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    • 2. 发明授权
    • Self-extinguishing blanket enclosed with plastic films
    • 自动灭菌包装用塑料薄膜
    • US5108821A
    • 1992-04-28
    • US477269
    • 1990-02-07
    • Michael J. DooleyEugene F. LopezRobert T. Zajdel
    • Michael J. DooleyEugene F. LopezRobert T. Zajdel
    • B32B17/02B32B17/10B32B27/04B64C1/00B64C1/38F16L59/02
    • B64C1/38B32B17/10Y10S428/902Y10S428/91Y10S428/92Y10S428/921Y10T428/237Y10T428/239Y10T428/24091Y10T428/24099Y10T428/24124Y10T428/24132Y10T428/24826Y10T428/24843Y10T428/24851Y10T428/24926Y10T428/31616Y10T428/31645Y10T442/674
    • A self-extinguishing blanket comprises an insulating layer of glass fiber strands which include air spaces within the layer. Each surface of the layer has a bi-directional strand reinforced plastic film which extends continuously along the surface for keeping moisture out of the layer. Each plastic film is attached to the associated surface of the insulation layer by non-contiguous, longitudinally and laterally spaced apart areas of a thermoplastic adhesive. The adhesive areas provide attachment between the strand reinforcement and the layer of glass fiber strands. Each area of adhesive attachment provides sufficient retention to prevent shifting of the film during the sewing together of peripheral edge portions of the sandwiched plastic films and inner insulation layer as required to produce a selected, peripheral configuration of a blanket package. Each area of adhesive attachment is however small enough to permit ready detachment of the strand reinforcement and associated film from the layer of glass fiber strands upon exposure to the heat of a flame. Each plastic film has a composition and embodies a stress condition which enables a portion of the plastic film, when subjected to a direct flame or to the heat developed by an adjacent flame, to soften, to pull apart, and to shrink and curl back and to continue to curl back sufficiently far so as to prevent heating of that portion of the plastic film to the ignition temperature. This blanket construction leaves only the non-flammable layer of glass fiber strands exposed to the heat of the flame, and the shrinking and curl back of the plastic film prevent both ignition of the plastic film and propagation of the flame through the plastic film.
    • 自熄灭的毯子包括玻璃纤维束的绝缘层,其包括层内的空气空间。 层的每个表面具有双向股线加强塑料膜,其沿着表面连续延伸以将水分保持在该层之外。 每个塑料膜通过热塑性粘合剂的不连续,纵向和横向间隔的区域连接到绝缘层的相关表面。 粘合剂区域提供在股线加强件和玻璃纤维束层之间的附接。 粘合剂附着的每个区域提供足够的保持以防止在夹持塑料膜和内绝缘层的周边边缘部分的缝合期间膜的移动,以产生毯子包装的选定的周边构造。 然而,粘合剂附着的每个区域足够小,以允许在暴露于火焰的热量时,将钢丝束加强件和相关薄膜从玻璃纤维丝束层准备好分离。 每个塑料薄膜都具有组成并且体现了一种应力状态,当受到直接火焰或相邻火焰展开的热量时,塑料薄膜的一部分能够软化,拉开和收缩并卷曲, 继续卷曲得足够远,以防止塑料薄膜的那部分加热到点火温度。 这种毯子结构仅留下暴露于火焰热的玻璃纤维束的不可燃层,并且塑料膜的收缩和卷曲防止塑料膜的点燃和火焰通过塑料膜的传播。