公开(公告)号：US11859102B2

公开(公告)日：2024-01-02

申请号：US17192615

申请日：2021-03-04

申请人： ISG Isolierchemie GmbH & Co. Kunststoff KG

发明人： Oleg Gryshchuk

IPC分类号： C09D5/02 ,  C09D7/63 ,  C09D5/00 ,  C09D5/08 ,  C09D109/00 ,  C09D111/00 ,  C09D123/22 ,  C09D127/10 ,  C09D193/00

CPC分类号： C09D5/022 ,  C09D5/002 ,  C09D5/08 ,  C09D7/63 ,  C09D109/00 ,  C09D111/00 ,  C09D123/22 ,  C09D127/10 ,  C09D193/00

摘要： A solvent-free undercoat composition for corrosion control at welds and other repair sites on plastic-sheathed steel pipes with and without cathodic protection, including a component K1: a water-based rubber dispersion for formation of a barrier layer for isolating the metallic repair site from oxygen, water vapor and water penetrating from externally; a component K2: a water-based resin dispersion for adhesion on the metallic surface of the repair site and on the nonpolar surfaces of the plastic sheathing; a component K3: an aqueous emulsion of prehydrolyzed organofunctional silanes for accelerating the drying, for improving the adhesion to the metallic surface, particularly at elevated temperatures, and for increasing the resistance to cathodic disbondment.

公开(公告)号：US20210189148A1

公开(公告)日：2021-06-24

申请号：US17192615

申请日：2021-03-04

申请人： ISG Isolierchemie GmbH & Co. Kunststoff KG

发明人： Oleg GRYSHCHUK

IPC分类号： C09D5/02 ,  C09D5/00 ,  C09D5/08 ,  C09D7/63 ,  C09D193/00 ,  C09D123/22 ,  C09D127/10 ,  C09D109/00 ,  C09D111/00

摘要： A solvent-free undercoat composition for corrosion control at welds and other repair sites on plastic-sheathed steel pipes with and without cathodic protection, including a component K1: a water-based rubber dispersion for formation of a barrier layer for isolating the metallic repair site from oxygen, water vapor and water penetrating from externally; a component K2: a water-based resin dispersion for adhesion on the metallic surface of the repair site and on the nonpolar surfaces of the plastic sheathing; a component K3: an aqueous emulsion of prehydrolyzed organofunctional silanes for accelerating the drying, for improving the adhesion to the metallic surface, particularly at elevated temperatures, and for increasing the resistance to cathodic disbondment.