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    • 7. 发明申请
    • HEAT-RECOVERABLE ARTICLE
    • 热恢复文章
    • WO1994017324A1
    • 1994-08-04
    • PCT/US1994000554
    • 1994-01-20
    • RAYCHEM CORPORATION
    • RAYCHEM CORPORATIONPIESLAK, GeorgeWALLACE, Barnie, A., Jr.GREUEL, Walter, J., Jr.
    • F16L58/10
    • F16L58/181B29C61/0616B29C61/0666B29C2061/0683B29C2061/0691F16L58/109
    • A heat-recoverable article (2) with improved impact strength and increased resistance to swelling. The article is composed of a first backing layer (6), a second inner layer (8), and an optional adhesive layer (10), e.g. a hot-melt adhesive or a mastic. In one aspect, the article comprises a first layer (6), a second layer (8), and an adhesive (10) which is capable of swelling the first layer. In another aspect, the article has a thickness of 10x and comprises a first polymeric backing layer (6) which contains a particulate filler, and has a thickness which is at least 0.13 mm and is 1x to 5x, and a second polymeric inner layer (8) which contains substantially no particulate filler, and has a thickness of 5x to 9x. Also disclosed is an assembly in which an article of the invention is in contact with a substrate (4), e.g., a pipe, a pier, or a support element for a structure. Articles of the invention are particularly useful in protecting steel pipes and gas risers from corrosion in areas such as the splash zone (18) in which they are subject to heavy wave action.
    • 具有改善的冲击强度和增加的抗膨胀性的可热回收制品(2)。 该制品由第一背衬层(6),第二内层(8)和可选的粘合层(10)组成, 热熔胶或胶泥。 在一个方面,制品包括能够溶胀第一层的第一层(6),第二层(8)和粘合剂(10)。 在另一方面,制品的厚度为10x,并且包括含有颗粒填料的第一聚合物背衬层(6),并且其厚度至少为0.13mm并且为1x至5x,第二聚合物内层 8),其基本上不含颗粒填料,并且具有5x至9x的厚度。 还公开了一种组件,其中本发明的制品与用于结构的基材(4)例如管,墩或支撑元件接触。 本发明的制品特别可用于保护钢管和气体立管免受其中遭受剧烈波动的溅射区域(18)的区域的腐蚀。