99results about How to "Solve high hardness" patented technology

The invention is directed to a hand access system that provides hand access to a surgical area while maintaining pneumoperitoneum during laparoscopic surgery. The hand access system comprises a sheath retractor adapted to dilate a wound stretchable to a desired diameter, the sheath retractor includes a first ring being adapted for disposition interiorly of the wound, a second ring being adapted for disposition exteriorly of the wound, and a sheath being disposed in a generally cylindrical form between the first ring and the second ring and operable to exert a radial retraction force on the wound. The hand access system further comprises a detachable hand seal adapted to be removable from the second ring of the sheath retractor. The sheath retractor may be formed of an elastomeric material, and the hand seal may be formed of a gel material and includes a slit providing an instrument seal in the presence of an instrument or hand and a zero seal in the absence of the instrument or hand. In another aspect, there is disclosed a surgical access device adapted for disposition relative to an incision in a patient comprising a valve including a plurality of overlapping sheets defining an access channel, and a ring having an inner diameter for holding the valve by fixing each of the overlapping sheets along a portion of the perimeter, the access channel extends into communication with the incision in the patient. Each of the overlapping sheets includes a portion of the perimeter that is not fixed to the inner diameter of the ring, which provide open edges defining the access channel. The open edges slightly overlap at the center of the ring. The open edges may have different shapes including at least one of a straight edge, concave, convex and a cross-configuration. The hand access device may further comprise a septum seal formed at the proximal and distal ends of the ring.

An access device particularly adapted for use in laparoscopic surgery facilitates access with instruments, such as the hand of the surgeon, across a body wall and into a body cavity. The device can be formed of a gel material having properties for forming a zero seal, or an instrument seal with a wide range of instrument diameters. The gel material can be translucent facilitating illumination and visualization of the surgical site through the access device.

A surgical access device includes a single valve that forms a seal with a body wall and provides an access channel into a body cavity. The valve has properties for creating a zero seal in the absence of an instrument as well as an instrument seal for an instrument having a diameter up to about 37 mm. The valve can include a gel material and the access channel can include a protective sleeve to provide for wound protection during insertion and withdrawal of a sharp surgical instrument. The valve further comprises a cap ring which may be inserted or molded with the gel material. The protective sleeve may be bonded or molded around an inner diameter of the cap ring. The protective sleeve may be a single tubular member, or may comprise a plurality of axially extending sleeve members having a plurality of axial slits. The protective sleeve and the cap ring may comprise of the same or different materials. The surgical access device further comprises at least one support ring disposed circumferentially of the valve forming a hollow space, and a wound retractor operatively placed in the hollow space. The wound retractor includes an inner ring, an outer ring, and a flexible sleeve connecting the inner ring and the outer ring.

The invention is directed to a hand access system that provides hand access to a surgical area while maintaining pneumoperitoneum during laparoscopic surgery. The hand access system comprises a sheath retractor adapted to dilate a wound stretchable to a desired diameter, the sheath retractor includes a first ring being adapted for disposition interiorly of the wound, a second ring being adapted for disposition exteriorly of the wound, and a sheath being disposed in a generally cylindrical form between the first ring and the second ring and operable to exert a radial retraction force on the wound. The hand access system further comprises a detachable hand seal adapted to be removable from the second ring of the sheath retractor. The sheath retractor may be formed of an elastomeric material, and the hand seal may be formed of a gel material and includes a slit providing an instrument seal in the presence of an instrument or hand and a zero seal in the absence of the instrument or hand. In another aspect, there is disclosed a surgical access device adapted for disposition relative to an incision in a patient comprising a valve including a plurality of overlapping sheets defining an access channel, and a ring having an inner diameter for holding the valve by fixing each of the overlapping sheets along a portion of the perimeter, the access channel extends into communication with the incision in the patient. Each of the overlapping sheets includes a portion of the perimeter that is not fixed to the inner diameter of the ring, which provide open edges defining the access channel. The open edges slightly overlap at the center of the ring. The open edges may have different shapes including at least one of a straight edge, concave, convex and a cross-configuration. The hand access device may further comprise a septum seal formed at the proximal and distal ends of the ring.

A balloon catheter having a balloon formed at least in part of a blend of a first polymeric material having a first Shore durometer hardness, and at least a second polymeric material having a second Shore durometer hardness less than the Shore durometer hardness of the first polymeric material. The balloon of the invention has enhanced softness and flexibility due to the presence of the second polymeric material, and a lower than expected compliance. In a presently preferred embodiment, the balloon is formed of a blend of polymeric materials comprising polyether block amides.

