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US 6,188,828 B1Granted
Filling material
AssigneeMWO Gesellschaft zur Herstellung von chemisch-technischen Produkten mbH
InventorMarkus Mencke
Life of this patent
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Abstract
Filling materials are prepared which contain polyoxyalkylenes and surfactants. These filling materials are particularly well-suited for optical waveguides of which the cable and/or core sheaths consist essentially of polyolefin plastics.
Claims14
Filling material containing, related in each case to the total weight of the filling material:
- (a) 50 to 99% by weight of one or more polyoxyalkylenes, of which the alkylene units comprise in each case 2 to 5 carbon atoms and in each case 2 to 4 ether bonds, wherein the polyoxyalkylenes have a molecular weight from 200 to 5000 g/mol,
- (b) 1 to 10% by weight of one or more colloidal oxides and/or hydroxides of silicon and/or of aluminium, and
- (c) 0.1 to 10% by weight of one or more surfactants, the surfactant being
- (A) an anionic or cationic surfactant, and/or
- (B) a polyol, having at least 3 hydroxy groups, at least one of these hydroxy groups being etherised and/or esterised.
2 more elements
Dependencies are inferred from the claim text.