84results about How to "Maintain dimensional stability" patented technology

An improved, conductive, polymeric composition comprises a polymeric resin; an electrically conductive filler system comprising small carbon fibers and either carbon powder or fibrous non-conductive filler or a combination of both. The amount of the conductive filler system utilized is dependent upon the desired electrical conductivity (surface and volume conductivity or resistivity) while preferably preserving intrinsic properties of the polymeric resin such as impact, flex modulus, class A finish, and the like. The conductive articles made from these compositions can therefore be used for electromagnetic shielding, electrostatic dissipation or antistatic purposes in packaging, electronic components, housings for electronic components and automotive housings.

A method and laser system effect rapid removal of material from a workpiece by applying heating energy in the form of a light beam to a target location on the workpiece to elevate its temperature while maintaining its dimensional stability. When the target portion of the workpiece is heated, a laser beam is directed for incidence on the heated target location. The laser beam preferably has a processing laser output that is appropriate to effect removal of the target material from the workpiece. The combined incidence of the processing laser output and the heating energy on the target location enables the processing laser output to remove a portion of the target material at a material removal rate that is higher than the material removal rate achievable when the target material is not heated.

The present invention includes a blend composition comprising at least one coupled propylene polymer and at least 55 weight percent of at least one ethylene polymer, based on the total weight of the coupled propylene polymer and the ethylene polymer. The invention also includes methods for making the coupled propylene polymer and methods for making the blend composition. The present invention further includes films made from the blend composition.

The invention discloses a high-temperature-resisting composite isolation film which is suitable to be used as an isolation film in a lithium ion battery, and a preparation method thereof. The invention aims at solving the problem in the existing lithium ion battery that the isolation film has poor high-temperature resistance, so that thermo-runaway can occur. The high-temperature-resisting composite isolation film provided by the invention is prepared through dry compound of a polyphenylene sulfide film and a polyolefin micro-porous film. A polyphenylene sulfide film-casting mother liquor is subjected to on-line extrusion and film casting; an obtained film is subjected to dry compound with the polyolefin micro-porous film; and an obtained composite film is subjected to extraction, washing, and drying, such that the high-temperature-resisting composite isolation film is prepared. The high-temperature-resisting composite isolation film provided by the invention can resist a high temperature of 250 DEG C. The film is especially suitable to be applied in lithium ion batteries, and is suitable to be applied as an isolation film in other chemical storage batteries and super-capacitors.

The present invention relates to an oral drug delivery system with biphasic release characteristics comprising a porous matrix comprising at least one drug substance, sugar(s), a release retarding polymer, gas generating components and optionally, pharma-ceuti-cally acceptable auxiliary components wherein the pharmaceutical composition further comprises a coating of said drug substance. The pharmaceutical composi-tion, either in the form of pellets (multiparticulate or single unit dosage form), beads, granules, capsules or tablets, is retained in the stomach while selectively delivering the drug(s) at gastrointestinal levels and upper parts of the small intestine over an extended period of time. The release of the drug from the said pharmaceutical composition is characterized by a biphasic release profile of the drug substance, which exhibits both immediate and controlled release characteristics.

A flexible body cleansing brush with angularly-adaptable head is provided having an elongated, tubular body with a rubber handle positioned at one end, and an applicator/cleansing sponge located at an opposite end. A flexible elastomeric tubular coupler flexibly adjoins a primary arm to an extension arm. The flexible elastomeric coupler allows the extension arm to move pivotally, with unlimited angular relation with respect to the primary arm. The applicator/cleansing sponge is fabricated of a polysulfone/polyurethane conjugate foam which allows the sponge to retain dimensional stability when in contact with a cleansing agent, and is also durable.

A substrate has embossed thereon a plurality of shaped recesses of a predetermined precise geometric profile, each recess having a flat bottom surface having a major dimension of about 1000 μm or less, the substrate being capable of undergoing a thermal cycle of about one hour at about 150° C. while maintaining about ±10 μm or less dimensional stability of the embossed shaped indentations, and wherein the substrate comprises an amorphous thermoplastic material. During the thermal cycle the substrate has an elastic modulus greater than about 10¹⁰ dynes/cm² and a viscoelastic index of less than about 0.1.

A high profile coil with an overall height in a range of 6¾ to 7½ inches maintains axially alignment under compression. A high profile innerspring constructed with the high profile coils can be baled with other high profile innersprings in a baling machine without spin-out or lateral distortion. On-axis of compression of the coils under various loading conditions avoids contact with adjacent coils in an innerspring.

Soil-free living roof and wall systems comprising a living layer of Bryophytes, Lichen, And Vascular Epiphytes (BLAVE) on the surface of a thin, light-weight, flexible, fire-resistant mat of mineral wool having a density in the range of about 6-12 lbs/cu ft and thickness in the range of about ⅜″ to about ¾″. Mats are provided in modular units on the order of 2′×4′; no irrigation or growth medium is used. The mats are adhered to a roof or wall with adhesive or mastic, or may be secured with fasteners. In the preferred embodiment, modular units include flexible mineral wool mats over a base sheet of non-woven plastic fibers, on the order of from 2-4 mm thick, and a wide-mesh plastic netting over the BLAVE layer, sewn through to the base layer. Methods of mat module manufacture, innoculant mix production, installation and cultivation/propagation of BLAVE are disclosed.

A fender for absorbing forces generated from an impact includes a depending attachment flange which comprises a vertically aligned section depending from an exterior portion of the fender and a horizontally aligned section depending from the vertically aligned section adapted for mounting to a vehicle wherein the vertically aligned section includes vertically aligned section including a plurality of reinforcing sections for increasing the stiffness of the vertically aligned section and a plurality of openings for reducing the stiffness of said vertically aligned section wherein each of said openings is positioned adjacent a respective reinforcing.

