With Heterocyclic Reactant Which Is Not An Aldehyde Or Derivative Patents (Class 528/248)
Nonaldehyde or nonaldehyde derivative heterocyclic compound contains an oxygen atom as a ring member of the heterocyclic compound (Class 528/249)
Nonaldehyde or nonaldehyde derivative heterocyclic compound contains a sulfur atom as a ring member of the heterocyclic compound (Class 528/251)
Nonaldehyde or nonaldehyde derivative heterocyclic compound contains only two nitrogen atoms as ring members of the heterocyclic compound (Class 528/252)
Nonaldehyde or nonaldehyde derivative heterocyclic compound contains two or more heterocyclic rings and includes shared hetero atoms in a fused or bridged ring system (Class 528/253)
Nonaldehyde or nonaldehyde derivative heterocyclic reactant contains a six membered ring having three nitrogen and three carbon atoms as ring members (Class 528/254)
  • Self-curing thermosetting powder paints
    Patent number: 4255558
    Abstract: The invention pertains to thermosetting powder paint compositions adapted to fuse and thermoset upon exposure to heat. The powder paint is based upon a one-component, self-curing polymeric binder comprising a thermosetting glycoluril copolymer containing methylol or alkoxy methyl glycoluril groups adapted to cross-link with reactive hydroxyl, carboxyl, or amide groups on the copolymer. The copolymer is produced by partial condensation of tetramethylol or tetra-alkoxy methyl glycoluril with units containing reactive hydroxyls, carboxyls, or amide groups.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: March 10, 1981
    Assignee: SCM Corporation
    Inventor: Edward T. Turpin
  • Polyalkylpiperidine derivatives of s-triazine
    Patent number: 4234728
    Abstract: s-Triazine derivatives which contain, as substituents in the 2-, 4- and 6-position, at least one polyalkylpiperidine radical and at least one N-methylolamino group or an ether thereof, are effective stabilisers for plastics, in particular against light degradation. By virtue of their N-methylol group, they are able to enter into a chemical bond with many plastics and this renders them stable to migration and elution.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: November 18, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Jean Rody, Godwin Berner
  • Process for preparing polyimines
    Patent number: 4172937
    Abstract: A process for preparing a polyimine comprising reacting at least one dialdehyde with at least one diamine in a reaction medium of 100 to about 40 percent by volume of a phenolic compound of the formula, ##STR1## wherein X represents a hydrogen atom or a methyl group, and 0 to about 60 percent by volume of a liquid which is miscible with the phenolic compound.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: October 30, 1979
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Kazumi Suematu, Noboru Tanimura, Tadaaki Ohoka
  • Process for the preparation of polystyrylpyridine
    Patent number: 4163740
    Abstract: Solutions of polystyrylpyridine are prepared by a novel process which consists of carrying out the polycondensation of at least one aromatic dialdehyde, preferably terephthalic dialdehyde, and at least one pyridinic derivative substituted by at least two reactive methyl groups at a temperature between 150.degree. C. and 200.degree. C. The polycondensation reaction is stopped after the extent of condensation is equal to at least 40%, the polycondensate is then dissolved in a solvent which is methylethylketone, ethyl acetate, methylene chloride, trichloroethylene, chlorobenzene, n-propanol and preferably a mixture of methylethylketone and n-propanol.The polystyrylpyridine solutions obtained according to the process of this invention are useful for the preparation of composite materials which exhibit very good mechanical properties, excellent behavior under conditions of high temperature, flame and chemical and atmospheric agents.
    Type: Grant
    Filed: January 19, 1978
    Date of Patent: August 7, 1979
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Bernard P. Malassine, Jean-Claude C. Gautier, Sammy H. Chevalier, Gerard R. Berteleau
  • Curable resin compositions of cyanate esters
    Patent number: 4110364
    Abstract: A curable resin composition comprising(a) a cyanate ester component selected from the group consisting of polyfunctional aromatic cyanate ester monomers having at least 2 cyanate groups bonded to their aromatic ring, prepolymers of the cyanate esters and prepolymers of the cyanate ester monomers and amines, and(b) a bismaleimide component selected from the group consisting of bismaleimides, bismaleimide prepolymers and prepolymers of the bismaleimides and amines;The weight ratio of the component (a) to (b) being 1:99 to 99:1.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: August 29, 1978
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Morio Gaku, Kazuhiro Suzuki, Kazuyuki Nakamichi
  • Methylated, methylolated melamine composition
    Patent number: 4101520
    Abstract: A methylated, methylolated melamine composition having a certain combined formaldehyde content, a certain combined methanol content in the form of methoxymethyl groups, a certain -NH content and a certain content of a free methylol groups, the process of preparing the same and the use of such a melamine composition in admixture with other polymeric materials to provide coating compositions.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: July 18, 1978
    Assignee: American Cyanamid Company
    Inventor: Leslie Boldizar