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:
Aug. 19, 2014
Filed:
Oct. 19, 2009
Peng-fei Fu, Midland, MI (US);
Eric Moyer, Midland, MI (US);
Craig Yeakle, Midland, MI (US);
Dow Corning Corporation, Midland, MI (US);
Abstract
This invention pertains to silsesquioxane resins useful in antireflective coatings wherein the silsesquioxane resin comprises the units (Ph(CH)SiO(OR'))(HSiO(OR′))(MeSiO(OR′))(RSiO(OR′))(RSiO(OR′))where Ph is a phenyl group, Me is a methyl group; R′ is hydrogen atom or a hydrocarbon group having from 1 to 4 carbon atoms; R is selected from a carboxylic acid group, a carboxylic acid forming group, and mixtures thereof; and Ris selected from substituted phenyl groups, ester groups, polyether groups; mercapto groups, sulfur-containing organic functional groups, hydroxyl producing group, aryl sulphonic ester groups, and reactive or curable organic functional groups; and r has a value of 0, 1, 2, 3, or 4; x has a value of 0, 1 or 2; wherein in the resin m has a value of 0 to 0.90; n has a value of 0.05 to 0.99; o has a value of 0 to 0.95; p has a value of 0.01 to 0.5; q has a value of 0 to 0.5; and m+n+o+p+q≈1.