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:
Dec. 08, 2020
Filed:
Dec. 04, 2018
Rohm and Haas Electronic Materials Llc, Marlborough, MA (US);
Michael Mulzer, Marlborough, MA (US);
Yusuke Matsuda, Glen Mills, PA (US);
Rohm and Haas Electronic Materials LLC, Marlborough, MA (US);
Abstract
A curable composition comprising an epoxy-siloxane oligomer comprising as polymerized units one or more difunctional silane monomers of formula (1) and one or more trifunctional silane monomers of formula (2) in a mole ratio of 95:5 to 10:30Si(R)(R)(Y)  (1)SiR(Y)  (2)wherein R, R, and Rare independently chosen from a C-aliphatic group comprising an oxirane ring fused to an alicyclic ring, C-alkyl, C-aryl group, and a C-aliphatic group having one or more heteroatoms; each Yand Yis independently chosen from halogen, C-alkoxy, and —O—C-acyl group; wherein at least one of R, R, and Ris a C-aliphatic group comprising an oxirane ring fused to an alicyclic ring; (b) organic particles having an average diameter of 50 to 250 nm; (c) a reactive carrier having one or more epoxy moieties or oxetane moieties; (d) a curing agent; and (e) one or more organic solvents, and methods of forming cured coatings using such compositions are described.