摘要:
Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a polydiorganosiloxane precursor having oxalylamino groups. The polydioroganosiloxane polyoxamide block copolymers are of the (AB)n type.
摘要:
It is an objective of this invention to obtain: a composition superior in processability, dielectric properties, heat resistance, and adhesiveness by controlling phase separation of a 1,2-polybutadiene resin composition without deterioration of dielectric properties exhibited in high-frequency regions; and a multilayer printed wiring board using the same. This invention relates to a polybutadiene resin composition, comprising: a crosslinking component (A) comprising repeating units represented by the following formula (1) and having a number average molecular weight of 1000 to 20000; a radical polymerization initiator (B), the one-minute half-life temperature of which is 80° C. to 140° C.; and a radical polymerization initiator (C), the one-minute half-life temperature of which is 170° C. to 230° C.; wherein 3 to 10 parts by weight of the component (B) and 5 to 15 parts by weight of the component (C) are contained relative to 100 parts by weight of the component (A). The invention also relates to a prepreg, a laminate, and a printed wiring board, which are produced using the same.
摘要:
A composite resin molded product has a molded product body made of a resin and a fiber sheet material inserted on the surface of the molded product body. The fiber sheet material is formed of a knitted fabric, and the rear surface of the knitted fabric faces the molded product. The surfaces of fiber yarns of the knitted fabric are integrated with the molded product body by melting and solidifying.
摘要:
A decorative, lightweight panel structure that is adaptable for use as interior ceiling panels, interior wall panels, and exterior sheathing or siding, which exhibits excellent rigidity, and which can be made to exhibit a combination of good sound attenuation property, excellent aesthetic appearance, uniformity of aesthetic quality, outstanding weatherability, and/or low manufacturing cost, includes a non-woven fibrous batt comprised of thermoplastic fibers, a scrim layer bonded to each of two opposite sides of the non-woven fibrous batt, and a decorative film layer having a surface indicia on an exterior side and an opposite interior side bonded to one of the scrim layers.
摘要:
A cloth material for marking including: a label cloth made of a white cloth formed of a fiber containing a component having affinity for a sublimation dye; an intermediate layer disposed on a rear surface of the label cloth, the intermediate layer including a synthetic resin which has affinity for the component of the label cloth and which has a melting point higher than a sublimation temperature of the sublimation dye; a transfer adhesive layer including a hot-melt thermoplastic synthetic resin and disposed on a surface of the intermediate layer; and a sheet of release paper disposed on a surface of the transfer adhesive layer. The intermediate layer is formed and closely fixed on the rear surface of the label cloth by laminating or coating. The transfer adhesive layer is also formed by laminating or coating. Desired colors, patterns and/or figures are transferable from transfer paper printed with a sublimation dye onto a surface of the cloth material for marking that has a transfer adhesive layer on its rear surface.
摘要:
A primary carpet backing is provided for use in the formation of a tufted carpet which eliminates or reduces the need for a latex adhesive layer or the use of a secondary backing. The external surfaces of a woven or non-woven fibrous mat are coated with thermoplastic polymer particles having a lower melting temperature than the fibers of the mat. The mat possesses sufficient openings between fibers to be capable of undergoing tufting. Following tufting the tufted mat is heat treated so as to melt the thermoplastic polymer particles and to create a bond between the tufted carpet yarn fibers and the primary backing mat.
摘要:
Patches consisting of transparent or translucent shape memory material can be manufactured so as to affect repair of transparent or translucent parts that have been damaged. These patches can be used to cover cracks and holes or provide additional structural support for the damaged parts. The patches can vary greatly in size and properties depending on the desired application.
摘要:
A tent cloth canvas coated on the surface thereof with a photocatalyst, wherein (1) the adhesiveness between a photocatalyst and the tent cloth canvas is kept satisfactorily for an extended time, (2) an anti-fouling capability is kept for a long time, and (3) the photocatalyst carried on the tent cloth canvas does not promote a lowering with time of a tear strength. A tent cloth canvas coated on the surface thereof with a photocatalyst is used, wherein more than 50% in amount of a plasticizer contained in the canvas remains in comparison with that at an initial stage 1500 hours after the canvas is subjected to a sunshine carbon arc type accelerated weathering test as specified in JIS-K5400, or after 3-year outdoor exposure; and a tent clothe canvas having the above properties and structures further contains a plasticizer having a molecular weight of at least 400, and/or a plasticizer migration restricting layer is provided in the middle of the tent cloth and photocatalyst coating layer.
摘要:
A reflective insulation system. The reflective insulation system includes a reflective layer such as aluminum, a layer of fiberglass, and a layer of vapor retarding material. A first side of the layer of fiberglass is bonded to the reflective layer by a deposit of hot melt glue. The second side of the layer of fiberglass is bonded to the layer of vapor retarding material by a second deposit of hot melt glue. The vapor retarding layer may be a plastic material, such as polypropylene or a reflective material, such as aluminum. In an alternate construction, the reflective layer has a transverse dimension that is narrower than the vapor retarding material such that edge portions of the reflective layer are spaced inwardly with respect to edges of said vapor retarder material. A strip of adhesive tape, preferably foil tape, overlies and secures edge portions of the reflective and vapor retarder layers.
摘要:
A seaming system for forming a seam is disclosed, wherein the seam consists of at least two opposed sections of high-modulus, high-tenacity, low-elongation fabric sections joined by a tape. The system comprises a seamer head, and a seamer base that includes a topography configured to impart a predetermined pressure gradient to the adhesive layer, tape, and fabric sections of the seam. The resultant seam has a cross-section or thickness profile that generally corresponds to that of the applied pressure gradient. As such, the constructed seam more efficiently distributes stress imparted from any applied load.