Hydroxycarbamoylalkoxysilane-based poly(ether-urethane) sealants having improved paint adhesion and laminates prepared therefrom
October 31, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3033815 3627722 3632557 Urethane polymers and sealant compositions containing the same Silicon-terminated polyurethane polymer Polymeric organo functional silanes as reactive modifying materials Curable coating vehicle based upon aminoalkyloxy silanes and organic isocyanates Alkoxysilane-terminated, moisture-hardening polyurethanes and their use in adhesives and sealing compositions Plastics which cure in a series of steps having urethane, urea, siloxane and acrylate groups 5118290 InventorsApplicationNo. 741593 filed on 10/31/1996US Classes:524/588, From silicon-containing reactant428/423.1, Of polyamidoester (polyurethane, polyisocyanate, polycarbamate, etc.)524/590, With reactant containing at least one C-OH, (C=O)-OH or -C-O-C- group528/28, Organic Si-free reactant is a nitrogen-containing compound528/44FROM REACTANT HAVING AT LEAST ONE -N=C=X GROUP (WHEREIN X IS A CHALCOGEN ATOM) AS WELL AS PRECURSORS THEREOF, E.G., BLOCKED ISOCYANATE, ETC.ExaminersPrimary: Niland, Patrick D.Attorney, Agent or FirmForeign Patent References
International ClassesC08J 003/00C08K 003/20 C08L 075/00 AbstractThe present invention pertains to moisture curable sealant compositions based on alkoxysilane functional poly(ether-urethane)s prepared from hydroxycarbamoylalkoxysilanes which provide improved paint adhesion even in the absence of polar solvents or polar plasticizers. The present invention also provides coated substrates and laminates formed from such compositions.Other References
Field of SearchWith reactant containing at least one C-OH, (C=O)-OH or -C-O-C- groupFrom silicon-containing reactant Organic Si-free reactant is a nitrogen-containing compound FROM REACTANT HAVING AT LEAST ONE -N=C=X GROUP (WHEREIN X IS A CHALCOGEN ATOM) AS WELL AS PRECURSORS THEREOF, E.G., BLOCKED ISOCYANATE, ETC. Of polyamidoester (polyurethane, polyisocyanate, polycarbamate, etc.) | |
