Provided herein according to some embodiments is a method of forming a three-dimensional object comprising nylon 6 by additive manufacturing, as well as objects so produced. Also provided is a polymerizable liquid composition useful for producing a three-dimensional object comprising nylon 6 by additive manufacturing, which composition may include: (a) a light polymerizable first component, and (b) a heat polymerizable second component; said heat polymerizable second component comprising: (i) caprolactam monomers, (ii) a catalyst for anionic polymerization of caprolactam, and (iii) an initiator for anionic polymerization of caprolactam.

A method of manufacturing a patterned stamp (100) for patterning a contoured surface (10) is disclosed. The method comprises applying a layer (115) of a pliable material precursor over a master (50) carrying an inverse pattern (52) to form a desired pattern (112) in said layer; curing the pliable material precursor to form a pliable stamp layer (120) comprising said desired pattern; providing an intermediate stamp structure by adhering a porous pliable support layer (130) to the pliable stamp layer; releasing the intermediate stamp structure from the master; forcing the intermediate stamp structure onto the contoured surface with said pattern of features facing the contoured surface; forming the patterned stamp by filling the porous pliable support layer with a filler material to reduce the pliability of the support layer; and removing the patterned stamp from the contoured surface. A corresponding patterned stamp, imprinting method and imprinted article are also disclosed.

A method includes placing a fluid guide forming composition in contact with the optical source and with the optical fiber, injecting a first light in the guide forming composition from the optical source and/or from the optical fiber, to harden a central region of the optical guide, illuminating the guide forming composition with the second light to harden a peripheral region of the optical guide by photopolymerization initiated by the second photoinitiator system. The difference between the first peak wavelength and the second peak wavelength being more than 100 nm.

A high-quality photosensitive resin composition is disclosed which not only exhibits a reduced adhesion of dust, dirt, and paper powder to a relief and a good resistance to a UV ink but also allows a storage of a printing original plate for a long period of time, even if this plate is a plate in a low hardness to be used for a flexographic printing. A water-developable photosensitive resin composition for flexographic printing contains at least a polyamide and/or a polyamide block copolymer (a), a cross-linking agent having one or more unsaturated group(s) (b), a photo-polymerization initiator (c), and a fatty acid ester (d), wherein the fatty acid ester (d) has two or more hydroxyl groups and 11 to 23 carbon atoms in a molecule, and wherein a content of the fatty acid ester (d) in the photosensitive resin composition is 0.2 to 6% by weight.

A method of manufacturing a semiconductor device comprising: providing a semiconductor device substrate having a relief image on a surface of the substrate, the relief image having a plurality of gaps to be filled; applying a coating composition to the relief image to provide a coating layer, wherein the coating composition comprises (i) a polyarylene oligomer comprising as polymerized units one or more first monomers having two or more cyclopentadienone moieties and one or more second monomers having an aromatic moiety and two or more alkynyl moieties; wherein the polyarylene oligomer has a M.sub.w of 1000 to 6000 Da, a PDI of 1 to 2, and a molar ratio of total first monomers to total second monomers of 1:>1; and (ii) one or more organic solvents; curing the coating layer to form a polyarylene film; patterning the polyarylene film; and transferring the pattern to the semiconductor device substrate.

Provided is a conveying type washing device capable of achieving both maintainability and productivity. This conveying type washing device develops a flexographic printing plate precursor after imagewise exposure using a washing solution. The conveying type washing device has a conveying unit that conveys the flexographic printing plate precursor through a conveying path including a curved conveying path, and a development unit that develops the flexographic printing plate precursor in a state in which the flexographic printing plate precursor is immersed in the washing solution by the conveying unit and conveyed.

It is proposed to provide a photopolymer developing solution for providing a flexographic relief printing plate. This photopolymer developing solution comprises butylal alone or butylal and one or more organic cosolvents that are liquid at room temperature; or it comprises DPnB and one or more cosolvents and no butylal.

A method of creating an image film negative capable of masking non-image areas of one or more layers of liquid photopolymer during a step of imagewise exposing the one or more layers of liquid photopolymer to actinic radiation. The method includes the steps of (a) providing an image film negative comprising a negative of an image on the image film negative, wherein the negative of the image comprises a pattern of opaque areas; and (b) inkjet printing a filtering layer on portions of the image film negative not covered by the pattern of opaque areas, wherein the portions of the image film negative comprise portions where it is desirable to modulate intensity of actinic radiation in a subsequent exposure step.

An object of the present invention is to provide a water-developable flexographic printing plate precursor, a flexographic printing plate, and a photosensitive resin composition, which can maintain good water developability and can suppress adhesion and aggregation of dispersion in the developer in a case of repeated use and disposal of the aqueous developer. The water-developable flexographic printing plate precursor of the present invention is a water-developable flexographic printing plate precursor including a photosensitive layer, in which the photosensitive layer contains water-dispersible particles, and the water-dispersible particles have a core containing a polymer and having a glass transition temperature of 0° C. or lower and have a shell containing a polymer and having a glass transition temperature of 10° C. or higher.

A method for manufacturing, the method includes coupling a sample to a mount, and immersing at least part of the sample in a photosensitive liquid having an upper surface defining an interface between the photosensitive liquid and a surrounding environment. At least a polymer layer that is coupled to at least a section of the sample is formed by: setting a thickness of the polymer layer by controlling a position of the sample relative to the upper surface, and illuminating at least the upper surface so as to polymerize the photosensitive liquid to form the polymer layer.