STABILIZED RED PHOSPHORUS AND PROCESS FOR ITS MANUFACTURE

    公开(公告)号:CA1128292A

    公开(公告)日:1982-07-27

    申请号:CA364042

    申请日:1980-11-05

    Applicant: HOECHST AG

    Abstract: The invention relates to stabilized, pulverulent red phosphorus, consisting of phosphorus particles having a particle size of at most about 2 mm, and an oxidation stabilizer which envelops the phosphorus particles in the form of a thin layer , whereina) The oxidation stabilizer is a combination of aluminum hydroxide and is a combination of system having an epoxide equivalent weight of about 170 to 500.b) the total amount of the oxidation stabilizer is 0.1-5 % by weight, based on the amount of red phosphorus, andc) the proportion of aluminum hydroxide is about 0.01 to 3 % by weight, and the proportion of epoxide resin is about 0.09 to 4.99% by weight, in each case based on the amount of the red phosphorus.

    PROCESS FOR IMPARTING ANTISTATIC PROPERTIES TO RUBBER

    公开(公告)号:CA1079517A

    公开(公告)日:1980-06-17

    申请号:CA274637

    申请日:1977-03-23

    Applicant: HOECHST AG

    Abstract: Antistatic properties are imparted to rubber by admixing it with conductive carbon black, vulcanizing the resulting blend and forming the rubber. More specifically, the rubber is admixed with about 5 to 40 weight % of conductive carbon black which has an ASnumber of 15 to 35, a specific electric resistance of 10-1 up to 10-3 ohms x cm under a moulding pressure of 100 to 180 atmospheres absolute, a bulk density of 100 to 180 g/liter, a BET-surface area of 100 to 1000 m2/g. the carbon black is made by a process wherein an aqueous suspension of carbon black with an AS-number higher than 15 and prepared by subjecting hydrocarbons, which are liquid at room temperature, to thermal conversion at 1200 to 2000.degree.C. under pressures within the range 1 and 80 atmospheres absolute, and in the presence of oxygen or an oxygen-containing gas, and water scrubbing the resulting carbon-black-containing reaction gas, is intimately blended at 5 to 120.degree.C. under pressures of 1 to 20 atmospheres absolute, in liquid phase at a pH-value of 7 to 10, and for 1 to 20 minutes, with vaporizable liquid aliphatic or cycloaliphatic hydrocarbons, the carbon black is separated from liquid matter, then heated and thereby freed from hydrocarbons and water, and finally annealed for 20 to 30 minutes at 200.degree.C up to 2200.degree.C.

    STABILIZED RED PHOSPHORUS AND PROCESS FOR MAKING IT

    公开(公告)号:CA1075439A

    公开(公告)日:1980-04-15

    申请号:CA277968

    申请日:1977-05-09

    Applicant: HOECHST AG

    Abstract: STABILIZED RED PHOSPHORUS AND PROCESS FOR MAKING IT The invention provides stabilized pulverulent red phosphorus. It comprises a homogeneous blend of red phosphorus particles with a size of at most about 2 mm and a metal compound of the second or third group of the Periodic System as an oxidation stabilizer, wherein the metal compound is the aluminum, magnesium, calcium or zinc salt of an acid orthophosphoric acid ester of a long chain aliphatic alcohol, which may be ethoxylated, or phenol, the metal compound being present in the homogeneous blend in a proportion of about 0.25 to 5 weight %.

    STABILIZED RED PHOSPHORUS AND PROCESS FOR MAKING IT

    公开(公告)号:CA1074980A

    公开(公告)日:1980-04-08

    申请号:CA279595

    申请日:1977-06-01

    Applicant: HOECHST AG

    Abstract: STABILIZED RED PHOSPHORUS AND PROCESS FOR MAKING IT The invention provides stabilized pulverulent red phosphorus. It comprises a homogeneous blend of red phosphorus particles with a size of at most about 2 mm and a metal compound of the second or third group of the Periodic System as an oxidation stabilizer, wherein the metal compound is the neutral aluminum, magnesium, calcium or zinc salt of orthophosphoric acid, the metal compound being present in the homogeneous blend in a proportion of about 0.5 to 5 weight %.

    79.
    发明专利
    未知

    公开(公告)号:FI55215C

    公开(公告)日:1979-06-11

    申请号:FI239972

    申请日:1972-08-31

    Applicant: HOECHST AG

    Abstract: Water-soluble salts of acid carboxylic acid esters of bivalent aliphatic or olefinically unsaturated carboxylic acids or hydroxycarboxylic acids and at least trihydric aliphatic alcohols are used as builders for detergent and cleansing agents. Each hydroxylic group of the alcohol or optionally of the carboxylic acid has a carboxylic acid-molecule attached thereto.

    80.
    发明专利
    未知

    公开(公告)号:NO139225C

    公开(公告)日:1979-01-24

    申请号:NO332672

    申请日:1972-09-18

    Applicant: HOECHST AG

    Abstract: 1397957 Detergents containing builders HOECHST AG 14 Sept 1972 [24 Sept 1971] 42706/72 Heading C5D [Also in Division C2] Builders for detergent and cleansing agents comprise water-soluble salts of acid carboxylic acid esters prepared by reacting at least trivalent, 6-10C, aliphatic olefinically unsaturated carboxylic acids or hydroxy-carboxylic acids with aliphatic alcohols (3-6 OH groups), and in which each hydroxylic group of the alcohol and optionally the hydroxycarboxylic acid is esterified with a carboxylic acid molecule. Citric, aconitic, tricarballylic, dihydroxy-tricarballylic, nitrotriacetic and ethylenediamine-tetracetic acids may be used with glycerol, erythritol, pentaerythritol, mannitol, sorbitol or sugar alcohol (4-6 C) and the salts are of alkali metal or ammonium ion. A proportion of 10-80% by weight of salts may be used and then ion-active and/or non-ionic tensides and further conventional additives may be present. Examples describe the use of builders prepared from glycerol, sorbitol or pentaerythritol with nitric acid used with dodecylbenzene sulphonate, tallow fatty alcohol and hardened tallow soap, and also with additional magnesium silicate, sodium silicate, sodium perborate, sodium sulphate and tylose in detergent wash liquors.

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