H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 2/02 (2006.01)
Patent
CA 2255554
A battery casing is formed of a flame-retardant thermoplastic composition that includes a blend of a homopolymer, copolymer and ammonium polyphosphate. The ammonium polyphosphate is in an amount to impart flame-retardance to the retardance to the thermoplastic composition. Other components include polyol, intumescent char-forming agent, and melamine, which acts as a blowing agent. Antioxidants, release agents, carbon black, reinforcers and other additives can be included. Alternatively, the battery casing includes a polymer composition with a halogen-containing fire-retardant component and a polypropylene component.
Boîtier de batterie constitué d'une composition thermoplastique ignifugée comportant un mélange d'un homopolymère, d'un copolymère et d'un polyphosphate d'ammonium. Ledit polyphosphate d'ammonium est présent en une quantité telle qu'il confère l'ignifugation à la composition thermoplastique. D'autres constituants sont le polyol, un agent de carbonisation intumescent et la mélanine qui agit comme agent gonflant. Il est possible d'ajouter des antioxydants, des agents antiadhérents, du noir de charbon, des renforçateurs et d'autres additifs. Alternativement, ledit boîtier comporte une composition polymère renfermant un constituant ignifuge contenant de l'halogène et un constituant polypropylène.
Borden Ladner Gervais Llp
Gitto/global Corporation
LandOfFree
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