2438results about How to "Improve tear resistance" patented technology

A flame retardant, intumescent pressure sensitive adhesive (PSA) composition for EMI shielding gaskets, tapes, wraps, and the like. The composition is formulated as an admixture of: (a) a PSA component; (b) a halogenated first flame retardant component; (c) a metal-based second flame retardant component; and (d) a filler component of expandable, intercalated graphite particles. In a representative embodiment the PSA component (a) is acrylic-based, the halogenated first flame retardant component (b) is a polybrominated diphenyl compound such as decabromodiphenyl oxide or decabromodiphenyl ether, the metal oxide-based second flame retardant component (c) is antimony oxide, antimony trioxide, or antimony pentoxide, and the filler component (d) is graphite flake.

Some embodiments relate to endoluminal prostheses having a first stent portion and a second stent portion, a main graft body comprising first, second, and third portions, the second portion having a cross-sectional size that is significantly larger than a cross-sectional size of the first or third portions, and also significantly larger than a cross-sectional size of the target vessel. In some embodiments, the first portion of the main graft body can be attached to the first stent portion and the third portion of the main graft body can be attached to the second stent portion. The prostheses can be configured such that the second portion of the main graft body is not directly attached to the first stent portion, the second stent portion, or any other internal support structure. In some embodiments, one or more openings can be formed in the second portion of the main graft body.

An absorbent article is provided, including a barrier layer, a cover layer extending substantially parallel to the barrier layer, and a superabsorbent polymer interposed between the cover layer and the barrier layer. The superabsorbent polymer is adhered to the article in a pattern configured to distribute fluid in the absorbent article, wherein at least one portion extending essentially completely across the absorbent article is substantially devoid of the superabsorbent polymer.

PCT No. PCT / US97 / 17534 Sec. 371 Date Feb. 3, 1999 Sec. 102(e) Date Feb. 3, 1999 PCT Filed Sep. 30, 1997 PCT Pub. No. WO98 / 14133 PCT Pub. Date Apr. 9, 1998A novel dental floss and gum massager made in the form of a strand, a tape or a sheet of polymeric material, said sheet having selectively positioned multiple sized holes for inserting though and holding by the fingers of the hands. The floss provides substantially very little constriction of blood flow surrounding the fingers as the floss is held taught and the peripheral edge of the floss is being manipulated and worked by the gripping, pulling, pushing, deforming, and guilding back and forth actions of the fingers during massaging of the gums and flossing of the teeth.

Novel gels and articles are formed from one or more copolymers having at least one poly(ethylene) components and high levels of one or more plasticizers, said gels having an amount of crystallinity, glassy components, and selected plasticizers sufficient to achieve improvements in one or more physical properties including improved crack propagation resistance, improved tear resistance, improved resistance to fatigue, resistance to catastrophic failure, and exhibiting high strain under elongations not obtainable in amorphous gels which high strain making the gel suitable for use as film layers for artificial muscles.

Natural rubber obtained by a deproteinizing treatment of a natural rubber latex and has a total nitrogen content adjusted in the range of 0.12 to 0.30% by weight and a rubber composition and a pneumatic tire using the natural rubber. The processability of natural rubber can be improved without adverse effects on the physical properties proper to natural rubber. The rubber composition exhibits an improved low hysteresis loss property and improved abrasion resistance and can be advantageously used for the tire case members and the tire tread of pneumatic tires.

