Pressure sensitive adhesive sheet for automobile marking

C - Chemistry – Metallurgy – 09 – J

Patent

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C09J 7/02 (2006.01)

Patent

CA 2641250

Pressure sensitive adhesive sheet (1) for automobile marking, comprising base material (11) and pressure sensitive adhesive layer (12), wherein the base material (11) has a storage elastic modulus of 7.0~101 MPa or greater at 60~ to 80~C, preferably a storage elastic modulus of 1.0~102 to 1.0~103 MPa at 5~ to 10~C. Accordingly, there can be obtained a pressure sensitive adhesive sheet for automobile marking that without the need of restriction to pressure sensitive adhesive composition or primer applied to adherend, can prevent swelling even in the use at high temperatures, such as about 60~ to 80~C.

La présente invention concerne une feuille adhésive sensible à la pression (1), destinée au marquage d'une automobile, qui comprend un matériau de base (11) et une couche adhésive sensible à la pression (12), le matériau de base (11) possédant un module élastique de stockage supérieur ou égal à 7,0~101 MPa à une température comprise entre 60° et 80°C, idéalement un module élastique de stockage compris entre 1,0~102 et 1,0~103 MPa à une température comprise entre 5° et 10°C. On obtient ainsi une feuille adhésive sensible à la pression destinée au marquage d'une automobile qui ne gonfle pas lorsqu'elle est utilisée à des températures élevées, comprises par exemple entre environ 60° et 80°C, et ce, sans poser de restriction sur la composition adhésive sensible à la pression ou sur un primaire appliqué sur la partie adhérée.

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