TH5684B - A mixture of polystyrene resin with improved hardness. - Google Patents

Abstract

Polystyrene resin mixtures containing rubber reinforced polystyrene. fiber potassium nitrate and high molecular weight fatty acids and/or metal salts. this substance in a specific ratio This mixture has better hardness. much without sacrificing the excellent properties of the admixture. impact resistance flow in the molten state and the presence of good appearance This mixture is useful as a material. For the manufacture of large items made from molds such as parts or bodies of large television sets or air conditioner frames. This mixture may contain additional components that It is an anti-fire agent and charcoal fiber in a specific ratio. The resulting flame retardant mixture not only possesses such mechanical strength above not only excellent but also showing It also has excellent fire resistance properties, so this mixture can be used as a material for the manufacture of such items. above with the best results. especially in the case of things They must have good fire resistance properties.

Claims (17)

1. A mixture of polystyrene resins with improved hardness, consisting of (a) 100 parts by weight of a polystyrene resin mixture containing 2 to 30% by weight of a rubber-based material dispersed in it, (b) 2 to 50 parts by weight of filamentous potassium titanate, and (c) 0.1 to 5 parts by weight of high molecular weight fatty acids and/or their metal salts. 2. A mixture of polystyrene resins as defined in claim 1, in which the potassium titanate fibers have an average fiber length of 10 to 60 micrometers. 3. A mixture of polystyrene resins as defined in claim 2, in which the potassium titanate fibers have an average fiber length of 10 to 30 micrometers and an average fiber diameter of 0.1 to 0.8 micrometers. 4. A mixture of polystyrene resins as defined in Claim 1, containing 10 to 50 parts by weight of potassium titanate fibers. 5. A mixture of polystyrene resins as defined in claim 4, containing 15 to 50 parts by weight of potassium titanate fibers. 6. A mixture of polystyrene resin as defined in claim 5, which includes additional components including (d) 4 to 35 parts by weight of fire retardant and (e) 1 to 5 parts by weight of carbon fiber. 7. A mixture of polystyrene resins as defined in claim 5, in which the potassium titanate fibers have an average fiber length of 20 to 60 micrometers and an average fiber diameter of 0.5 to 1.5 micrometers. 8. A mixture of polystyrene resins as defined in any one of Reputations 1, 2, 3, 4, 5, 6 or 7, in which such high molecular weight fatty acids are saturated fatty acids with 12 to 22 carbon atoms and such metals are selected from the metal groups in Group II and III of the periodic table. 9. A mixture of polystyrene resin with improved hardness, consisting of (a) 100 parts by weight of a mixture of polystyrene resin containing 2 to 30% by weight of a rubber material dispersed in it. This rubber material is dispersed in the polystyrene resin in the form of particles with an average particle diameter of 0.5 to 5 micrometers; (b) 2 to 50 parts by weight of fibrous potassium titanate; (c) at least one of the high molecular weight fatty acids and their metal salts 0.1 to 5 parts by weight; (d) 0 to 35 parts by weight of flame retardant; and (e) 0 to 5 parts by weight of carbon fiber. 10. A mixture of polystyrene resins as specified in claim 9, containing 4 to 35 parts by weight of such flame retardant and 1 to 5 parts by weight of such carbon fiber. 11. A mixture of polystyrene resins as defined in claim 9, in which the potassium titanate fibers have an average fiber length of 10 to 60 micrometers and an average fiber diameter of 0.1 to 1.5 micrometers. 12. A mixture of polystyrene resins as defined in claim 11, in which the potassium titanate fibers have an average fiber length of 10 to 30 micrometers and an average fiber diameter of 0.1 to 0.8 microns. 13. A mixture of polystyrene resins as defined in claim 9, in which the amount of potassium titanate fibers shall be between 10 and 50 parts by weight. 14. A mixture of polystyrene resins as defined in claim 13, in which the amount of potassium titanate fibers shall be between 15 and 50 parts by weight. 15. A mixture of polystyrene resins as defined in claim 13, in which the potassium titanate fibers have an average fiber length of 20 to 60 micrometers and an average fiber diameter of 0.5 to 1.5 micrometers. 16. A mixture of polystyrene resins as defined in claim 9, in which such high molecular weight fatty acids are saturated fatty acids with 12 to 22 carbon atoms, and such metals are selected from groups II and III of the periodic table. 17. A mixture of polystyrene resin with improved hardness, consisting of (a) 100 parts by weight of a mixture of polystyrene resin containing 2 to 30% by weight of a rubber-like material dispersed in it. This rubber-like material is dispersed in the polystyrene resin in the form of particles with an average particle diameter of 0.5 to 5 micrometers; (b) 2 to 50 parts by weight of fibrous potassium titanate with an average fiber length of 10 to 60 micrometers and an average fiber diameter of 0.1 to 1.5 micrometers; (c) 0.1 to 5 parts by weight of at least one saturated fatty acid containing 12 to 22 carbon atoms and its metal salt. The metal is chosen from the groups II and III of the periodic table; (d) 4 to 35 parts by weight of a flame retardant; and (e) 1 to 5 parts by weight of carbon fiber.