摘要:
Co-vulcanizates having good mechanical properties are obtained from mixtures of: (a) from 35 to 5%, by weight, of hydrocarbon elastomers; (b) from 65 to 95%, by weight, of nitrile group-containing elastomers having from 25 to 140 nitrile nitrogen atoms and less 12 double bonds per 1000 carbon atoms; by radical cross-linking.
摘要:
This invention relates to vulcanizable diene rubber compounds with a high capacity for the addition of sulfur to be varied while processing safety is maintained, for the production of improved rubber moldings, particularly tire components.
摘要:
Hydrogenation products of olefinically unsaturated polymers having nitrile groups prepared in the presence of ruthenium catalysts in a solvent comprising a low-molecular ketone and a secondary or tertiary C.sub.3 -C.sub.6 -alcohol by hydrogenation, can be processed to vulcanizates with improved compression set values.
摘要:
Equipment for the exploration and/or production of petroleum and natural gas having elastomeric components have high resistance to materials encountered if the elastomeric components are shaped from a hydrogenated butadiene-acrylonitrile copolymer with a residual double bond content less than 1% and unhydrogenated nitrile groups.
摘要:
Co-vulcanizates are produced from mixtures of (a) from 95 to 5% by weight of fluoroelastomers and (b) from 5 to 95% by weight of elastomers which contain nitrile groups and have from 25 to 140 nitrile-nitrogen atoms and less than 35 double bonds per 1000 carbon atoms, and (c) conventional mixture ingredients, the percentages relating to the sum total of (a) and (b). The co-vulcanizates are suitable for the production of seals and other rubber articles, in particular for areas of use which impose exacting requirements.
摘要:
The invention relates to novel organic sulphur-nitrogen compounds, their preparation, and use as vulcanizing agents for unsaturated rubbers and mixtures of these.
摘要:
The invention relates to a novel process for preparing salts of S-alkyl esters of thiosulphuric acid by reacting organic dihalides with thiosulphates in water.
摘要:
This invention relates to vulcanizable rubber compounds based on styrene-butadiene rubber, which contain a special vulcanizing system, which are reinforced with silica and which contain a filler activator, for tire treads which exhibit improved abrasion-resistance.
摘要:
This invention relates to shaped, non-dusting, non-sticking, free-flowing masticating agents based on 2,2'-dibenzoamidodiphenyl disulphide and paraffins having a solidification point in the range from 50.degree. to 85.degree. C., a needle penetration of 8 to 25 in 1/10 mm, a viscosity of 2 to 10 mm.sup.2 /s. The masticating agents according to the invention are used to reduce the viscosity of rubbers containing double bonds and are customarily used in quantities of 0.01 to 3 parts by weight.
摘要翻译:本发明涉及一种基于2,2'-二苯甲酰氨基二苯基二硫化物和固化点在50-85℃范围内的链烷烃的成型,无粉尘,不粘,自由流动的咀嚼剂, 8至25 in + E,fra 1/10 + EE mm,粘度为2至10 mm2 / s。 根据本发明的咀嚼剂用于降低含有双键的橡胶的粘度,并且通常以0.01至3重量份的量使用。