FLAME RESISTANT LIQUID CRYSTAL RESIN COMPOSITION

    公开(公告)号:JP2000239503A

    公开(公告)日:2000-09-05

    申请号:JP31172899

    申请日:1999-11-01

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition having high flame resistance even in thin molded articles, excellent thermostability and the like and excellent in whiteness of flame resistant resin composition by including a specified liquid crystal resin and silicone rubber or the like. SOLUTION: This composition is obtained by including (A) 100 pts.wt. liquid crystal resin including ethylenedioxy units and (B) 0.1-20 pts.wt. silicone rubber and/or silicone resin. The ingredient A is e.g. a liquid crystal polyester resin consisting of structural units of formula I to formula IV (R1 is formula V; R2 is formula VI or the like) or a liquid crystal polyester resin consisting of structural units of formula I, formula II and formula VI. The structural unit of formula I is formed from p-hydroxybenzoic acid, the structural unit of formula II is formed from aromatic dihydroxy compound, the structural unit of formula III is formed from ethylene glycol and the structural unit of formula IV is formed from an aromatic dicarboxylic acid such as terephthalic acid.

    FLAME-RETARDANT RESIN COMPOSITION AND MOLDING MADE THEREFROM

    公开(公告)号:JP2000234040A

    公开(公告)日:2000-08-29

    申请号:JP30104999

    申请日:1999-10-22

    Abstract: PROBLEM TO BE SOLVED: To obtain a resin composition which can give a product excellent in mechanical properties, flame retardancy, bleed out resistance upon treatment with dry and wet heat, point contamination resistance, etc., by compounding a PS resin with a plurality of aromatic phosphates having specified melting points and a silicone compound in a specified ratio. SOLUTION: This composition comprises 100 pts.wt. PS resin, 5-12 pts.wt. aromatic phosphate mixture comprising (x) pts.wt. aromatic phosphate having a melting point of 90 deg.C and represented by formula I (e.g. a compound of formula V) and (y) pts.wt. aromatic phosphate having a melting point of below 90 deg.C or having no melting point (e.g. a compound of formula VI) in a y/x ratio of 0.25-0.5 and 0.2-4 pts.wt. silicone compound. In the formulae, R1 to R8 are each H or a 1-5C alkyl; Ar1 to Ar4 are each phenyl or a phenyl substituted with a halogen-free organic residue; X is a group of any one of formulae II to IV; Y is a direct bond, O, S, SO2, C(CH3)2, CH2, CHPh; Ph is phenyl; (n) is 0 or greater; (k) and (m) are each 0-2; and k+m=0-2.

    FLAME RETARDANT RESIN COMPOSITION AND MOLDED ARTICLE

    公开(公告)号:JP2000198912A

    公开(公告)日:2000-07-18

    申请号:JP29246899

    申请日:1999-10-14

    Abstract: PROBLEM TO BE SOLVED: To produce a flame retardant resin composition that has high flame retardance, high mechanical properties, high heat resistance, high fluidity and high moist heat resistance. SOLUTION: A flame retardant resin composition comprises (A) 100 pts.wt. polybutylene terephthalate resin, (B) 0.1-100 pts.wt. (B-1) polyethylene terephthalate resin and/or (B-2) polycarbonate resin, (C) 0.01-30 pts.wt. red phosphorus having an electrical conductivity of 0.1-1,000 μS/cm ('electrical conductivity' used herein means that the electrical conductivity of an extracted water obtained by adding a 100 mL pure water to 5 g red phosphorus, carrying out an extraction treatment at 121 deg.C for 100 hours, removing the red phosphorus by filtration, and thereafter diluting the filtered water to 250 mL thereof), and (D) 0.1-15 pts.wt. phenol resin.

    FLAME-RETARDED RESIN COMPOSITION AND MOLDED PRODUCT

    公开(公告)号:JP2000136297A

    公开(公告)日:2000-05-16

    申请号:JP22757499

    申请日:1999-08-11

    Abstract: PROBLEM TO BE SOLVED: To obtain a flame-retarded resin composition having excellent flame retardancy, tracking resistance, heat resistance, mechanical characteristics, etc., further having excellent recyclability, and useful for connectors, coil bobbins, etc., by adding a polycarbonate resin, etc., to polybutylene terephthalate resin. SOLUTION: This flame-retarded resin composition comprises (A) 100 pts.wt. of polybutylene terephthalate resin, (B) 0.1-100 pts.wt. of a polycarbonate resin, (C) 0.01-30 pts.wt. of red phosphorus having an electric conductivity of 0.1-1,000 μS/cm (the electric conductivity of extracted water obtained by adding 100 mL of pure water to 5 g of red phosphorus, subjecting the mixture to an extraction treatment at 121 deg.C for 100 hr, filtering off the red phosphorus, and then diluting the filtrate into 250 mL of the diluted water), and (D) 0.1-30 pts.wt. of a phosphoric ester of formula I [X is a group of formula II to IV; R1 to R8 are each H or a 1-5C alkyl; Ar1 to Ar4 are each an aromatic group or the like; Y is a direct bond or the like; (n) is >=0; (k), (m) are each 0-2, provided that (k)+(m)=0 to 2] (for example, a compound of formula V).

