Abstract: There is provided a resin composition for producing a composite part, comprising: a) from 30 to 90 wt % by weight of the composition of an epoxy resin component; and b) from 5 to 50 wt % by weight of the composition of a curative component; wherein the epoxy resin component comprises N,N,N?,N?-tetraglycidyl-4,4?-diamino-3,3?-dimethyldiphenylmethane (M-TGDDM) in an amount of at least 30 wt % by weight of the epoxy resin component; and further wherein the curative component comprises one or more of a diaminodiphenyl sulfone, a diaminobenzophenone, a fluorene diamine, a methylene bis aniline, including hybrid methylene bis anilines, or a substituted diamine toluene. There is also provided the use of N,N,N?,N?-tetraglycidyl-4,4?-diamino-3,3?-dimethyldiphenylmethane (M-TGDDM) as a compression performance improving additive in a resin composition for producing a composite part.

Abstract: There is provided a curative system for epoxy resins comprising an alkyl benzene diamine and an additional aromatic amine.

Abstract: One or more layers of structured thermoplastic polymer are located within the interleaf zones of a preform or prepreg. The structured thermoplastic polymer is a film or membrane formed by: a) dissolving polyethersulfone or polyetherimide in a solvent to form a polymer dope; b) dispersing a curing agent for an epoxy resin in the polymer dope to form a curative-enriched polymer dope; c) casting the curative-enriched polymer dope onto a surface to form a dope layer; and d) removing the solvent from the dope layer to form a layer of structured thermoplastic polymer.

Abstract: An exemplary embodiment provides a configuration allowing promotion of communication among users by making use of exchange of a virtual currency. An information processing system includes a providing module configured to provide a content created by a first user to a second user and a management module configured to manage a virtual currency in association with each of the first and second users. The management module makes change such that the entirety or a part of the virtual currency associated with the second user is associated with the first user in response to an instruction from the second user, as appreciation of the content created by the first user.

Abstract: One or more layers of structured thermoplastic polymer are located within the interleaf zones of a preform or prepreg. The structured thermoplastic polymer is a film or membrane formed by: a) dissolving polyethersulfone or polyetherimide in a solvent to form a polymer dope; b) dispersing a curing agent for an epoxy resin in the polymer dope to form a curative-enriched polymer dope; c) casting the curative-enriched polymer dope onto a surface to form a dope layer; and d) removing the solvent from the dope layer to form a layer of structured thermoplastic polymer.

Abstract: One or more layers of structured thermoplastic polymer, such as a light weight veil of thermoplastic polymer fibers, are located within the interleaf zone of laminates that are composed of fibrous layers and thermosetting resin. The thermoplastic veils are used in the interleaf zones as a replacement for thermoplastic toughening particles.

Abstract: In an editor a plurality of valid start points are determined. Based on this plurality of start points a user may select one of the points. When a user selects one of the points, the editor determines at least one valid end point. The user may then draw a line between the selected point and a valid end point. As a result of the connection between the two points a new environment is created in the editor.

Abstract: A resin composition for producing a composite part, comprising a first resin component comprising a glycidyl ether epoxy resin, a second resin component comprising a naphthalene based epoxy resin, and an amino-phenyl fluorene curative; wherein the epoxy resin components a) and b) contain up to 33 wt % of the second resin component.

Abstract: A non-fibrous, apertured membrane comprises at least one thermoplastic polymeric material and has a discrete porous structure. The membrane is soluble in the thermoset matrix polymer of a composite material.

Abstract: One or more layers of structured thermoplastic polymer, such as a light weight veil of thermoplastic polymer fibers, are located within the interleaf zone of laminates that are composed of fibrous layers and thermosetting resin. The thermoplastic veils are used in the interleaf zones as a replacement for thermoplastic toughening particles.

Abstract: An exemplary embodiment provides a configuration allowing promotion of communication among users by making use of exchange of a virtual currency. An information processing system includes a providing module configured to provide a content created by a first user to a second user and a management module configured to manage a virtual currency in association with each of the first and second users. The management module makes change such that the entirety or a part of the virtual currency associated with the second user is associated with the first user in response to an instruction from the second user, as appreciation of the content created by the first user.

Abstract: A resin composition for producing a composite part, comprising a first resin component comprising a glycidyl ether epoxy resin, a second resin component comprising a naphthalene based epoxy resin, and an amino-phenyl fluorene curative; wherein the epoxy resin components a) and b) contain up to 33 wt % of the second resin component.

Abstract: Thermosetting resins are provided that are toughened with an irradiated thermoplastic toughening agent and which have reduced levels of solvent-induced micro crack formation. The thermoplastic toughening agent is treated with a sufficient amount of high-energy radiation (e.g. electron beam or gamma rays) to cause a reduction in solvent-induced micro crack formation in the cured resin when compared to the same toughened thermosetting resin in which the non-irradiated version of the thermoplastic toughening agent is used.

Abstract: In an editor a plurality of valid start points are determined. Based on this plurality of start points a user may select one of the points. When a user selects one of the points, the editor determines at least one valid end point. The user may then draw a line between the selected point and a valid end point. As a result of the connection between the two points a new environment is created in the editor.

Abstract: In an editor a plurality of valid start points are determined. Based on the plurality of start points a user may select one of the points. When a user selects one of the points, the editor determines at least one valid end point. The user may then draw a line between the selected point and a valid end point. As a result of the connection between the two points a new environment is created in the editor.

Abstract: The processing window for thermosetting resins that contain particulate hardeners is prolonged using the combined steps of heat-treating the resin to form a low-viscosity resin mixture in which the particles are dissolved and then molding the low-viscosity resin mixture at temperatures below the dissolution temperature of the particles to infuse a fibrous preform. The infused resin preform is heated to the curing temperature of the resin to provide final curing of the resin.

Abstract: A non-fibrous, apertured membrane comprises at least one thermoplastic polymeric material and has a discrete porous structure. The membrane is soluble in the thermoset matrix polymer of a composite material.

Abstract: One or more layers of structured thermoplastic polymer (14, 16, 24), such as a light weight veil of thermoplastic polymer fibers (14, 16, 24), are located within the interleaf zone of laminates that are composed of fibrous layers and thermosetting resin (12, 22). The thermoplastic veils (14, 16, 24) are used in the interleaf zones as a replacement for thermoplastic toughening particles.

Abstract: In an editor a plurality of valid start points are determined. Based on the plurality of start points a user may select one of the points. When a user selects one of the points, the editor determines at least one valid end point. The user may then draw a line between the selected point and a valid end point. As a result of the connection between the two points a new environment is created in the editor.

Abstract: A new user-friendly game editor allows game players with little or no experience to create new games or game levels. Game element structures can be “drawn” using an “auto completion” feature that automatically functionally connects and/or arranges chosen game elements to provide a visually pleasing environment that is easily navigated by game characters. Such technology can allow an end user game player with little or no technical background to easily develop game levels that are fun to play and do not suffer from any significant defects or other problems that would decrease ease of navigation, functionality or amount of fun. The user may share the authored game with other users via a network so other users can retrieve the game and play it on their own game playing devices. Users can provide feedback concerning the fun and functionality of the game. Good feedback can entitle the game author to recognition including for example bonus points.