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:
Jul. 15, 2025
Filed:
Oct. 29, 2020
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Nissin Chemical Industry Co., Ltd., Echizen, JP;
Yoshinori Inokuchi, Annaka, JP;
Mio Sakai, Echizen, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
NISSIN CHEMICAL INDUSTRY CO., LTD., Echizen, JP;
Abstract
One of the purposes of the present invention is to provide silicone fine particles which do not aggregate in a thermosetting resin while having softness derived from silicone rubber and have excellent adhesion with the thermosetting resin. The other purpose is to provide a method for preparing the same. The other purpose is to provide a thermosetting resin composition and an encapsulating material, each comprising the fine particles. The present invention provides an epoxy-modified silicone fine particle composed of (A) a spherical silicone rubber fine particle coated with (B) polyorganosilsesquioxane, wherein the spherical silicone rubber fine particle (A) has an average particle diameter of 0.1 to 100 μm and the polyorganosilsesquioxane (B) has an epoxy group-containing organic group.