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. 14, 2017
Filed:
Mar. 29, 2013
Applicant:
Sekisui Plastics Co., Ltd., Osaka-shi, JP;
Inventors:
Assignee:
Sekisui Plastics Co., Ltd., Osaka-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/28 (2006.01); A61K 8/02 (2006.01); A61Q 1/02 (2006.01); A61Q 1/12 (2006.01); C08J 3/12 (2006.01); A61K 8/81 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); C08J 9/26 (2006.01); G02B 1/111 (2015.01); C08F 222/10 (2006.01); C09D 133/10 (2006.01);
U.S. Cl.
CPC ...
A61K 8/0279 (2013.01); A61K 8/8152 (2013.01); A61Q 1/02 (2013.01); A61Q 1/12 (2013.01); B01J 20/28061 (2013.01); B01J 20/3064 (2013.01); C08F 222/1006 (2013.01); C08J 3/12 (2013.01); C08J 9/26 (2013.01); C08J 9/28 (2013.01); C08J 9/286 (2013.01); G02B 1/111 (2013.01); A61K 2800/654 (2013.01); C08J 2333/10 (2013.01); C08J 2333/12 (2013.01); C08J 2333/14 (2013.01); C08L 2312/00 (2013.01); C09D 133/10 (2013.01); Y10T 428/249953 (2015.04);
Abstract
Disclosed are porous resin particles which contain a polymer of a monomer mixture containing, as monomers, at least a monofunctional (meth)acrylic acid ester and a crosslinking monomer. The monofunctional (meth)acrylic acid ester accounts for 1 wt % to 50 wt % of the monomer mixture, and the crosslinking monomer accounts for 50 wt % to 99 wt % of the monomer mixture. The porous resin particles have a specific surface area of 190 m/g to 300 m/g and a bulk specific gravity of 0.25 g/mL to 0.45 g/mL.