Method for detaching pressure-sensitive adhesive film

Details Method for detaching pressure-sensitive adhesive film Method for detaching pressure-sensitive adhesive film

2007-08-09

2011-11-22

Osele, Mark A (Department: 1745)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Delaminating, per se; i.e., separating at bonding face

C156S752000

Reexamination Certificate

active

08062475

ABSTRACT:
To provide a detaching method capable of detaching a first substrate and a second substrate bonded together through a pressure-sensitive adhesive film, while minimizing the physical external load imposed on these substrates. A method for detaching a first substrate and a second substrate bonded together by a pressure-sensitive adhesive film comprising a pressure-sensitive adhesive polymer having dispersed therein a thermally decomposable metal hydroxide or metal salt hydrate filler, the method comprising a step of heating the pressure-sensitive adhesive film to a temperature capable of causing decomposition and dehydration of the metal hydroxide or metal salt hydrate, thereby accelerating the detachment.

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patent: 2005-091761 (2005-04-01), None

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