The invention relates to an energy-saving high strength aramid fiber conveyer belt and a preparation method thereof. The conveyer belt is composed of a skeleton layer, adhesive glue and an upper-lower cover adhesive laminated structure. Firstly, the skeleton layer employs aramid fiber canvas after dipping treatment to replace a conventional steel wire rope, so that the problems of large weight of the steel wire rope which brings much inconvenience for processes of shaping, installing, maintaining and the like is solved. Secondly, the aramid fiber canvas has structure in broadwise direction, has excellent anti-tear and anti-impact performances, so that phenomena of longitudinal tear and the like of the steel wire rope conveyer belt cab be prevented. Compared with a conventional steel wire rope high strength conveyer belt, the energy-saving high strength aramid fiber conveyer belt has high strength, good corrosion resistance, wear resistance and impact and fatigue resistance, and greatly reduce the weight and thickness of the conveyor belt, so that conveying power energy consumption is saved. The energy-saving high strength aramid fiber conveyer belt is expected to have longer service life and better energy-saving and environment-friendly properties, and is particularly suitable for long-distance material conveyance in industries such as coal mine, metallurgy, mine, etc.

A surgical access device comprising an instrument access channel extending through an instrument seal and a shroud comprising an inverting region disposed distally of the instrument seal exhibits improved tear-resistance of the instrument seal from instrument manipulation, for example, instrument withdrawals. Some embodiments of the inverting region invert through the instrument seal on instrument withdrawal. Some embodiments of the inverting region induce at least a portion of the instrument seal itself to invert on instrument withdrawal.

A surgical access device comprising an instrument access channel extending through an instrument seal and a shroud comprising an inverting region disposed distally of the instrument seal exhibits improved tear-resistance of the instrument seal from instrument manipulation, for example, instrument withdrawals. Some embodiments of the inverting region invert through the instrument seal on instrument withdrawal. Some embodiments of the inverting region induce at least a portion of the instrument seal itself to invert on instrument withdrawal.

The invention discloses a dynamic polymer having a hybrid cross-linked network, and contains common covalent crosslinking and dynamic covalent crosslinking; and the dynamic covalent crosslinking is realized by organic boric acid silicon ester bonds. The dynamic polymer combines the advantages of dynamic covalent organic boric acid silicon ester bonds and a common covalent bond, and by regulation and control of a reactant structure, a dynamic polymer having abundant structure and various properties can be prepared. The dynamic covalent crosslinking in the dynamic polymer has strong dynamic reversibility, the polymer can present function characteristics of stimulation responsiveness and self-repair performance, and the common covalent crosslinking endows certain intensity and stability to the polymer; in addition, the dynamic nature of the organic organic boric acid silicon ester bonds can generate good energy dissipation and energy-absorbing effect, and is capable of toughening, dampingand resisting impact on a material in a specific structure. The dynamic polymer can be used for preparing a shock-absorption material, a shock-resistant protection material, a self-repair material, and a toughness material.

Some embodiments of the present disclosure are directed to endoluminal prostheses having one or more reinforced fenestrations therein. The one or more reinforced fenestrations can have improved sealing capabilities with respect to branch grafts deployed within the fenestrations, improved tear resistance and expandability, and improved pull-out resistance for branch grafts. In some embodiments, the endoluminal prosthesis can have a main graft body defining a flow lumen therethrough, a first opening passing through a wall of the main graft body, and a first support member supported by the main graft body and overlapping an edge of the first opening, the first support member being configured to at least increase the tear resistance of the main graft body adjacent to the first opening. The support member can be stitched or otherwise attached to the main graft adjacent to the fenestration.

A liner holds objects in place within a form for a poured wall. The liner includes a backing sheet and a plurality of foam bed joints arranged in a substantially parallel fashion along a length dimension. A plurality of separate foam head joints are attached along a height dimension, wherein opposing ends of the foam head joints engage adjacent bed joints to define a plurality of regions on the backing sheet for receiving the objects to be cast in the poured wall. Each foam joint has a rounded cross section to form a curved grout line between the objects cast in the poured wall. The foam joints include an outer protective skin to prevent the poured wall material from bonding with the foam cells. A method of forming the liner includes aligning the separate foam bed joints and head joints in a grid and then pressing an adhesive-backed paper sheet against the foam joints.

