Abstract:
A curable composition and use thereof are provided. The composition can be useful in exhibiting excellent processability and workability, and providing a cured product which exhibits superior light extraction efficiency, crack resistance, hardness, thermal shock resistance, and adhesive properties, has superior reliability under severe conditions for a long period of time and prevents opacity and stickiness onto a surface thereof when cured. Also, the curable composition capable of preventing precipitation of an additive such as a fluorescent material or a photoconversion material and being formed into a cured product having excellent transparency even when the additive is added to the curable composition can be provided.
Abstract:
This invention relates to viscoelastic silicone rubber compositions that are the products of the reaction of: (a) a silanol-terminated polyorganosiloxane base; (b) a boron-containing crosslinking agent; and (c) a siloxane bond-forming crosslinking agent. In a viscoelastic silicone rubber composition of the invention some of the crosslinks, the siloxane crosslinks, are permanent and others of the crosslinks, the boron-containing crosslinks, are temporary. Because a fraction of its crosslinks can come apart and then reform, a viscoelastic silicone rubber composition of the invention can relax stress in response to strain and thus adapt to new shapes. The composition has sufficient permanent crosslinks, however, to establish a permanent equilibrium shape to which the composition will eventually return when not subject to any imposed stress. A viscoelastic silicone rubber composition has sufficient temporary crosslinks to give the composition a stiffness that is greater on short timescales than it is on longer timescales.
Abstract:
There are provided a crosslinkable elastomer composition which assures a small change in weight in both of There are provided a crosslinkable elastomer composition which assures a small change in weight in both of O2 plasma treatment and O2/CF4 plasma treatment and is capable of significantly inhibiting generation of foreign matters (particles) in these treatments, and a molded article made of the composition. The crosslinkable fluorine-containing elastomer composition comprises a crosslinkable fluorine-containing elastomer, silicon carbide particles having a bulk density of not more than 0.15 g/cm3, and further a crosslinking agent as case demands, and the molded article is obtained by crosslinking the composition.
Abstract:
The invention relates to a novel process for the preparation of precipitated silica which can be used as a reinforcing filler for elastomers. The invention also relates to novel precipitated silicas in the form of powder, granules or, preferably, substantially spherical beads, these silicas being characterized in that they have a BET specific surface of between 185 and 250 m2/g, a CTAB specific surface of between 180 and 240 m2/g, and a pore distribution such that the pore volume V2 made up of the pores with a diameter of between 175 and 275 Å represents less than 50% of the pore volume V1 made up of the pores with diameters of less than or equal to 400 Å, a pore volume (Vd1), made up of the pores with a diameter of less than 1 μm, of greater than 1.65 cm3/g, a fineness value (F.V.) of between 70 and 100 Å, and a content of fines (τf), after deagglomerability with ultrasound, of at least 50%.
Abstract translation:本发明涉及可用作弹性体增强填料的沉淀二氧化硅的制备方法。 本发明还涉及粉末,颗粒或优选基本上为球形的珠粒形式的新型沉淀二氧化硅,其特征在于它们的BET比表面积为185-250μm2 / g,CTAB比表面积为180-240m 2 / g,孔分布使得由直径在175和275之间的孔构成的孔体积V2表示小于 由直径小于或等于400的孔构成的孔体积V0的50%,孔直径小于1的孔体积(V SUB d1) 大于1.65厘米3 /克,细度值(FV)在70和100埃之间,细粉含量(tau> f f f)),,,,,,,,,) 超声波,至少50%。
Abstract:
The invention relates to a novel process for the preparation of precipitated silica which can be used as a reinforcing filler for elastomers. The invention also relates to novel precipitated silicas in the form of powder, granules or, preferably, substantially spherical beads, these silicas being characterized in that they have a BET specific surface of between 185 and 250 m2/g,a CTAB specific surface of between 180 and 240 m2/g,and a pore distribution such that the pore volume V2 made up of the pores with a diameter of between 175 and 275 null represents less than 50% of the pore volume V1 made up of the pores with diameters of less than or equal to 400 null, a pore volume (Vd1), made up of the pores with a diameter of less than 1 nullm, of greater than 1.65 cm3/g, a fineness value (F.V.) of between 70 and 100 null, and a content of fines (nullf), after deagglomerability with ultrasound, of at least 50%.
Abstract:
A rubber protective wax, comprising hydrocarbon compounds, a polyethylene wax and an antidegradant. The rubber protective wax of the present invention can render rubber good thermal oxidative aging resistance, static ozone aging resistance, dynamic ozone aging resistance, flex cracking resistance and tensile fatigue resistance, and has good protection effects in both static environment and dynamic load environment.
Abstract:
A fluidized sand composition for use as a filling material for sinkholes and the like weakened ground cavities. The fluidized sand composition is produced by mixing graded sand, water, a fluidizer, a plasticizer, and a surface active agent. The fluidized sand composition is easily injected into the ground cavity of a sinkhole. After filling, the fluidized sand composition will return to the solid natural condition according to the effect of plasticizer previously added. The fluidized sand composition allows for compaction, soil stabilization, permits water migration through the material, and can be easily excavated.
Abstract:
Embossing resins, methods of manufacturing such resins, and electrokinetic display system, which includes display cells containing such resins. The resins include a fluoropolymer in weight percentage 5%-60%, a difunctional diluent in weight percentage 0-30%, a monofunctional diluent in weight percentage 0-40%, a urethane diacrylate or functionalized nanoscale material, e.g., a functionalized urethane material, in weight percentage 5-50%, a photoinitiator in weight percentage 0.5-5%, and a surfactant in weight percentage less than 0.5%. The difunctional diluent may be Hexanediol Diacrylate, and the monofunctional diluent may be a monofunctional hydrocarbon. The resins are made by identifying a target index of refraction for a cured state thereof, and combining together, by weight percentage, the constituent components to produce the liquid state version of the embossing resin having a desired composite index of refraction.
Abstract:
Embodiments provide methods for assembling an apparel product. The methods include applying a composition to a portion of a major component of the apparel product or a portion of a minor component of the apparel product. The methods include coupling the portion of the minor component with the portion of the major component via the composition. The major component forms a base portion of the apparel product and is configured to be supported and worn at least partially over a portion of a wearer. The minor component forms a secondary portion configured to be coupled to the major component with an adhesive. The major component and/or minor component includes a recyclable material. The methods include converting the composition to the adhesive. The adhesive includes a material having a cycloalkene bond.
Abstract:
A carbon fiber composite material of the present invention includes: cell structures with an elastomer surrounded by a first carbon nanofiber and an interface phase thereof; cell structure assemblies as assemblies of more than one of the cell structures; and tie structures that join the cell structure assemblies to each other. The tie structures are formed by one or more first carbon nanofibers, one or more second carbon nanofibers, and the elastomer interface phase surrounding the one or more first carbon nanofibers and the one or more second carbon nanofibers.