Production of polyvinyl butyral sheet rolls

B - Operations – Transporting – 29 – D

Patent

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18/1000

B29D 7/00 (2006.01) B29C 53/32 (2006.01)

Patent

CA 1139072

06-12-0550 PRODUCTION OF POLYVINYLBUTYRAL SHEET ROLLS ABSTRACT A process comprising winding polyvinylbutyral interlayer sheet at a controlled low tension reduces blocking at the core of the roll and minimizes stretch variations within the roll and storing the roll until use at a temperature below 15°C.

353500

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