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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.:

US 11332572 B1

PDFFull Text
Date of Patent:
May. 17, 2022

Filed:

Mar. 20, 2018

Spherical polyester resin particles and method for producing same

Applicant:

Sekisui Kasei Co., Ltd., Osaka, JP;

Inventor:

Ryosuke Harada, Osaka, JP;

Assignee:

SEKISUI KASEI CO., LTD., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Jeffrey D Washville

Int. Cl.
CPC ...
C08G 63/16 (2006.01); A61K 8/02 (2006.01); A61K 8/04 (2006.01); A61K 8/85 (2006.01); A61Q 19/00 (2006.01); C08J 3/12 (2006.01); C08L 67/02 (2006.01); C09D 167/02 (2006.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
C08G 63/16 (2013.01); A61K 8/025 (2013.01); A61K 8/04 (2013.01); A61K 8/85 (2013.01); A61Q 19/00 (2013.01); C08J 3/12 (2013.01); C08L 67/02 (2013.01); C09D 167/02 (2013.01); G02B 1/04 (2013.01); A61K 2800/10 (2013.01); A61K 2800/262 (2013.01); A61K 2800/654 (2013.01); C08J 2367/02 (2013.01); C08L 2201/10 (2013.01); C08L 2201/56 (2013.01); C08L 2203/16 (2013.01); C08L 2205/18 (2013.01);
Abstract

Spherical polyester-based resin particles characterized in that the spherical polyester-based resin particles contain a polyester-based resin and have a crystallinity of 20% or less and an average circularity of 0.96 or more. The spherical polyester-based resin particles according to the present invention can provide suitable resin particles as compounding agents for cosmetics such as foundation, antiperspirants, and skin scrubs; various agents such as matte coating agents for paints, rheology modifying agents, antiblocking agents, slipperiness-imparting agents, light diffusion agents, electroconductive agents, and diagnostic testing agents for medical use; and additives to molded articles such as automobile materials and construction materials.

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