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. 26, 2019
Filed:
Jun. 22, 2015
Inkron Oy, Espoo, FI;
Jarkko Heikkinen, Espoo, FI;
Juha Rantala, Espoo, FI;
Inkron Oy, Espoo, FI;
Abstract
A siloxane polymer is made by providing a first compound having the chemical formula SiRRwhere a is from 1 to 3, Ris a reactive group, and Ris an alkyl group or an aryl group, and providing a second compound having the chemical formula SiRRRwhere Ris a cross-linking functional group, Ris a reactive group, and Ris an alkyl or aryl group, and where b=1 to 2, and c=1 to (4−b). The first and second compounds are polymerized together to form a siloxane polymer. The siloxane polymer can be then used in a final composition where the siloxane polymer comprises from 5 to 100% by weight, and filler (e.g. microparticles, nanoparticles, nanowires, etc.) comprises from zero to 95% by weight. The siloxane polymer composition is useful in a variety of areas such as an adhesive, e.g. as a die attach adhesive in semiconductor (e.g. LED) packaging applications, encapsulants, optical coatings, protective coatings, and other applications.