With Nitrogen-containing Reactant Patents (Class 528/211)
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Patent number: 4771091Abstract: Novel diazaspirodecanes of the general formula ##STR1## are prepared from known diazaspirodecane compounds and epoxy compounds or by reacting diazaspirodecane-substituted epoxy compounds with alcohols or amines and are excellent light stabilizers for synthetic polymers.Type: GrantFiled: November 24, 1986Date of Patent: September 13, 1988Assignee: Hoechst AktiengesellschaftInventor: Josef Ertl
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Patent number: 4769437Abstract: Phenolic resins are produced by reacting a substituted alcohol or epoxy compound with a phenol compound in the presence of an alkali salt-forming compound. The phenolic resin may be utilized as molding material, as a coating agent and as an adhesive.Type: GrantFiled: September 18, 1987Date of Patent: September 6, 1988Inventor: David H. Blount
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Patent number: 4764587Abstract: A cross-linked resin produced by the reaction of a bis(2-oxazoline) compound with a dicarboxylic acid anhydride, and optionally also with at least one selected from the group consisting of a dicarboxylic acid, a hydroxy-carboxylic acid, a diol and water, in the presence of at least one catalyst selected from the group consisting of an organic phosphorous acid ester, an organic phosphonous acid ester and an inorganic salt at an elevated temperature. The cross-linked resin has a high mechanical strength and a high resistance to organic solvents.The resin composition comprising the cross-linked resin and reinforcements materials and/or fillers combined therewith has outstanding heat-resistance and mechanical properties.Type: GrantFiled: October 29, 1985Date of Patent: August 16, 1988Assignee: Takeda Chemical Industries, Ltd.Inventors: Yasuo Sano, Yasuhiro Morisue, Kiyoshi Komiya, Yoshimasa Nakamura
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Patent number: 4764578Abstract: The disclosed compositions of polyaryloxypyridine oligomers with phthalonile end groups are obtained by formation of a composition of polyaryloxypyridine oligomers with alkali phenolate end groups, followed with the reaction of said composition with 4-nitrophthalonitrile. Their average polycondensation degree may range from 1 to 50. They can be used in combination with a co-reactant derived from benzhydrol and containing one or two ortho-dinitrile functional groups, to constitute polyaryloxypyridine co-polyphthalocyanine lattices.Type: GrantFiled: September 16, 1986Date of Patent: August 16, 1988Assignee: Centre d'Etude des Materiaux Organiques pour Technologies AvanceesInventors: Jean Malinge, Guy Rabilloud, Bernard Sillion
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Patent number: 4755584Abstract: Disclosed is a polyester carbonate containing imido groups comprising recurring units represented by the following formula: ##STR1## and recurring units represented by the following formula:--O--Ar--O--CO-- (2)wherein Ar represents a divalent aromatic hydrocarbon group selected from the group consisting of ##STR2## with a mole fraction of the recurring units shown by the formula (1) being 0.2 to 0.8, and having a reduced viscosity [.eta.sp/C] of 0.3 dl/g or more at 60.degree. C. in a solution in which the polyester carbonate is dissolved in p-chlorophenol as a solvent at a concentration of 0.2 g/dl.Further disclosed is a process for producing the same which comprises allowing 4-carboxy-N-(3-hydroxyphenyl)-phthalimide to react with a divalent phenol represented by the following formula:HO--Ar--OH (3)wherein Ar has the same meaning as above,and diphenyl carbonate.Type: GrantFiled: August 27, 1986Date of Patent: July 5, 1988Assignee: Idemitsu Kosan Company LimitedInventors: Tatsuya Tomioka, Shigeru Murakami
