Abstract: A radiation curable composition for preparing a polymeric membrane includes a) a membrane polymer selected from the group consisting of a polysulfone (PSU), a polyether sulfone (PES), a polyether etherketone (PEEK), a polyvinylchloride (PVC), a polyacrylonitrile (PAN), a polyvinylidene fluoride (PVDF), a polyimide (PI), a polyamide (PA) and copolymers thereof; b) a hydrophobic monomer or oligomer having at least two free radical polymerizable groups independently selected from the group consisting of an acrylate group, a methacrylate group, an acrylamide group, a methacrylamide group, a styrene group, a vinyl ether group, a vinyl ester group, a maleate group, a fumarate group, an itaconate group, and a maleimide group; and c) an organic solvent for the membrane polymer and the hydrophobic monomer. A polymeric membrane and a method for manufacturing the membrane are also disclosed.

Abstract: A dispersion of a conductive polymer and a polyanion in a non-aqueous medium further includes a compound including an acid sensitive functional group selected from the group consisting of a ketal, an acetal, an aminal, a hemi-ketal, a hemi-acetal, a hemi-aminal, a thioacetal, an amide acetal, an orthoester, an orthoether, an enolester, an enolether, and an enolamine.

Abstract: A radiation curable composition for preparing a polymeric membrane includes a) a membrane polymer selected from the group consisting of a polysulfone (PSU), a polyether sulfone (PES), a polyether etherketone (PEEK), a polyvinylchloride (PVC), a polyacrylonitrile (PAN), a polyvinylidene fluoride (PVDF), a polyimide (PI), a polyamide (PA) and copolymers thereof; b) a hydrophobic monomer or oligomer having at least two free radical polymerizable groups independently selected from the group consisting of an acrylate group, a methacrylate group, an acrylamide group, a methacrylamide group, a styrene group, a vinyl ether group, a vinyl ester group, a maleate group, a fumarate group, an itaconate group, and a maleimide group; and c) an organic solvent for the membrane polymer and the hydrophobic monomer. A polymeric membrane and a method for manufacturing the membrane are also disclosed.

Abstract: A dispersion of a conductive polymer and a polyanion in a non-aqueous medium further includes a compound including an acid sensitive functional group selected from the group consisting of a ketal, an acetal, an aminal, a hemi-ketal, a hemi-acetal, a hemi-aminal, a thioacetal, an amide acetal, an orthoester, an orthoether, an enolester, an enolether, and an enolamine.

Abstract: The present invention relates to a curable jettable fluid for making a flexographic printing master characterized in that the jettable fluid has a viscosity measured at jetting temperature of less than 15 mPa·s and comprises at least 50 wt. % of a mixture of a cyclic monofunctional (meth)acrylate monomer, a monofunctional urethane acrylate oligomer and a difunctional (meth)acrylate monomer.

Abstract: A method for making a flexographic printing master includes the steps of providing a flexographic printing support; providing an inkjet printing device; applying a mesa relief on the flexographic printing support with the inkjet printing device; and applying an image relief with the inkjet printing device on the mesa relief. A method for making a flexographic printing master includes the imaging apparatus.

Abstract: A radiation curable composition for preparing a polymeric membrane includes a) a membrane polymer selected from the group consisting of a polysulfone (PSU), a polyether sulfone (PES), a polyether etherketone (PEEK), a polyvinylchloride (PVC), a polyacrylonitrile (PAN), a polyvinylidene fluoride (PVDF), a polyimide (PI), a polyamide (PA) and copolymers thereof; b) a hydrophobic monomer or oligomer having at least two free radical polymerizable groups independently selected from the group consisting of an acrylate group, a methacrylate group, an acrylamide group, a methacrylamide group, a styrene group, a vinyl ether group, a vinyl ester group, a maleate group, a fumarate group, an itaconate group, and a maleimide group; and c) an organic solvent for the membrane polymer and the hydrophobic monomer. A polymeric membrane and a method for manufacturing the membrane are also disclosed.

Abstract: A method of preparing a flexographic printing master including an optional elastomeric floor, an optional mesa relief, and an image relief are applied in this order on a flexographic printing support includes applying and curing fluid droplets thereby building up a plurality of layers of fluid on top of each other, wherein each fluid droplet applied is at least partially cured before an adjacent fluid droplet is subsequently applied, with the exception that a fluid droplet applied during building up at least one layer of fluid is not cured before an adjacent fluid droplet of the same layer is subsequently applied.

Abstract: A method for making a flexographic printing master includes the steps of providing a flexographic printing support; applying image-wise on the flexographic printing support subsequent layers of radiation curable liquid by an inkjet printing device whereby one or more applied layers are immobilized using a curing device before one or more subsequent layers are applied, such that a relief with a top hat profile is obtained; and grinding the relief so that the height DT of a top hat segment is reduced. An imaging apparatus includes structure to perform the above method.

Abstract: The invention relates to an assembly of a porous metallic gas diffusion substrate and a polymeric separator membrane for use in an alkaline electrolyser or alkaline fuel cell. The polymeric separator membrane of the assembly comprises inorganic hydrophilic particulates dispersed in an organic polymeric binder. The polymeric separator membrane is gas tight when filled with electrolyte. The polymeric separator membrane is penetrating into at least a top portion of the porous metallic gas diffusion substrate. Also disclosed is a method to produce such an assembly via coating a paste on a porous metallic gas diffusion substrate.

