| 摘要 |
In the present invention there are disclosed single-component polyurethane reactive materials based on (A) polyisocyanates, (B) higher-molecular compounds with reactive hydrogen atoms, (C) optionally low-molecular agents for elongation of a chain or cross-linking agents, (D) optionally softening agents, (E) optionally PU-catalysts and F) optionally ordinary auxiliary substances and admixtures, that contain as (A) surface-modified, fine-grained polyisocyanates, the NCO-groups on the surface of which deactivated from 0.1 to 25 equivalent percent based on the total number of the NCO-groups and as (B) a mixture consisting of (B1) 5 to 40 percent by weight, based on the (B) component, of at least one aliphatic polyether polyamine and (B2) 95 to 60 percent by weight, based on the (B) component of a polyol mixture comprising (i) 10 to 60 percent by weight, based on the (B2) component of at least one polyester polyol, having structure of carbonic acid ester and/or polycarboxylic acid ester and (ii) 90 to 40 percent by weight, based on the (B2) component of at least one polyether polyol with predominantly primary hydroxyl functions. The present invention further relates to the use of those reactive materials as coating, adhesive, damping as well as sealing materials.
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