With Nitrogen-containing Reactant Patents (Class 528/211)
  • Patent number: 4771091
    Abstract: 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: Grant
    Filed: November 24, 1986
    Date of Patent: September 13, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Josef Ertl
  • Patent number: 4769437
    Abstract: 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: Grant
    Filed: September 18, 1987
    Date of Patent: September 6, 1988
    Inventor: David H. Blount
  • Patent number: 4764587
    Abstract: 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: Grant
    Filed: October 29, 1985
    Date of Patent: August 16, 1988
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Yasuo Sano, Yasuhiro Morisue, Kiyoshi Komiya, Yoshimasa Nakamura
  • Patent number: 4764578
    Abstract: 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: Grant
    Filed: September 16, 1986
    Date of Patent: August 16, 1988
    Assignee: Centre d'Etude des Materiaux Organiques pour Technologies Avancees
    Inventors: Jean Malinge, Guy Rabilloud, Bernard Sillion
  • Patent number: 4755584
    Abstract: 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: Grant
    Filed: August 27, 1986
    Date of Patent: July 5, 1988
    Assignee: Idemitsu Kosan Company Limited
    Inventors: Tatsuya Tomioka, Shigeru Murakami
  • Patent number: 4751323
    Abstract: 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: Grant
    Filed: November 16, 1983
    Date of Patent: June 14, 1988
    Assignee: The Dow Chemical Company
    Inventors: Edmund P. Woo, Daniel J. Murray
  • Patent number: 4748230
    Abstract: 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: Grant
    Filed: March 27, 1987
    Date of Patent: May 31, 1988
    Assignee: Ashland Oil, Inc.
    Inventors: Omar Tiba, Billy M. Culbertson, Marvin L. Deviney, Anil B. Goel
  • Patent number: 4746719
    Abstract: 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: Grant
    Filed: June 3, 1987
    Date of Patent: May 24, 1988
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Omar Tiba
  • Patent number: 4742150
    Abstract: 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: Grant
    Filed: September 25, 1986
    Date of Patent: May 3, 1988
    Assignee: General Electric Company
    Inventors: John W. Verbicky, Jr., Elbridge A. O'Neil, Mark J. Bausch
  • Patent number: 4740584
    Abstract: 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: Grant
    Filed: September 8, 1986
    Date of Patent: April 26, 1988
    Assignee: Interez, Inc.
    Inventor: David Shimp
  • Patent number: 4738787
    Abstract: 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: Grant
    Filed: May 26, 1987
    Date of Patent: April 19, 1988
    Assignee: Alkaril Chemicals Inc.
    Inventors: Anthony J. O'Lenick, Jr., Joseph J. Fanelli
  • Patent number: 4739029
    Abstract: 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: Grant
    Filed: April 16, 1987
    Date of Patent: April 19, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Mohamed A. Elmasry
  • Patent number: 4739031
    Abstract: 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: Grant
    Filed: May 12, 1987
    Date of Patent: April 19, 1988
    Assignee: Ashland Oil, Inc.
    Inventor: Anil B. Goel
  • Patent number: 4734457
    Abstract: 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: Grant
    Filed: May 7, 1987
    Date of Patent: March 29, 1988
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Lester A. Doe, Jr.
  • Patent number: 4732963
    Abstract: Thermosetting bis(isoimide) resins are prepared by the reaction of an ethylenically unsaturated bis(isoimide) with a dihydric phenol.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: March 22, 1988
    Inventors: Robert L. Wank, John D. Harper
  • Patent number: 4720538
    Abstract: 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: Grant
    Filed: July 24, 1986
    Date of Patent: January 19, 1988
    Assignee: Huls Aktiengesellschaft
    Inventor: Martin Bartmann
  • Patent number: 4711911
    Abstract: 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: Grant
    Filed: December 22, 1986
    Date of Patent: December 8, 1987
    Inventor: David H. Blount
  • Patent number: 4709006
    Abstract: 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: Grant
    Filed: April 16, 1986
    Date of Patent: November 24, 1987
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Tsu-Tzu Tsai, Fred E. Arnold
  • Patent number: 4709008
    Abstract: 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: Grant
    Filed: June 30, 1986
    Date of Patent: November 24, 1987
    Assignee: Interez, Inc.
