Disclosed herein is a multilayer barrier film for coating a transparent polymeric substrate (A), the multilayer barrier film (MLBF) including in the order from (B) to (C) to (D): one or more transparent, at least partially inorganic barrier layers (B), one or more transparent, radiation-cured (meth)acrylate layers (C), and one or more transparent, thermally-cured coating layers (D). TFurther disclosed herein is a multilayer barrier film (MLBF) coated substrate and methods for producing the multilayer barrier film (MLBF) and the multilayer barrier film (MLBF) coated substrate. Additionally disclosed herein is a use of MLBF the multilayer barrier film (MLBF) coated substrates in photovoltaic applications.

Provided herein is a resin composition containing milled fibreglass and graphene. Also provided herein is a composite material containing cured resin composition, fibreglass reinforced resin containing the composite material and further fibreglass, a laminate including a layer of the fibreglass reinforced resin, and methods of making the resin composition, composite material and fibreglass reinforced resin. The composition, composite material and fibreglass reinforced resin and laminate find use in, for example, the construction of swimming pools and spa pools.

The present invention relates to a process for repairing a coating film by applying an adhesion primer comprising a hydroxy-functional (meth)acrylate resin, a hydroxy-functional epoxy resin, a polyisocyanate, and an epoxy-functional organosilane directly to a substrate that is a substrate body with an original coating that has defects, to form an adhesion-promoting film and, applying at least one further layer of coating to the resultant adhesion-promoting film. The invention further relates to the use of the adhesion primer to improve the adherence of a further coating layer to such substrate, preferably to a substrate with a substrate body of glass fiber-reinforced unsaturated polyester resin, of glass fiber-reinforced epoxy resin, or of glass fiber-reinforced vinyl ester resin, wherein the further coating layer preferably is a polyurethane-based coating. The present invention further relates to a substrate coated with a coating film that has been repaired according to such a process.

A functionalized carbon fiber having covalently bound on its surface a sizing agent containing epoxy groups, at least some of which are engaged in covalent bonds with crosslinking molecules, wherein each of said crosslinking molecules possesses at least two epoxy-reactive groups and at least one free functional group reactive with functional groups of a polymer matrix in which the carbon fiber is to be incorporated, wherein at least a portion of said cros slinking molecules are engaged, via at least two of their epoxy-reactive groups, in crosslinking bonds between at least two epoxy groups of the sizing agent. Composites comprised of these functionalized carbon fibers embedded in a polymeric matrix are also described. Methods for producing the functionalized carbon fibers and composites thereof are also described.

A composite material layer, which is a curable resin which is in the form of a solid layer at 20? C., the composite material layer being a prepreg of at least one ply of fibrous reinforcement material at least partly impregnated by the curable resin or a film of the curable resin, wherein at least 50 wt % of the curable resin comprises at least one polymerisable vinyl ester prepolymer having at least two carbon-carbon unsaturated functional groups, the prepolymer being polymerisable by reaction of the unsaturated functional groups to form a cured resin, wherein the curable resin further is a free-radical curing system for polymerizing the polymerisable vinyl ester prepolymer.

Methods of forming a boat hull include applying an outer polymer layer onto a hull mold, the outer polymer layer being impregnated with a biologically active chemical substance that inhibits biofouling-induced chemical, biological, and bio-proliferative damage. An inner polymer layer is applied onto the outer polymer layer, the inner polymer layer being impregnated with a biologically active chemical substance that inhibits biofouling-induced chemical, biological, and bio-proliferative damage. One or more layers of fiberglass matting are applied on the inner polymer layer, the fiberglass matting being saturated with a polymer selected from one of a group of polymers comprising a vinyl ester polymer, a phthalic unsaturated polyester polymer, and an epoxy polymer.

A composition with improved adhesive and sealant properties comprises a) a pre-polymer comprising a polymeric unit of the general formula (-A-B-).sub.n, wherein A represents a substituted or un-substituted ester, B represents a substituted or un-substituted acid ester comprising at least two acid ester functionalities, and n represents an integer greater than 1; wherein the content of grafted anhydride in the composition is less than 0.05 mol/mol of polyacid.

A method of processing a carbon fiber tow includes the steps of providing a carbon fiber tow made of a plurality of carbon filaments, depositing a sizing composition at spaced-apart sizing sites along a length of the tow, leaving unsized interstitial regions of the tow, and cross-cutting the tow into a plurality of segments. Each segment includes at least a portion of one of the sizing sites and at least a portion of at least one of the unsized regions of the tow, the unsized region including and end portion of the segment.

The present invention provides a SMC of which excessive thickening with time is suppressed while of which sufficient initial thickening by an isocyanate-based thickener is maintained, particularly of which a decrease in flowability at the time of molding to be easily actualized in the case of containing an aromatic vinyl compound such as styrene is suppressed, and which exhibits excellent storage stability and moldability, a molding material for obtaining the SMC, and a fiber-reinforced composite material using the SMC. The invention provides a molding material including: a matrix resin composition containing the following Component (A), the following Component (B), the following Component (D) and the following Component (E); and the following Component (C), in which a proportion of the Component (E) with respect to 100 parts by mass of a sum of the Component (A) and the Component (B) is 0.002 part by mass or more and 0.08 part by mass or less: Component (A): a compound having either or both of a hydroxyl group and a carboxyl group and a polymerizable unsaturated group, Component (B): an aromatic vinyl compound, Component (C): a reinforcing fiber bundle having a fiber length of 5 mm or more and 120 mm or less, Component (D): an isocyanate compound, and Component (E): a metal chelate compound.

The invention relates to a method for producing a sound and/or thermal insulation element using foamable and/or prefoamed polymer particles which are coated with a binding agent, and preferably with an organic binding agent, and thereafter are subjected to a shaping process during which the polymer particles are bonded and/or sintered to one another, the bonding being caused by way of the binding agent. According to the invention, a non-hydrophilic binding agent is used for coating the foamable and/or prefoamed polymer particles.

The invention furthermore relates to a sound and/or thermal insulation element.