    FLAME RESISTANT RESIN COMPOSITION
    57.
    发明专利

    公开(公告)号:JPH11209556A

    公开(公告)日:1999-08-03

    申请号:JP1039498

    申请日:1998-01-22

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition having differential flame resistance imparted to a thermoplastic resin, and also capable of manifesting excellent mechanical characteristics and thermal resistance by compounding a phosphorus- based flame retardant and a small amount of a liquid crystal resin to the thermoplastic resin. SOLUTION: This composition comprises (A) 100 pts.wt. rubber-reinforced styrenic resin, (B) 1-50 pts.wt. phosphorus-based flame retardant (preferably an ammonium polyphosphate, a phosphate or the like), and (C) 0.01-10 pt.wt. liquid crystal resin comprising a structural unit of formula I, a structural unit of formula II (R1 is 4,4'-diphenyl or the like), a structural unit of formula III and a structural unit of formula IV (R2 is 1,4-phenyl or the like), and regulated so that the molar ratio of the units of formulas I/II may be (70/30)-(95/5), the molar ratio of the units of formulas II/III may be (5/95)-(30/70), and the amount of the unit of formula IV may be substantially the same mol as that of the total of the units of formulas II and III. As the result, the problem of imparting flame resistance is solved, and the composition is expected to be used for the usage such as electric or electronic parts, automotive parts and office automation apparatuses.

    FLAME-RETARDANT RESIN COMPOSITION AND MOLDED ARTICLE

    公开(公告)号:JPH11199784A

    公开(公告)日:1999-07-27

    申请号:JP29160798

    申请日:1998-10-14

    Abstract: PROBLEM TO BE SOLVED: To obtain a flame-retardant resin compsn. which has a high flame retardance and excellent mechanical properties by compounding a thermoplastic resin with specified amts. of a bromine flame retardant and a free radical generator and thereby promoting the dripping during burning. SOLUTION: This compsn. is prepd. by compounding 100 pts.wt. thermoplastic resin (pref. a polyester resin, a polyamide resin, or a styrenic resin) with 0.1-30 pts.wt. bromine flame retardant pref. comprising at least one compd. selected from among a brominated PS, a brominated polyphenylene ether, and a brominated polycarbonate and 0.01-10 pts.wt. free radical generator pref. having at least either an -O-O- bond or a -C-C- bond and/or having a 1-min half-life temp. of 200 deg.C or higher. Pref., the free radical generator is a compd. of formula I, pref. formula II, still pref. formula III, or a compd. of formula IV. In the formulas, R to R are each H or a 1-10C monovalent org. residue provided R to R may be substd. by at least one -OOH group.

    THERMOPLASTIC RESIN COMPOSITION
    59.
    发明专利

    公开(公告)号:JPH1171514A

    公开(公告)日:1999-03-16

    申请号:JP17759298

    申请日:1998-06-24

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition keeping characteristic properties of thermoplastic resin, exhibiting excellent impact resistance and water- absorption resistance and useful for mechanism element of machines, etc., by compounding a thermoplastic resin with a specific polyketone copolymer at a specific ratio. SOLUTION: The objective composition is produced by compounding (A) 100 pts.wt. of a thermoplastic resin such as polyamide resin, polyester resin and styrene resin with (B) 0.1-300 pts.wt. of a polyketone copolymer containing (B1 ) the recurring unit of formula I and (B2 ) the recurring unit of formula II at a B2 /B1 molar ratio of 0.01-0.10. The composition is preferably further compounded with (C) 5-140 pts.wt. of a filler based on 100 pts.wt. of the component A. The composition can be produced e.g. by using respectively specific amounts of the components A and B and melting and kneading the mixture with a twin-screw extruder at 150-350 deg.C.

    FLAME-RETARDANT RESIN COMPOSITION AND MOLDED ARTICLE

    公开(公告)号:JPH115914A

    公开(公告)日:1999-01-12

    申请号:JP10507598

    申请日:1998-04-15

    Abstract: PROBLEM TO BE SOLVED: To improve the flame retardancy and mechanical characteristics by using a thermosetting resin or a specified thermoplastic resin, a polyethylene terephthalate resin and red phosphorus as the constituents. SOLUTION: At least one resin selected from among thermosetting resins comprising, e.g. a phenolic resin, an epoxy resin, an unsaturated polyester, a melamine resin, a urethane resin, an aniline resin, a furan resin, an alkyd resin and a xylene resin, or thermoplastic resins other than a polybutylene terephthalate resin, a polyethylene terephthalate resin, a nylon resin and an ABS resin, in an amount of 100 pts.wt. is blended with at least one polyethylene terephthalate resin selected from polyethylene terephthalates and copolymers thereof, having an intrinsic viscosity (in a 1-1 phenol/tetrachloroethane mixture at 25 deg.C) of 0.10 to 3.00, preferably 0.25 to 2.50, in an amount of 0.1-50 pts.wt. and red phosphorus having a mean particle diameter of 50-0.01 μm and a conductivity of 0.1-100 μs/cm, in an amount of 0.1-50 pts.wt..

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