Extruded net with at least some strands which melt away upon the application of heat while other strands maintain elastic, or other desirable, properties. This netting is advantageously combined with a fabric in which the low melting strands function as an adhesive, while the high melting strands maintain their designed properties in the final laminate product.

A light emitting device includes a light emitting element, a sealing material for sealing the light emitting element, a first filler included in the sealing material, and a second filler included in the sealing material. The second filler includes a particle diameter smaller than that of the first filler.

The invention is a radiation curable coating containing an antimicrobial agent, where upon irradiation with UV light, the radiation curable coating rapidly cures to a polymeric coating. The polymeric coating has durable antimicrobial properties, being especially effective at preventing the growth of Staphylococcus aureaus and Kleibsella pneunoniae on wood flooring and furniture. The major components in the radiation curable coating are a urethane acrylic oligomer, a radiation cure package, an antimicrobial agent, a cross-linking agent, and optionally, an additive package. The radiation curable urethane oligomer is a relatively short chain backbone urethane polymer that is end capped with a radiation curable moiety, where the moiety is an acrylic. The cross-linking agent is one or more monomers used to lower the viscosity and promote cross-linking, and include acrylate esters of mono-, di-, tri-, or tetrafunctional alcohols. The radiation cure package contains at least one photoinitiator.

Provided are a coated cutting tool having excellent wear resistance and excellent resistance to chipping as well as excellent fracture resistance such that the coated cutting tool is unlikely to cause backward movement of the tool edge position due to wear or chipping, and a method for producing the same.A coated cutting tool comprising a base material having a surface coated with a coating film, wherein the coating film comprises at least one layer comprised of a TiCN columnar crystal film, wherein the TiCN columnar crystal film has an average grain size of 0.05 to 0.5 μm, as measured in the direction parallel to the surface of the base material, and exhibits an X-ray diffraction pattern having a peak at a diffraction angle 2θ in the range of from 121.5 to 122.6° wherein the peak is ascribed to the (422) crystal facet of the TiCN columnar crystal as measured using CuKα radiation.

Provided is a charging member hardly causing a cleaning failure to suppress occurrence of a vertical streak image in an electrophotographic apparatus. The charging member comprises a support, an elastic layer, and a surface layer. The surface layer comprises a polymer compound having at least one bond of Si—O-M bond and Si—O—Ta bond, at least one bond of M-O—Ge bond and Ta—O—Ge bond, and Si—O—Ge bond. M represents any element selected from the group consisting of Ti, Zr, and Hf. The polymer compound has structural units represented by the formula (1) and (2), and at least one structural unit of structural units represented by the formula (3) and (4). The charging member has a crack extending from its surface to the elastic layer, and the crack has a convexly raised edge by which a surface of the charging member is roughened.

An electrically conductive thermoplastic elastomer and a sealing and / or EMI shielding product comprising a substantially electrically non-conductive matrix material and an electrically conductive filler part which contains metal. The specific resistance of the elastomer is at most 1 Omega.cm.

A soil or snow probe which incorporates a load cell in the probe head and also an accelerometer so that a vertical strength profile of the snow or soil can be established. The device does not need to be driven at a constant speed and can be manually driven into the soil or snow. The resistance to penetration is measured using a load cell which incorporates a low duro polymer selected for its ability to behave like a non compressible fluid. The device is portable and provides data quickly.

The thermally conductive resin composition of the present invention contains (a) a matrix component, (b) a larger-diameter thermally conductive inorganic powder, (c) a smaller-diameter thermally conductive inorganic powder, and (d) a vulcanizing agent and / or curing agent. The surface of the smaller-diameter thermally conductive inorganic powder is selectively treated with a silane compound represented by R(CH3)aSi(OR′)3-a (wherein R is an unsubstituted or substituted organic group having 6 to 20 carbon atoms, R′ is an alkyl group having 1 to 4 carbon atoms, and a is 0 or 1) or a partially hydrolyzed product thereof, and the amount thereof is smaller than the amount necessary to coat the entire surface area of the smaller-diameter thermally conductive inorganic powder. Accordingly, a thermally conductive resin composition that has a low hardness and a high thermal conductivity and that undergoes little outgassing and has storage stability is provided even when large amounts of thermally conductive inorganic powder is loaded into the resin component.

A soil or snow probe which incorporates a load cell in the probe head and also an accelerometer so that a vertical strength profile of the snow or soil can be established. The device does not need to be driven at a constant speed and can be manually driven into the soil or snow. The resistance to penetration is measured using a load cell which incorporates a low duro polymer selected for its ability to behave like a non compressible fluid. The device is portable and provides data quickly.

