Mixed With Ethylenically Unsaturated Reactant Or Polymer Therefrom Patents (Class 525/426)
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Patent number: 4537947Abstract: Aromatic polyimides with various functional end-groups such as --CH.dbd.CH.sub.2, --C.tbd.CH, --CN and --CHO are chain-extended (molecular weight increased) by reacting the functional groups with aromatic bis-dipoles. A representative bis-dipole is 1,4-benzene-dinitrile oxide. These polyimides can be shaped and formed prior to chain extending.The aromatic polyimides appropriate for chain-extending are formed by the reaction of aromatic dianhydrides, aromatic amines and monoamines which contain the functional groups.Type: GrantFiled: March 14, 1975Date of Patent: August 27, 1985Assignee: University of Notre Dame du LacInventor: Gaetano F. D'Alelio
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Patent number: 4532270Abstract: Novel curing compositions are prepared comprising an acrylic or substituted acrylic monomer and a normal polyimide or polyisoimide bis-acetylene additive.Type: GrantFiled: January 27, 1984Date of Patent: July 30, 1985Assignee: National Starch and Chemical CorporationInventors: Robert D. Rossi, Dilip K. Ray-Chaudhuri
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Patent number: 4528307Abstract: This invention relates to radiation hardenable primers based on prepolymers containing (meth) acryloyl groups and conventional auxiliary agents. The primers are characterized in that they contain organic and/or inorganic fibres having a fibre length distribution curve reaching its maximum in the region of from 50 to 600 .mu.m. These primers are suitable for coating articles which have absorbent surfaces, in particular for the continuous coating of wood-concrete articles such as wood-concrete boards.Type: GrantFiled: September 15, 1983Date of Patent: July 9, 1985Assignee: Bayer AktiengesellschaftInventors: Karl Fuhr, Hans-Joachim Freier
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Patent number: 4525513Abstract: The present invention is a flame retardant composition comprising from 5 to 20 weight percent of a homopolymer of a monomer having the formula: ##STR1## wherein n=0 or 1, X is bromine or chlorine and R is hydrogen or methyl. The polymer has a molecular weight between 1.times.10.sup.3 and 10.times.10.sup.6, and preferably 5.times.10.sup.3 to 5.times.10.sup.6. The molecular weight is determined by gel permeation chromatography in tetrahydrofuran. The composition contains from 80 to 95 weight percent of a polyamide. There can be from 0 to 10, preferably 1 to 10, and more preferably 2 to 6 weight percent of antimony oxide. Optionally, the composition can contain an impact modifier and/or a filler.Type: GrantFiled: December 27, 1982Date of Patent: June 25, 1985Assignee: Allied CorporationInventors: Arie Hochberg, John C. Haylock, Charles D. Mason
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Patent number: 4520159Abstract: Disclosed is a novel process for producing water-soluble, cationic resins containing halohydrin functionality from basic polyaminopolyamides containing secondary amine functionality without the use of epihalohydrin. The process of this invention comprises reacting the basic polyaminopolyamide in aqueous medium with an allyl halide to form allyl substituents on tertiary nitrogen atoms, converting the allyl substituents to halohydrin moieties by reaction with hypohalous acid and then maintaining the resulting solution at a pH of at least 7.0 until the Gardner-Holdt viscosity of the solution at 24% solids and 25.degree. C. reaches at least B.Type: GrantFiled: March 21, 1984Date of Patent: May 28, 1985Assignee: Hercules IncorporatedInventor: William W. Maslanka
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Patent number: 4517342Abstract: A heat curable composition is provided convertible to a high strength silicone elastomer. A norbornane silicone block copolymer having silicon hydride or silicon vinyl functional groups in the silicone block is used in combination with an effective amount of a platinum catalyst and a polyfunctional organosilicon material capable of undergoing a polyaddition reaction with the norbornane silicone block copolymer when thermally activated.Type: GrantFiled: May 11, 1984Date of Patent: May 14, 1985Assignee: General Electric CompanyInventor: Hong-Son Ryang
