Compositions and treated substrates having reversibly...

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

C08G 8/30 (2006.01) B05D 3/02 (2006.01)

Patent

CA 2512027

The present invention relates generally to substrates that exhibit useful, auto adaptable surface energy properties that depend on the environment of the substrate. Such surface energy properties provide relatively high advancing and receding contact angles for liquids when in contact with the target substrate surface. The substrates exhibit low surface energy quantities of at most about 20 millijoules per square meter (mJ/m2) at a temperature of about 25 degrees C and a surface energy greater than about 20 mJ/m2 at, or with exposure to, a temperature of about 40 degrees C. More specifically, encompassed within the present invention are textile substrates having this highly desirable unique surface energy modification property and which exhibit wash durable oil and water repellency and stain release features. Novel compositions and formulations that impart such surface energy modifications to substrates are also encompassed within this invention, as well as methods for producing such treated substrates.

L'invention concerne, de manière générale, des substrats présentant des propriétés énergétiques de surface auto-adaptables, utiles, qui dépendent de l'environnement du substrat. Ces propriétés énergétiques de surface offrent des angles de mouillage sortant et entrant relativement élevés destinés à des liquides, lorsqu'ils sont en contact avec la surface du substrat cible. Les substrats présentent des quantités d'énergie de surface basses d'au moins environ 20 millijoules par mètre carré (mJ/m?2¿) à une température d'environ 25 ·C et une énergie de surface supérieure à environ 20 mJ/m?2¿ à, ou avec une exposition à, une température d'environ 40 ·C. Plus particulièrement, cette invention concerne des substrats textiles possédant une propriété de modification énergétique de surface unique hautement souhaitable et qui présente une imperméabilité à l'eau et à l'huile résistant au lavage ainsi que des propriétés facilitant le détachage. L'invention concerne enfin de nouvelles compositions et formulations offrant ces modifications énergétiques de surface à des substrats, ainsi que des procédés de production de ces substrats traités.

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