摘要:
A novel process for the degradation of nitrile rubber by metathesis using ruthenium- or osmium-based catalysts which have both a substituted or unsubstituted imidazolidine ligand and a carbene ligand bearing a phosphonium radical is provided.
摘要:
The present invention relates to a composition comprising thermoplastic materials and crosslinked microgels which are not crosslinked by high-energy radiation, processes for its preparation, its use for the production of thermoplastically processable shaped articles and shaped articles produced from the composition.
摘要:
The present invention provides peroxidically crosslinked hydrogenated vinylpolybutadienes which serve for production of technical rubber products and which have very good recovery performance over a wide temperature range.
摘要:
The invention relates to a composition comprising at least one specific organic crosslinkable medium and at least one microgel that has not been crosslinked by means of high-energy radiation, to processes for their preparation, to uses of the compositions, to microgel-containing polymers prepared therefrom, and to moulded bodies or coatings produced therefrom.
摘要:
The invention relates to rubber mixtures which contain microgels and isocyanatosilanes and vulcanisates produced therefrom. By adding isocyanatosilanes the mechanical properties of the vulcanisates, in particular the elongation properties and the abrasion resistance, are improved without the difference in rebound resilience at 70° C. and 23° C. being reduced.
摘要:
The invention discloses an improved process for the production of cross-linked rubber particles. The cross-linking agents are added to the aqueous rubber dispersions and converted at relatively high temperatures without inertization of the reaction mix and without pressurizing of an inert gas. The cross-linked rubber particles are suitable, for example, for the production of technical rubber products and for various tire components.
摘要:
The present invention relates to filled rubber mixes made from polyether/diolefin rubbers. The rubber mixes according to the present invention are suitable for the production of highly reinforced, abrasion-resistant moldings, in particular for the production of tires which exhibit low rolling resistance and elevated wet skid resistance.
摘要:
The invention relates to rubber mixtures of at least one rubber containing double bonds, at least one rubber gel and at least one masked bismercaptan, and to vulcanization products and rubber shaped articles produced therefrom. The vulcanization products produced from the rubber mixtures according to the present invention show an improvement in the modulus level, a reduction in the DIN abrasion and a reduction in the heat build-up under dynamic stress.
摘要:
Mixtures of A) polybutadiene gel and B) other rubbers containing C.dbd.C double bonds, the quantity of polybutadiene gel A), based on the sum of A)+B), being 1 to 70% by weight, show as vulcanizates a favorable combination of the properties hysteresis loss and abrasion resistance.