METHOD OF PRODUCING ADHERENT COATINGS ON RESINOUS SUBSTRATES
摘要
The present invention is directed to a method of producing an adherent coating over untreated thermoplastic and thermosetting resinous substrates from a coating composition that includes a crosslinkable component and a crosslinking component that are mixed prior to application and applied over the substrate. The crosslinkable component includes a polymeric mix containing at least one crosslinkable copolymer polymerized from a monomer mixture comprising one or more ethylenically unsaturated monomers having on average 1 to 10, preferably 1 to 4 and more preferably 1 to 2 hydroxyl groups and a saturated hydrocarbon polymer. The crosslinkable component includes one or more cycloaliphatic polyisocyanate of the formula: R<SUP>1</SUP>(R<SUP>2</SUP>-NCO)<SUB>n</SUB> wherein R<SUP>1</SUP> is a substituted or unsubstituted cycloaliphatic group, R<SUP>2</SUP> is independently selected from a direct bond, a straight aliphatic group or branched aliphatic group, and wherein n ranges from 2 to 10. The method is well suited to produce adherent coatings on olefinic substrates such as those used in automotive and general commercial application without any pretreatment of the resinous substrates.
申请公布号
WO2007038361(A2)
申请公布日期
2007.04.05
申请号
WO2006US37135
申请日期
2006.09.22
申请人
E. I. DU PONT DE NEMOURS AND COMPANY;CORCORAN, PATRICK, H.;MA, SHEAU-HWA;HUYBRECHTS, JOZEF, THERESIA