copolymers, comprising:a) from 91 to 40 parts by weight of a thermoplastic polymer or having elastomeric properties;b) from 6 to 33 parts by weight of one or more phosphates and/or phosphonates of ammonium or of an amine;c) from 3 to 27 parts by weight of one or more compounds derived from 2,4-diamino-6-hydroxy-1,3,5-triazine, having the general formula (I): ##STR1##Type: GrantFiled: September 9, 1991Date of Patent: October 6, 1992Assignee: Ministero Dell'Universita' E Della Ricerca Scientifica E TechnologicInventors: Roberto Cipolli, Gilberto Nucida, Enrico Masarati, Roberto Oriani, Mario Pirozzi
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Patent number: 5139885Abstract: A resin composition, being useful for coating on electric wire, comprises an aromatic polyester, a halogenated compound such as diol, diglycidyl and dicarboxylic acid and a di-heterocyclic compound.Type: GrantFiled: March 20, 1990Date of Patent: August 18, 1992Assignee: Polyplastics Co., Ltd.Inventors: Toshio Nakane, Yukihiko Kageyama, Hiroaki Konuma, Kenji Hijikata
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Patent number: 5130356Abstract: A novel, optically transparent, isotropic molding for optical purposes which is free of orientation birefringence consists of a mixture of polyphenylene ethers, vinylaromatic polymers and additives. The novel molding contains traces of novel diphenoquinone and/or diphenohydroquinone derivatives as additives and may also contain novel ammonium salts of sulfuric acid half esters of diphenohydroquinones as further additives. The novel molding has a yellowness index (YI) of from 40 to 90. It can be produced in a simple manner by injection molding processes. The novel molding in the form of a circular disk having a central hole is very useful as a dimensionally stable substrate of audio compact disks (CD), audiovisual compact disks (CDV), laser-optical computer disks and magneto-optical computer disks, and data media of this type which contain these novel dimensionally stable substrates have particularly advantageous performance characteristics.Type: GrantFiled: February 1, 1990Date of Patent: July 14, 1992Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Feuerherd, Carola Hedtmann-Rein, Ludger Leber
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Patent number: 5116919Abstract: A process for increasing the relative viscosity of a polyamide includes heating the polyamide in the presence of a base and a catalyst with the catalyst being at least one compound of the formula:X--(CH.sub.2).sub.n PO.sub.3 R.sub.2wherein X is 2-pyridyl, 4-morpholino, 1-pyrrolidino, 1-piperidino or R'.sub.2 --N-- wherein R' is an alkyl group having between 1 and 12 carbon atoms;n is an integer from 2 to 5; andR, being the same or different, is H or an alkyl group having between 1 and 12 carbon atoms.Type: GrantFiled: December 5, 1990Date of Patent: May 26, 1992Assignee: E. I. du Pont de Nemours and CompanyInventors: John F. Buzinkai, Marion R. DeWitt, Jr., Robert C. Wheland
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Patent number: 5085905Abstract: An elastomeric composition having improved adhesion to metal reinforcement is disclosed, said elastomeric composition comprising an elastomer containing, an adhesion promoting amount of a polysulfide having the formulaR--S.sub.(m) --R'where m is an integer of from about 2 to 6; R and R' are the same or different and are ##STR1## R" is an alkyl group of from about 1 to 4 carbon atoms; and R'" is an alkyl group of from about 1 to 4 carbon atoms or an aryl group.Type: GrantFiled: June 6, 1990Date of Patent: February 4, 1992Assignee: Dayco Products, Inc.Inventor: Harold D. Beck
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Patent number: 5079284Abstract: A polymer such as polyester is modified with reaction with a modifier of a compound having the formula: ##STR1## in which X is halogen, Y.sub.1 and Y.sub.2 are a three- to eight-membered ring, Z is a divalent organic group and n is 1 or more.Type: GrantFiled: February 8, 1990Date of Patent: January 7, 1992Assignee: Polyplastics Co., Ltd.Inventors: Toshio Nakane, Yukihiko Kageyama, Kenji Hijikata
