56 results about "Percent elongation" patented technology

A thermoplastic elastomer film includes a thermoplastic elastomer and a filled semi crystalline predominantly linear polymer. The film includes between about 25 and 70 weight percent filler, between about 5 and 30 by weight percent semi-crystalline linear polymer, and between about 15 and 60 by weight elastomer. The filler is closely associated with the semi-crystalline linear polymer. The elastic film demonstrates a load loss value at a 50 percent elongation of less than about 50 percent, and a breathability of greater than about 100 g/m²/24 hours.

A polymer material useful for manufacturing an intraocular lens (IOL) suitable for insertion through an IOL inserter barrel having an inner diameter of less than 3 mm is provided. Specifically, acrylic-silicone hybrids having a tensile strength of approximately 100 psi to 400 psi and a percent elongation at break of between 50% and 400% are disclosed.

A breathable, elastic film/support layer laminate includes a thermoplastic elastomer film sheet of a thermoplastic elastomer and a filled semi crystalline predominantly linear polymer. The film includes between about 25 and 70 weight percent filler, between about 5 and 30 by weight percent semi-crystalline linear polymer, and between about 15 and 60 by weight percent elastomeric polymer. The filler is closely associated with the semi-crystalline linear polymer. The film demonstrates a load loss value at a 50 percent elongation of less than 50 percent, and a breathability of greater than 100 g/m²/24 hours and is laminated to a nonwoven layer.

An alpha/beta titanium alloy comprising, in percent by weight based on total alloy weight: 3.9 to 4.5 aluminum; 2.2 to 3.0 vanadium; 1.2 to 1.8 iron; 0.24 to 0.30 oxygen; up to 0.08 carbon; up to 0.05 nitrogen; up to 0.015 hydrogen ; titanium; and up to a total of 0.30 of other elements. A non-limiting embodiment of the alpha/beta titanium alloy comprises an aluminum equivalent value in the range of 6.4 to 7.2, exhibits a yield strength in the range of 120 ksi (827.4 MPa) to 155 ksi (1,069 MPa), exhibits an ultimate tensile strength in the range of 130 ksi (896.3 MPa) to 165 ksi (1,138 MPa), and exhibits a ductility in the range of 12 to 30 percent elongation.

The present invention provides exterior building products, such as roofing and siding, shake, shingles, siding, sheathing, panels, planks, vertical siding, soffit panels, fencing, decking, fascia, corner posts, column corners and trim boards in which a plurality of cementitious layers are provided with an improved interlaminar bond by employing a resinous bond promoter, a rheological agent, mechanical means to distribute fibers in a direction which is perpendicular to the machine direction so as to bridge between layers in the product, or a combination thereof. These techniques help to increase interlaminar bond strength to improve the mechanical properties of the product. When certain resinous bond promoters are used, the additional benefits of water absorption resistance and pigmentation throughout the product can be provided with minimal expense. Improvements in interlaminar bond strength of about 10–46% were observed with a percent elongation improvement of about 7%.

A cementitious compound provides a brittle undercoat for making a surface-mounted crack sensor on a surface. A low percent elongation and low tensile strength of the cementitious compound have proven valuable in ensuring that cracks in the underlying surface are transmitted through the undercoat so that a trace of conductive ink or paint on the undercoat more reliably detects the crack.

An alpha-beta titanium alloy comprises, in weight percentages: an aluminum equivalency in the range of 2.0 to 10.0; a molybdenum equivalency in the range of 0 to 20.0; 0.3 to 5.0 cobalt; and titanium. In certain embodiments, the alpha-beta titanium alloy exhibits a cold working reduction ductility limit of at least 25%, a yield strength of at least 130 KSI (896.3 MPa), and a percent elongation of at least 10%. A method of forming an article comprising the cobalt-containing alpha-beta titanium alloy comprises cold working the cobalt-containing alpha-beta titanium alloy to at least a 25 percent reduction in cross-sectional area. The cobalt-containing alpha-beta titanium alloy does not exhibit substantial cracking during cold working.

This invention disclosed a pneumatic tire for use on aircrafts having a tread, a crown reinforcement, and a radial carcass reinforcement. The carcass reinforcement has at least one axially inner ply of textile cord wound around a pair of bead cores, at least one axially inner ply being wound around the bead core in each bead from inside to the outside forming outside turn-ups and at least one axially outer ply of textile cords extending from bead to bead along the turn-ups of the at least one axially inner ply. Each bead has an elastomeric apex filler. The at least one axially inner ply or at least one axially outer ply has merged cords having a percent elongation at break of 12% to less than 20% and a break strength greater than 1050 N with a linear density of greater than 9,000 dtex. The preferred cord has fibers of polyamide and nylon. The cord fiber of polyamide is an aromatic polyamide 3300/2 construction. The cord fiber of nylon is a 1880/1 nylon construction. The preferred cord construction is 6.7 (A)+4.5 (N)/6.7 TPI. The cord reinforcement is preferably used in the ply layers or strips of the crown reinforcement as well.

A flexible fiber-reinforced composite material is manufactured by impregnating a fiber reinforcement material with a non-epoxy matrix material. Subsequently, the impregnated fiber reinforcement material is dried and cured, resulting in a flexible fiber-reinforced composite material that exhibits a tensile modulus between 10 MPa and 42 MPa at 20 percent elongation.

