G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/44 (2006.01)
Patent
CA 2266991
Water blocking components (31, 35, 51, 55) for blocking the flow of water in fiber optic cables (10, 40, 70) and methods of making the components. Each water blocking component (31, 35, 51, 55) includes a respective plastic substrate (32, 36, 52, 55) that includes a water absorbent entity, for example, a water absorbent layer (60). The water absorbent layer is a mixture of a water absorbent substance and an adhesive substance. The cross sectional profiles of water blocking components (31, 35, 51, 55) permit a distribution of the water absorbent substance, and the adhesive substance stabilizes the position of the water absorbent substance, thereby advantageously establishing the water blocking effectiveness of components (31, 35, 51, 55). Additionally, the bulk of the substrates themselves substantially fill the grooves and thereby effectuate a water blocking function. A method of making water blocking components (31, 35, 51, 55) includes the application of water absorbent layer (60) as a thin surface treatment, i.e., it is not impregnated into the substrates but, rather, it is adhered to the smooth, non-porous surfaces of the substrates. Substrates (32, 36, 52, 55) may be in the form of foamed rods. Figures 1-2.
Gowling Lafleur Henderson Llp
Siecor Operations Llc
LandOfFree
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