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1.发明申请公开(公告)号：US20200248007A1
公开(公告)日：2020-08-06
申请号：US16776927
申请日：2020-01-30
申请人： Mark W Perpall , Irina Belov
发明人： Mark W Perpall , Irina Belov
IPC分类号： C09D5/10 , C09D5/08 , C09D7/62 , C09D7/40 , C09D175/06
摘要： Polyurethane-based coatings which exhibit superior erosion and heat resistance combined with antifouling and chemical resistance that are useful for protection of metal components are provided. The coatings are characterized by enhanced particle erosion resistance and enhanced heat resistance and are derived from specific multicomponent slurry compositions.
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2.发明公开公开(公告)号：US20230340276A1
公开(公告)日：2023-10-26
申请号：US17517930
申请日：2021-11-03
摘要： Hexavalent chromium-free slurry formulations which are suitable in the production of inorganic overlay coating systems are described. The formulations provide superior hot corrosion and high-temperature oxidation protection for superalloy substrates. A basecoat slurry and topcoat slurry are provided. The basecoat slurry includes an aluminum phosphate based aqueous solution having a molar ratio of Al:P higher than about 1:3 with the incorporation of pigments of either metallic particles, or metal oxide particles, or both in combination. The topcoat slurry includes an aluminum phosphate based aqueous solution having a molar ratio of Al:P higher than about 1:3. An inorganic overlay coating formed on substrate made from the slurry formulation of present invention for hot corrosion protection on superalloy substrate against hot corrosion. Furthermore, a multilayer coating comprises a metallic bond coat and an inorganic overlay coating formed on superalloy substrate to further enhance high-temperature oxidation and hot corrosion protection.
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3.发明公开公开(公告)号：US20240067833A1
公开(公告)日：2024-02-29
申请号：US18456860
申请日：2023-08-28
申请人： Zhihong Tang , Daryl G. Copeland , Mark W. Perpall
发明人： Zhihong Tang , Daryl G. Copeland , Mark W. Perpall
摘要： Novel multilayer aqueous slurries and coatings for hot corrosion protection of substrates are provided that exhibit improved resistance to type II hot corrosion while also being hexavalent chromium free. The compositions represent a notable departure and performance improvement from conventional coating systems utilized for hot corrosion protection.
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4.发明授权公开(公告)号：US11827808B2
公开(公告)日：2023-11-28
申请号：US16776927
申请日：2020-01-30
申请人： Mark W Perpall , Irina Belov
发明人： Mark W Perpall , Irina Belov
IPC分类号： C09D5/10 , C09D5/08 , C09D7/62 , C09D7/40 , C09D175/06 , C08G18/44 , C23F11/173 , C08G18/73
CPC分类号： C09D5/103 , C09D5/084 , C09D7/62 , C09D7/66 , C09D7/70 , C09D175/06 , C08G18/44 , C08G18/73 , C23F11/173
摘要： Polyurethane-based coatings which exhibit superior erosion and heat resistance combined with antifouling and chemical resistance that are useful for protection of metal components are provided. The coatings are characterized by enhanced particle erosion resistance and enhanced heat resistance and are derived from specific multicomponent slurry compositions.
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