US2010252947A1PendingUtilityA1

High processing temperature foaming polymer composition

Assignee: BRIX SUSANNEPriority: Nov 29, 2007Filed: Jun 22, 2010Published: Oct 7, 2010

Est. expiryNov 29, 2027(~1.3 yrs left)· nominal 20-yr term from priority

Inventors:Susanne Brix Friedrich Müller Christian Lankes Alfred Gemmel Olivier Pinto Mikael Abeguile Jerome Alric Thierry Auvray Paul Kroushl

B29C 48/07C08J 9/122C08J 2201/03B29C 48/022C08J 9/06H01B 3/445C08J 2327/12B29K 2027/18

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Claims

Abstract

A foaming composition comprising a melt processible fluoropolymer, and a chemical foaming agent, where the chemical foaming agent is ammonium polyphosphate.

Claims

exact text as granted — not AI-modified

1 . A method for extruding a foaming composition, said method comprising the steps of:
 blending a foaming composition of a melt processible fluoropolymer, and ammonium polyphosphate as a chemical foaming agent above the temperature needed to melt the fluoropolymer and below the temperature needed to decompose the chemical foaming agent; and   extruding said composition above the temperature needed to decompose the chemical foaming agent.

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