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HYDROLYSIS-STABLE POLYURETHANE FOR USE IN THE OFF-SHORE REALM.
HYDROLYSIS-STABLE POLYURETHANE FOR USE IN THE OFF-SHORE REALM.
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机译:水解稳定型聚氨酯,用于海上油田。
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摘要
The invention relates to a method for producing polyurethane-coated line elements, in which (a) aliphatic polyisocyanate is mixed with (b) compounds containing at least two isocyanate-reactive hydrogen atoms, (c) catalyst, and (d) optionally, other auxiliary agents and/or additives, to obtain a first reaction mixture, and said reaction mixture is directly or indirectly applied to a tube and is allowed to finish reacting to obtain a polyurethane layer, wherein the compound containing at least two isocyanate-reactive hydrogen atoms contains a compound that is based on an alkoxylation product of an aromatic starter molecule. The invention further relates to line elements obtainable according to a method of this kind.
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