Use of phosphorus compounds as stripping agents for polyamide-imide films
    7.
    发明授权
    Use of phosphorus compounds as stripping agents for polyamide-imide films 失效
    使用磷化合物作为剥离剂用于聚酰胺膜

    公开(公告)号:US3691136A

    公开(公告)日:1972-09-12

    申请号:US3691136D

    申请日:1971-03-29

    CPC classification number: C08G73/14

    Abstract: Polyamide-imide compositions useful for film preparation are disclosed. These compositions comprise the polyamide-imide polymer, a solvent system for said polymer, and one of the following stripping agents: phosphoric acid, phosphites, esters of phosphoric acid and strong organic acids.

    Abstract translation: 公开了可用于膜制备的聚酰胺 - 酰亚胺组合物。 这些组合物包括聚酰胺 - 酰亚胺聚合物,所述聚合物的溶剂体系和以下汽提剂之一:磷酸,亚磷酸酯,磷酸和强有机酸的酯。

    A{14 i polymer laminates prepared by filament winding
    8.
    发明授权
    A{14 i polymer laminates prepared by filament winding 失效
    A {14 I聚合物层压制品由FILAMENT WINDING制备

    公开(公告)号:US3660193A

    公开(公告)日:1972-05-02

    申请号:US3660193D

    申请日:1971-03-05

    CPC classification number: C08J5/043 C08J2379/08

    Abstract: A continuous process for preparing a heat resistant polymer laminate, said process comprising: (1) coating glass fibers with a solution comprising an uncured aromatic polytrimellitamide polymer, having imide forming groups, dissolved in a suitable solvent, (2) flashing off a limited amount of solvent at a temperature below the curing temperature of said uncured aromatic polytrimellitamide polymer, leaving said polymer uniformly deposited on the surface of said fibers, (3) winding said fibers on a mandrel, and (4) curing the polymer leaving essentially no unconverted imide forming groups, thus preparing said polymer laminates.

    Abstract translation: 一种用于制备耐热聚合物层压体的连续方法,所述方法包括:(1)用包含未固化的芳族聚三聚甲酰胺聚合物的溶液涂覆玻璃纤维,所述溶液具有酰亚胺形成基团,溶解在合适的溶剂中,(2)闪烁有限的量 的溶剂在低于所述未固化的芳族聚三聚甲酰胺聚合物的固化温度的温度下,使所述聚合物均匀地沉积在所述纤维的表面上,(3)将所述纤维缠绕在心轴上,和(4)固化聚合物,基本上没有未转化的酰亚胺 形成基团,从而制备所述聚合物层压体。

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