Abstract: A polymerizable polymeric photoinitiator according to Formula (I): wherein: PL represents an n+m+p-functional polymeric core; n and m independently represent an integer from 1 to 30; p represents an integer from 0 to 10; o is 0 or 1; INI represents a group selected from the group consisting of a benzophenone, a thioxanthone, a carbazole, a anthraquinone, a camphor quinone, an ?-hydroxyalkylphenone, an ?-aminoalkylphenone, an acylphosphine oxide, a bisacyl phosphine oxide, an acylphosphine sulfide, a phenyl glyoxalate, a benzoin ether, a benzyl ketal, an ?-dialkoxyacetophenone, a carbazolyl-O-acyl-oxime, an ?-haloarylketone and an ?-haloaryl sulfone; L3 and L4 represent a substituted or unsubstituted divalent linking group comprising 1 to 14 carbon atoms; A represents a radically polymerizable functional group selected from the group consisting of an acrylate, a methacrylate, a styrene, an acryl amide, a methacryl amide, a maleate, a fumarate, an itaconate, an vinyl ether, an allyl ether, an allyl ester,

Abstract: The present invention relates to a curable jettable fluid for making a flexographic printing master characterized in that the jettable fluid comprises a monofunctional (meth)acrylate monomer, a polyalkylene glycol di(meth)acrylate monomer of which the polyalkylene glycol chain has a MW of at least 300 and at least 1 wt. % of a difunctional (meth)acrylate monomer according to Formula I) or (II), wherein k and m in Formula (I) is an integer ranging from 0 to 5, l in Formula (I) is an integer ranging from 1 to 20, n in Formula (II) is 1, 2, 3 or 4, R in Formula (I) and (II) is H or CH3, and R? in Formula (II) is H or an alkyl group.

Abstract: A sleeve segment for flexography has the shape of a sleeve with a first circular side containing a female registration element and a second circular side containing a male registration element. Also a method for manufacturing a flexographic sleeve segment, segmented sleeves and methods of flexographic printing.

Abstract: The present invention relates to a curable jettable fluid for making a flexographic printing master comprising a cyclic monofunctional (meth)acrylate monomer and a difunctional (meth)acrylate monomer characterized in that the fluid further comprises a copolymerizable plasticizing monomer preferably selected from the group consisting of diallyl phthalate and a low Tg monomer, of which the corresponding homopolymer has a glass transition temperature (Tg) below ?15° C.

Abstract: The present invention relates to a curable jettable fluid for making a flexographic printing master characterized in that the jettable fluid has a viscosity measured at jetting temperature of less than 15 mPa·s and comprises at least 50 wt. % of a mixture of a cyclic monofunctional (meth)acrylate monomer, a monofunctional urethane acrylate oligomer and a difunctional (meth)acrylate monomer.

Abstract: The present invention relates to a curable jettable fluid for making a flexographic printing master comprising an initiator, a cyclic monofunctional (meth)acrylate monomer and a difunctional (meth)acrylate monomer characterized in that the initiator is an oligomer, a polymer or a copolymerizable compound.

Abstract: A method of preparing a flexographic printing master including an optional elastomeric floor, an optional mesa relief, and an image relief are applied in this order on a flexographic printing support includes applying and curing fluid droplets thereby building up a plurality of layers of fluid on top of each other, wherein each fluid droplet applied is at least partially cured before an adjacent fluid droplet is subsequently applied, with the exception that a fluid droplet applied during building up at least one layer of fluid is not cured before an adjacent fluid droplet of the same layer is subsequently applied.

Abstract: A coating device for coating a peripheral surface of a sleeve body with a coating formulation includes a vertical support column for supporting a sleeve body in a vertical position coaxial with a coating axis, a carriage slideable along the vertical support column, and an annular coating stage attached to the carriage and moveable therewith for containing the coating formulation and for coating a layer of the coating formulation onto the peripheral surface of the sleeve body during a sliding movement of the carriage along the vertical support column. The coating device includes an irradiation stage that is arranged to be moveable with the annular coating stage and to provide radiation to at least partially cure the layer of coating formulation onto the peripheral surface so as to prevent flow off of the coating formulation.

Abstract: A coating device for coating a peripheral surface of a sleeve body with a coating formulation includes a vertical support column for supporting a sleeve body in a vertical position coaxial with a coating axis, a carriage slideable along the vertical support column, and an annular coating stage attached to the carriage and moveable therewith for containing the coating formulation and for coating a layer of the coating formulation onto the peripheral surface of the sleeve body during a sliding movement of the carriage along the vertical support column. The coating device includes an irradiation stage that is arranged to be moveable with the annular coating stage and to provide radiation to at least partially cure the layer of coating formulation onto the peripheral surface so as to prevent flow off of the coating formulation.

Abstract: A 3D-inkjet printing method includes the steps of a) providing two or more fluids having a different composition to an inkjet printer; b) mixing the two or more fluids in a controlled amount; c) jetting the mixture of the two or more fluids with the inkjet printer onto a support; d) at least partially curing the jetted mixture by actinic radiation or electron beam; and e) repeating steps b) to d) in order to build a 3D-relief on the support. The method is capable of printing 3D-objects with inkjet fluid sets in an inkjet printer.