Transparent pvdf with service temperature over the melting point
AssigneeArkema Inc.
InventorsAzaz A. VAHORA, Florence MEHLMANN, James Joseph HENRY, Sara REYNAUD
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Abstract
This invention provides a composition, an article comprising the composition and a method of making the article. The composition comprises fluorinated polymer, quaternary ammonium salt and crosslink promoter. The article has high transparency and a Maximum Continuous Service Temperature above the melting point of the fluorinated polymer.
Claims18
A composition comprising PVDF polymer, quaternary ammonium salt and crosslink promotor,
- wherein the PVDF polymer is either a homopolymer or a homogeneous copolymer,
- wherein the amount of quaternary ammonium salt is at least 0.1 to less than 5 wt %, based on weight of the PVDF polymer and the amount of crosslink promotor is between 0.01 wt %, to less than 5 wt %, based on weight of the PVDF polymer.
An article comprising a crosslinked PVDF homopolymer or a crosslinked homogeneous PVDF copolymer, quaternary ammonium salt and crosslink promotor wherein said article has a maximum continuous service temperature of at least 150 C, and has transparency as measured by haze (ASTM D1003) of less than 40% for 1 mm thick article.
Dependencies are inferred from the claim text.