摘要:
The invention relates to moulded parts containing a plurality of luminous bodies incorporated into a silicon matrix, the silicon matrix consisting of an inner soft silicon matrix A which is surrounded by at least one hard silicon matrix B. The silicon matrix B is optionally coated with a top coat C.
摘要:
Organosilicon compounds bearing keto or aldehyde groups are easily prepared in high yield by oxidation of a carbinol-functional precursor by an oxidizing agent in the presence of a nitrogen-containing free radical mediator which contains aliphatic, cycloaliphatic, heterocyclic, or aromatic NO—, NOH—, or H—N—OH group. The oxidation may be conventional, i.e. using air, oxygen, or other oxidant, may be electrochemical, or enzymatic.
摘要:
Polymers containing repeating organopolysiloxane blocks and including quaternary ammonium groups in the polymer chain exhibit good biocidal properties, while also exhibiting good washfastness, hydrophilicity, and softness.
摘要:
Organosilicon compounds contain both cationic quat groups and polyoxyalkylene polyether groups prepared by an efficient process which can utilize commercially available starting materials. The polyether groups are not linked to siloxane moieties by quat linking groups, but rather by amine or ammonium groups. The polyester groups may also serve as linking groups between organosilicon moieties.
摘要:
A process for the preparation of organosilicon compounds bearing silanol groups, in particular linear polyorganosiloxanes bearing lateral silanol groups, in a predictable manner and high yield, comprising reacting a similarly constructed Si—H functional organosilicon compound with water in the presence of a Group VIII metal catalyst, optionally in the presence of a cocatalyst. Predictable product structure and very few byproducts are particularly advantageous.
摘要:
The present invention relates to a process for adding Si-bonded hydrogen to aliphatically unsaturated compounds containing carbon-carbon multiple bonds and ether oxygen atoms in the presence of carbinol groups, wherein the reaction mixture comprises, as a further component, at least one cyclic ether.