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:
Jun. 12, 2018
Filed:
Aug. 02, 2016
Hyundai Motor Company, Seoul, KR;
Jinmyung Frictech Co., Ltd., Incheon, KR;
Yoon Cheol Kim, Gyeonggi-do, KR;
Seong Jin Kim, Gyeonggi-Do, KR;
Eun Pa Cho, Gyeonggi-Do, KR;
Young Taek Oh, Seoul, KR;
Sung Jin Hong, Incheon, KR;
Hyundai Motor Company, Seoul, KR;
Jinmyung Frictech Co., Ltd., Incheon, KR;
Abstract
Disclosed herein is a wet paper friction material for vehicles. The wet paper friction material comprises: a matrix containing a hardwood pulp in an amount of about 40 to 50% by weight; a spherical silica in an amount of about 16 to 21% by weight; a friction modifier in an amount of about 5% by weight or less but greater than 0% by weight; and a filler constituting the remaining balance of the wet paper friction material, and all the % by weights are based on the total weight of the wet paper friction material.