An elevator drive belt, while applying a friction force thereto, drives an elevator rope which links an elevator cage and a counterweight together. A rubber hardness of the belt ranges from about 50 to 90 degrees of JIS-A hardness so as to suppress creep slip due to a shearing strain while the elevator is in operation. Even if the elevator cage and the counterweight are reduced in weight and the friction force to be applied to the elevator rope decreases due to the weight reduction, a friction force onto the elevator rope from the elevator drive belt compensates and guarantees a drive force of the elevator.

It is an object of the present invention to provide a power semiconductor device, which is capable of being operable regardless of thermal stress generation, reducing a heat generation from wire, securing the reliability of bonding portion when the device is used for dealing with a large amount current and / or under a high temperature atmosphere, a method of manufacturing the device and a bonding wire. In a power semiconductor device in which a metal electrode (die electrode 3) on a power semiconductor die 2 and another metal electrode (connection electrode 4) are connected by metal wire 5 using wedge bonding connection, the metal wire is Ag or Ag alloy wire of which diameter is greater than 50 μm and not greater than 2 mm and the die 3 has thereon one or more metal and / or alloy layers, each of the layer(s) being 50 Å or more in thickness and a metal for the layer is selected from Ni, Cr, Cu, Pd, V, Ti, Pt, Zn, Ag, Au, W and Al.

The purpose of the invention is to provide technology, which, in addition to being capable of forming thick hard carbon films of excellent durability even using PVD, is able to establish both chipping resistance and wear resistance in the formed hard carbon film and able to improve low friction properties and peeling resistance. Provided is a coating film to be coated on the surface of a substrate, the coating film having a total film thickness of greater than 1 μm to 50 μm wherein: when a cross-section is observed using bright field TEM images, white hard carbon layers that are shown as relatively white and black hard carbon layers that are shown as black are alternately laminated in the thickness direction; and the white hard carbon layers have regions that have grown in a fan-shape in the thickness direction.

The invention discloses a soft PP flame retardant with ultrahigh fluidity. The soft PP flame retardant is prepared from 40-90% by mass of a base resin, 2-40% of a flame retardant, 1-30% of polar cooling master batches, 0.05-1% by mass of an antioxidant, 0.2-5% by mass of a dispersant, 0.1-1% by mass of a UV absorbent and 0.1-1% by mass of a light stabilizer. The soft PP flame retardant has low hardness, a good hand feeling, a low processing temperature, a narrow molecular weight distribution range, spinning easiness, good toughness, no precipitation, aging resistance, excellent mechanical properties, good adhesion to polyester, polyethylene and polypropylene, short consumption time, high production efficiency, production convenience, industrial production feasibility and good application prospect in a PP flame-retardant non-woven fabric.

The invention provides a golf ball material which is a resin mixture composed of (a) an olefin-methacrylic acid copolymer and / or an olefin-methacrylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 120,000 to 200,000 and a weight-average molecular weight (Mw) to number-average molecular weight (Mn) ratio of from 4.0 to 7.0, or a metal neutralization product thereof, (b) an olefin-acrylic acid copolymer and / or an olefin-acrylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 150,000 to 220,000 and a weight-average molecular weight (Mw) to number-average molecular weight (Mn) ratio of from 5.5 to 8.5, or a metal neutralization product thereof, (c) an organic acid or a metal salt thereof, and (d) a basic inorganic metal compound for neutralizing at least 70 mol % of acid groups in components (a) to (c), which resin mixture has a Shore D hardness of from 30 to 60. The golf ball material of the invention is a low-hardness material. Golf balls in which an injection molding of the golf ball material is used as a cover material have an excellent rebound and durability.

The present invention relates to a compressed, chewable tablet containing at least one active ingredient, a water-disintegratable, compressible carbohydrate and a binder. These components are dry blended and compressed into convex-shaped tablet having a hardness of about 2 to about 11 kp / cm2 and friability less than 1%.

A pattern-transferring film having a print pattern provided on an upper surface thereof is floated on a liquid surface within a transferring bath and an objective body is immersed into a liquid within the transferring bath together with the pattern transferring film under a liquid pressure so as to transfer the print pattern onto the objective body. An ink set of at least blue, yellow and red inks is used for printing the pattern on the pattern-transferring film. Each of the printing inks comprises at least a resin ingredient and a pigment including color pigments. The color pigment for the blue ink is a phthalocyanine blue, the color pigment for the yellow ink is an isoindolinone yellow and the color pigment for the red ink is a quinacridone red. The ink set may include one or both of a white ink and a black ink. The color pigment for the white ink is a titanium white and the color pigment for the black ink is a carbon black. All the five color printing inks have a weather resistance of more than 3000 hours on a weather resistance test by a JIS based sunshine weather meter and therefore a color tone of the transferred pattern obtained by using these printing inks is balanced and the pattern transferred article having such a transferred pattern has the same weather resistance, which causes the article to have its life span maintained.