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Patent number: 4496694Abstract: Storage stable curing agents for acrylate adhesives, which curing agents are miscible with an acrylate resin adhesive, are produced by the mixing together of a polymerizable monomer, a thermoplast or elastomer soluble therein, and a liquid aldehyde/amine condensation product, and subsequent homogenisation of the mixture at elevated temperature. The curing agents, which optionally contain also stabilizers and curing accelerators, can be mixed with acrylate resin adhesives in any chosen quantity ratio between 2:1 and 1:2.Type: GrantFiled: April 18, 1983Date of Patent: January 29, 1985Assignee: Ciba-Geigy CorporationInventors: Imre Forgo, Jacques Francois
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Patent number: 4489185Abstract: Novel carbinol-containing polyimides capable of self-crosslinking at low temperatures are prepared by reacting a molar excess of selected 3,3',4,4'-benzhydrol tetracarboxylic acid compounds (the tetraacid, diester-diacid, or (dianhydride) with polyfunctional polyamines (e.g. 4,4'-methylenedianiline, 1,6-hexanediamine, etc.) in an inert organic solvent at about 100.degree.-150.degree. C. The molar ratio of tetracarboxylic acid compound to diamine must be between 2:1 and 9:8. The polyimides may be crosslinked at less than 200.degree. C. via a reaction between the carbinol group(s) and the end group(s) of the polyimide.Type: GrantFiled: September 26, 1983Date of Patent: December 18, 1984Inventor: Jules E. Schoenberg
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Patent number: 4481340Abstract: A photosensitive polyamic acid derivative obtained by treating polyamic acid with a compound of the formula (1), compound of formula (1), method of manufacturing a substrate having a polyimide layer by providing the substrate with a layer of the photosensitive polyamic acid derivative and then exposing, developing and imidizing the layer, as well as a semiconductor device comprising a polyimide layer obtained by using the above-mentioned method.Type: GrantFiled: January 24, 1983Date of Patent: November 6, 1984Inventors: Lourens Minnema, Johan M. van der Zande
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Patent number: 4473686Abstract: A block copolymer is produced fromI. 1 to 60% by weight of at least one telechelic diene polymer containing terminal carbonate ester, --OH--, --NH.sub.2 --, carboxylic acid or carboxylic acid ester groups and having a molecular weight M.sub.n of from about 400 to 1300, andII. 99 to 40% by weight of at least one polyamide or polyamide-forming component.Type: GrantFiled: June 1, 1983Date of Patent: September 25, 1984Assignee: Bayer AktiengesellschaftInventors: Ulrich Grigo, Karl-Heinz Kohler, Rudolf Binsack, Leo Morbitzer, Josef Merten, Ludwig Bottenbruch, Walter Heitz
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Patent number: 4471101Abstract: A new class of polyesteramides having improved properties is the reaction product of a polyol, an alkanolamine, a polycarboxylic acid and a norbornyl terminal group.Type: GrantFiled: November 4, 1983Date of Patent: September 11, 1984Assignee: The Dow Chemical CompanyInventors: Robert E. Hefner, Jr., James C. Uroda
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Patent number: 4451621Abstract: A heat resistant resin composition comprising a, polyamide imide resin having carboxyl groups and modified with an N-methylolated methacryl- or acryl- amide compound and, when desired, further with a bismaleimide compound. The composition has improved properties over conventional polyamide imide resins. When the composition is used, for example, in the form of a film for printed circuit boards, the film has improved heat resistance and enhanced flexural strength and is capable of withstanding soldering baths at high temperatures.Type: GrantFiled: December 23, 1982Date of Patent: May 29, 1984Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kazuya Yonezawa, Kazuaki Kira, Hiroshi Wakabayashi, Hirosaku Nagano
