Compound Contains A Ring Which Is Devoid Of A Metal Atom And Contains At Least One P Atom As Ring Member (9/6564; 9/6564v; 9/6568; 9/6568b; 9/6568c; 9/6568d; 9/6568e; 9/6568f) Patents (Class 987/33)
  • Patent number: 7999014
    Abstract: A flame retardant suitable for manufacturing a polymer composition is provided. The polymer composition is used for forming a cured film in which a balance among flame retardancy, adhesion, chemical resistance, heat resistance, and elasticity, and so on, is provided. A flame-retardant polymer composition with an excellent balance among the above properties is also provided. The flame retardant of the invention has a structure of Formula (1), (2), or (3): (in which, R1 is hydrogen or methyl, R2 is C2-20 alkylene or C2-20 alkylene in which any —CH2— is replaced by —O—, R3 and R4 are C1-20 alkyl, phenyl, and phenyl substituted by C1-5 alkyl or phenyl, R3 and R4 may also be an integrally-formed cyclic group, and p and q are 0 or 1).
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: August 16, 2011
    Assignee: JNC Corporation
    Inventors: Ryota Mineo, Tomohiro Eto, Yosihiro Deyama, Hiroyuki Satou
  • Patent number: 7671225
    Abstract: Compounds of the formula (I) or (I?), where R1 is a hydrogen atom or C1-C4-alkyl and R?1 is C1-C4-alkyl; X1 and X2 are each, independently of one another, a secondary phosphine group; R2 is hydrogen, R01R02R03Si—, C1-C18.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: March 2, 2010
    Assignee: Umicore AG & Co. KG
    Inventors: Matthias Lotz, Felix Spindler