A thermoplastic filament comprising multiple polymers of differing flow temperatures in a geometric arrangement and an interior channel containing a structural or functional thread therein is described. A method for producing such a filament is also described. Because of the difference in flow temperatures, there exists a temperature range at which one polymer is mechanically stable while the other is flowable. This property is extremely useful for creating thermoplastic monofilament feedstock for three-dimensionally printed parts, wherein the mechanically stable polymer enables geometric stability while the flowable polymer can fill gaps and provide strong bonding and homogenization between deposited material lines and layers. These multimaterial filaments can be produced via thermal drawing from a thermoplastic preform, which itself can be three-dimensionally printed. Furthermore, the preform can be printed with precisely controlled and complex geometries, enabling the creation of a filament or fiber with an interior thread contained within the outer, printed filament or fiber. This thread adds structural reinforcement or functional properties, such as electrical conductivity or optical waveguiding, to the filament.

The invention discloses bionic thermostatic response type intelligent composite optical glass, which is formed via arranging active ingredients of polymer colloid capable of producing reversible nano-scale phase separation type temperature responses at the critical temperature between optical glass materials. When the temperature is lower than the critical temperature, the bionic thermostatic response type intelligent composite optical glass has a good light transmission performance (the light transmittance with the ultraviolet wavelength being 200-380nm is less than 1 percent, and the light transmittance with the wavelength being 380-2500nm is more than 60 percent); and when the temperature is higher than the critical temperature, the bionic thermostatic response type intelligent composite optical glass is opaque (the light transmittance with the ultraviolet wavelength being 200-380nm is less than 1 percent, and the light transmittance with the wavelength being 380-2500nm is less than 10 percent. The intelligent composite optical material is formed based on the nano phase separation technology and can be used for 5-10 years continuously and normally at the outdoor temperature of minus 20 DEG C to 80 DEG C, the energy consumption can be reduced, carbon emissions can be reduced, and the material has broad market prospects.

The present invention is directed to a combination horseshoe and impact pad that dampens the shock of impact and prevents impact pad distortion when the hoof strikes the ground. The impact pad includes a retainer member fixed to the hoof and bonded to the horseshoe top surface along the toe portion of the hoof, and a liquid cast dual-hardness polyurethane cushion member bonded to the remaining horseshoe top surface and coupled to the retainer member so that the retainer member provides a barrier that prevents the cushion member from distorting when the hoof strikes the ground.

The present invention provides a method of manufacturing a multilayer wiring substrate, which can preserve the dimensional stability of a conductor pattern at a fine pitch, solve the restriction on a process from the viewpoint of material selection, and further reduce a manufacturing cost, and a multilayer wiring substrate. A second wiring substrate formed on a supporting sheet made of metal and an adhesive layer are partially stacked on a predetermined region of a first wiring substrate by using the supporting sheet. After the lamination of the second wiring substrate, the supporting sheet is finally etched and removed. The second wiring substrate is stacked only on the portion required to be multilayered on the first wiring substrate to thereby reduce the amount of the construction material of the second wiring substrate.

The present invention describes composite rods keeping two elements apart a determined distance carrying the loads between them, such as railways, industrial premises, etc. Besides, the manufacturing method thereof and the tool involved in this process are also described.

The invention discloses a glass fiber reinforced nylon 6-polyethylene terephthalate alloy material and a preparation method thereof which can be applied in the industries of electric tools, automobiles, electronics and electrics and the like, and belongs to the technical field of macromolecular materials. The alloy material is prepared from the following raw materials in percentage by weight: 44 to 55 percent of nylon 6 resin (PA6), 4 to 12 percent of polyethylene terephthalate (PET), 24.5 to 44.6 percent of glass fiber, 2 to 10 percent of compatibilizer, and 0.1 to 0.5 percent of antioxidant. By adding the homemade compatibilizer in certain ratio in the glass fiber reinforced nylon 6-polyethylene terephthalate and changing the ratio of the PA6, the PET and the compatibilizer, high impact resistance and toughness can be maintained, and dimensional stability and climate resistance can also be kept.

Laminable microporous polymer webs with good dimensional stability are disclosed herein. Methods of making and using laminable microporous polymer webs with good dimensional stability are also disclosed herein.

The invention provides a method for forming a conductive film including: applying energy to a surface of a base material including a polyimide having at least one structural unit represented by Formulae (1) or (2) and having a polymerization initiating site in a skeleton thereof to generate an activation site on the surface of the base material; forming a graft polymer that directly bonds to the surface of the base material and that interacts with either an electroless plating catalyst or a precursor thereof by using the activation site as a starting point; applying either an electroless plating catalyst or a precursor thereof to the graft polymer; and electroless plating.

• • R¹ represents a bivalent organic group. R² represents one of Formulae (3) to (6).
  • R³, R⁴, R¹ and R⁵ independently represent a bivalent organic group.

A balanced dimensionally stable laminate uses a web carrier which is removably attached to a layer of the laminate during lamination and processing. The web carrier maintains dimensional stability of the layers of the laminate during lamination and processing and after removal of the web carrier. The web carrier is removed if at all only after the laminate is formed and processed. The bonding force of the web carrier with at least one of the polymers layer resists forces which would otherwise dimensionally distort the layers of the laminate or design features thereof during lamination, particularly in thermal roll-forming lamination. The layers of the laminate, which may include print and texture design features, remain dimensionally stable after removal of the web carrier. The web carrier can be removed at any time prior to or after final application of the laminate to a substrate.