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Patent number: 4751323Abstract: This invention relates to a polyaromatic cyanate which corresponds to the formula ##STR1## wherein Ar is an aromatic radical;B is a C.sub.7-20 polycyclic aliphatic radical;D is independently in each occurrence any non-active hydrogen-containing substituent;q, r and s are independently in each occurrence the integers b 0, 1, 2, l or b 3l ; with the proviso that the sum of q, 4 and s is greater than or equal to 2;t is independently in each occurrence an integer of between about 0 and 4 inclusive; andx is a number between about 0 and 5 inclusive.Another aspect of this invention is a novel polytriazine which comprises the reaction product of the polyaromatic cyanate esters of this invention. The novel polytriazines may further comprise the reaction product of the novel polyaromatic cyanates of this invention in admixture with other cyanates known in the art as useful for the preparation of polytriazines.Type: GrantFiled: November 16, 1983Date of Patent: June 14, 1988Assignee: The Dow Chemical CompanyInventors: Edmund P. Woo, Daniel J. Murray
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Patent number: 4748230Abstract: A process for the copolymerization of bis-2-oxazolines and polyphenolic compounds at greatly improved rates comprising carrying out the copolymerization in the presence of from about 0.5 to about 5% by weight of a phosphine catalyst is described.Type: GrantFiled: March 27, 1987Date of Patent: May 31, 1988Assignee: Ashland Oil, Inc.Inventors: Omar Tiba, Billy M. Culbertson, Marvin L. Deviney, Anil B. Goel
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Patent number: 4746719Abstract: A process for preparing copolymers of a mixture of a bis-oxazoline and a polyphenolic compound at improved rate of copolymerization by the inclusion of a catalytic amount of a carbonium ion salt of the formula Ph.sub.3 CX wherein Ph represents a phenyl group and X represents BF.sub.4, PF.sub.6, SbF.sub.6, AsF.sub.6, BPh.sub.4 or ClO.sub.4, is described.Type: GrantFiled: June 3, 1987Date of Patent: May 24, 1988Assignee: Ashland Oil, Inc.Inventors: Anil B. Goel, Omar Tiba
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Patent number: 4742150Abstract: Polyetheramideimide is provided and method for making. There are utilized aromatic bis(etheranhydride) and diaminobenzanilide or mixtures thereof with an organicdiamine. The polyetheramideimide has been found to have improved solvent resistance.Type: GrantFiled: September 25, 1986Date of Patent: May 3, 1988Assignee: General Electric CompanyInventors: John W. Verbicky, Jr., Elbridge A. O'Neil, Mark J. Bausch
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Patent number: 4740584Abstract: Blends of ortho substituted dicyanate esters and unsubstituted dicyanate esters when partially reacted to form co-prepolymers are appreciably lower in viscosity at process temperatures than the homo-prepolymers of a particular dicyante. When cured, the blends exhibit excellent heat and moisture resistance properties. The cured compositions are useful in structural composites, filmed structural adhesives and printed wiring boards.Type: GrantFiled: September 8, 1986Date of Patent: April 26, 1988Assignee: Interez, Inc.Inventor: David Shimp
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Patent number: 4738787Abstract: The present application relates to cationic block polyesters useful as soil relese agents, softeners and antistatic agents. In addition to cleaning performance, laundry detergent compositions should have other benefits. One is the ability to impart soil release properties to fabrics woven from polyester fibers.Type: GrantFiled: May 26, 1987Date of Patent: April 19, 1988Assignee: Alkaril Chemicals Inc.Inventors: Anthony J. O'Lenick, Jr., Joseph J. Fanelli
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Patent number: 4739029Abstract: A polymeric tricarbocyanine dye has a rigidized chain having tricarbocyanine polymeric dye units of formula II: ##STR1## wherein Y is ##STR2## --S--, --Se--, or --O--, A is ##STR3## in which R.sup.19 is alkyl, --Cl, amino, alkyl (C.sub.1 to C.sub.4) substituted amino, phenyl, or cyclic amino, andp is 0 or 1,R.sup.4 and R.sup.5 independently are --H, C.sub.6 H.sub.5 SO.sub.2 --, or CF.sub.3 SO.sub.2 --,W is a dye anion,m is an integer 1 to 20, andn is an integer 2 to 10,000.Type: GrantFiled: April 16, 1987Date of Patent: April 19, 1988Assignee: Minnesota Mining and Manufacturing CompanyInventor: Mohamed A. Elmasry
