The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2014
Filed:
Jun. 29, 2011
Kamesh R. Vyakaranam, Pearland, TX (US);
Ling Zhang, Missouri City, TX (US);
William A. Koonce, Pearland, TX (US);
Juan Carlos Medina, Lake Jackson, TX (US);
Ganesh Kailasam, Pearland, TX (US);
Rajat Duggal, Pearland, TX (US);
Nathan Wilmot, Missouri City, TX (US);
Kamesh R. Vyakaranam, Pearland, TX (US);
Ling Zhang, Missouri City, TX (US);
William A. Koonce, Pearland, TX (US);
Juan Carlos Medina, Lake Jackson, TX (US);
Ganesh Kailasam, Pearland, TX (US);
Rajat Duggal, Pearland, TX (US);
Nathan Wilmot, Missouri City, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Embodiments of the invention provide for methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule. The method comprises providing a polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, adding to the polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction to form a composition comprising hydrosilylated polyoxyalkylene polymers, reacting the hydrosilylated polyoxyalkylene polymers with at least one isocyanate in the presence of a first tin-free catalyst to form an isocyanate reacted hydrosilylated polymer, and optionally reacting the isocyanate reacted hydrosilylated polymer with a polyol having a nominal functionality of at least 2 to form a polyol reacted crosslinkable silane-terminated polymer.