IP Library Granted Patent US 6,844,112
Granted Patent B2
US 6,844,112 · App. 09/311,753 · Granted Jan 18, 2005

Sheet for protecting paint films of automobiles

Assignees: Nitto Denko Corporation; Kansai Paint Co., Ltd.
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Quick Facts
Patent No.
US 6,844,112
App. No.
09/311,753
Granted
Jan 18, 2005
Kind
B2
Abstract

Sheets for protecting paint films of automobiles which can adhere with no wrinkle to paint films of automobiles and cover the same, even in curved surface portions, at a high reliability while achieving excellent protection function to colliding matters, etc. (i.e., the inherent function of protecting sheets) and being easily peeled and removed after completion of the aimed protection, thus preventing the permeation of rainwater, etc. and protecting the paint films of automobiles from being damaged by denaturation, etc. Such a sheet for protecting paint films of automobiles comprises a support ( 1 ) comprising a polymer film ( 12 ) having a nonwoven fabric ( 11 ) laminated on one or both surfaces thereof, and a pressure-sensitive adhesive layer ( 2 ) formed on one surface of the polymer film, wherein the non-woven fabric has a basic weight of 5 to 100 g/m 2 .

Claims (5)

1. A method for protecting paint films of automobiles, which comprises

providing a protective sheet comprising a support comprising a polymer film laminated on one or both surfaces of a non-woven fabric, and a pressure-sensitive adhesive layer formed on one surface of said polymer film opposed to the polymer film surface adhered to the non-woven fabric, wherein said non-woven fabric has a basis weight of 5 to 100 g/m 2 and said polymer film comprises a thermoplastic polymer, and

applying said protective sheet to a paint film of an automobile,

wherein when applied to curved surfaces, the protective sheet has substantially no wrinkles, prevents permeation of water, and is capable of protecting said paint film from colliding matter.

2. The method for protecting paint films of automobiles as claimed in claim 1 , wherein said polymer film has a thickness of 5 to 40 μm.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 14, 1999
From: INOUE, TSUYOSHI; HAYASHI, KEIJI; SANO, KENJI; WAKABAYASHI, AKIRA; SHIBATA, KENICHI; SUGIMOTO, SHUUJI; MATSUI, KOMAHARU; EDA, TAKESHI; UEDA, HIROSHI
To: NITTO DENKO CORPORATION; KANSAI PAINT CO., LTD.
Reel/Frame 009973/0056 →
Priority Claims (2)
JP 10-155216 · May 19, 1998 · national
JP 10-276526 · Sep 10, 1998 · national
Continuity (1)
Related Publication 20030190463A1 · Oct 9, 2003