There is provided segmented copolymer compositions and methods of making the same. The composition has one or more α,ω (alpha, omega) amine or α,ω (alpha, omega) hydroxyl terminated polysiloxane first soft segments having an average molecular weight of between about 2500 grams per mole to about 10,000 grams per mole. The composition further has one or more diisocyanate species. The composition further has one or more low molecular weight diol or diamine chain extenders. The composition has a high flexibility at an environmental temperature of down to about −100 degrees Celsius, and further has a percent elongation of greater than about 250%, a high tensile strength of greater than about 25 MPa (megapascals), and a single low glass transition temperature (Tg) in a range of from about −60 degrees Celsius to about −110 degrees Celsius.

An electrolytic copper foil with low roughness surface whose surface roughness (Rz) is 2.0 μm or less, the surface uniformly provided with low roughness without uneven surge, which electrolytic copper foil exhibits a percent elongation of 10.0% or higher at 180° C. This electrolytic copper foil with low roughness surface can be obtained by a process for producing an electrolytic copper foil, comprising passing a direct current between an insoluble anode consisting of a titanium plate coated with a Platinum Group element or oxide thereof and a titanium drum as a cathode counter to the anode in an electrolyte of an aqueous solution of sulfuric acid/copper sulfate, wherein the electrolyte contains an oxyethylene surfactant a polyethyleneimine or derivative thereof, a sulfonate of active organosulfer compound and chloride ions.

The invention provides high-strength duralumin alloy applied to a mobile phone shell and a preparation method of the high-strength duralumin alloy. The used high-strength duralumin alloy comprises thefollowing components in percentage by mass: 5.00 to 10.00 percent of Zn, 1.20 to 6.00 percent of Mg, 0.03 to 0.50 percent of Mn, 0.03 to 4.00 percent of Cu, 0.01 to 0.25 percent of Zr, 0.01 to 0.30 percent of Cr, 0.01 to 0.20 percent of Ti and the balance of Al and other inevitable impurities. After thermal treatment, a plate made from the high-strength duralumin alloy provided by the invention has excellent comprehensive performances, namely the tensile strength is 400 MPa to 500 MPa, the yield strength is 380 MPa to 480 Mpa, the percent elongation is 11% to 18%, the conductivity is 25% to 44% IACS, and the rigidity is 175 HV to 220 HV.

Coatings for a surface, coating compositions, articles coated with a coating, and methods of coating are disclosed in which the coating comprises a polymer blend of polyurethane as a major component and at least one other polymer P2 having in comparison to polyurethane a higher peel strength to the surface to be coated, a higher percent elongation at break when cured, and a lower glass transition temperature, the polymer blend having been cured to form a peelable and flexible layer having a textured surface.

A film-forming composition comprising a hydrocolloid, a plasticizer, and water is described. A process and apparatus for producing a non-gelatin film comprising a hydrocolloid, a plasticizer, and water is also disclosed. The process includes combining at least one non-gelatin hydrocolloid, water, and at least one plasticizer into a substantially homogeneous film-forming composition comprising at least about 40 percent water by weight. A substantial portion of the water is then extracted from the film-forming composition to form a dried portion having a water content of less than or equal to about 25 percent by weight. The dried portion of the film-forming composition is formed into a film. A film produced according to the process preferably has a tensile strength at rupture of at least about 0.4 N/mn², and a percent elongation of at least about 50 percent at rupture at room temperature. An apparatus for performing the process is also described, as well oral dosage forms encapsulated or enrobed in the produced film.

A spun-blown non-woven web is disclosed which is formed from a plurality of fibers formed from a single polymer having an average fiber diameter ranging from between about 0.5 microns to about 50 microns; a basis weight of at least about 0.5 gsm; a tensile strength, measured in a machine direction, ranging from between about 20 g to about 4,200 g; a ratio of tensile strength, measured in the machine direction, to basis weight of at least about 20:1; and a ratio of percent elongation, measured in the machine direction, to fiber diameter of at least about 15.

There is provided a flexible, low temperature, filled composite material composition and method of synthesizing the composite material composition. The composite material composition has a segmented copolymer elastomer having an α,ω-(alpha, omega)-dihydroxy terminated polysiloxane species, a diisocyanate species, and an amine or hydroxy terminated chain extender. The composite material composition further has a solid particulate filler. The composite material composition has a high flexibility at a temperature of down to about −100 degrees Celsius, has a percent elongation of greater than about 100%, and has a tensile strength of greater than about 5 MPa (megapascals).

A method of managing a tubular having a seam that exhibits signs of hydrogen induced cracking that extends radially along the seam, and which is different from classic step-wise cracking. Included in the method is evaluating the strength and ductility specimens taken from the tubular that have been hydrogen charged; and which provides an indication if the seam is susceptible to hydrogen embrittlement. The strength is evaluated by comparing tensile strength of the hydrogen charged specimen with that specified in an industry standard, such as API 5L. The ductility is evaluated based on comparing percent elongation of the hydrogen charged specimen with percent elongation of a specimen obtained from the tubular and not hydrogen charged. Tubulars with seams found susceptible to hydrogen embrittlement would not be put into sour service, whereas those found not susceptible to hydrogen embrittlement can be put in a sour service.