    Inventor: David A. Shimp
  • Patent number: 4703104
    Abstract: 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: Grant
    Filed: February 10, 1986
    Date of Patent: October 27, 1987
    Assignee: Idemitsu Kosan Company Limited
    Inventors: Shigeru Matsuo, Tomoyoshi Murakami, Ryuichi Takasawa
  • Patent number: 4699970
    Abstract: 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: Grant
    Filed: June 30, 1986
    Date of Patent: October 13, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Omar Tiba, Billy M. Culbertson
  • Patent number: 4699933
    Abstract: 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: Grant
    Filed: October 14, 1986
    Date of Patent: October 13, 1987
    Assignee: The Dow Chemical Company
    Inventors: Robert E. Hefner, Jr., Mary N. White
  • Patent number: 4678839
    Abstract: 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: Grant
    Filed: July 8, 1985
    Date of Patent: July 7, 1987
    Assignee: General Electric Company
    Inventors: John E. Hallgren, Peter P. Policastro, Herbert S. Chao, Bruce C. Johnson
  • Patent number: 4677182
    Abstract: 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: Grant
    Filed: November 25, 1985
    Date of Patent: June 30, 1987
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Charles M. Leir, John E. Stark
  • Patent number: 4675371
    Abstract: A process for the preparation of a thermoset polymer having good adhesive properties comprising reacting a compound containing a plurality of oxazoline groups with an alkenyl phosphonic acid at a temperature of from about room temperature to about 300.degree. C. is described.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: June 23, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: Anil B. Goel
  • Patent number: 4665154
    Abstract: 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: Grant
    Filed: June 6, 1986
    Date of Patent: May 12, 1987
    Assignee: Allied Corporation
    Inventors: William D. Varnell, Thomas D. Newton
  • Patent number: 4663427
    Abstract: 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: Grant
    Filed: December 19, 1985
    Date of Patent: May 5, 1987
    Assignee: Idemitsu Kosan Company Limited
    Inventors: Shigeru Matsuo, Tomoyoshi Murakami
  • Patent number: 4652620
    Abstract: 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: Grant
    Filed: October 4, 1985
    Date of Patent: March 24, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Timothy A. Tufts, Billy M. Culbertson
  • Patent number: 4640974
    Abstract: 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: Grant
    Filed: February 18, 1986
    Date of Patent: February 3, 1987
    Assignee: Idemitsu Kosan Company Limited
    Inventors: Shigeru Matsuo, Tomoyoshi Murakami
  • Patent number: 4640975
    Abstract: 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: Grant
    Filed: December 26, 1985
    Date of Patent: February 3, 1987
    Assignee: Idemitsu Kosan Company Limited
    Inventors: Shigeru Matsuo, Tomoyoshi Murakami
  • Patent number: 4639505
    Abstract: 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: Grant
    Filed: August 7, 1985
    Date of Patent: January 27, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: Anil B. Goel
  • Patent number: 4613662
    Abstract: 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: Grant
    Filed: August 7, 1985
    Date of Patent: September 23, 1986
    Assignee: Ashland Oil, Inc.
    Inventor: Anil B. Goel
  • Patent number: 4607094
    Abstract: 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: Grant
    Filed: February 1, 1985
    Date of Patent: August 19, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Katuo Sugawara, Akio Takahashi, Masahiro Ono, Ritsuro Tada, Motoyo Wajima, Toshikazu Narahara, Akira Nagai
  • Patent number: 4587325
    Abstract: 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: Grant
    Filed: January 9, 1985
    Date of Patent: May 6, 1986
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Teddy M. Keller
  • Patent number: 4585855
    Abstract: 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: Grant
    Filed: February 28, 1985
    Date of Patent: April 29, 1986
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Morio Gaku, Hidenori Kimbara, Mitsuo Ejiri
  • Patent number: 4567248
    Abstract: 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: Grant
    Filed: December 13, 1984
    Date of Patent: January 28, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Blinne, Herbert Bender, Peter Neumann
  • Patent number: 4555554
    Abstract: 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: Grant
    Filed: February 15, 1985
    Date of Patent: November 26, 1985
    Assignee: The Dow Chemical Company
    Inventor: Robert E. Hefner, Jr.
  • Patent number: 4555553
    Abstract: 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: Grant
    Filed: February 15, 1985
    Date of Patent: November 26, 1985
    Assignee: The Dow Chemical Company
    Inventor: Robert E. Hefner, Jr.
  • Patent number: 4529793
    Abstract: 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: Grant
    Filed: June 20, 1983
    Date of Patent: July 16, 1985
    Assignee: Nitto Electric Industrial Co., Ltd.
    Inventors: Masao Abe, Akio Iwama, Yuzuru Noda, Hisashi Ichinose
  • Patent number: 4507428
    Abstract: 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: Grant
    Filed: February 17, 1984
    Date of Patent: March 26, 1985
    Assignee: Monsanto Company
    Inventors: Harold P. Higginbottom, Manuel F. Drumm
  • Patent number: 4501864
    Abstract: 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: Grant
    Filed: December 22, 1983
    Date of Patent: February 26, 1985
    Assignee: Monsanto Company
    Inventor: Harold P. Higginbottom
  • Patent number: 4486576
    Abstract: 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: Grant
    Filed: April 22, 1982
    Date of Patent: December 4, 1984
    Assignee: Union Carbide Corporation
    Inventors: Ismael Colon, Charles N. Merriam
  • Patent number: 4481332
    Abstract: 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: Grant
    Filed: December 8, 1983
    Date of Patent: November 6, 1984
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Akiyoshi Somemiya, Shunichu Miyashita, Junichi Ishizu
  • Patent number: 4469859
    Abstract: 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: Grant
    Filed: July 10, 1980
    Date of Patent: September 4, 1984
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Morio Gaku, Nobuyuki Ikeguchi
  • Patent number: 4443593
    Abstract: 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: Grant
    Filed: June 25, 1982
    Date of Patent: April 17, 1984
    Assignee: The Dow Chemical Company
    Inventor: Guy R. Collins
  • Patent number: 4436853
    Abstract: 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: Grant
    Filed: August 20, 1982
    Date of Patent: March 13, 1984
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: William W. Schloman, Jr.
  • Patent number: 4414383
    Abstract: 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: Grant
    Filed: May 24, 1982
    Date of Patent: November 8, 1983
    Assignee: Celanese Corporation
    Inventors: Anthony B. Conciatori, Eui W. Choe, Henry K. Hall, Jr.
  • Patent number: 4408035
    Abstract: 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: Grant
    Filed: August 24, 1981
    Date of Patent: October 4, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Teddy M. Keller
  • Patent number: 4400500
    Abstract: 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: Grant
    Filed: April 30, 1982
    Date of Patent: August 23, 1983
    Assignee: Rohm and Haas Company
    Inventors: Everett J. Kelley, Casmir S. Ilenda
  • Patent number: 4400499
    Abstract: 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: Grant
    Filed: December 29, 1981
    Date of Patent: August 23, 1983
    Assignee: Union Carbide Corporation
    Inventor: Ismael Colon