Rough-surfaced interlayer

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 17/10 (2006.01) C03C 27/12 (2006.01)

Patent

CA 2179915

A thermoplastic interlayer, such as of polyvinyl butyral, has a regular pattern of deairing channels formed in each side which are angularly arranged with respect to each other wherein, to avoid moire, the angle of intersection is at least 25 degrees, preferably 90 degrees.

Couche thermoplastique intermédiaire p. ex. en butyrate de polyvinyle présentant sur chacun de ses côtés un motif régulier de canaux d'élimination de l'air faisant entre eux un angle d'au moins 25~, et de préférence de 90~, pour éviter l'effet de moirage.

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