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Patent number: 4739031Abstract: A process for preparing novel poly(arylene ether-amide) polyols and their use in the formation of polyurethanes wherein the poly(arylene ether-amide) polyols are formed by reaction of a bicyclic amide acetal with a polyphenolic compound are described.Type: GrantFiled: May 12, 1987Date of Patent: April 19, 1988Assignee: Ashland Oil, Inc.Inventor: Anil B. Goel
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Patent number: 4734457Abstract: A process is disclosed for stabilization of natural rubber against oxidative degradation by incorporating therein phenolic derivatives of 3-hydroxymethyl-5-hydroxymethylthio-1,3,4-thiadiazolidine-2-thione and stabilized rubber compositions thereof.Type: GrantFiled: May 7, 1987Date of Patent: March 29, 1988Assignee: R. T. Vanderbilt Company, Inc.Inventor: Lester A. Doe, Jr.
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Patent number: 4732963Abstract: Thermosetting bis(isoimide) resins are prepared by the reaction of an ethylenically unsaturated bis(isoimide) with a dihydric phenol.Type: GrantFiled: February 6, 1987Date of Patent: March 22, 1988Inventors: Robert L. Wank, John D. Harper
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Patent number: 4720538Abstract: A method of manufacturing polyamides from aromatic dicarboxylic acids and aromatic diamines in the presence of catalytic amounts of a phosphorous-containing catalyst and a 4-diakylaminopyridine as cocatalyst, at temperatures above 180.degree. C., is described.Type: GrantFiled: July 24, 1986Date of Patent: January 19, 1988Assignee: Huls AktiengesellschaftInventor: Martin Bartmann
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Patent number: 4711911Abstract: Phenolic resins are produced by reacting a substituted alcohol or epoxy compound with a phenol compound in the presence of an alkali salt-forming compound. The phenolic resin may be utilized as molding material, as a coating agent and as an adhesive.Type: GrantFiled: December 22, 1986Date of Patent: December 8, 1987Inventor: David H. Blount
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Patent number: 4709006Abstract: A polymer having repeating units of the general formula ##STR1## wherein BB is a benzobisaxazole, benzobisthiazole or benzobisimidazole group and Y is a phenolic, pyridyl or phenoxyphenyl group.Type: GrantFiled: April 16, 1986Date of Patent: November 24, 1987Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Tsu-Tzu Tsai, Fred E. Arnold
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Patent number: 4709008Abstract: Blends of tricyanate esters and dicyanate esters when cured exhibit excellent heat and moisture resistant properties. The cured compositions are useful in structural composites, filmed structural adhesive and printed wiring boards.Type: GrantFiled: June 30, 1986Date of Patent: November 24, 1987Assignee: Interez, Inc.Inventor: David A. Shimp
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Patent number: 4703104Abstract: There are disclosed a novel copolymer comprising having recurring unit represented by the formula: ##STR1## wherein Y represents a phenylene group or a naphthylene group, with a recurring number of k and a recurring unit represented by the formula: ##STR2## wherein Ar represents a divalent aryl group, with a recurring number of l, a value of k/(k+l) is 0.5 to 0.97 and having a reduced viscosity [.eta..sub.sp/c ] of 0.3 dl/g or higher as measured in p-chlorophenol solution at a concentration of 0.2 g/dl at 60.degree. C.Type: GrantFiled: February 10, 1986Date of Patent: October 27, 1987Assignee: Idemitsu Kosan Company LimitedInventors: Shigeru Matsuo, Tomoyoshi Murakami, Ryuichi Takasawa
