EPOXY POLYSILOXANE COATING COMPOSITIONS WITH POLYURETHANE-METAL OR ORGANIC BASED CURING SYSTEMS
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United States of America Patent
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Issued Date -
Jan 4, 2024
app pub date -
Dec 2, 2021
filing date -
Dec 3, 2020
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Disclosed herein are epoxy-polysiloxane polymer coating compositions suitable for coating surfaces that provide excellent chemical, corrosion, or weather resistance. The epoxy-polysiloxane polymer coating compositions include polysiloxane and non-aromatic epoxide resins, and a cure system, wherein the combined composition reacts to form a cross-linked epoxy-polysiloxane polymer structure. The cure system can include at least a blend of metal or organic catalyst(s) and alkoxy functional aminosilane(s), and may further include a polyurethane, such as a silane terminated polyurethane. The metal catalyst may be coordinated with, or in close proximity to, the polyurethane, thus providing excellent hardening results at very low metal concentrations.
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