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Patent number: 5047531Abstract: Piperidine-triazine compounds of the general formula (I) ##STR1## in which R.sub.1 is e.g. hydrogen or methyl, R.sub.2 is e.g. C.sub.2 -C.sub.6 alkylene, R.sub.3 is e.g. a group ##STR2## ##STR3## can be used as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, in particular synthetic polymers.Type: GrantFiled: August 2, 1989Date of Patent: September 10, 1991Assignee: Ciba-Geigy CorporationInventors: Giuseppe Cantatore, Graziano Vignali
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Patent number: 5041478Abstract: A resin composition for printed circuit board and the printed circuit board in which said resin composition is used as substrate, said resin composition comprising one or more cyclic phosphonitrile compounds represented by the general formula [I] and/or [II] and an aromatic maleimide compound and/or an aromatic amine: ##STR1## wherein at least two of R's (R.sub.1 to R.sub.Type: GrantFiled: June 6, 1990Date of Patent: August 20, 1991Assignee: Hitachi, Ltd.Inventors: Katuo Sugawara, Akio Takahashi, Masahiro Ono, Toshikazu Narahara
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Patent number: 5037877Abstract: A process for producing an acrylic and/or methacrylic polymer based preparation for the surface treatment of zinc consists in polymerizing at least one (meth)acrylic acid and at least one (meth)acrylate in a mixture of organic cosolvents. The preparation is then formed from the resultant copolymer in the cosolvents by dilution in a quantity of water and preferably an excess of water with respect to the cosolvents in the polymerization stage.Type: GrantFiled: August 6, 1990Date of Patent: August 6, 1991Assignee: Produits Chimiques Auxiliaires et de Synthese (P.C.A.S.)Inventor: Jean P. Kerherve
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Patent number: 5021479Abstract: Substituted hydroxylamine ester stabilizers corresponding to the formula ##STR1## wherein n is 0-2, X is a direct bond, --S-- or --CH.sub.2 S--, R.sub.1 and R.sub.2 are independently hydrogen, alkyl, cycloalkyl, aralkyl, R.sub.3 and R.sub.4 are independently alkyl, cycloalkyl or aralkyl, and R.sub.5 is hydrogen or the group ##STR2## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation.Type: GrantFiled: October 12, 1989Date of Patent: June 4, 1991Assignee: Ciba-Geigy CorporationInventors: Ramanathan Ravichandran, Stephen D. Pastor
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Patent number: 5019611Abstract: There is disclosed compounds having, within their structural formulae, a trivalent moiety: ##STR1## which exhibit antiozonant activity when added to rubber compositions at antiozonant effective levels and which exhibit synergistic antiozonant activity when used with conventional antiozonants in rubber compositions. There is also disclosed novel compounds which can be used as antiozonants.Type: GrantFiled: January 15, 1987Date of Patent: May 28, 1991Assignee: The Goodyear Tire & Rubber CompanyInventors: Kevin L. Rollick, James G. Gillick, Joseph A. Kuczkowski
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Patent number: 5004789Abstract: Compositions of phenolic resins, for example, phenol formaldehyde resins, containing an additive of triethanolamine borate or an amine/oxygen-containing boron derivative mixture, e.g., triethanolamine and boric anhydride, are particularly useful for the manufacture of prepeg mats.Type: GrantFiled: June 4, 1987Date of Patent: April 2, 1991Assignee: Societe Chimiques des Charbonnages S.A.Inventors: Francois Boinot, Michel Cousin, Pierre-Michel Francois, Francois Michel-Dansac
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Patent number: 4985479Abstract: A stabilized polyolefin composition having improved weathering resistance is provided, whereby the following four components are incorporated into a polyolefin:(A) a hindered piperidine compound having a molecular weight of more than 750, such as poly-{[6-morpholino-1,3,5-triazine-2,4-diyl][2,2,6,6-tetramethyl-4-piperid yl)imino]hexamethylene[2,2,6,6-tetramethyl-4-piperidyl)imino]},(B) a hindered piperidine compound having a molecular weight of less than 500, such as bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate,(C) a benzoate compound such as 2,4-di-t-butylphenyl 3,5-di-t-butyl-4-hydroxybenzoate, and(D) a phosphorus-containing compound such as bis(2,4-di-t-butylphenyl) pentaerythritol diphosphite.Type: GrantFiled: March 28, 1989Date of Patent: January 15, 1991Assignee: Sumitomo Chemical Company, Ltd.Inventors: Hideo Nagasaki, Shinichi Yachigo, Takeshi Takata, Hiroki Yamamoto, Yukoh Takahashi
