B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
B41M 5/00 (2006.01) B41M 5/52 (2006.01) B41M 7/00 (2006.01) C08J 7/04 (2006.01) C09D 133/14 (2006.01) C09D 171/02 (2006.01)
Patent
CA 2307556
An article comprises: (a) a substrate having at least one surface; (b) an interior water-absorptive coating on the surface wherein the interior water- absorptive coating comprises hydrophilic organic polymer which is substantially free from crosslinks derived from ethylenic unsaturation or which contains few crosslinks derived from ethylenic unsaturation; and (c) an exterior water-absorptive coating on the interior water-absorptive coating wherein the exterior water-absorptive coating comprises hydrophilic organic polymer which contains numerous crosslinks derived from ethylenic unsaturation; wherein: (d) the interior coating, the exterior coating, or each of the interior coating and the exterior coating further comprises discrete particles having a number average particle size in the range of from 1 to 500 nanometers.
On décrit un article qui comprend a) un substrat présentant au moins une surface; b) un revêtement intérieur imbibant disposé sur ladite surface, ledit revêtement interne comprenant un polymère organique hydrophile sensiblement dépourvu de réticulations provenant d'une insaturation éthylénique, ou contenant peu de réticulations provenant d'une insaturation éthylénique; et c) un revêtement extérieur imbibant disposé sur le revêtement intérieur imbibant. Le revêtement extérieur imbibant comprend un polymère organique hydrophile contenant de nombreuses réticulations provenant d'une insaturation éthylénique. Le revêtement intérieur imbibant et le revêtement extérieur imbibant comprennent en outre, ensemble ou séparément, des particules discrètes ayant une granulométrie moyenne comprise entre 1 et 500 nanomètres.
Diehl David A.
Hill Charles T.
Li Huawen
Swisher Robert
Wang Alan E.
Borden Ladner Gervais Llp
Hewlett-Packard Company
Ppg Industries Ohio Inc.
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