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Patent number: 4699970Abstract: The process for preparing a polymeric composition at improved rate comprising reacting an oxazoline compound and a phenolic compound in the presence of a catalytic amount of a phosphorous acid ester is described.Type: GrantFiled: June 30, 1986Date of Patent: October 13, 1987Assignee: Ashland Oil, Inc.Inventors: Omar Tiba, Billy M. Culbertson
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Patent number: 4699933Abstract: The present invention is directed to polyurethane compositions containing triazine or both triazine and oxazoline or imino carbamate groups which are prepared by reacting:1.(a) at least one alkoxylated hydroxy aromatic oligomer containing at least one triazine group, or(b) at least one alkoxylated hydroxy aromatic oligomer containing at least one triazine group and at least one oxazoline group, or(c) at least one alkoxylated hydroxy aromatic oligomer containing at least one triazine group and at least one imino carbamate group, or(d) at least one alkoxylated hydroxy aromatic oligomer containing at least one triazine group and at least one other N-heterocyclic group, or(e) a mixture of the above and2. at least one material having more than one isocyanate group per moleculewherein the components are employed in proportions which provide a ratio of isocyanate groups to hydroxy groups of from about 0.05:1.0 to about 10.0:1.0, preferably from about 0.95:1.0 to about 1.5:1.0.Type: GrantFiled: October 14, 1986Date of Patent: October 13, 1987Assignee: The Dow Chemical CompanyInventors: Robert E. Hefner, Jr., Mary N. White
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Patent number: 4678839Abstract: Mixtures of polyphenylene ethers, lactams such as .epsilon.-caprolactam and lactam polymerization catalysts, preferably basic reagents, may be polymerized. There is preferably also present a lactam polymerization promoter, especially a functionalized polyphenylene ether. Polymerization produces resinous compositions including phenylene etheramide copolymers, especially block and/or graft copolymers. Said resinous compositions may be molded into articles having a number of advantageous properties.Type: GrantFiled: July 8, 1985Date of Patent: July 7, 1987Assignee: General Electric CompanyInventors: John E. Hallgren, Peter P. Policastro, Herbert S. Chao, Bruce C. Johnson
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Patent number: 4677182Abstract: Ionene elastomers are prepared by reaction of polymeric diamines and certain dihalide linking agents. These elastomers have utility in coating compositions, adhesive compositions, and in the fabrication of elastomeric articles. Certain novel dihalide linking agents are also claimed.Type: GrantFiled: November 25, 1985Date of Patent: June 30, 1987Assignee: Minnesota Mining and Manufacturing Co.Inventors: Charles M. Leir, John E. Stark
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Patent number: 4675371Abstract: 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: GrantFiled: May 2, 1986Date of Patent: June 23, 1987Assignee: Ashland Oil, Inc.Inventor: Anil B. Goel
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Patent number: 4665154Abstract: Novel compositions of matter comprise homogeneous thermoset copolymers resulting from the reaction between a poly(vinyl benzyl ether) of a polyphenol and a dicyanate ester of a polyether of a polyphenol may be used as components in laminates which are employed in electronic circuit boards. The copolymers will impart desirable characteristics such as high glass transition temperatures and low dielectric constants to the finished product.Type: GrantFiled: June 6, 1986Date of Patent: May 12, 1987Assignee: Allied CorporationInventors: William D. Varnell, Thomas D. Newton
