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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 11732161 B1

PDFFull Text
Date of Patent:
Aug. 22, 2023

Filed:

Dec. 13, 2019

Masking film for protecting sensitive substrates

Applicant:

Tredegar Surface Protection, Llc, Richmond, VA (US);

Inventors:

Gregory K. Jones, Richmond, VA (US);

Bankim Bhupendra Desai, Chesterfield, VA (US);

Carl Douglas Ray, Chesterfield, VA (US);

Sukwoo Park, Richmond, VA (US);

Kevin A. Brady, Cary, IL (US);

Assignee:

TREDEGAR SURFACE PROTECTION, LLC, N. Chesterfiel, VA (US);

Attorney:

Karceski IP Law, PLLC

Primary Examiner:

Alicia Chevalier

Assistant Examiner:

Elaine M Vazquez

Int. Cl.
CPC ...
C09J 7/40 (2018.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); C09J 7/38 (2018.01); C09J 7/24 (2018.01); C09J 7/20 (2018.01); B32B 7/06 (2019.01);
U.S. Cl.
CPC ...
C09J 7/401 (2018.01); B32B 7/06 (2013.01); B32B 27/08 (2013.01); B32B 27/302 (2013.01); B32B 27/32 (2013.01); C09J 7/201 (2018.01); C09J 7/243 (2018.01); C09J 7/383 (2018.01); C09J 7/387 (2018.01); B32B 2250/246 (2013.01); B32B 2405/00 (2013.01); C09J 2203/31 (2013.01); C09J 2301/414 (2020.08); C09J 2423/04 (2013.01); C09J 2423/045 (2013.01); C09J 2423/046 (2013.01); C09J 2453/00 (2013.01);
Abstract

A masking film includes an adhesion layer that includes a blend of hydrogenated styrene block copolymer and low density polyethylene. The adhesion layer has an outer adhesion surface configured to contact a substrate. The outer adhesion surface has an average surface roughness Ra of between 100 nm and 350 nm, and an average spacing between peaks Sm of between 20 μm and 150 μm. The masking film also includes a release layer on a side of the adhesion layer opposite the outer adhesion surface.

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