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Patent number: 4448956Abstract: Polyamides such as nylon-6 type polyamides are prepared by the reaction or copolymerization of a major amount by weight of a lactam and a minor amount by weight of a graft copolymer of maleic anhydride on a low molecular weight liquid conjugated diene polymer or copolymer or of a copolymer of a conjugated diene and a monovinyl aryl monomer or a nitrile. For example, a graft of maleic anhydride on liquid butadiene/acrylonitrile copolymer is copolymerized with epsilon-caprolactam using an anionic lactam polymerization catalyst (a lactamate salt) like the reaction product of ethyl magnesium bromide and epsilon-caprolactam. The present invention may be useful in a RIM (Reaction Injection Molding) process. The resulting polyamides have improved impact strength and water resistance. They can be used to make automobile and truck bodies and parts.Type: GrantFiled: May 10, 1983Date of Patent: May 15, 1984Assignee: The General Tire & Rubber CompanyInventors: Gerd M. Lenke, Earl G. Melby, Hubert J. Fabris
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Patent number: 4440916Abstract: Particles of two different normally solid materials are caused to react by generating free radicals on the surfaces of at least one of the solids by mechanical working, suitably by comminution, at cryogenic temperatures. At least one of the solids is preferably a polymeric material while the other may be a different polymer, a catalyst, a lubricity enhancing material, a filler, a pigment or the like.Type: GrantFiled: May 6, 1982Date of Patent: April 3, 1984Assignee: General Technology Applications, Inc.Inventors: Paul F. Waters, Thomas T. Scambos
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Patent number: 4431792Abstract: The compounds are of the class of aromatic polyamides useful as matrix resins in the manufacture of composites or laminate fabrication. The process for preparing this thermoplastic-thermoset polyamide system involves incorporating a latent crosslinking moiety along the backbone of the polyamide to improve the temperature range of fabrication thereof wherein the resin softens at a relatively low temperature (.congruent.154.degree. C.) and subsequently "sets-up" or undergoes crosslinking when subjected to higher temperature (.congruent.280.degree. C.).Type: GrantFiled: December 7, 1982Date of Patent: February 14, 1984Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Terry L. St. Clair, James F. Wolfe, Thomas D. Greenwood
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Patent number: 4429082Abstract: Ungelled reaction products of a condensation product with an amino silane are formed. The products are capable of curing at a low temperature to form durable coatings. Polyols can optionally be blended with the ungelled reaction products to provide useful coating compositions.Type: GrantFiled: May 10, 1982Date of Patent: January 31, 1984Assignee: PPG Industries, Inc.Inventors: Kyu-Wang Lee, John R. Peffer, Robert Piccirilli, Wen-Hsuan Chang
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Patent number: 4419498Abstract: Described is a novel process for producing quaternary ammonium compounds containing halohydrin functionality from tertiary amines without the use of epihalohydrin as the quaternization agent. The process of this invention comprises reacting an amino compound containing at least one tertiary amine group with an allyl halide to quaternize the amine and then reacting the quaternized product with hypohalous acid to convert the allyl substituents to halohydrin moieties.Type: GrantFiled: August 12, 1982Date of Patent: December 6, 1983Assignee: Hercules IncorporatedInventor: Ralph A. Bankert
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Patent number: 4418181Abstract: The compositions described herein comprise polyimides having bis-maleimide terminal groups and having the formula: ##STR1## wherein Q is a trivalent aromatic radical, Ar is a divalent aromatic radical, Ar" is a tetravalent aromatic radical and n has a value of 0-20. Derivatives may be made of these compounds by homopolymerization, copolymerization with other copolymerizable materials and by reaction with Diels-Alder reactable materials.Type: GrantFiled: May 26, 1981Date of Patent: November 29, 1983Assignee: Plastics Engineering CompanyInventor: Walter J. Monacelli
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Addition products of terminally unsaturated polyimide derivatives with a diaryl conjugated butadiyne