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Patent number: 4663427Abstract: A process for preparing a polycyanoaryl ether powder which comprises;reacting at a temperature between 100.degree. and 350.degree. C. a dihalogenobenzonitrile with an alkali metal salt of at least one of hydroquinone and dihydroxydiphenyl in the presence of a solvent (i) selected from the group consisting of dimethyl sulfoxide, diethyl sulfoxide, sulfolane, N-methylpyrrolidone, N-methylacetoamide and N-methylformamide to form a reaction mixture containing a dissolved polycyanoaryl ether; andwhen the concentration of said dissolved polycyanoaryl ether in the reaction mixture is in the range of from 2 to 15% by weight, adding to said reaction mixture, a solvent (ii) which is miscible with said solvent (i) but which is not a solvent for said polycyanoaryl ether, said solvent (ii) being added in an amount of from 30 to 200% by volume based on the volume of said solvent (i) and said solvent (ii) being added at a temperature of from 10.degree. to 100.degree. C.Type: GrantFiled: December 19, 1985Date of Patent: May 5, 1987Assignee: Idemitsu Kosan Company LimitedInventors: Shigeru Matsuo, Tomoyoshi Murakami
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Patent number: 4652620Abstract: The disclosure is directed to thermoset resinous compositions having utility in the area of surface coating and molding applications, the latter including the preparation of high performance composites and the use in reaction injection molding processes. The contemplated compositions are obtained by polymerizing a reaction mixture comprising a polyfunctional 2-oxazoline compound, a compound or oligomer containing a plurality of aromatic hydroxyl groups and a polyfunctional epoxide.Type: GrantFiled: October 4, 1985Date of Patent: March 24, 1987Assignee: Ashland Oil, Inc.Inventors: Timothy A. Tufts, Billy M. Culbertson
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Patent number: 4640974Abstract: Polycyanoaryl ether stretched films and fibers prepared from polycyanoaryl ethers containing specific repeating units and number-average molecular weights or reduced viscosities by stretching molded films or melt-spinned fibers, said films and fibers having superior heat resistance and mechanical strength.Type: GrantFiled: February 18, 1986Date of Patent: February 3, 1987Assignee: Idemitsu Kosan Company LimitedInventors: Shigeru Matsuo, Tomoyoshi Murakami
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Patent number: 4640975Abstract: A polycyano aryl ether which has recurring units each represented by the formula: ##STR1## and a reduced viscosity of which is 0.3 dl/g or more at 60.degree. C. in a solution in which the polycyanoaryl ether is dissolved in p-chlorophenol in a concentration of 0.2 g/dl.A method for preparing the above-mentioned polycyanoaryl ether which comprises reacting a dihalogenobenzonitrile represented by the formula: ##STR2## wherein X is a halogen atom, with an alkali metal salt of dihydroxynaphthalene represented by the formula: ##STR3## wherein M is an alkali metal, in the presence of a solvent.Type: GrantFiled: December 26, 1985Date of Patent: February 3, 1987Assignee: Idemitsu Kosan Company LimitedInventors: Shigeru Matsuo, Tomoyoshi Murakami
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Patent number: 4639505Abstract: The process for preparing novel polymers containing ether-amide groups by reaction of a bis- or poly-bicyclic amide acetal with a bis-phenolic or poly-phenolic material at a temperature of from about 80.degree. C. to 200.degree. C. is described.Type: GrantFiled: August 7, 1985Date of Patent: January 27, 1987Assignee: Ashland Oil, Inc.Inventor: Anil B. Goel
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Patent number: 4613662Abstract: A process comprising copolymerizing an oxazoline with a bis-or poly-phenolic compound in the presence of a catalyst which is a cationic complex of an alkali or an alkaline earth metal at a temperature in the range of from about 100.degree. to 200.degree. C. is described.Type: GrantFiled: August 7, 1985Date of Patent: September 23, 1986Assignee: Ashland Oil, Inc.Inventor: Anil B. Goel
