Polymeric films
AssigneesSalts Healthcare Limited, Swansea University
InventorsShirin Alexander, Andrew Barron, Donald Hill, Lee Tretheway, Iain Powner
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Abstract
A polymeric film includes a substrate at least partially coated with hydrophobic particles, the hydrophobic particles include: a metal oxide core; and a hydrocarbon chain having from 2 to 40 carbon atoms, wherein the hydrocarbon chain is chemically bound to the metal oxide core.
Claims20
A polymeric film comprising a substrate at least partially coated with hydrophobic particles, the hydrophobic particles comprising:
- an iron oxide core;
- and
- a hydrocarbon chain having from 2 to 40 carbon atoms, wherein the hydrocarbon chain is chemically bound to the iron oxide core, the hydrophobic particles and the substrate are secured to one another by an adhesive and wherein the mass ratio of the hydrophobic particles and the adhesive is from 1.0:1.0 to 2.0:1.0,
- wherein the hydrophobicity of the polymeric film is tuned at different regions across a surface such that a first region of the polymeric film has an associated first water contact angle measurement and a second region of the polymeric film has an associated second water contact angle measurement which differs from the first water contact angle measurement, wherein the first and second regions of the polymeric film are each coated with the hydrophobic particles;
- and
- wherein the hydrocarbon chain is covalently bound to the iron oxide core via a functional group, the functional group comprises any one or a combination of:
- carboxylate, phosphinate, thiolate and/or thiocarboxylate.
A polymeric film comprising a substrate at least partially coated with hydrophobic particles, the hydrophobic particles comprising:
- an iron oxide core;
- and
- a hydrocarbon chain having from 2 to 40 carbon atoms,
- wherein the hydrophobicity of the polymeric film is tuned at different regions across a surface such that a first region of the polymeric film has an associated first water contact angle measurement and a second region of the polymeric film has an associated second water contact angle measurement which differs from the first water contact angle measurement, wherein the first and second regions of the polymeric film are each coated with the hydrophobic particles, and
- wherein the hydrocarbon chain is covalently bound to the iron oxide core via a functional group,
- wherein the functional group comprises any one or a combination of carboxylate, phosphinate, thiolate and thiocarboxylate.
A polymeric film comprising a substrate at least partially coated with hydrophobic particles, the hydrophobic particles comprising:
- an iron oxide core;
- a hydrocarbon chain having from 2 to 40 carbon atoms,
- wherein the hydrocarbon chain is covalently bound to the iron oxide core via a functional group, and
- wherein the functional group comprises any one or a combination of carboxylate, phosphinate, thiolate and thiocarboxylate.
Dependencies are inferred from the claim text.