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. 11, 2019
Filed:
Oct. 19, 2015
Applicant:
Lintec Corporation, Itabashi-ku, JP;
Inventors:
Assignee:
LINTEC CORPORATION, Itabashi-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/20 (2006.01); B32B 27/30 (2006.01); B32B 27/40 (2006.01); B32B 27/18 (2006.01); H01L 21/683 (2006.01); C09J 7/25 (2018.01); B32B 7/04 (2019.01); B32B 25/08 (2006.01); B32B 27/06 (2006.01); B32B 27/08 (2006.01); B32B 27/24 (2006.01); B32B 27/28 (2006.01); B32B 7/05 (2019.01);
U.S. Cl.
CPC ...
B32B 27/20 (2013.01); B32B 7/04 (2013.01); B32B 7/05 (2019.01); B32B 25/08 (2013.01); B32B 27/06 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/24 (2013.01); B32B 27/283 (2013.01); B32B 27/285 (2013.01); B32B 27/30 (2013.01); B32B 27/308 (2013.01); B32B 27/40 (2013.01); C09J 7/25 (2018.01); H01L 21/6836 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2250/44 (2013.01); B32B 2264/102 (2013.01); B32B 2264/105 (2013.01); B32B 2264/12 (2013.01); B32B 2270/00 (2013.01); B32B 2307/21 (2013.01); B32B 2307/50 (2013.01); B32B 2307/54 (2013.01); B32B 2307/546 (2013.01); B32B 2307/732 (2013.01); B32B 2405/00 (2013.01); B32B 2457/14 (2013.01); C09J 2201/606 (2013.01); C09J 2201/622 (2013.01); C09J 2203/326 (2013.01); H01L 2221/6834 (2013.01);
Abstract
The substrate for surface protective sheet of the present invention is a substrate for surface protective sheet including a support film and an antistatic layer provided on one face of the support film, wherein a stress relaxation rate of the substrate for surface protective sheet is 60% or more; the antistatic layer is one formed by curing an antistatic layer-forming composition containing a curing component and a metal filler; and the content of a metal filler is 55 mass % or more relative to the total mass of the curing component and the metal filler, and the curing component includes a urethane acrylate oligomer.