Methods for laminating films for spd light valves and spd...

B - Operations – Transporting – 32 – B

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B32B 37/10 (2006.01)

Patent

CA 2563303

The invention is directed to a method for laminating a suspended particle device (SPD) film which comprises forming a suspended particle device film; positioning the suspended particle device film within an unlaminated stack of components for forming a laminated suspended particle device film, wherein the stack comprises at least one hot melt adhesive sheet or film contacting an outer surface of the suspended particle device film; subjecting the unlaminated stack to at least a partial vacuum, preheating the unlaminated stack of components under the vacuum for a time and at a temperature selected to permit at least partial degassing of the stack and applying a sufficient net pressure to the stack at a sufficient temperature and for a sufficient time to produce a laminated suspended particle device film from the unlaminated stack.

L'invention concerne un procédé servant à stratifier un film pour dispositif à particules en suspension. Selon ce procédé, on forme un film pour dispositif à particules en suspension ; on place ce film à l'intérieur d'un empilement non stratifié d'éléments pour former un film stratifié pour dispositif à particules en suspension, cet empilement comprenant au moins une feuille ou un film d'adhésif thermofusible en contact avec une surface extérieure du film pour dispositif à particules en suspension ; on soumet l'empilement non stratifié à au moins un vide partiel ; on préchauffe sous vide l'empilement non stratifié d'éléments pendant une durée et à une température choisies pour permettre au moins un dégazage partiel de l'empilement ; et on applique à l'empilement, à une température suffisante et pendant une durée suffisante, une pression nette suffisante pour produire, à partir de l'empilement non stratifié, un film stratifié pour dispositif à particules en suspension.

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