A method including providing a substrate having a surface, the surface is hydroxylated and exposing the hydroxylated surface of the substrate to a PDMS oligomer. The PDMS oligomer has a formula of: R.sub.1—Si(CH.sub.3).sub.2—(O—Si(CH.sub.3).sub.2—).sub.n—O—Si(CH.sub.3).sub.2—R.sub.2 where at least one of R.sub.1 or R.sub.2 includes: —(CH.sub.2).sub.m—R.sub.3, R.sub.3=one of —Cl, —O—(CH.sub.2).sub.xH, —SiCl.sub.3, or —Si(O—(CH.sub.2).sub.xH).sub.3, x=0 to 10, m=0 to 10, n=10 to 500. R.sub.3 undergoes hydrolysis such that one terminal Si atom of the PDMS oligomer is covalently bonded to the hydroxylated surface by a condensation reaction to form a grafted layer of PDMS polymers on the surface. An article including a substrate having a surface with a grafted layer of PDMS polymers thereon, each of the PDMS polymers have a formula of: -Q.sub.1-Si(CH.sub.3).sub.2—(O—Si(CH.sub.3).sub.2—).sub.n—O—Si(CH.sub.3).sub.2-Q2 where Q.sub.1=—O— or —O—(CH.sub.2).sub.m—O—, Q.sub.2=-(-Q.sub.1-Si(CH.sub.3).sub.2—(O—Si(CH.sub.3).sub.2—).sub.n—O—Si(CH.sub.3).sub.2—).sub.p-Q.sub.3, Q.sub.3=—OH, —(CH.sub.2).sub.m—OH, —Si(OH).sub.3, or —(CH.sub.2).sub.m—Si(OH).sub.3, m=0 to 10, n=10 to 500, p=0 to 500, Q.sub.1=end of the PDMS polymer covalently bonded to the surface.

Powder coating compositions, particularly metal packaging powder coating compositions, coated metal substrates, and methods; wherein the powder coating compositions include powder polymer particles comprising a polymer having a number average molecular weight of at least 2000 Daltons, wherein the powder polymer particles have a particle size distribution having a D50 of less than 25 microns; and, in certain embodiments, one or more charge control agents in contact with the powder polymer particles.

A substrate processing system includes a liquid layer processor. The substrate processing system also includes an orchestrator. The orchestrator, after a liquid layer is deposited on a substrate: processes, using the liquid layer processor, the liquid layer to obtain a film. The film has an anisotropic conductivity. The film is disposed on the substrate. The film includes high aspect ratio conductive particles. The high aspect ratio conductive particles provide the anisotropic conductivity.

A substrate processing system includes a liquid layer processor. The substrate processing system also includes an orchestrator. The orchestrator, after a liquid layer is deposited on a substrate: processes, using the liquid layer processor, the liquid layer to obtain a film. The film has an anisotropic conductivity. The film is disposed on the substrate. The film includes high aspect ratio conductive particles. The high aspect ratio conductive particles provide the anisotropic conductivity.

A method for selectively modifying a base material surface, includes applying a composition on a surface of a base material to form a coating film. The coating film is heated. The base material includes a surface layer which includes a first region including silicon. The composition includes a first polymer and a solvent. The first polymer includes at an end of a main chain or a side chain thereof, a group including a first functional group capable of forming a bond with the silicon. The first region preferably contains a silicon oxide, a silicon nitride, or a silicon oxynitride. The base material preferably further includes a second region that is other than the first region and that contains a metal; and the method preferably further includes, after the heating, removing with a rinse agent a portion formed on the second region, of the coating film.

The invention relates to a lubricant coating (5) for a medical injection device (1), comprising successively: —a bottom layer (50) in contact with the medical device surface (21) of the container to be lubricated, comprising a mixture of cross-linked and non-cross-linked poly-(dimethylsiloxane), —an intermediate layer (51) consisting essentially of oxidized poly-(dimethylsiloxane) and having a thickness comprised between 10 and 30 nm and, —a top layer (52) consisting essentially of non-cross-linked poly-(dimethylsiloxane) and having a thickness of at most 2 nm. The invention also relates to a medical injection device comprising such a lubricant coating, and a manufacturing process for said coating.

Techniques regarding methods and/or apparatuses for protecting metal substrates during one or more lithography processes are provided. For example, one or more embodiments described herein can comprise a method that can include coating a metal substrate with a polymer film that self-assembles on a metal oxide positioned on a surface of the metal substrate. The method can also include covalently bonding the polymer film to the metal oxide.

Medical devices such as stents, stent grafts, and balloon catheters include a coating layer applied over a modified exterior surface of the medical device. The modified exterior surface comprises an exterior surface of the medical device subjected to a surface modification that decreases a surface free energy of the exterior surface before application of the coating layer an exterior surface. The coating layer comprises a hydrophobic therapeutic agent and at least one additive. The modified exterior surface may affect the release kinetics of the drug from the device, the crystallinity of the drug layer, the surface morphology of the coating and particle shape, or the particle size of drug of a therapeutic layer in the coating layer. For example, the effects caused by the modified exterior surface may increase the retention time and amount of therapeutic agent in tissue.

The hydrophobic and corrosion resistive film of cross-linked poly(hexafluoroisopropyl methacrylate) was prepared by photopolymerization. The starting materials were a monomer of 1,1,1,3,3,3-hexafluoroisopropyl methacrylate, a photoinitiator of hydroxycyclohexyl phenyl ketone, and a cross-linker of poly(ethyleneglycol diacrylate). Photopolymerization was used to start polymerization and to cure the polymer film on an aluminum surface. Drop-casting was used to deposit the fluoropolymer onto an aluminum substrate (AA 3003). The fluoropolymer film has high corrosion protection when measured by potentiodynamic polarization and open circuit potential techniques in an aqueous solution of 3.5% NaCl. Fourier-transform infrared spectroscopy was used to monitor the polymerization process. The dynamic contact angle technique was used to measure the hydrophobicity for the fluorinated polymer coating. Thermal stability of the fluorinated polymer was measured using thermogravimetric analysis. Treatment with strong acid followed by contact angle measurements before and after the treatment confirmed the chemical resistance for the coated aluminum.

A coating composition for applying a very thin film coating to a substrate such as a polymeric film comprises a copolymer such as a block copolymer (BCP) that is compatible with the substrate, an alcohol solvent or solvents capable of dissolving the copolymer, a hydrolysed metal alkoxide precursor, a carboxylic acid stabiliser, and an active agent in an ionic, molecular, or small nanoparticle form. The active agent is configured to provide a functionality to the coating composition, selected from antimicrobial, antifungal, barrier, therapeutic, electrical, electronic, magnetic and optical. The composition is a sol comprising a continuous non-sedimentable/stable suspension of very small sized (of nano order) amorphous inorganic polymers in their oligomeric or polymeric state, and comprising the active agent dispersed in a hydrolysed metal alkoxide-BCP matrix. Substrates coated with very thin coatings are also provided, including coated LDPE which is activated before coating by UV/ozone, plasma or corona treatment prior to deposition of a wetting layer.