Patent application number | Description | Published |
20100072642 | Method of Coating a Contact Lens - A method of coating a contact lens comprising the steps of forming an initiator layer on the surface of the contact lens by plasma deposition of at least one initiator monomer and polymerising a propagation monomer onto the initiator layer to form a coating layer of a polymeric material on the contact lens and a method of coating a medical device comprising the steps of forming an initiator polymer layer on at least a part of the medical device by plasma deposition of at least one initiator monomer and polymerising at least one zwitterionic monomer onto the initiator layer to form a coating layer of a polymeric material on the medical device. | 03-25-2010 |
20100330347 | METHOD AND APPARATUS FOR THE FORMATION OF HYDROPHOBIC SURFACES - The invention relates to the application of a coating to a substrate in which the coating includes a polymer material and the coating is selectively fluorinated and/or cured to improve the liquid repellance of the same. The invention also provides for the selective fluorination and/or curing of selected areas of the coating thus, when completed, providing a coating which has regions of improved liquid repellance with respect to the remaining regions and which remaining regions may be utilized as liquid collection areas. | 12-30-2010 |
20140315780 | PRODUCT - A delivery system for an active substance, comprising a substrate on which the substance is loaded for subsequent release, wherein: (i) the substrate has been at least partially coated with a polymer using plasma deposition (preferably pulsed plasma deposition); (ii) the active substance is present as a guest molecule within a cyclodextrin inclusion complex; and (iii) the inclusion complex is bound to the polymer through a chemical linkage formed between a hydroxyl group on the cyclodextrin and a functional group on the polymer. The system may be used to control the release of an active substance such as a perfume. Also provided are methods for preparing (a) the delivery system and (b) a functionalised substrate for use as part of the system, in which the polymer is suitably reacted with a cyclodextrin using an S N 2 nucleophilic substitution reaction, in particular a Williamson ether synthesis reaction. | 10-23-2014 |
20150017399 | METHOD OF PRODUCING A FUNCTIONALIZED SURFACE AND SURFACES MADE THEREBY - A method of photopatterning rewritable reactive groups onto surfaces using typically a plasmachemical deposition of functionalized materials, followed by molecular printing of inks. Subsequent treatment of the reactive groups allows for surface rewriting and also the method allows for the creation of either positive or negative image multifunctional rewritable patterned surfaces. | 01-15-2015 |
20150065659 | POLYMERIC STRUCTURE - The invention features a method of creating a polymer brush bearing covalently bound polymeric side chains, comprising the steps of: (a) deposition, onto a substrate, of a halogen containing initiator film or a precursor which is derivatized into a halogen containing initiator film; (b) surface ATRP growth, from the halogen containing initiator film formed in step (a), of a polymeric brush backbone incorporating side groups; (c) growth, from the polymeric brush backbone formed in step (b), of polymeric side chains on the polymeric brush backbone, to form a polymer brush in which the polymeric side chains constitute the bristles of the brush. | 03-05-2015 |
Patent application number | Description | Published |
20090318609 | Method for producing a nitrogen functionalised surface - A method is provided for applying a coating containing reactive nitrogen functionality contained within an aromatic heterocyclic structure to a substrate. The method includes subjecting said substrate to a plasma discharge of a monomer possessing said heterocyclic nitrogen functionality. | 12-24-2009 |
20100009095 | Method and Apparatus for Producing a Coating on a Substrate - The invention is directed toward the use of an atomizer to inject a coating material typically in the form of a liquid/solid particulate slurry into a sub-atmospheric pressure plasma to generate a high flux of excited coating forming material that permits the rapid deposition of a composite coating onto a substrate. The use of plasma discharges at reduced pressures results in the more efficient consumption of process precursors and gases, a reduced risk of explosion compared to atmospheric pressure processes and facilitates the removal of volatile components from the deposited composite coatings prior to their use. | 01-14-2010 |
20100055413 | ARTICLE, AND A METHOD FOR CREATING THE ARTICLE, WITH A CHEMICALLY PATTERNED SURFACE - The invention relates to the provision of an article and a method of forming an article with a surface which can have at least one sub-layer and a top layer of material. At least one part of the top layer is selectively removed to expose at least one sub-layer and/or the surface of the substrate and allow the functionality of the sub-layer and/or surface to be utilised in the area(s) where it is exposed. The top layer, where it remains, acts as a barrier to the sub-layer and/or surface being exposed to the surrounding environment. Typically parts of the top layer are removed in a patterned manner to provide a series of predefined areas at which the sub-layer or sub-layers are selectively exposed. | 03-04-2010 |
20100240827 | Method for Producing a Grafted Polymer Coating and Substrates Formed in Accordance With the Method - A method for producing polymer coatings by surface initiated polymerization from a plasma deposited coating is provided. The modification of surfaces by polymer attachment is a versatile and efficient means of controlling interfacial properties, such as surface energy (i.e. wetting behavior), permeability, bio-activity, and chemical reactivity. The present invention provides a method whereby a plasma deposited coating is applied to a substrate and the polymer coating formed by surface initiated polymerization is formed on the coating rather than the substrate itself. This means that the growth of the polymer using the grafting from procedure can be performed efficiently and independently of the substrate from. | 09-23-2010 |
20110177255 | METHOD FOR PRODUCING AN ALDEHYDE CONTAINING COATING - A method is provided for applying a reactive aldehyde containing coating to a substrate. The method includes subjecting a substrate to a plasma discharge in the presence of a compound of formula (I): | 07-21-2011 |