A resin composition to be used as a material for a various part of an automotive vehicle. The resin composition comprises a copolymer (A) formed by copolymerization of a first unsaturated monomer (a) and a second mononer (b). The first unsaturated monomer has a functional group which is bondable by hydrogen bond to a hydroxyl group. The second monomer is copolymerizable with the first unsaturated monomer. A metal oxide (B) is dispersed in the copolymer and having hydroxyl groups and hydrophobic groups at surface of the metal oxide.

A silicone rubber sponge-forming emulsion composition is provided that, even when the quantity of reinforcing silica filler is increased, does not exhibit a decline in emulsion stability, avoids defects in cell morphology of the sponge, and avoids a substantial increase in hardness of the sponge. A method of producing a silicone rubber sponge from this composition is also provided. The A silicone rubber sponge-forming emulsion composition comprises (A) 100 weight parts of a liquid diorganopolysiloxane that has at least two silicon-bonded alkenyl groups in each molecule, (B) 1 to 50 weight parts of a reinforcing silica filler comprising (b1) a fumed silica and (b2) a precipitated silica in a (b1) / (b2) weight ratio of 0.01 / 1 to 30 / 1, (C) 50 to 250 weight parts of water that contains (c) a smectite clay, (D) 0.1 to 7 weight parts of a sorbitan fatty acid ester, (E) 0 to 10 weight parts of an isononanoic acid ester, (F) 0 to 10 weight parts of a Guerbet alcohol, and (G) a curing agent in a quantity sufficient to crosslink and cure component (A).

An intermediate transfer belt including: a base layer; and an elastic layer, the elastic layer being laid on the base layer to form a laminated structure, wherein the elastic layer is an acrylic rubber-elastic layer with flame retardancy where the acrylic rubber-elastic layer has VTM-0 grade according to the UL94VTM burning test, wherein the elastic layer has a Martens hardness of 0.2 N / mm2 to 0.8 N / mm2 when indented to a depth of 10 μm, wherein the elastic layer has a uniform concavo-convex pattern in a surface thereof, and the uniform concavo-convex pattern is formed by arranging individual spherical resin particles in the surface of the elastic layer in a plane direction thereof, and wherein the intermediate transfer belt is configured to receive a toner image formed by developing, with a toner, a latent image on an image bearing member.

Provided are: a thermally conductive silicone composition which, while having low hardness, exhibits excellent re-workability and excellent long-term stability; and a thermally conductive silicone moulded article obtained by moulding said composition into a sheet shape. The thermally conductive silicone composition includes: an organopolysiloxane (a) which has, in at least molecular side chains, alkenyl groups bonded to silicon atoms, and in which the number of alkenyl groups in molecular side chains is 2-9; an organohydrogenpolysiloxane (b) in which at least both terminals are closed by hydrogen atoms directly bonded to silicon atoms; a thermally conductive filler (c); a platinum group metal-based curing catalyst (d); and an organic antioxidant and / or an inorganic antioxidant as an antioxidant (e). When (L) represents the average number of siloxane bonds in component (a) between silicon atoms having, directly bonded thereto, alkenyl groups in molecular side chains, and (L′) represents the average polymerization degree of component (b), L′ / L=0.6-2.3 is satisfied.

It is an object of the present invention to provide a rubber composition which is excellent in sealing properties and acid resistance, has low reaction force, low hardness and low compression set and particularly has such high heat resistance that the rubber composition does not crack even when it is used under the conditions of high temperatures and high compression. It is another object of the present invention to provide uses of the rubber composition and main bodies on which the rubber composition has been mounted. The rubber composition of the present invention comprises an ethylene / α-olefin / non-conjugated polyene copolymer [A] and calcined talc [B].

The invention provides a golf ball material which is a resin mixture composed of (a) a metal-neutralized polymer which is an olefin-unsaturated carboxylic acid copolymer and / or an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 40,000 to 200,000 and a weight-average molecular weight (Mw) to number-average molecular weight (Mn) ratio of from 3.5 to 8.5, wherein at least 30 mol % of acid groups on the copolymer are neutralized, (b) an organic acid or a metal salt thereof, and (c) a basic inorganic metal compound for neutralizing at least 70 mol % of acid groups in components (a) and (b), which resin mixture has a Shore D hardness of from 30 to 50. The golf ball material of the invention is a low-hardness material. Golf balls in which an injection molding of the golf ball material is used as a cover material have an excellent rebound and durability.