Patent number: 4404139Abstract: Novel, unsaturated diacteylene-terminated polyimides and processes for their preparation are disclosed herein. These new polyimides are derivatives of anhydride-terminated aromatic polyimides from which they can be prepared by amidation to provide new unsaturated amide groups having a terminal group containing the structure --C.tbd.C--C.tbd.C--, hereinafter sometimes referred to as "conjugated diynes". These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperature to crosslinked, insoluble, infusible polymers without by-product formation, thereby extending greatly the applications for which the aromatic polyimides can be employed. Moreover, these new polyimides can undergo the Diels-Alder type of addition with a large number of dienophiles. Certain monomeric materials are also described.Type: GrantFiled: March 2, 1982Date of Patent: September 13, 1983Assignee: Plastics Engineering CompanyInventors: Gaetano F. D'Alelio, deceased, Phillip A. Waitkus -
Patent number: 4397999Abstract: The present invention relates to oligomeric and/or polymeric precursor stages of polyimidazoles and polyimidazopyrrolones, as well as to a method for preparing these new precursor stages. The invention provides addition products of olefinically unsaturated monoepoxides on amino group-containing polycondensation products of aromatic and/or heterocyclic tetraamino compounds with dicarboxylic-acid chlorides or esters or on amino group-containing polyaddition products of the tetraamino compounds and tetracarboxylic-acid dianhydrides. The radiation-reactive precursor stages according to the invention are suited, for example, for the preparation of highly heat-resistant relief structures.Type: GrantFiled: August 19, 1980Date of Patent: August 9, 1983Assignee: Siemens AktiengesellschaftInventors: Hellmut Ahne, Eberhard Kuhn, Roland Rubner
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Patent number: 4398009Abstract: The invention relates to oligomeric and/or polymeric precursor stages of polyoxazoles, as well as to a method for the preparation of these precursor stages. New radiation-reactive polymer precursor stages are provided comprised of addition products of olefinically unsaturated monoepoxides on hydroxyl group-containing polycondensation products of aromatic and/or heterocyclic dihydroxy diamino compounds with dicarboxylic-acid chlorides or esters. The radiation-reactive precursor stages according to the invention are suitable, for example, for the preparation of highly heat-resistant relief structures and as coatings for the optical fibers of light waveguides.Type: GrantFiled: August 19, 1980Date of Patent: August 9, 1983Assignee: Siemens AktiengesellschaftInventors: Hellmut Ahne, Eberhard Kuhn, Roland Rubner
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Patent number: 4387192Abstract: A heat resistant resin composition comprising a polyamide imide resin having carboxyl groups and modified with an N-methylolated methacryl- or acryl-amide compound and, when desired, further with a bismaleimide compound. The composition has improved properties over conventional polyamide imide resins. When the composition is used, for example, in the form of a film for printed circuit boards, the film has improved heat resistance and enhanced flexural strength and is capable of withstanding soldering baths at high temperatures.Type: GrantFiled: July 9, 1980Date of Patent: June 7, 1983Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kazuya Yonezawa, Kazuaki Kira, Hiroshi Wakabayashi, Hirosaku Nagano
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Patent number: 4385165Abstract: The present invention relates to oligomeric and/or polymeric radiation-reactive precursor stages of polyimides, polyisoindoloquinazoline diones, polyoxazine diones and polyquinazoline diones as well as to a method for the preparation of these radiation-reactive precursor stages. The invention provides addition products of olefinically unsaturated monoepoxides on carboxyl group-containing polyaddition products of aromatic and/or heterocyclic tetracarboxylic-acid dianhydrides and diamino compounds or diamino compounds with at least one ortho-position amido group, or on carboxyl group-containing polyaddition products of aromatic and/or heterocyclic dihdyroxy dicarboxylic acids or corresponding diaminodicarboxylic acids and diisocyanates. The radiation-reactive precursor stages according to the invention are suitable, for example, for the manufacture of highly heat-resistant relief structures.Type: GrantFiled: August 19, 1980Date of Patent: May 24, 1983Assignee: Siemens AktiengesellschaftInventors: Hellmut Ahne, Eberhard Kuhn, Roland Rubner
