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    • 2. 发明授权
    • Breather material and method of coating fabric with silicone rubber
    • 用硅橡胶​​涂布织物的通气材料和方法
    • US4548859A
    • 1985-10-22
    • US660375
    • 1984-10-12
    • William T. KlineRobert F. Mittelstadt
    • William T. KlineRobert F. Mittelstadt
    • B29C33/68B29C37/00B29C43/36D06N7/00B32B7/00
    • B29C37/006B29C43/3642B29D99/0003D06N3/0043D06N3/10D06N3/128B29C33/68B29C70/44D06N2209/123D06N2209/1664D06N2211/267D06N2213/04Y10T428/31663Y10T442/45
    • In vacuum bagging and similar operations involving composite materials, it is necessary to provide both a release layer that directly contacts the composite material and will not adhere to such material, and passages for removing entrapped air. A problem with known release layers is that they are not sufficiently stretchable to provide uniform contact with complex or sharply bending surface configurations. The invention provides a breather/release material (6). Material (6) includes a flexible, stretchable foraminous fabric (10) that has a ribbed major surface (16). A foraminous coating (20) of silicone rubber release compound is formed on fabric (10) by a shrink drying process. Coating (20) conforms to the ribbed configuration of surface (16) and has holes (24) generally coinciding with holes (12) in fabric (10). Ribbed surface (16) may be bonded to an impervious layer (4) with an adhesive (8). Passageways (26) formed by ribs (14) of surface (16) and holes (12, 24) are kept open by limiting the amount of adhesive ( 8) used.
    • 在真空包装和涉及复合材料的类似操作中,需要提供与复合材料直接接触并且不会粘附到这种材料上的剥离层,以及用于除去夹带的空气的通道。 已知的释放层的问题在于它们不能充分拉伸以提供与复杂或急剧弯曲表面构型的均匀接触。 本发明提供一种呼吸/释放材料(6)。 材料(6)包括具有肋状主表面(16)的柔性可拉伸的多孔织物(10)。 通过收缩干燥工艺在织物(10)上形成硅橡胶剥离化合物的多孔涂层(20)。 涂层(20)符合表面(16)的肋状结构,并且具有通常与织物(10)中的孔(12)重合的孔(24)。 带肋表面(16)可以用粘合剂(8)粘合到不透水层(4)上。 通过限制所使用的粘合剂(8)的量来保持由表面(16)的肋(14)和孔(12,24)形成的通道(26)。