C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 175/04 (2006.01) C08G 18/28 (2006.01) C08G 18/42 (2006.01) C08G 18/66 (2006.01) C08K 3/26 (2006.01) C08K 3/38 (2006.01) C08K 5/37 (2006.01) C09D 5/34 (2006.01) C09J 127/08 (2006.01) C09J 175/06 (2006.01)
Patent
CA 2066649
Abstract Multipurpose adhesive surfacers The invention relates to optionally solventless two- component polyurethane surfacers containing finely divided fillers in a high pigment volume concentration based on a polyfunctional isocyanate component (B) and a polyol compo- nent (A) which is liquid at room temperature and which con- sists of mixture components containing isocyanate-reactive hydroxyl groups with an at least predominant content of branched-chain polyols (A1) containing ester and ether groups, which contains at least a proportion of the finely divided fillers and, optionally, the additives and which, for application, is mixed with the isocyanate component (B) and applied as a mixture which can still be processed by shaping. To form a substantially waterproof, elastic mul- tipurpose adhesive surfacer which combines high adhesive strength with high volume stability, the polyol component (A) contains oleopolyols having an OH functionality of at least 2 to about 3 as an additional mixture component (A2) and, if desired, low-viscosity monofunctional alcohols of distinctly oleophilic character, which are at least sub- stantially involatile at room temperature, in admixture with component (A1) as another additional mixture component (A3).
Gruenewaelder Bernhard
Haller Werner
Kluth Hermann
Parent Bernhard
Wegner Juergen
Borden Ladner Gervais Llp
Henkel Kommanditgesellschaft Auf Aktien
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