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Patent number: 4379887Abstract: An adhesive composition is produced by reacting a thermoplastic polyamide having reactive amine groups attached to the polyamide molecule with a vinyl terminated rubber, preferably a vinyl terminated polybutadiene rubber.The adhesive composition exhibits good peel strengths at high temperatures together with good low temperature flexibility.Type: GrantFiled: March 31, 1982Date of Patent: April 12, 1983Assignee: Raychem CorporationInventor: Noel M. M. Overbergh
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Patent number: 4378448Abstract: A polyamide suitable as a hot-melt adhesive contains pendent graft copolymerized chains derived from aromatic compounds having an olefinically unsaturated moiety, e.g., styrene, lower methacrylates, epoxy-containing unsaturated compounds, acrylonitrile or methacrylonitrile, but contains no free graft comonomer.The polyamides show improved peel strengths, especially at low and high temperatures. The low temperature properties may be further improved by incorporating an elastomer, preferably a thermoplastic elastomer, part of which is compatible with the graft copolymerized chains.Type: GrantFiled: September 29, 1980Date of Patent: March 29, 1983Assignee: Raychem CorporationInventors: George B. Park, John M. Senior
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Patent number: 4377668Abstract: Photo-crosslinkable, novel polymers with side tricyclic imidyl groups, for example those of the formula ##STR1## are described. The novel photo-crosslinkable polymers are suitable for photo-mechanical applications, for example for the production of printing plates for the offset printing process and especially as photo-resists. They have high UV absorption and ensure a high rate of crosslinking even without the addition of photosensitizers.Type: GrantFiled: March 6, 1981Date of Patent: March 22, 1983Assignee: Ciba-Geigy CorporationInventors: Hans Zweifel, Daniel Bellus
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Patent number: 4376188Abstract: Compositions are described, which are blow-moldable into shaped articles, comprising a reaction product between polycaprolactam, aminoalkyltrialkoxysilane and a catalytic amount of water. The compositions have a melt index of about 2.25 g/10 min. or below and are substantially free of trialkoxysilane groups. Preferred compositions also contain ethylene/vinyl acetate copolymer as an impact modifier to increase the impact strength of blow-molded articles made therefrom, such as bottles.Type: GrantFiled: June 12, 1981Date of Patent: March 8, 1983Assignee: Allied CorporationInventor: Ghazi M. A. Khattab
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Patent number: 4371673Abstract: Two types of water soluble complexes of retinoids possessing vitamin A-like biological activity and use but of lower toxicity are disclosed: (A) Cyclodextrin complexes of retinoid-polymers and (B) Complexes of retinoids with ether type derivatives of cyclodextrins.Type: GrantFiled: July 21, 1980Date of Patent: February 1, 1983Assignee: The United States of America as represented by the Secretary of the Department of Health and Human ServicesInventor: Josef Pitha
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Patent number: 4369036Abstract: The present invention discloses a method of modifying a synthetic or natural polyamide product. A graft polymerization is carried out on the polyamide product in a solution containing 5 to 60 mole % of acrylic acid and 95 to 40 mole % of methacrylic acid as the monomer by means of a redox catalyst.Type: GrantFiled: December 4, 1980Date of Patent: January 18, 1983Assignee: Toray Industries, Inc.Inventors: Koichi Saito, Tatsuku Kojima, Yoshikazu Kosaka
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Patent number: 4365034Abstract: A composition of matter comprising an acetylene-terminated polyimide oligomer and a cure rate inhibitor selected from the group consisting of hydroquinone, maleic acid, glutaric acid, dibetanapthyl para-phenylene diamine. The composition has a retarded cure rate, thereby facilitating the fabrication of void-free molded objects and composites.Type: GrantFiled: September 21, 1981Date of Patent: December 21, 1982Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Mark F. Grimes, Theodore J. Reinhart, Jr.
