Search International and National Patent Collections

1. (WO1999005194) COATING AGENT AND METHOD FOR PRODUCING SAME

Pub. No.:    WO/1999/005194    International Application No.:    PCT/EP1998/004438
Publication Date: Fri Feb 05 00:59:59 CET 1999 International Filing Date: Fri Jul 17 01:59:59 CEST 1998
IPC: C08G 18/62
C09D 175/04
Applicants: BASF COATINGS AG
BAUMGART, Hubert
RINK, Heinz-Peter
BRUCHMANN, Bernd
BARTOL, Fritz
MOHRHARDT, Günther
Inventors: BAUMGART, Hubert
RINK, Heinz-Peter
BRUCHMANN, Bernd
BARTOL, Fritz
MOHRHARDT, Günther
Title: COATING AGENT AND METHOD FOR PRODUCING SAME
Abstract:
The invention relates to a two-component coating agent, containing (I) a component containing at least one isocyanate as cross-linking agent and (II) a component containing at least one binding agent with functional groups which react with isocyanate groups. The two-component coating agent is characterized in that the component (I) comprises at least one isocyanate Ia) with at least one diisocyanate structural unit having an unsaturated or aromatic or non-aromatic ring structure with between 5 and 10 ring atoms, and two isocyanate groups linked to said ring structure. If the ring structure is non-aromatic, both isocyanate groups are linked to the ring structure via linear C1-C9 alkyl and/or linear C2-C10 ether alkyl or one isocyanate group is linked directly to the ring structure and the other isocyanate group is linked via linear C2-C9 alkyl or linear C2-C10 ether alkyl. If the ring structure is unsaturated or aromatic, at least one isocyanate group is linked to the ring structure via linear C2-C9 alkyl and/or linear C2-C10 ether alkyl, neither of which present benzylic hydrogen atoms. Instead of said isocyanate Ia) or in addition thereto an oligomer Ib) of said isocyanate Ia) with between 2 and 10 isocyanate units, especially a trimer Ib), and/or partially blocked isocyanates Ia) and/or partially blocked oligomers Ib) (= cross-linking agent Ic) can be used.