The invention discloses tread rubber for a large project tire and the large project tire using the tread rubber. The tread rubber for the large project tire consists of (A) tread cap rubber, (B) tread center rubber and (C) tread base rubber. On one hand, the invention adopts rubber matrixes with three different formulas to well solve the problem that an outer layer is easy to overcure if the tread rubber for the large project tire is thick; and on the other hand, the tread rubber prepared by the three formulas of the rubber matrixes can obtain superior equilibrium between abrasion resistance, heat resistance, tear resistance, low heat generation and curing speed.

An absorbent incontinence article (2) has a main part (4) composed of a front area (6) and of a rear area (8) and, lying between these in the longitudinal direction (10), a crotch area (12) that comes to lie between the legs of a user, the main part (4) comprising an absorption body (14), and with mutually separate side portions (16) which are joined to the rear area (8) and / or to the front area (6) on both sides and which extend in the transverse direction (22) across lateral longitudinal edges (20) of the main part (4) and connect the front area (6) and the rear area (8) to each other when the article is applied. To prevent tearing of the side portions, it is proposed that the incontinence article be designed such that the side portions (16) have a reinforcing means (24) which, seen in the transverse direction (22), is designed narrower than a respective side portion (16), and which is provided at least in an area bridging the longitudinal edge (20) of the main part (4), that is to say crosses both a lateral longitudinal edge area of the main part (4) and also a part of the side portion (16) in the transverse direction (22).

A bag including first and second walls having joined first and second opposed side edges, a top end edge, a bottom end edge, and two spaced-apart seal lines adjacent the top end edge of the bag, the improvement defined of a tear-resistant, bag-supporting handle defined with the two spaced-apart seal lines. The handle includes a hand-insertion slit defined of a middle slit portion parallel to the top end edge and the bottom end edge of the bag and perpendicular to the side edges of the bag, and two arcuate end slit portions, a first end slit portion situated at a first end of the middle slit portion proximate to the first side edge of the bag and a second end slit portion situated at a second end of said middle slit portion proximate to the second side edge of the bag. The end slit portions each define an arc greater than or equal to 180 degrees and extend greater than or equal to 0 degrees and less than or equal to 45 degrees of arc below the middle slit portion toward the bottom end edge of the bag.

The present invention relates to improvements in bonding patterns for the attachment of components of disposable absorbent articles. For example, in order to provide attachment of an ear portion to a longitudinal side of the chassis of an article, there may be an attachment area. The attachment area may include an overlapping area of chassis material(s) (outer cover and / or liner materials) and ear portion material. The overlapping areas of chassis material and ear portion material are bonded together in such a way as to include a variegated bond pattern and a uniform bond pattern. The bonding patterns of the invention may also be used to form the side seams and passive side bonds for articles that are donned as pants.

The invention discloses a space netted fabric compound material which comprises a PVC (Poly Vinyl Chloride) top film layer, a space netted fabric layer and a PVC bottom film layer from top to bottom, wherein the space netted fabric layer comprises upper and lower netted fabric layers and a drawn wire; the upper and lower netted fabric layers are arranged in parallel; and the drawn wire is vertically arranged between the upper and lower netted fabric layers. A preparation method for the space netted fabric compound material comprises the following steps: 1) coating paste on the space netted fabric layer; 2) preheating; 3) gluing; and 4) cooling, scrapping edge and coiling. According to the space netted fabric compound material provided by the invention, the space netted fabric layer is arranged between the PVC top film layer and the PVC bottom film layer, so that an air cushion product after being aerated has a smooth surface and a beautiful outline after the space netted fabric compound material is applied to the air cushion product; the bearing capability is excellent and the air cushion product is difficult to explode during an aerating process; and the air cushion product is excellent in elasticity and pressure resistance, due to the middle space netted fabric layer.

A package includes a slide card that is received in an outer sleeve having a false end wall. The false end wall extends between a top wall and a bottom wall to enhance the structural integrity of the outer sleeve. The false end wall provides child resistance in that it prevents a user from manipulating the outer sleeve to inadvertently disengage a locking feature that lockably retains a slide card in the outer sleeve. The false end wall also prevents a user from accessing the slide card through an opening that is created by removing an end wall.

