FLAME RESISTANT REINFORCED POLYOLEFIN MIXTURE

    公开(公告)号:ZA731533B

    公开(公告)日:1973-12-19

    申请号:ZA731533

    申请日:1973-03-06

    Applicant: HOECHST AG

    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.

    6.
    发明专利
    未知

    公开(公告)号:SE427113B

    公开(公告)日:1983-03-07

    申请号:SE1107871

    申请日:1971-09-01

    Applicant: HOECHST AG

    Inventor: WOLTERS E ROOS G

    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)

    7.
    发明专利
    未知

    公开(公告)号:NO132435C

    公开(公告)日:1975-11-12

    申请号:NO325571

    申请日:1971-09-01

    Applicant: HOECHST AG

    Inventor: WOLTERS E ROOS G

    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)

    8.
    发明专利
    未知

    公开(公告)号:NO132435B

    公开(公告)日:1975-08-04

    申请号:NO325571

    申请日:1971-09-01

    Applicant: HOECHST AG

    Inventor: WOLTERS E ROOS G

    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)

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