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Patent number: 4607094Abstract: The thermosetting resin composition of the present invention is prepared by mixing an aromatic cyanamide compound with a cyclic ester compound and/or a cyclic amide compound. Although a solventless type composition is preferable, the present invention is not limited thereto. The cured product of the present invention can be prepared by heating and curing said thermosetting resin composition. The obtained cured product of the present invention usually contains melamine rings, isomelamine rings and linear polyester and/or a linear polyamide units.Type: GrantFiled: February 1, 1985Date of Patent: August 19, 1986Assignee: Hitachi, Ltd.Inventors: Katuo Sugawara, Akio Takahashi, Masahiro Ono, Ritsuro Tada, Motoyo Wajima, Toshikazu Narahara, Akira Nagai
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Patent number: 4587325Abstract: A diether-linked bisorthodinitrile monomer having the formula: ##STR1## is mixed with an amine curing agent and heated to a temperature sufficient o induce polymerization. The resulting polymer has a range of conductivity which is a function of the cure time and temperature.Type: GrantFiled: January 9, 1985Date of Patent: May 6, 1986Assignee: The United States of America as represented by the Secretary of the NavyInventor: Teddy M. Keller
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Patent number: 4585855Abstract: A process for producing a curable resin liquid comprising: (a) at least one cyanate ester compound and (b) at least one polyfunctional maleimide compound, characterized in that the process comprises:(A) reacting at least one said maleimide compound with said diamine in the presence of a diluent at a temperature of 60.degree.-200.degree. C., the ratio of the maleimide group to the amine group being in the range of from 1:0.0015 to 1:0.3 to form a preliminary reaction product substantially free from amine group; and(B) mixing said preliminary reaction product with at least one cyanate ester compound ratio by weight of said preliminary reaction product to said cyanate ester compound is disclosed.Type: GrantFiled: February 28, 1985Date of Patent: April 29, 1986Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Morio Gaku, Hidenori Kimbara, Mitsuo Ejiri
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Patent number: 4567248Abstract: Branched, high molecular weight, thermoplastic polyarylene ethers which contain nitrile groups and are composed of repeating units of the formula I--E.sub.1 --O--E.sub.2 --O--where E.sub.1 is a radical derived from a dihalobenzene compound and E.sub.2 is a radical derived from a bisphenol, and contain from 0.01 to 5 mol %, based on the radical E.sub.1, of one or more radicals derived from polyhalo compounds of the formulae ##STR1## where X is fluorine or chlorine, and their preparation.Type: GrantFiled: December 13, 1984Date of Patent: January 28, 1986Assignee: BASF AktiengesellschaftInventors: Gerd Blinne, Herbert Bender, Peter Neumann
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Patent number: 4555554Abstract: Oligomeric vinyl esters are prepared by reacting (A) an epoxy resin prepared by co-oligomerizing (1) a mixed cyanate of a polyphenol and (2) an aromatic polyamine with (B) a monounsaturated monocarboxylic acid.These vinyl ester resins are (oligomeric vinyl ester and copolymerizable monomer blend) useful in the preparation of laminates, composites, castings, coatings and the like.Type: GrantFiled: February 15, 1985Date of Patent: November 26, 1985Assignee: The Dow Chemical CompanyInventor: Robert E. Hefner, Jr.
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Patent number: 4555553Abstract: Novel hydroxyaromatic oligomers are prepared by the co-oligomerization reaction of a mixed cyanate of a polyphenol with an aromatic polyamine. These oligomers are useful in preparing epoxy resins therefrom.Type: GrantFiled: February 15, 1985Date of Patent: November 26, 1985Assignee: The Dow Chemical CompanyInventor: Robert E. Hefner, Jr.