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Patent number: 4363894Abstract: Shaped articles having improved mechanical strengths are comprised of (i) a nylon polyamide resin, (ii) a reinforcing amount of glass fibers therefor, and (iii) an impact strength increasing amount of a (meth)acrylic compound having the structural formula:[CH.sub.2 .dbd.CR--CO--A].sub.n X (I)wherein R is hydrogen or methyl, n is an integer equal to 2, 3 or 4, A is the linkage --O-- or --NH-- and X is an organic radical of valency n selected from the group consisting of linear or branched chain alkylene radical having from 1 to 20 carbon atoms, such alkylene radical comprising one or more chain-interrupting oxygen bridges and/or one or more hydroxyl groups, an aralkylene radical wherein the aryl moiety contains from 6 to 10 carbon atoms and the alkylene moiety is as defined above, such aralkylene radical comprising one or more alkylene chain-interrupting oxygen bridges, and a triazino heterocycle.Type: GrantFiled: December 5, 1980Date of Patent: December 14, 1982Assignee: Rhone-Poulenc IndustriesInventor: Jean-Louis Locatelli
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Patent number: 4362826Abstract: A composition comprising a varnish of heat-resistant resin having active hydrogen in the molecule and a bismaleimide compound or derivative thereof admixed with the varnish affords a heat-resistant resin product of improved properties. Especially when a bismaleimide compound or derivative thereof is added to a varnish of polyimide resin having active hydrogen in the molecule and the composition is applied to a metal film substrate to form a resin film, the film has improved peel strength and, in itself, also has improved strength and elongation.Type: GrantFiled: May 14, 1981Date of Patent: December 7, 1982Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kazuya Yonezawa, Hirosaku Nagano
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Patent number: 4359556Abstract: Hot melt adhesive compositions are provided which contain 40-98 weight % of a thermoplastic polyamide resin derived from a dimer acid and a low molecular weight aliphatic diamine, and 2-60 weight % of an alkenyl succinic anhydride.Type: GrantFiled: June 5, 1981Date of Patent: November 16, 1982Assignee: Gulf Oil CorporationInventors: Pallavoor R. Lakshmanan, Benedict J. Monachino
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Patent number: 4354006Abstract: Described is a novel process for producing quaternary ammonium compounds containing halohydrin functionality from tertiary amines without the use of epihalohydrin as the quaternization agent. The process of this invention comprises reacting an amino compound containing at least one tertiary amine group with an allyl halide to quaternize the amine and then reacting the quaternized product with hypohalous acid to convert the allyl substituents to halohydrin moieties.Type: GrantFiled: May 30, 1980Date of Patent: October 12, 1982Assignee: Hercules IncorporatedInventor: Ralph A. Bankert
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Patent number: 4346214Abstract: Polyester amide silicate resinous products are produced by heating a mixture of an oxidated silicon compound, polyhydroxy compound, a polycarboxylic acid and/or polycarboxylic acid anhydride and a polyamine in the presence of an alkali catalyst.Type: GrantFiled: August 31, 1981Date of Patent: August 24, 1982Inventor: David H. Blount
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Patent number: 4343923Abstract: A method for decreasing a polyamide textile material's affinity for acid dyes, which comprises pretreating the textile material with an acylimidazole compound.Type: GrantFiled: August 7, 1980Date of Patent: August 10, 1982Assignee: Armstrong World Industries, Inc.Inventors: Ronald S. Lenox, Anne L. Schwartz
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Patent number: 4327013Abstract: This invention is directed to a curable molding composition which comprises a mixture of (a) one or more fibers with a melting point or a glass transition temperature above about 130.degree. C., (b) a poly(acrylate) characterized by the following empirical formula: ##STR1## wherein R is the hydroxy-free residue of an organic polyhydric alcohol which contained alcoholic hydroxyl groups bonded to different carbon atoms, R.sub.1 and R.sub.2 are independently hydrogen or methyl, n is 1 to 3 (c) an ethylenically unsaturated monomer which is soluble in and copolymerizable with (b), and (d) an elevated temperature free-radical curing catalyst capable of affecting the co-reaction of (b) with (c), said mixture containing (i) from about 15 to about 80 weight percent of (a), (ii) from about 5 to about 60 weight percent of (b), and (iii) from about 5 to about 60 weight percent of (c), and (iv) from about 0.2 to about 3 weight percent of (d), and wherein (b) plus (c) has a viscosity of from about 1 to about 50 centipoise.Type: GrantFiled: March 27, 1980Date of Patent: April 27, 1982Assignee: Union Carbide CorporationInventor: Edward N. Peters
