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发明申请
US20050035334A1 PTC compositions based on PVDF and their applications for self-regulated heating systems 审中-公开
基于PVDF的PTC组合物及其在自调节加热系统中的应用

PTC compositions based on PVDF and their applications for self-regulated heating systems
摘要：
The present invention relates to a PTC composition comprising, by weight, the total being 100%: A) 40 to 80% of PVDF; B) 0 to 40% (advantageously 10 to 40%) of an acrylic or styrene polymer; C) 0 to 40% of an epoxy resin; D) 0 to 60% of at least one metal oxide; E) 0 to 25% of a carbonaceous conductive filler D+E being equal to at least 10%. To prepare the composition of the invention, the various constituents are blended in such a way that (A) is in the melt state, then the product obtained is extruded, moulded or injection-moulded or else deposited on a substrate. Once the composition has been converted into an article, for example into a sheet or bar, it is provided with at least two electrodes that serve as the power lead-in and return, respectively. The composition may also be placed between two conducting plates that serve as the power lead-in and return, respectively.
摘要（中）：

本发明涉及一种PTC组合物，其按重量计包含100％的总重量：A）40-80％的PVDF; B）0至40％（有利地10至40％）丙烯酸或苯乙烯聚合物; C）0〜40％的环氧树脂; D）0〜60％的至少一种金属氧化物; E）0-25％的碳质导电填料D + E等于至少10％。 为了制备本发明的组合物，各种组分以（A）处于熔融状态的方式共混，然后将所得产物挤出，模制或注塑或沉积在基材上。 一旦组合物已经被转化成物品，例如，被转化成片或条，则它被提供有至少两个用作电力引入和返回的电极。 组合物也可以放置在两个导电板之间，这两个导电板分别作为电源引入和返回。

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