Abstract:
Highly concentrated carbon black-thermoplastic synthetic resin concentrates are prepared by adding the carbon black to the synthetic resin in at least two places in series employing a conveying apparatus which is a continuously operating screw kneader.
Abstract:
The present invention provides a carbon black having the following physico-chemical characteristics: primary particle size nm 35 - 120 BET surface area sq m/q 10 - 50 iodine adsorption mg/g 10 - 55 volatile components % 2 - 8 pH value 3 - 6 acidity ml of 0.1N acid per 2 - 12 100 g of carbon black DBF number ml/100 g 40 - 140 The carbon black is useful in varnish systems such as varnishes and varnish parts.
Abstract:
The invention relates to a silane/filler preparation, consisting essentially of from 5 to 70% by weight of at least one silane corresponding to the following formula Xp-CmH2m+1-pSiRn1(OR)3-n, I in which X=a halogen atom, preferably chlorine or bromine, p=1 or 2, m=1 to 5, R1=a C1-C5 alkyl group, C5-C8-cycloalkyl group or a phenyl group, R=a C1-C5-alkyl group, a C5-C8-cycloalkyl group, a phenyl group, a benzyl group or a C1-C5-alkoxy-C1-C5-alkyl group, and n=0, 1 or 2, and-respectively balanced to 100%-from 95 to 30% by weight of at lesat one inorganic filler, preferably carbon black and silicate fillers as, e.g., silica. There is also disclosed a process for the production of the silane/filler preparation and its use in optionally cross-linkable polymeric moulding compositions or vulcanizable or cross-linkable rubber moulding compositions such as sulphur-vulcanizable moulding compositions based on natural rubber and/or synthetic rubber.
Abstract:
The present invention provides in a process for producing furnace black by injecting oily crude soot material into a stream of hot combustion gases produced by reaction of fuel with reaction air, quenching and recovering the soot by separation from the flue gases while the reaction air is heated by means of the flue gases, the improvement in which the flue gases are burned with secondary air in a combustion device, the reaction air is heated therewith to temperatures between 600 and 1250.degree.C and the heated reaction air is introduced to produce the combustion gases.
Abstract:
The invention relates to a silane/filler preparation, consisting essentially of from 5 to 70% by weight of at least one silane corresponding to the following formula Xp-CmH2m+1-pSiRn1(OR)3-n, I in which X=a halogen atom, preferably chlorine or bromine, p=1 or 2, m=1 to 5, R1=a C1-C5 alkyl group, C5-C8-cycloalkyl group or a phenyl group, R=a C1-C5-alkyl group, a C5-C8-cycloalkyl group, a phenyl group, a benzyl group or a C1-C5-alkoxy-C1-C5-alkyl group, and n=0, 1 or 2, and-respectively balanced to 100%-from 95 to 30% by weight of at lesat one inorganic filler, preferably carbon black and silicate fillers as, e.g., silica. There is also disclosed a process for the production of the silane/filler preparation and its use in optionally cross-linkable polymeric moulding compositions or vulcanizable or cross-linkable rubber moulding compositions such as sulphur-vulcanizable moulding compositions based on natural rubber and/or synthetic rubber.
Abstract:
Beaded carbon black is disclosed with a water content of 30 to 80% by weight which are used for coloring of paper and concrete. The product has the advantage of dust-free handling and a higher jet black color compared to conventional carbon black powder.
Abstract:
The invention relates to a silane/filler preparation, consisting essentially of from 5 to 70% by weight of at least one silane corresponding to the following formula Xp-CmH2m+1-pSiRn1(OR)3-n, I in which X=a halogen atom, preferably chlorine or bromine, p=1 or 2, m=1 to 5, R1=a C1-C5 alkyl group, C5-C8-cycloalkyl group or a phenyl group, R=a C1-C5-alkyl group, a C5-C8-cycloalkyl group, a phenyl group, a benzyl group or a C1-C5-alkoxy-C1-C5-alkyl group, and n=0, 1 or 2, and-respectively balanced to 100%-from 95 to 30% by weight of at lesat one inorganic filler, preferably carbon black and silicate fillers as, e.g., silica. There is also disclosed a process for the production of the silane/filler preparation and its use in optionally cross-linkable polymeric moulding compositions or vulcanizable or cross-linkable rubber moulding compositions such as sulphur-vulcanizable moulding compositions based on natural rubber and/or synthetic rubber.