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Patent number: 4529793Abstract: A selective permeable membrane comprising a polyquinazolone-based polymer including a repeating unit represented by the formula ##STR1## wherein R.sup.1 is a tetravalent aromatic group, R.sup.2a and R.sup.2b are each independently, an alkyl group or aromatic group, and R.sup.3 is a divalent organic group.Type: GrantFiled: June 20, 1983Date of Patent: July 16, 1985Assignee: Nitto Electric Industrial Co., Ltd.Inventors: Masao Abe, Akio Iwama, Yuzuru Noda, Hisashi Ichinose
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Patent number: 4507428Abstract: An aqueous dispersion comprising a poly(3,4-dihydro-3-substituted-1,3 benzoxazine) and a protonated reactive polyamine, wherein the polyamine is at least difunctional, its reactive groups being primary or secondary amine and is protonated with an inorganic or organic acid and wherein the poly(dihydrobenzoxazine) is the reaction product of about 1 equivalent of a primary amine, about 1 equivalent of a phenol and about two equivalents of formaldehyde. The dispersions can be dried and cured to provide useful surface coatings and primers. The curing step occurs without evolution of volatile matter.Type: GrantFiled: February 17, 1984Date of Patent: March 26, 1985Assignee: Monsanto CompanyInventors: Harold P. Higginbottom, Manuel F. Drumm
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Patent number: 4501864Abstract: A polymerizable composition comprising a poly(3,4-dihydro-3-substituted-1,3 benzoxazine) and a reactive polyamine, wherein the polyamine is at least difunctional and its reactive groups are primary or secondary amine and wherein the poly(dihydrobenzoxazine) is the reaction product of about 1 equivalent of a primary amine, about 1 equivalent of a phenol and about two equivalents of formaldehyde. The compositions are useful as potting, encapsulating and laminating resins and as surface coatings.Type: GrantFiled: December 22, 1983Date of Patent: February 26, 1985Assignee: Monsanto CompanyInventor: Harold P. Higginbottom
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Patent number: 4486576Abstract: High-temperature coating materials are prepared by cross-linking copolymers of oligomers produced by nickel catalyzed coupling of unsubstituted aryl polyhalides with substituted organic halides.Type: GrantFiled: April 22, 1982Date of Patent: December 4, 1984Assignee: Union Carbide CorporationInventors: Ismael Colon, Charles N. Merriam
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Patent number: 4481332Abstract: A heat resistant polymer composition having improved processability and oxidative deterioration resistance which comprises a blend of a polyphenylene oxide copolymer and a polymer prepared by radical polymerization of one or more kinds of monomers having at least one vinyl group in the molecule, the polyphenylene oxide copolymer having a polyphenylene ether structure derived from a phenol compound and containing nitrogen-containing monomer units derived from at least one of the compounds of the general formulas: ##STR1## wherein R.sup.5 to R.sup.11 are hydrogen, a hydrocarbon group or a substituted hydrocarbon group, provided that R.sup.5 and R.sup.6, R.sup.8 and R.sup.9, and R.sup.10 and R.sup.11 can be joined to form a substituted or nonsubstituted aromatic ring.Type: GrantFiled: December 8, 1983Date of Patent: November 6, 1984Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Akiyoshi Somemiya, Shunichu Miyashita, Junichi Ishizu
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Patent number: 4469859Abstract: A curable resin composition comprising a mixture and/or a preliminary reaction product of (a) polyfunctional cyanate ester, prepolymer of the cyanate ester, or coprepolymer of the cyanate ester and an amine, and (b) cyclopentadiene or polycyclopentadiene and a curable resin composition comprising a mixture or a preliminary reaction product of above component (a), above component (b) and (c), a polyfunctional maleimide, prepolymer of the maleimide or coprepolymer of the maleimide and an amine are disclosed. Cured resin having excellent impact-resistance, adhesive power, heat-resistance and chemical-resistance can be prepared from the compositions.Type: GrantFiled: July 10, 1980Date of Patent: September 4, 1984Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Morio Gaku, Nobuyuki Ikeguchi
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Patent number: 4443593Abstract: Waste or surplus polycarbonates are salvaged by reacting them with a hydroxy amine in an amount sufficient to cleave about 85% or more of the carbonate groups, thereby converting the polymer to a mixture of dihydroxy monomers--including novel dihydroxy carbamates--which may be converted to useful polymers by reaction with other difunctional monomers having at least one hydroxy-reactive functional group per molecule.Type: GrantFiled: June 25, 1982Date of Patent: April 17, 1984Assignee: The Dow Chemical CompanyInventor: Guy R. Collins
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Patent number: 4436853Abstract: A metal to rubber adhesion promoter comprising the reaction product of a phenol and a substituted melamine, said phenol being ##STR1## wherein R.sub.1 through R.sub.4 are selected from the group consisting of hydrogen, cyclic and acyclic alkyl groups having from 1 to 10 carbon atoms, and a substituted melamine having the formula ##STR2## where R.sub.5 through R.sub.10 may be the same or different and are selected from the group consisting of alkyl groups having from 1 to 5 carbon atoms. The reaction product is a resin and is added to the rubber compound prior to cure. The adhesion promoter is useful in the making of tires having steel belts and in other reinforced rubber articles.Type: GrantFiled: August 20, 1982Date of Patent: March 13, 1984Assignee: The Goodyear Tire & Rubber CompanyInventor: William W. Schloman, Jr.
