POLYAMIDE MOLDED PRODUCT
    22.
    发明专利

    公开(公告)号:JPH1142666A

    公开(公告)日:1999-02-16

    申请号:JP14181198

    申请日:1998-05-22

    Abstract: PROBLEM TO BE SOLVED: To provide a polyamide molded product having excellent roundness in its circular structure part, especially good in adhesion and fitting properties when the circular structure part is used in adhesion and fitting and generating no creaking sound. SOLUTION: In a molded product composed of a polyamide resin compsn. and having at least one circular structure part, the polyamide resin compsn. contains 0.01-5.0 pts.wt. of at least one moldability modifier (b) selected from an aliphatic amide, a fatty acid and derivatives of them and 0.01-0.5 pts.wt. of a metal salt of a higher fatty acid with respect to 100 pts.wt. of a polyamide resin (a).

    METHOD FOR STOPPING POLYMERIZATION REACTION

    公开(公告)号:JPH08208784A

    公开(公告)日:1996-08-13

    申请号:JP30705095

    申请日:1995-11-27

    Abstract: PURPOSE: To stop the polymerization reaction while dispensing with the removal of a catalyst by adding a specified hindered amine compound to a polymer obtained through bulk polymerization of trioxane, etc., in the presence of a boron trifluoride base catalyst. CONSTITUTION: A polymerization reaction is stopped by adding a hindered amine compound of the formula (wherein R to R are each 1-5C alkyl; n is an integer of 1 or greater; and R is an n-valent organic residue) to a polymer obtained through bulk polymerization of trioxane or a mixture of trioxane with a cyclic ether and/or a cyclic acetal in the presence of at least one polymerization catalyst selected from the group consisting of BF3 , BF3 hydrates and coordination compounds of BF3 with O- or S-containing organic compounds. The polymer obtained by adding the hindered amine compound to stop the polymerization reaction dispenses with the removal of the catalyst. Accordingly, the production process can be greatly shortened, while a polymer with very high thermal stability can be obtained.

    FLAME RETARDANT RESIN COMPOSITION
    25.
    发明专利

    公开(公告)号:JPH08120180A

    公开(公告)日:1996-05-14

    申请号:JP4458195

    申请日:1995-03-03

    Abstract: PURPOSE: To obtain the subject composition excellent in flame retardancy, moldability, hydrolytic resistance and mechanical properties and free from bleeding by compounding a thermoplastic resin with a polyphosphate polymer having a specific structure. CONSTITUTION: This composition is composed of (A) 100 pts.wt. of a thermoplastic resin (preferably, a thermoplastic polyester resin such as polybutylene terephthalate or a mixture of the resin with a phenoxy resin) and (B) 1-100 pts.wt. of a polyphosphate consisting of constructing units of formula I (Ar is a divalent aromatic residual group; R1 is a 1-12C alkyl, an aryl, etc.; n expresses a number-average molecular weight and is >=40) (preferably, a hydroquinone-type polyphosphate of formula II). The component B is generally obtained by polycondensing phosphoric acid dichloride with a bisphenol. Preferably, the composition is further compounded with a salt of (iso)cyanuric acid with melamine, benzoguanamine or acetoguanamine.

    FLAME RETARDANT FOR SYNTHETIC RESIN AND FLAME-RETARDANT RESIN COMPOSITION CONTAINING THE SAME

    公开(公告)号:JPH0853569A

    公开(公告)日:1996-02-27

    申请号:JP18866594

    申请日:1994-08-10

    Abstract: PURPOSE:To obtain a flame retardant for synthetic resins which is prepared by coating specific flame retardants with a specific not-triazine oligomers or polymer, thus is excellent in resistance to hydrolysis and to humid heat without liberation of hazardous gases. CONSTITUTION:(A) A flame retardant of more than 1g/100g solubility in water at 20 deg.C (preferably a phosphorus-containing compound of ammonium polyphosphate and/or polyphosphoramide) is coated with (B) non-triazine oligomers or polymer of 15-60dyne/cm critical surface tension at 20 deg.C, preferably a fluorine oligomer or polymer such as polytetrafluoroethylene to give this flame retardant. Further, said flame retardant, preferably in less than 100mum particle sizes is dispersed in a synthetic resin such as polyolefin to give this flame retardant composition. Additionally, it is preferred that this composition be further combined with a salt from a compound of the formula (R -R are each H, an aryl; R is H, an aryl) and (iso)cyanuric acid.

    LUMINESCENT ELEMENT
    27.
    发明专利

    公开(公告)号:JPH07286170A

    公开(公告)日:1995-10-31

    申请号:JP7857694

    申请日:1994-04-18

    Abstract: PURPOSE:To provide a luminescent element containing a specific carbazole compound, etc., dispersed in a polymeric compound, having high luminance and low power consumption and useful for display element, flat-panel display, etc. CONSTITUTION:This luminescent element contains (A) a carbazole compound expressed by formula I (R to R each is Hor a 1-18C alkyl; X is a xylylene or an alkylene) (e.g. the compound of formula II) and/or its oxidative polymerization product dispersed in (B) a polymeric compound such as polyvinylcarbazole, polysilane or polymethyl methacrylate. The weight ratio of the component A to the component B is preferably 5/95 to 30/70 and the component A is preferably used as a hole-transporting layer.

    INJECTION MOLDED ARTICLE OF FLAME-RETARDANT POLYESTER RESIN

    公开(公告)号:JPH06145489A

    公开(公告)日:1994-05-24

    申请号:JP613493

    申请日:1993-01-18

    Abstract: PURPOSE:To provide an injection-molded article of a flame-retardant polyester resin having excellent moldability and mechanical properties, free from the emission of noxious gas and corrosive gas and the lowering of hydrolysis resistance and suitable for parts for electric and electronic equipment, automobile parts and machinery parts. CONSTITUTION:The objective article is produced by injection-molding a composition produced by compounding (A) 100 pts.wt. of a thermoplastic polyester produced by using a 8-20C aromatic dicarboxylic acid or its lower alkyl ester and a 2-20C aliphatic or alicyclic diol as starting raw materials with (B) 0.5-100 pts.wt. (especially 5-50 pts.wt.) of a polyphosphonamide having a recurring unit of formula (R is aryl, alkyl, aralkyl or cycloalkyl; R and R are H, aryl or alkyl; R is arylene, aralkylene or alkylene; the diamine group may have a cyclic structure containing directly bonded R and R ). The component B is especially preferably a compound having a weight reduction of

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