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Patent number: 4977197Abstract: A photopolymerizable dental composition, which comprises:(A) an organic composite filler obtained by polymerizing at least one carboxylic acid monomer of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a C.sub.1 -C.sub.15 alkyl group, a --COOY group, a halogen atom, or a phenyl group or a derivative thereof; R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.15 alkyl group, a --COOZ group, a halogen atom, or a phenyl group or a derivative thereof; R.sub.3 is a hydrogen atom, a C.sub.1 -C.sub.15 alkyl group, a halogen atom, or a phenyl group or a derivative thereof; and each of X, Y and Z is a hydrogen atom, NH.sub.4 or an alkali metal atom; or the formula: ##STR2## wherein each of R.sub.4 and R.sub.5 is a hydrogen atom, a C.sub.1 -C.sub.Type: GrantFiled: May 12, 1988Date of Patent: December 11, 1990Assignee: Mitsubishi Rayon Company LimitedInventors: Isao Sasaki, Nobuhiro Mukai, Hitoshi Ige
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Patent number: 4954541Abstract: A resin composition, being useful for coating on electric wire, comprises an aromatic polyester, a halogenated compound such as diol, diglycidyl and dicarboxylic acid and a di-heterocyclic compound.Type: GrantFiled: November 15, 1988Date of Patent: September 4, 1990Assignee: Polyplastics Co., Ltd.Inventors: Toshio Nakane, Yukihiko Kageyama, Hiroaki Konuma, Kenji Hijikata
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Patent number: 4952619Abstract: Reactive stabilizing compounds, able to stabilize organic polymers, contain in their molecule a sterically hindered amino group and a hydrolyzable silyl function.In stabilizing organic polymers, said reactive stabilizing compounds can be hydrolyzed at the silyl function with the formation of silanol groups, which are made to interact in order to form complex resinous stabilizing structures. These latter are added in stabilizing quantities to the polymer to the stabilized.According to one particular embodiment, the hydrolysis at the silyl function and the formation of the resinous structure take place spontaneously within the polymer to be stabilized.According to a further embodiment, the reactive stabilizing compound is added to the polymer after being stably supported on a solid support by reaction with an inorganic solid having surface hydroxyl groups.Type: GrantFiled: May 14, 1987Date of Patent: August 28, 1990Assignee: Enichem Synthesis S.p.A.Inventors: Alberto Greco, Carlo Busetto, Luigi Cassar, Carlo Neri
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Patent number: 4948546Abstract: AB dispersants made by group transfer polymerization aid in controlling color shift during casting of MMA polymer sheet containing color pigments and additives, particularly chain transfer agent and sheet release agent.Type: GrantFiled: December 2, 1988Date of Patent: August 14, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventors: Walter H. Delphin, Clyde S. Hutchins, Robert J. Buchacek
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Patent number: 4946880Abstract: Reactive stabilizer compounds, to be used in the stabilization of organic polymers, contain a sterically hindered, N-substituted piperidinic, morpholinic or pyrrolidinic group, and at least a hydrolysable silicic function.Such compounds give rise, by hydrolysis of the silicic function, to complex resinous structures endowed with stabilizing properties.The reactive stabilizer compounds can spontaneously hydrolyse inside the polymer, or they can be stably supported on a solid support, or they can be chemically linked to the polymeric chain to be stabilized.Type: GrantFiled: October 5, 1987Date of Patent: August 7, 1990Assignee: Enichem Synthesis S.p.A.Inventors: Silvestro Costanzi, Damiano Gussoni, Omero Zavattini, deceased, by Clara Pungiluppi, heir, by Renato Zavattini, heir, Luciano Pallini
