Abstract:
FLAME RESISTANT, REINFORCED POLYOLEFIN MIXTURES CONTAINING, IN ADDITION TO POLYOLEFIN, TALCUM, ANTIMONY TRIOXIDE AND TETRABROMOPHTHALIC ANHYDRIDE OR AN ADDITION PRODUCT OF 3 MOLES OF HEXACHLORO-CYCLPPENTADIENE PER MOLE OF TRISACRYLOLYL-PERHYDROTRIAZINE.
Abstract:
THE STABILIZATION OF POLYOXYMETHYLENES AGAINST OXIDATION AND THERMAL DECOMPOSITION IS CARRIED OUT BY ADDING A COMBINATION OF ALKALINE EARTH METAL COMPOUNDS AND ESTERS OF (ALKYL-HYDROXYPHENYL)-CARBOXYLIC ACIDS WITH POLYOLS. MOLDING COMPOSITIONS MADE FROM POLYOXYMETHYLENES SO STABILIZED MAY BE THERMOPLASTICALLY PROCESSED: THEY ARE SUITABLE FOR THE MANUFACTURE OF SEMI-FINISHED AND FINISHED GOODS.
Abstract:
1406582 Flame resistant polyolefin compositions HOECHST AG 2 March 1973 [7 March 1972] 10295/73 Heading C3P Compositions comprise (1) 50 to 86 weight per cent of a polyolefin selected from polyethylene, polypropylene and copolymers of ethylene with up to 15 mol. per cent of higher olefins or of propylene with up to 15 mol. per cent of higher olefins or ethylene, (2) 5 to 40 weight per cent of talcum, (3) 5 to 25 weight per cent of an organic halogen-containing flame retarding agent and (4) 4 to 10 weight per cent of antimony trioxide. The flame retardant may be tetrabromophthalic anhydride or an adduct of 3 moles of hexachlorocyclopentadiene with 1 mole of trisacryloyl perhydrotriazine. In examples the compositions comprise polypropylene stabilized with bis-(3,3-bis-(4-hydroxy- 3-t.butylphenyl) butanoic acid) glycol ester, dioctadecyl disulphide, dibutyl tin carboxylate and calcium stearate.
Abstract:
Procedure for obtaining stabilized polyoxymethylene molding compounds, characterized in that it comprises: A) mixing: 1) 0.05 to 4% by weight, based on polyoxymethylene, of compounds of the formula ** formula ** Where R1 is a residue of alkyl with 1 to 6 carbon atoms, R2 is a hydrogen atom or an alkyl residue with 1 to 6 carbon atoms, A is a bi- to hexavalent aliphatic hydrocarbon residue, with 1 to 12 carbon atoms, m is 0 or an integer from 1 to 6 and n corresponds to the valence of A, with: 2) 0.01 to 3% by weight, based on polyoxymethylene, of alkaline earth salts of carboxylic acids with 10 to 20 carbon atoms and/or alkaline earth hydroxides and, B) incorporating the obtained mixture into the polyoxymethylene as a stabilizer, either in powder form, through mixers, for example dry mixers or dissolved in a suitable solvent, for example methanol, acetone or methyl chloride, which is stirred on the polymer, returning to evaporating the solvent, optionally then granulating in a commercially available extrusion press. (Machine-translation by Google Translate, not legally binding)
Abstract:
Procedure for obtaining stabilized polyoxymethylene molding compounds, characterized in that it comprises: A) mixing: 1) 0.05 to 4% by weight, based on polyoxymethylene, of compounds of the formula ** formula ** Where R1 is a residue of alkyl with 1 to 6 carbon atoms, R2 is a hydrogen atom or an alkyl residue with 1 to 6 carbon atoms, A is a bi- to hexavalent aliphatic hydrocarbon residue, with 1 to 12 carbon atoms, m is 0 or an integer from 1 to 6 and n corresponds to the valence of A, with: 2) 0.01 to 3% by weight, based on polyoxymethylene, of alkaline earth salts of carboxylic acids with 10 to 20 carbon atoms and/or alkaline earth hydroxides and, B) incorporating the obtained mixture into the polyoxymethylene as a stabilizer, either in powder form, through mixers, for example dry mixers or dissolved in a suitable solvent, for example methanol, acetone or methyl chloride, which is stirred on the polymer, returning to evaporating the solvent, optionally then granulating in a commercially available extrusion press. (Machine-translation by Google Translate, not legally binding)
Abstract:
Procedure for obtaining stabilized polyoxymethylene molding compounds, characterized in that it comprises: A) mixing: 1) 0.05 to 4% by weight, based on polyoxymethylene, of compounds of the formula ** formula ** Where R1 is a residue of alkyl with 1 to 6 carbon atoms, R2 is a hydrogen atom or an alkyl residue with 1 to 6 carbon atoms, A is a bi- to hexavalent aliphatic hydrocarbon residue, with 1 to 12 carbon atoms, m is 0 or an integer from 1 to 6 and n corresponds to the valence of A, with: 2) 0.01 to 3% by weight, based on polyoxymethylene, of alkaline earth salts of carboxylic acids with 10 to 20 carbon atoms and/or alkaline earth hydroxides and, B) incorporating the obtained mixture into the polyoxymethylene as a stabilizer, either in powder form, through mixers, for example dry mixers or dissolved in a suitable solvent, for example methanol, acetone or methyl chloride, which is stirred on the polymer, returning to evaporating the solvent, optionally then granulating in a commercially available extrusion press. (Machine-translation by Google Translate, not legally binding)