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Patent number: 4414383Abstract: This invention provides a single stage melt polymerization process for the production of an improved type of high molecular weight polybenzimidazole, which involves the use of a phosphorus-containing polymerization catalyst.The process provides poly-2,2'-(m-phenylene)-5,5'-bibenzimidazole of improved color and plugging value, and is further characterized by an inherent viscosity of at least about 0.7 dl/g, and a weight average molecular weight of at least about 100,000.Type: GrantFiled: May 24, 1982Date of Patent: November 8, 1983Assignee: Celanese CorporationInventors: Anthony B. Conciatori, Eui W. Choe, Henry K. Hall, Jr.
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Patent number: 4408035Abstract: Phthalonitrile resins useful as high-temperature coatings and plastics and n high-temperature composites are obtained by heating a diphthalonitrile monomer with a primary amine from a temperature from about the melting point of the monomer to about the decomposition temperature of the resin. The resins can also be prepared by dissolving a diphthalonitrile monomer in a solvent, e.g. acetonitrile, adding a primary amine to form a suspension, heating the suspension to the B-stage, quenching the suspension, removing the solvent, and heating the residue at a temperature from about its melting point to about the decomposition temperature of the resin.Type: GrantFiled: August 24, 1981Date of Patent: October 4, 1983Assignee: The United States of America as represented by the Secretary of the NavyInventor: Teddy M. Keller
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Patent number: 4400500Abstract: This invention relates to polyaminoester thermosetting resins prepared by reacting polyalkylene maleate oligomers with polyfunctional amines via a Michael type addition reaction. The reaction is preferably conducted by a RIM process. Alpha, beta ethylenically unsaturated monomers, which are slow to react with amines, may be added to the reaction to copolymerize with the maleate functionality in a post cure step. The polyaminoester thermosetting resins are useful as plastics, coatings, resin modifiers, and elastomers.Type: GrantFiled: April 30, 1982Date of Patent: August 23, 1983Assignee: Rohm and Haas CompanyInventors: Everett J. Kelley, Casmir S. Ilenda
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Patent number: 4400499Abstract: Described herein is an integrated process for the preparation of substantially linear high molecular weight thermoplastic polymers derived from aryl polyhalide monomers. Aryl polyhalide monomers are first prepared by the reaction of an alkali metal salt of a phenol compound, e.g., dipotassium salt of bisphenol A, with a dihalobenzenoid compound, e.g., 4,4'-dichlorophenylsulfone, in a liquid phase of an aprotic solvent and an azeotrope former, e.g., toluene. Water is removed from the reaction mass as an azeotrope until substantially anhydrous conditions are attained. The aryl polyhalide monomers are then coupled by contacting the monomers with a catalyst mixture of a nickel compound and a ligand in the presence of a reducing metal, e.g., zinc, and an aprotic solvent under substantially anhydrous conditions to form substantially linear high molecular weight thermoplastic polymers.Type: GrantFiled: December 29, 1981Date of Patent: August 23, 1983Assignee: Union Carbide CorporationInventor: Ismael Colon