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Patent number: 4317894Abstract: Coating compositions consist essentially of (a) ethylenically unsaturated monomers, (b) polyol-containing curable resins, (c) resins having ethylenic unsaturation and (d) solvent. The compositions are especially useful for the coating of products made from sheet molding compounds.Type: GrantFiled: December 11, 1979Date of Patent: March 2, 1982Assignee: PPG Industries, Inc.Inventors: Ronald J. Lewarchik, Betty J. Carter
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Patent number: 4316843Abstract: Novel compositions comprising unsaturated polyimide-polyamides and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide unsaturated amide groups having terminal --CH.dbd.CH.sub.2 groups. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing unsaturated amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.Type: GrantFiled: January 25, 1980Date of Patent: February 23, 1982Assignee: Plastics Engineering CompanyInventors: Phillip A. Waitkus, Gaetano F. D'Alelio
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Patent number: 4316844Abstract: Novel compositions comprising unsaturated polyhemi-amic acid compositions and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide unsaturated amide groups having terminal --CH.dbd.CH.sub.2 groups as hemi-amic acid groups or their derivatives. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing unsaturated amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.Type: GrantFiled: January 25, 1980Date of Patent: February 23, 1982Assignee: Plastics Engineering CompanyInventors: Phillip A. Waitkus, Gaetano F. D'Alelio
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Patent number: 4316974Abstract: An organic polar solvent-soluble aromatic polyamide-imide having therein aromatic nuclei linked at their respective 1 - and 3 - positions and having therein amide linkages and terminal groups unsubstituted or partially substituted with acrylate or methacrylate groups is found to impart excellent heat resistance and insulating property to a photoresist composition produced therefrom.Type: GrantFiled: December 17, 1979Date of Patent: February 23, 1982Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Kaoru Ohmura, Ichiro Shibasaki, Takeo Kimura
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Patent number: 4316845Abstract: Novel compositions comprising acetylenic polyimide-polyamides and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide acetylenic amide groups having terminal --C.dbd.CH groups. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing acetylenic amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.Type: GrantFiled: January 25, 1980Date of Patent: February 23, 1982Assignee: Plastics Engineering CompanyInventors: Gaetano F. D'Alelio, Phillip A. Waitkus
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Patent number: 4310641Abstract: An organic polar solvent-soluble aromatic polyamide-imide having therein aromatic nuclei linked at their respective 1 - and 3 -positions and having therein amide linkages and terminal groups partially substituted with cinnamate groups is found to impart excellent heat resistance and insulating property to a photoresist composition produced therefrom.Type: GrantFiled: August 1, 1979Date of Patent: January 12, 1982Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Kaoru Ohmura, Ichiro Shibasaki, Takeo Kimura, Muneaki Kimura
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Patent number: 4291142Abstract: Aromatic polyamide film, having an excellent thermal resistance and a high dielectric breakdown strength, which comprises an aromatic polyamide containing repeating units of the formula----NH--Ar.sub.1 --CO----or----NH--Ar.sub.1 --NHCO--Ar.sub.2 --CO----and cross-linked with a cross-linking compound having at least one radical selected fromR.sup.1 --C(R.sup.2).dbd.C--CH.sub.2 (R.sup.3)--,R.sup.1 --C(R.sup.2).dbd.CR .sup.3 --,R.sup.1 --C(R.sup.2).dbd.C(R.sup.3)--COO--andR.sup.1 --C(R.sup.2).dbd.C(R.sup.3)--CONH--,or another cross-linking cyanuric or isocyanuric acid compound, by means of heat, ultraviolet rays or electron beam.Type: GrantFiled: July 6, 1979Date of Patent: September 22, 1981Assignee: Teijin, LimitedInventors: Yorikazu Tamura, Akihiro Aoki, Keizo Shimada
