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:
Feb. 28, 2017
Filed:
Feb. 25, 2011
Kang-wook Lee, Yorktown Heights, NY (US);
Jae-woong Nah, New York, NY (US);
Nathalie Normand, Bromont, CA;
Valerie Oberson, St-Alphonse de Granby, CA;
Kang-Wook Lee, Yorktown Heights, NY (US);
Jae-Woong Nah, New York, NY (US);
Nathalie Normand, Bromont, CA;
Valerie Oberson, St-Alphonse de Granby, CA;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention is directed to flux compositions. One composition comprises an activator, a medium-viscosity solvent being a polymer, and a high-viscosity solvent being a copolymer containing first monomers and second monomers. Another composition comprises an activator, and a high-viscosity solvent comprising a copolymer containing first monomers and second monomers. Another composition comprises an activator of 6-12 percent by weight of glutaric acid, pimelic acid, tartaric acid, or mixtures thereof, and a medium-viscosity solvent of 88-94 percent by weight comprising a polymer with hydroxyl end groups. Another composition comprises an activator in a liquid state comprising poly(ethylene glycol)-diacid, and a medium-viscosity solvent comprising a polymer with hydroxyl end groups.