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Patent number: 4946734Abstract: A resin composition for printed circuit board and the printed circuit board in which said resin composition is used as substrate, said resin composition comprising one or more cyclic phosphonitrile compounds represented by the general formula [I] and/or [II] and an aromatic maleimide compound and/or an aromatic amine: ##STR1## wherein at least two of R's (R.sub.1 to R.sub.Type: GrantFiled: November 18, 1987Date of Patent: August 7, 1990Assignee: Hitachi, Ltd.Inventors: Katuo Sugawara, Akio Takahashi, Masahiro Ono, Toshikazu Narahara
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Patent number: 4929653Abstract: Excellent stabilization of pigmented polypropylene (PP) fiber against gas fade upon exposure to atmospheric pollutants is obtained with a hindered amine containing a polysubstituted piperazin-2-one (PSP) moiety, for example, a C.sub.2 -C.sub.12 alkylene connecting two PSP moieties, or a trisubstituted triazine ring with three PSP substituents, or a polyalkylene polyamine having pendant substituted oxo-piperazinyl-traizine moieties (PIP-T), that is, having pendant triazine rings substituted with PSP substituents. The stabilizers are unexpectedly effected when used without an antioxidant which produces yellowing, if used. Either pigmented or unpigmented PSP-stabilized PP fibers, and particularly fibers pigmented with white or pastel dyes, and having a non-alkaline "finish" are especially benefitted.Type: GrantFiled: July 13, 1987Date of Patent: May 29, 1990Assignee: The BF Goodrich CompanyInventors: George Kletecka, John T. Lai, Pyong N. Son
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Patent number: 4927667Abstract: An aqueous process is described for preparing water-resistant coatings of hydrophobic copolymers of a predetermined composition. The hydrophobic copolymers are made from hydrophilic comonomers such as a vinyl lactam and a polymerizable carboxylic acid. The hydrophobic copolymers are rendered water soluble with a volatile neutralizing agent, such as ammonium hydroxide, then coated onto a substrate and heated to provide the water-resistant coating, and, if desired, redissolved in an aqueous alkaline solution.Type: GrantFiled: June 22, 1989Date of Patent: May 22, 1990Assignee: GAF Chemicals CorporationInventors: Jenn S. Shih, Terry E. Smith, Robert B. Login
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Patent number: 4918122Abstract: The invention provides a composition comprising a resin processable at temperatures upto 160.degree. C. having incorporated therein a flame retardant amount of a salt formed by reaction between dimethyl methyl phosphonate, monomethyl methyl phosphonate or methyl phosphonic acid, and a compound of the general formula (I) ##STR1## in which X is 0 or S; R.sup.1 is H, alkyl with 1 to 4 carbon atoms, alkenyl of up to 4 carbon atoms, CN, CONH.sub.2 or NH.sub.2, R.sup.2 is H, alkyl with 1 to 4 carbon atoms or alkenyl of up to 4 carbon atoms or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached form a heterocyclic ring of up to 6 carbon atoms which may optionally contain another hetero atom and R is H, an alkyl group with 1 to 8 carbon atoms, an aryl group with 6 to 10 carbon atoms, a cycloalkyl group with 5 to 12 carbon atoms or a heterocyclic group with up to 9 ring carbon atoms, or, together with R.sup.1 forms an alkylene chain of 3 to 10 carbon atoms, or R is a group NHR.sup.Type: GrantFiled: July 15, 1987Date of Patent: April 17, 1990Assignee: Ciba-Geigy CorporationInventors: Richard J. Dellar, Norman Richardson, deceased, Brian G. Clubley
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Patent number: 4889881Abstract: An ethylene-.alpha.-olefin vulcanized rubber composition with excellent weather resistance and high transparency which is formed by vulcanizing with an organic peroxide an unvulcanized rubber composition comprising an ethylene-.alpha.-olefin rubber containing no metal oxide nor metal carbonate.Type: GrantFiled: August 9, 1988Date of Patent: December 26, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroyoshi Takao, Yoshio Tanimoto, Kiyosi Ikeda
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Patent number: H889Abstract: Improved processabiity and thermal stability is demonstrated by stabilized compositions comprising a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon having incorporated therein a stabilizing quantity of a stable organic free radical.Type: GrantFiled: August 7, 1989Date of Patent: February 5, 1991Assignee: Shell Oil CompanyInventor: Robert Q. Kluttz