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Patent number: 4288221Abstract: A curable composite direct filling composition, comprising a polymerizable resin containing at least one acrylic monomer and a finely divided organic filler having an Izod milled notch strength of at least about 1 joule/cm and a flexural strength of at least about 34 MPa.Type: GrantFiled: January 28, 1980Date of Patent: September 8, 1981Assignee: Minnesota Mining and Manufacturing CompanyInventor: Michael R. Engel
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Patent number: 4277581Abstract: A cosmetic composition for the hair comprises at least one water-soluble crosslinked polymer obtained by crosslinking a polyamino-polyamide with a crosslinking agent, said polyamino-polyamide being prepared by the polycondensation of (a) an acidic compound selected from the group consisting of (i) organic dicarboxylic acid, (ii) ethylenically unsaturated aliphatic mono- or di-carboxylic acid, (iii) ester of said acids of (i) and (ii), and (iv) mixtures of (i), (ii) and (iii) on (b) a polyamine selected from the group consisting of bis-primary and mono- and bis-secondary polyalkylene polyamines, said polyamine (b) being replaceable by a member selected from the group consisting of (1) 0-20 mole percent hexamethylene diamine, (2) 0-40 mole percent bis-primary amine and (3) 0-40 mole percent bis-secondary amine, said crosslinking agent being selected from the group consisting of (a') simple bi-functional compounds selected from bis-halohydrins, bis-azetidinium, bis-haloacyl diamine and alkyl bis-halides, (b') olType: GrantFiled: July 16, 1979Date of Patent: July 7, 1981Assignee: L'OrealInventors: Guy Vanlerberghe, Henri Sebag, Jean-Francois Grollier, Alexandre Zysman
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Patent number: 4273892Abstract: Hydrophilic polyolefin fibers may be prepared, for example, by discharging a heated and pressurized solution of an anionic polyolefin composition containing carboxylic functionality into a zone of reduced temperature and pressure, and then modifying the fibers so produced by treatment with an aqueous admixture of selected cationic and anionic water-soluble, nitrogen-containing polymers. Blends of the hydrophilic fibers with wood pulp provide paper products having improved physical properties.Type: GrantFiled: January 25, 1979Date of Patent: June 16, 1981Assignee: Hercules IncorporatedInventor: Terence W. Rave
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Patent number: 4255313Abstract: The products of the invention are end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic acid such as 3,3'4',4'-benzophenonetetracarboxylic acid, an aromatic diamine, and a 1-(aminoaryl)-3-hydroxy-3-methyl-1-butyne. The structure of the polyimide oligomers is shown in FIG. 3.Type: GrantFiled: April 20, 1979Date of Patent: March 10, 1981Assignee: Gulf Oil CorporationInventors: Patricia A. Antonoplos, William J. Heilman
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Patent number: 4251417Abstract: The products of the invention are acetylene end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic acid such as 3,3',4,4' benzophenonetetracarboxylic acid, an aromatic triamine, and an acetylene-substituted aromatic monoamine. The structure of the polyimide oligomers is shown in FIG. 3.Type: GrantFiled: April 25, 1979Date of Patent: February 17, 1981Assignee: Gulf Oil CorporationInventors: Wai Y. Chow, William J. Heilman
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Patent number: RE30922Abstract: The products of the invention are vinyl end-capped oligomers which are prepared from 2,4-bis (p-aminobenzyl) aniline and a vinyl substituted aromatic monoamine, the principal component of which is the compound whose structure is shown in FIG. 3. The products are prepared from either of two (2) precursors. The first precursor is a compound whose structure is shown in FIG. 2 and which is prepared from 2,4-bis (p-aminobenzyl) aniline, a dianhydride of an aromatic tetracarboxylic acid such as 3,3'4,4'-benzophenonetetracarboxylic acid (BTDA) and a vinyl substituted aromatic monoamine, such as 3-aminophenyl-ethylene (APE). The second precursor is a complex amine salt having the structure shown in FIG. 6 and which is prepared from 2,4-bis-(p-aminobenzyl) aniline, a dialkyl ester of BTDA and APE.Type: GrantFiled: August 25, 1980Date of Patent: May 4, 1982Assignee: Gulf Oil CorporationInventors: William J. Heilman, Daniel J. Hurley