Nitto-denko Corporation

Kansai Paint Company, Ltd.

Toshitaka Suzuki

Takeshi Igarashi

Yoshikuni Hirano

Yuki Saitou

Tsuyoshi Inoue

Kenichi Shibata

Komaharu Matsui

Shinji Inokuchi

Kenichi Okada

Takeshi Eda

Hiroko Ikenaga

Koji Yamaguchi

Hiroyoshi Onishi

Nao Wakayama

Keiji Hayashi

Masahiko Ando

Mitsuyoshi Shirai

Kenji Sano

Hiroshi Ueda

Yuka Sekiguchi

Ryoko Asai

Osamu Degawa

Masahiro Kondo

Mitsuo Wakimoto

Takumi Yutou

Mitsuru Horada

Masato Shirai

Rie Hayashiuchi

Masakazu Kato

Asuka Endo

Ikko Hanaki

Taiki Kusaka

Yuki Saito

Takuro Kanezaki

A protection sheet is provided for application to a vehicle window plate to protect the window plate. Protection sheet includes a substrate and a PSA layer provided on one surface of substrate. Protection sheet has a 30-minute peel strength (S1) of less than 0.10 N/20 mm and a 48-hour peel strength (S2) of 0.05 N/20 mm or greater when applied to a glass plate by a wet application method where water is provided to the surface of the glass plate and protection sheet is press-bonded to the glass plate while pushing the water present between the glass plate surface and PSA layer to the outside of the bonding area.

Protection sheet for vehicle window plate

The present invention provides a paint film protection sheet comprising a support substrate and a PSA layer placed on the support substrate. The PSA constituting the PSA layer comprises a non-crosslinked rubber-based polymer as a base polymer, a tackifier resin (T) having a softening point of 120&#xb0; C. or above, and a tackifier resin (T) having a softening point below 120&#xb0; C. The mass ratio (T/T) of the tackifier resin (T) content relative to the tackifier resin (T) content has a value of 1.0 or larger and 30 or less.

Paint film protection sheet

A paint film-protecting sheet, which is unwound from a roll for use, and in which occurrence of adhesive transfer at edges thereof is effectively prevented, and a method of manufacturing same are provided. The paint film-protecting sheet is in the form of a roll obtained by winding in a lengthwise direction a pressure-sensitive adhesive sheet formed of a substrate in continuous sheet form and a pressure-sensitive adhesive layer disposed on the substrate. The substrate comprises a resin component made primarily of polyethylene resin or polypropylene resin. The paint film-protecting sheet, after being unwound from the roll, has a percent shrinkage, in the lengthwise direction, of not greater than 1.2% when heated at 80&#xb0; C. for 1 hour.

Paint film-protecting sheet and method of manufacture

A film for a pressure-sensitive adhesive tape is a film for a pressure-sensitive adhesive tape, including a non-pressure-sensitive adhesive layer on one surface of a plastic film, where the non-pressure-sensitive adhesive layer includes a mixed layer of a silicone and a (meth)acrylic polymer; and the (meth)acrylic polymer has a calculated Tg of 10&#xb0; C. or more.

Film for pressure-sensitive adhesive tape and pressure-sensitive adhesive tape

A paint film-protecting sheet () is provided which effectively prevents adhesive transfer to the paint film. The paint film-protecting sheet () has a pressure-sensitive adhesive layer which is comprised of a non-crosslinking pressure-sensitive adhesive () adjacent a polyolefin-based resin film serving as a supporting substrate (). At least a surface portion () of the supporting substrate that adjoins the pressure-sensitive adhesive layer satisfies the following conditions: (1) it has an indentation modulus at 25&#xb0; C. (Er) of from 200 MPa to 1,100 MPa and (2) it has an indentation modulus at &#x2212;5&#xb0; C. (Er) of from 400 MPa to 2,400 MPa.

Paint film-protecting sheet

A paint film-protecting sheet () that effectively prevents adhesive transfer to the paint film is provided. The paint film-protecting sheet () includes a pressure-sensitive adhesive (PSA) layer (), which is comprised of a non-crosslinking PSA, disposed on a polyolefin-based resin film serving as a supporting substrate (). At least a surface portion () of the supporting substrate which adjoins the PSA layer is formed of a resin material that satisfies both of the following conditions: (1) it contains W wt % of a LLDPE having a density d of 0.925 g/cmor less, wherein W is greater than or equal to 20; and (2) it has a LLDPE content index &#x3b1; of 400 or more, the LLDPE content index &#x3b1; being defined as (0.935&#x2212;d)&#xd7;W&#xd7;1000.

A paint film-protective sheet comprising a supporting substrate having formed thereon a rubber-based pressure-sensitive adhesive layer containing a fatty acid glycerol ester and an antifungal agent.

Paint-film protective sheet

A paint film-protective sheet comprising a supporting substrate having formed thereon a rubber-based pressure-sensitive layer comprising a rubber-based polymer having a low polarity and which does not contain unsaturated bonds or contains a small amount of unsaturated bonds, and a high-polar additive. The paint film-protective sheet can adhere even to a paint film which is liable to cause a poor adhesion by bleeding, etc., without need of applying a cleaning treatment, can maintain the good adhered state over a long period of time, and can be easily peeled cleanly even after adhering for a long period of time.

Paint film-protective sheet

Growing community of inventors

Ibaraki, Japan

Toshitaka Suzuki