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:
Apr. 21, 2026
Filed:
Apr. 12, 2023
Microworks Co., Ltd., Iwol-myeon, KR;
Sungjin Chung, Suwon-si, KR;
Kweon Hyung Han, Suwon-si, KR;
Kwangho Jang, Suwon-si, KR;
Sang Mook Kim, Suwon-si, KR;
MICROWORKS CO., LTD., Iwol-myeon, KR;
Abstract
Disclosed is a paint protection film having a storage modulus measured at a temperature of n ° C. according to ASTM D4065 of En, where n is a number representing a temperature in degrees Celsius, wherein E40/E20 is 0.75 or more and 1.1 or less, wherein the paint protection film has a change index dYI of yellowness according to ASTM E313 before and after a UV irradiation, represented by Equation 1 below, of 0.8 or less, where the UV irradiation is performed for 72 hours at an output of 3 W with a light having wavelength from 280 nm to 360 nm:dYI=|YI−UV_YI| [Equation 1]