The present invention relates to a rubber composition containing a combination of starch, modified starch and / or starch / plasticizer composite together with selected methylene donor and / or methylene acceptor compounds. The invention also relates to tires having at least one component comprised of such rubber composition. Such tire component can be, for example, its circumferential tread or other component of the tire.

Provided are ethylene-based polymer compositions, articles made therefrom, and methods of making the same. Ethylene-based polymer compositions include linear low density polyethylene prepared with metallocene catalyst, which may optionally have about 5 mole percent or less of monomer units derived from an alpha-olefin comonomer. Ethylene-based polymer compositions include blends of linear low density polyethylene and one or more very low density polyethylene compositions, one or more low density polyethylene compositions, one or more medium density polyethylene compositions, one or more high density polyethylene compositions, one or more differentiated polyethylene compositions, or other conventional polymers. Articles composed of such ethylene-based polymer compositions are prepared according to a process window, e.g., at a specific extrusion rates, which provides favorable physical properties, including tear resistance and dart drop properties. Films prepared according to these techniques exhibit physical properties equivalent to, or superior than, conventional linear low density polyethylenes prepared with Ziegler-Natta catalyst.

A package includes a slide card that is received in an outer sleeve having a false end wall. The false end wall extends between a top wall and a bottom wall to enhance the structural integrity of the outer sleeve. The false end wall provides child resistance in that it prevents a user from manipulating the outer sleeve to inadvertently disengage a locking feature that lockably retains a slide card in the outer sleeve. The false end wall also prevents a user from accessing the slide card through an opening that is created by removing an end wall.

An improved container seal comprises a flexible sealant sheet and a flexible tab sheet bonded thereto. The sealant sheet and tab sheet are of the same size and shape. The sealant sheet has a sealing surface and a first thermoplastic surface, and the tab sheet has an outer surface and a second thermoplastic surface. The first and second thermoplastic surfaces are in opposed, congruent contact with each other, and a portion of the first thermoplastic surface is ultrasonically welded to an opposed portion of the second thermoplastic surface. The ultrasonically welded portions of the thermoplastic surfaces are positioned on the sealant sheet and tab sheet in a manner that allows at least one edge portion of the tab sheet to be lifted away from the sealant sheet, providing a tab member for removing the seal from a container.

A fenestrated graft deployment system, with a delivery catheter having a catheter body, An endoluminal prosthesis having a main graft body, the main graft body having a lumen therethrough and a first opening laterally through a wall of the main graft body. A first guidewire prepositioned within the delivery catheter extending through at least a portion of the catheter body into a main lumen of the endoluminal prosthesis and through the first opening in the wall of the prosthesis when the delivery catheter is in a predeployed configuration. A first fenestration alignment device is configured to extend through at least a portion of the delivery catheter and is configured to be axially moveable relative to the first guidewire. The first fenestration alignment device has an end portion having an outside perimeter configured such that when an end portion of the fenestration alignment device moves toward the first opening of said main graft body the outside perimeter of the first opening is smaller than the outside perimeter of the first fenestration alignment device and prevents it from passing through the first opening and causes the main graft body adjacent to the first opening to move with the end of the first fenestration alignment device to act as alignment tool to allow an operator to align the first opening in the side of the endoluminal prosthesis with an ostium of a target branch vessel into which said first opening is to extend and act as a guide and seal for a subsequently delivered branch graft endoluminal prosthesis.

