Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K3/00—Use of inorganic substances as compounding ingredients
  • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
  • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
  • C01B13/14—Methods for preparing oxides or hydroxides in general
  • C01B13/36—Methods for preparing oxides or hydroxides in general by precipitation reactions in aqueous solutions
  • C01B13/363—Mixtures of oxides or hydroxides by precipitation
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
  • C01F7/00—Compounds of aluminium
  • C01F7/78—Compounds containing aluminium, with or without oxygen or hydrogen, and containing two or more other elements
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
  • C01G49/00—Compounds of iron
  • C01G49/009—Compounds containing iron, with or without oxygen or hydrogen, and containing two or more other elements
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K3/00—Use of inorganic substances as compounding ingredients
  • C08K3/32—Phosphorus-containing compounds
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2002/00—Crystal-structural characteristics
  • C01P2002/20—Two-dimensional structures
  • C01P2002/22—Two-dimensional structures layered hydroxide-type, e.g. of the hydrotalcite-type

Definitions

• the invention relates to compounds of a more specific composition, processes for their preparation and their use as stabilizers for halogen-containing
• thermoplastic resin e.g.
• Polyvinyl chloride when heated to melt deformation while eliminating hydrogen chloride, changes into a polyene structure, whereby the polymer
• stabilizers are therefore usually added to the polymer before processing. As stabilizers
• DE-OS 22 33 743 proposes known ones
• EP-A-0 063 180 describes a combination of ⁇ -diketones and hydrotalcite as a PVC stabilizer.
• U.S. Patent 4,221,687 describes that
• the invention has for its object to provide new compounds and a process for their preparation, which are particularly suitable as stabilizers for halogen-containing thermoplastic resins, without the above-mentioned disadvantages of the known stabilizers to be classified, in particular classified as non-toxic.
• X is a trivalent metal
• Y 2+ is a divalent metal
• n is an integer.
• the trivalent metal X 3+ is selected from Al and Fe and the divalent metal Y 2 + is selected from Sr, Ba, Zn, Sn and Fe.
• Silicate mono- and di-carboxylates, benzoates, lactate, phosphonates, o-phosphate, m-phosphate and polyphosphates. These anions can be used alone or in combinations.
• thermoplastic resins and those made therefrom
• the compounds according to the invention do not cause any discoloration of the moldings produced from, for example, rigid PVC, and also the color retention and the weathering stability of those with
• Compounds stabilized according to the invention are those with toxic heavy metal compounds
• the invention also relates to a method for
• the reaction is preferably carried out at a pH of 9-11.
• reaction temperatures are preferably between 40 and 100 ° C, particularly preferably between 60 and
• calcium chloride its hydroxide and / or oxide is preferably used.
• a metal compound of the divalent metal As a metal compound of the divalent metal
• ⁇ preferably zinc chloride, its hydroxide and / or oxide used.
• Aluminum chloride and / or hydroxide and / or sodium aluminate are preferably used as trivalent metal compounds.
• Sodium hydroxide is preferably used to adjust the pH.
• reaction product obtained in the above reaction is separated off in a manner known per se, preferably by filtration.
• separated reaction product is also carried out in a manner known per se, for example by washing the filter cake with water and drying the washed residue
• reaction product obtained directly during the reaction can be carried out before
• Separation can be treated with surface-active agents.
• surfactants are fatty acids and their metal salts, silanes and titanates.
• Stearic acid and / or its metal salts with calcium and / or zinc are preferably used.
• These agents are used in amounts of 0.01-10% by weight, preferably 0.5-5% by weight, based on the compounds according to the invention.
• Such a treatment improves the dispersibility of the compounds according to the invention as stabilizers in halogen-containing resins.
• Polyvinyl chloride is particularly suitable for stabilization with the compounds according to the invention.
• Polyvinylidene chloride chlorinated polyethylene, chlorinated polypropylene, chlorinated ethylene / vinyl acetate copolymer and chlorosulfonated polyethylene.
• Resins of the polyvinyl chloride type i.e. Vinyl chloride homo- and copolymers of vinyl chloride with other comonomers
• the compounds of the invention can be stabilized.
• the compounds of the invention can be used with metal soaps, i.e. Salting of
• Fatty acids can be combined. Examples of that are
• Metals used are: magnesium, calcium, strontium, barium, zinc and aluminum.
• carboxylates such as ethyl 2-hexanoate, decanate, laurate, stearate, palmitate, oleate,
• these metal salts can be used in amounts between 0.05% and 10%, preferably between 0.1 and 5% by weight, based on the halogen-containing polymer.
• Costabilizers such as Polyols, phosphites,
• Polyhydric alcohols e.g.
• Trimethylolpropane Trimethylolpropane, glycerin, pentaerythritol,
• Polyvinyl alcohol and their di- or oligomers or partial esters thereof are used.
• Suitable phosphites are alkyl or aryl esters of phosphorous acid, e.g. Triphenyl phosphite,
• Trisnonylphenyl phosphite Trisnonylphenyl phosphite
• ⁇ -diketones e.g. Acetylacetone, dibenzoylmethane, stearoylbenzoylmethane, benzoylacetic acid, 2,2'-methylenebiscyclohexane-1,3-dione, palmitoyltetralone,
• Bis (2-hydroxybenzoyl) methane or their metal salts with e.g. Ca, Zn, Mg can be used.
• isocyanurate e.g. Trishydroxyethyl isocyanurate can be used.
• a suitable dihydropyridine is e.g.
• a suitable thioglycolic acid ester is e.g.
• antioxidants such as, for example, benzophenones, benzotriazoles or sterically hindered amines (HALS), pigments, fillers and processing aids.
• UV absorbers such as, for example, benzophenones, benzotriazoles or sterically hindered amines (HALS)
• pigments such as, for example, benzophenones, benzotriazoles or sterically hindered amines (HALS)
• HALS sterically hindered amines
• Di- (2-ethylhexyl) phthalate may be included.
• additives and stabilizers can be added to the polymer individually or as mixtures of several components.
• the additive and / or stabilizer mixture can be used in powder form, as granules or as a melt product.
• aqueous solution (2.5 1), which contains 294 g CaCl 2 ⁇ 2H 2 O (2 mol) and 241.5 g AlCl 3 ⁇ 6H 2 O (1 mol), is heated to 70 ° C., followed by a pH of 10.0 was set in a 50% NaOH solution. The suspension formed is stirred for 2 hours at 85 ° C. and then a solution containing 111 g of tetrasodium pyrophosphate (0.5 mol) is added. After 12 hours, 2 g of stearic acid are added and the reaction product is filtered off, washed and dried in a drying cabinet at 120 ° C. for 5 hours.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Inorganic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Life Sciences & Earth Sciences (AREA)
• Geology (AREA)
• Compositions Of Macromolecular Compounds (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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Citations (5)

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• 1991
  • 1991-02-08 DE DE4103916A patent/DE4103916A1/de active Granted
• 1992
  • 1992-02-05 IE IE037892A patent/IE920378A1/en not_active Application Discontinuation
  • 1992-02-05 ZA ZA92831A patent/ZA92831B/xx unknown
  • 1992-02-07 AU AU12247/92A patent/AU1224792A/en not_active Abandoned
  • 1992-02-07 PT PT100107A patent/PT100107A/pt not_active Application Discontinuation
  • 1992-02-07 WO PCT/DE1992/000095 patent/WO1992013800A1/de not_active Ceased
  • 1992-02-10 MX MX9200568A patent/MX9200568A/es unknown

Patent Citations (5)

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