Masking member

B - Operations – Transporting – 05 – B

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Details

B05B 15/04 (2006.01) B44D 3/00 (2006.01) C08J 5/00 (2006.01) C08L 101/00 (2006.01)

Patent

CA 2335775

A masking material (11) having improved heat resistance and intact moldability. The masking material (11) is characterized by comprising a polymer alloy comprising at least one engineering plastic selected among methylpentene copolymers (TPX), polysulfones (PSF), polyethersulfones (PES), polyphenylene sulfides (PPS), polyphenylene ethers (PPE) or modifications thereof, polyamide-imides (PAI), polyetherimides (PEI), polyetheretherketones (PEEK), and syndiotactic polystyrene (SPS) obtained through polymerization using a metallocene compound as a catalyst and a thermoplastic resin other than the engineering plastic in a weight ratio of 7/3 to 4/6.

L'invention se rapporte à un matériau de masquage (11) doté d'une résistance améliorée à la chaleur et d'une aptitude intacte au moulage. Ce matériau de masquage (11) se caractérise en ce qu'il comporte un alliage de polymères comprenant au moins une matière plastique industrielle sélectionnée parmi des copolymères de méthylpenthène (TPX), des polysulfones (PSF), des polyéthersulfones (PES), des sulfures de polyphénylène (PPS), des éthers de polyphénylène (PPE) ou des modifications de ces derniers, des polyamide-imides (PAI), des polyétherimides (PEI), des polyétheréthercétones (PEEK) et du polystyrène syndiotactique (SPS) obtenu par polymérisation à l'aide d'un composé métallocène utilisé comme catalyseur et d'une résine thermoplastique autre que la matière plastique industrielle dans un rapport pondéral compris entre 7/3 et 4/6.

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