The invention discloses a gas extraction center divided-flow type grouting and hole sealing device which comprises an extraction pipe, a grouting plug, a left bag and a right bag, wherein the extraction pipe penetrates through the left bag and the right bag, a multifunctional valve is arranged in the extraction pipe, and the left side and the right side of the multifunctional valve are respectively connected with a left flow division pipe and a right flow division pipe; the left flow division pipe and the right flow division pipe are both sheathed on the extraction pipe, and the inner diameter of the left flow division pipe and that of the right flow division pipe are both greater than that of the extraction pipe so as to form a slurry passage among the left flow division pipe, the right flow division pipe and the extraction pipe; and a grouting insertion pipe is inserted into the extraction pipe. Through the gas extraction center divided-flow type grouting and hole sealing device, more effective grouting and hole sealing of drilling holes in the hole sealing section can be realized, and the generation and the propagation of leakage cracks around the drilling holes can be better prevented. The invention also provides a hole sealing method by using the gas extraction center divided-flow type grouting and hole sealing device. Through the method, high stress regions are produced around the drilling holes in the hole sealing section, the permeability of coal around the drilling holes in the hole sealing section is reduced, and the purpose of effectively grouting and sealing the drilling holes in the hole sealing section is realized.

The invention discloses a distortion-resistance wind power generation cable sheath material and a cable. The cable material comprises the following components in weight parts: 100 parts of chlorinated polyethylene, 10-30 parts of amorphism copolymer, 10-20 parts of cold-resistant plasticizer, 40-80 parts of reinforcing filler, 5-15 parts of nanosacle inorganic active agent, 2.5-5 parts of cross-linking agent, 2-5 parts of cross-linking assistant agent, 1-2.5 parts of antioxidant antiager and 10-30 parts of inorganic fire retardant, wherein the amorphism copolymer is a mixture of amorphism polyolefin thermoplastic elastomer and chlorinated polyethylene elastic body; and the nanoscale inorganic active agent is nanoscale zinc oxide and magnesium oxide. The cable of the invention has low-temperature resistance (-60DEG C)and distortion resistance, excellent flexibility, improves the homogenisieren property of the other materials by adding the nanoscale inorganic active materials, improves the molecular structure, has better flexibility because of the uvio-resistance, and has the characteristics of distortion, cold, oil and corrosion resistance and the like.

A multiphase polymeric material comprises a first rigid continuous phase and a second elastic phase dispersed in the first phase. The multiphase polymeric material may be formed into polymeric strips and used to make a cellular confinement system which is suitable for use in cold areas.

The present invention relates to a high-frequency weldable thermoplastic rubber composition, to a method of rendering non-polar thermoplastic rubbers high-frequency weldable, to a high-frequency weldable shaped article obtainable from the composition according to the invention, to a method for manufacturing said shaped articles and to a method of high-frequency welding of said articles. Furthermore, the present invention relates to shaped high-frequency welded articles obtainable by the method according to the present invention.

The invention discloses a processing technology of needle-punched non-woven fabric. According to the processing technology of the needle-punched non-woven fabric, high-strength inflaming retarding polypropylene fibers and inflaming retarding polyester fibers are used as raw materials. The processing technology comprises the steps of unpacking, material mixing, opening, cotton feeding, carding, lapping, drafting, needle punching, hot rolling and coiling. According to the mode, professional equipment and adjustment are utilized for guaranteeing the uniformity and the thickness of lapping of the fibers, cloth with uniform longitudinal and transverse fiber networks is formed by accurate needle punching of three needle punching machines, and the formed non-woven fabric is soft in hand feel, high in strength, small in ductility, light in weight and resistant to abrasion, acid and alkali; due to the fact that stretching resistance and tearing resistance in the longitudinal direction and the transverse direction are improved greatly, the non-woven fabric is good in water washing and dry cleaning effect; meanwhile, due to the waterproof, fireproof, non-toxic and environment-friendly characteristics, the non-woven fabric is widely applicable to the fields of soft sofas, home decoration, car seats, interior trim and the like.

The invention relates to an endless vehicular rubber track designed for extreme cold temperature working environment. The invention particularly relates to such track having a combination of tread, supporting carcass and guide lug components of rubber compositions intended for such purpose.