摘要:
Provided is a carrier tape for a foam material which exhibits satisfactory holding properties to a flexible foam material, exhibits satisfactory removability without causing fracture of the foam material, and has good peel properties upon picking up. The carrier tape for a foam material includes a substrate and, arranged on one side thereof, a pressure-sensitive adhesive layer. The carrier tape has a 180-degree peel strength of 0.15 N/20 mm or more at a tensile speed of 300 mm/min with respect to a foam (trade name “SCF100”, supplied by Nitto Denko Corporation). The carrier tape also has a 180-degree peel strength of 0.30 N/20 mm or less at a tensile speed of 10 m/min with respect to the foam (trade name “SCF100”, supplied by Nitto Denko Corporation).
摘要:
Filling foam composition capable of providing excellent rustproofing and also suppressing reduction of a foam ratio of the filling foam composition even when reusing unwanted parts thereof and inferior goods thereof; a foam filling member using the same filling foam composition; and a filling foam produced by foaming the filling foam composition. The filling foam composition is prepared by mixing foamable polymer, a foaming agent, and a basic oxide in such a mixing ratio that a ratio of the basic oxide can be in the range of 0.05-70 parts by weight per 100 parts by weight of foaming agent. The mounting member for the filling foam composition to be mounted in an internal space of a hollow member is produced by mounting a mounting member on the filling foam composition obtained. The filling foam is formed by fitting the foam filling member in the internal space of the hollow member and, then, foaming the filling foam composition by the application of heat.
摘要:
The present invention provides a heat-foamable sheet that foams uniformly and omnidirectionally, a method for producing the heat-foamable sheet, and a foam filling member including the heat-foamable sheet. A heat-foamable sheet having a horizontal to vertical ratio of 1.5 or less when heated at 160° C. for 20 minutes is obtained by a method for producing a heat-foamable sheet including: an extrusion step of extruding a heat-foamable material containing a polymer and a foaming agent into an isotropy-containing shape including an isotropic portion of a generally arc shape; and a sheet-forming step of forming the heat-foamable material that is extruded in the extrusion step into a sheet shape.
摘要:
In a semiconductor test apparatus, a voltage source generates a power supply voltage to be supplied to a DUT. A decision processor makes the DUT execute a predetermined test sequence. A noise generator superimposes a periodic pulse-like noise voltage on the power supply voltage to be supplied to the DUT, while the test sequence is being executed. The noise generator superimposes a noise voltage synchronized with a clock signal to be supplied to the DUT.
摘要:
This invention discloses a method and system to search for a critical path which allows a quick and reliable search for a critical path by using an actual semiconductor device. When the number of the operating clock pulses between the input of a predetermined data to a semiconductor device and the output of the corresponding data is n pulses, each period of the n pulses is changed from a failing period T1 to a passing period T2 in order to search for a critical path.
摘要:
A dermal absorption-promoting agent comprising p-methane-3,8-diol and 1,3-butylene glycol as well as a topical formulation containing the same; and a dermal absorption-promoting agent further comprising 1,3-butylene glycol, as well as a topical formulation containing such dermal absorption-promoting agents.
摘要:
Provided are novel polycarbonate or polyestercarbonate resins having excellent performances including excellent transparency and thermal resistance, very small warping or deformation caused by water absorption, and the like.
摘要:
A molded product prepared by injection molding a wholly aromatic thermotropic liquid crystal polyester consisting of 4-oxybenzoil moiety, terephthaloyl moiety and 4,4'-dioxydiphenyl ether moiety is characterized in high impact strength, small mechanical anisotropy and excellent resistance to heat. The thermotropic liquid crystal polyester gives, by blending therewith a known thermotropic liquid crystal polyester, a composition which can yield a formed product having a superior strength and a relatively small elastic modulus.
摘要:
Hydroformylation of olefins is effected in an organic solvent in the presence of a rhodium complex and a trisubstituted phosphine to give the corresponding aldehydes. Addition of a diphosphinoalkane of the general formula ##STR1## wherein, in the formula, A.sup.1 and A.sup.2 are each aryl, R.sup.1 and R.sup.2 are each aryl or saturated hydrocarbon residues containing one or more carbon atoms, and Z is an alkylene radical whose principal chain contains 2 to 5 carbon atoms and optionally may have one or more lower alkyl substituents, to the hydroformylation reaction system in an amount of 0.20 to 2.5 equivalents per gram atom of the rhodium contained in the rhodium complex markedly prolongs the life of the rhodium catalyst.
摘要:
Process and apparatus for crimping a filament yarn, the process employed comprising forcing a hot fluid entrained filament yarn into a stuffing chamber in one direction, forcing a cold fluid from an opposite direction into a staying control chamber located down stream of said stuffing chamber, exhausting said hot fluid from the stuffing chamber and exhausting said cold fluid from the staying control chamber respectively.The apparatus comprises a hot fluid jet nozzle having a hot fluid supply conduit connected thereto, a stuffing chamber having a hot fluid exit, a staying control chamber having a cold fluid exit, and a cold fluid supply device in said order.