中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.021 seconds)

    Optically brightened and stabilized polyamides
    3.
    发明专利
    Optically brightened and stabilized polyamides 未知

    公开(公告)号：GB916610A

    公开(公告)日：1963-01-23

    申请号：GB2335361

    申请日：1961-06-28

    Applicant: BASF AG

    Inventor： NIESWANDT WERNER ,  POMMER HORST ,  STILTZ WALTER ,  STAHL HELMUT

    IPC: C07C63/66 ,  C08G63/54 ,  C08K3/32 ,  C08K5/00 ,  C08K5/12

    Abstract: An optically brightened and stabilized polyamide contains (A) a derivative of 1:4-bisstyrylbenzene having free carboxy groups, carboxylic acid ester groups, carboxylic acid amide groups and/or nitrile groups combined with both terminal phenyl radicals in the styryl groups as claimed in the parent Specification, and (B) an alkali or alkaline earth metal salt of phosphorous acid. The polyamides may contain additionally Ti(III) and cerium (III) salts, e.g. cerium (III) chloride and acetate and titanium (III) chloride hexahydrate, sulphate hexahydrate and acetate hexahydrate. Many polyamides and 1:4-bis-styryl benzene derivatives are specified. Specified phosphorus acid salts are sodium hydrogen phosphite and barium hydrogen phosphite. Examples (1) and (2) describe the addition to polyhexamethylene adipamide of:-(1) sodium phosphite pentahydrate, 1:4-bis(p-cyanostyryl)-benzene and titanium trichloride and (2) 1:4-bis-(p-carboxymethyl-styryl) benzene, sodium phosphite pentahydrate and titanium trichloride hexahydrate whist Examples (3) and (4) describe the addition to polycaprolactam of:-(3) the morpholide of 1:4-bis(p-carboxystyryl)-benzene, sodium phosphite and titanium trichloride hexahydrate and (4) sodium phosphite, 1:4-bis-(p-cyanostyryl) benzene and cerium trichloride heptahydrate.

    Synthetic polyamides stabilized against the action of light and heat
    4.
    发明专利
    Synthetic polyamides stabilized against the action of light and heat 未知

    公开(公告)号：GB904972A

    公开(公告)日：1962-09-05

    申请号：GB376261

    申请日：1961-02-01

    Applicant: BASF AG

    Inventor： ILLING GERHARD ,  STAHL HELMUT

    IPC: C08K3/00 ,  C08K3/10 ,  C08K3/32 ,  C08L77/00

    Abstract: A stabilized polyamide contains as stabilizers 0,5 to 2% by weight of hypophosphoric acid and/or a hypophosphate and 0,001 to 1% by weight of a water soluble cerium (III) salt and/or a water-soluble titanium (III) salt. Specified hydrophosphates are lithium, sodium, potassium, magnesium, calcium, barium, aluminium, cerium, thorium, copper, zinc, titanium, iron, nickel and cobalt hypophosphates. Specified water-soluble cerium (III) and titanium (III) salts are the chlorides, bromides, halides, sulphonates, formates and acetates. Specified polyamides are those derived from caprolactam, caprylic lactam, o -amino-undecanoic acid, the salts of adipic, suberic, sebacic or decamethylene dicarbonic acid with hexamethylene or decamethylene diamine, of heptane dicarboxylic acid with bis-(4-aminocyclohexyl)-methane, of tetramethylene diisocyanate and adipic acid and of aliphatic w-aminoalcohols and dicarboxylic acids each with 4 to 34 carbon atoms between the functional groups. The stabilizers may be added to the polyamides during or after the polycondensation reaction. Delustrants, e.g. cerium dioxide, titanium dioxide, thorium dioxide or ytrium trioxide may also be added to the polyamides. Examples (1) and (2) describe the polymerization of:-(1) hexamethylene diammonium adipate in the presence of disodium dihydrogen hypophosphate hexahydrate and (a) titanium (III) chloride hexahydrate, (b) cerium (III) chloride; (2) caprolactam in the presence of (a) thorium hypophosphate and titanium (III) chloride hexahydrate, whilst in Example (3) polycaprylic lactam is mixed with tetrasodium hypophosphate, titanium (III) acetate and titanium dioxide.

Patent Agency Ranking