Heat sealable sheet materials

B - Operations – Transporting – 32 – B

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B32B 27/08 (2006.01) C08J 5/12 (2006.01) C08J 7/04 (2006.01) C09J 123/28 (2006.01)

Patent

CA 1051294

HEAT SEALABLE SHEET MATERIALS Abstract of the Disclosure A process for the production of a heat sealable temperature-resistant sheet material wherein a solution of a partially fluorinated high-molecular weight aliphatic hydro- carbon with a molecular weight of 1,000 to 500,000 which is solid at room temperature in a solvent mixture of a) 10 to 60 volume percent of at least one chlorinated aliphatic hydrocarbon containing 1 to 6 carbon atoms and having a boiling point of 30 to 150°C and b) 40 to 90 volume percent of at least one alkyl ester of a polybasic aromatic carboxylic acid or at least one high-boiling ketone is applied to a temperature-resistant plastics sheet and the solvent is removed.

199808

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