44results about How to "Increase tenacity" patented technology

A coating composition, in both its uncrosslinked and crosslinked forms, for use in delivering a medicament from the surface of a medical device positioned in vivo. Once crosslinked, the coating composition provides a gel matrix adapted to contain the medicament in a form that permits the medicament to be released from the matrix in a prolonged, controlled, predictable and effective manner in vivo. A composition includes a polyether monomer, such as an alkoxy poly(alkylene glycol), a carboxylic acid-containing monomer, such as (meth)acrylic acid, a photoderivatized monomer, and a hydrophilic monomer such as acrylamide.

The invention discloses a glass fiber produced by using waste glass as a raw material and a preparation method thereof, and particularly relates to the technical field of the recycling of glass. The glass fiber is prepared from the following raw materials in parts by weight: 30 to 50 parts of the waste glass, 10 to 15 parts of quartz sand, 10 to 12 parts of sodium sulfate, 5 to 10 parts of calcite, 5 to 12 parts of zircon sand and 2 to 20 parts of sodium carbonate. The preparation method comprises the following steps of (1), pretreatment of the waste glass; (2), confecting of a mixed material;(3), melting; (4), clarification and preparation of the glass fiber. According to the preparation method, the glass fiber is produced by using the waste glass as the raw material; not only can adverse influences generated by the waste glass to an environment be reduced, but also a resource can be recycle; favorable economic and social benefits are obtained; moreover, the preparation method is simple, and the popularization and the application are suitable.

Shaped parts of ultra high molecular weight polyethylene (UHMWPE) are made by a process comprising melt processing, wherein a) the UHMWPE has a weight average molecular weight (Mw) of at least 1*106 g / mol, b) during the shaping the storage plateau modulus of the UHMWPE (G*) is kept at a value of at most 1.5 MPa, c) whereafter, before the cooling, the G* is raised to its final value. The shaped parts may advantageously be used in medical applications, e.g., as an element of a hip or knee prosthesis.

Disclosed is an epoxy resin composition for printed circuit board, which includes (A) an epoxy resin comprising a dicyclopentadiene type epoxy resin; (B) a copolymer of styrene and maleic anhydride as a curing agent; (C) a curing accelerator; (D) an optional silane dispersing agent; (E) an optional phosphorous-containing flame retardant; (F) an optional toughening agent; and (G) an optional inorganic filler.

The invention related to hyaluronic derivative according to formula (I), methods of preparation thereof and a hydrogel prepared obtained from the derivative and methods of preparation thereof. The hydrogel can be used in tissue engineering, cosmetics, medicine or regenerative medicine such as the forming of scaffolds for the treatment of articular cartilage or bone tissue defects.

The invention relates to a preparation method of dried day lilies. The preparation method comprises the following steps of (1) picking day lilies; (2) pretreating the picked day lilies; (3) cooking the pretreated day lilies; (4) twisting the day lilies treated in the step (3), after twisting is completed, performing sealing at room temperature, and performing static fermentation for 12-18h; and (5) performing drying. According to the preparation method disclosed by the invention, water-soluble glucan and a reduction type glutathione aqueous solution are used for performing pretreatment, and then high-temperature rapid-scalding and cooking are performed, so that technical obstacles are well overcome; the water-soluble glucan can form a layer of a protective film on the surfaces of the day lilies, and can generate substance cross-linking with the histocyte of the day lilies, so that the tenacity of the day lilies in subsequent treatment can be enhanced, the day lilies are not liable to crush when being rolled, and the quality of the day lilies is good; and the reduction type glutathione is also uniformly distributed in the protective film, the reduction type glutathione and the protective film are in synergistic reaction to avoid polyphenol oxidase oxidation, after practice, people find that the reduction type glutathione and the protective film can efficiently prevent the day lilies from changing color during draining and steam rapid-scalding, and the tenacity of the day lilies after rapid-scalding and cooking is still high.

A protective textile sleeve and method of construction thereof is provided. The sleeve includes a circumferentially continuous wall extending lengthwise along a longitudinal axis between opposite ends. The wall has a first section formed from a non-heat-shrinkable, non-elastic yarn and a second section formed from one of a heat-shrinkable or elastic yarn. The first section extends lengthwise between the opposite ends and spans (X) degrees about the circumference of the wall between opposite lengthwise extending edges while in an unshrunken or stretch. The second section extends lengthwise between the opposite ends and spans (360-X) degrees about the circumference of the wall. The heat-shrikable or elastic yarn of the second section extends continuously as an uninterupted yarn between the opposite edges of the first section.

A protective textile sleeve and method of construction thereof is provided. The sleeve includes a circumferentially continuous wall extending lengthwise along a longitudinal axis between opposite ends. The wall has a first section formed from a non-heat-shrinkable, non-elastic yarn and a second section formed from one of a heat-shrinkable or elastic yarn. The first section extends lengthwise between the opposite ends and spans (X) degrees about the circumference of the wall between opposite lengthwise extending edges while in an unshrunken or stretch. The second section extends lengthwise between the opposite ends and spans (360-X) degrees about the circumference of the wall. The heat-shrikable or elastic yarn of the second section extends continuously as an uninterupted yarn between the opposite edges of the first section.

The present invention provides a thin film package structure of an organic light emitting diode (OLED) display, comprising an inorganic layer and an organic layer, wherein the inorganic layer and the organic layer are formed on a substrate, and the inorganic layer and the organic layer are alternately disposed, wherein the inorganic layer comprises an inorganic polymer doped with metal nanoparticles.

The sealant injector for molding a display frame is provided for extruding the sealant out of the cavity, the large impurity particles could be insulated from the filtrating holes for preventing the mixing particles or the air bubble forcing out from the spray nozzle. The extrusion sealant could be more uniform. The sealant could be coated on the base board with the filtering and forcing. Accordingly, it would increase the continuation, the stability, the strength and the tenacity of the sealant and then improve the rate of good products. On the process of filtering and extruding together, it could reduce the molding time and improve the manufacture efficiency. The present invention also provides a method for injection molding a display frame using the sealant injector.

The present invention relates to plastic moldings that are prepared from optionally filled polyurethanes. The plastic molding of the present invention exhibit high tenacity, flexural strength and heat stability. This invention also relates to a process for the preparation of these plastic moldings and specifically to a process for the production of large parts comprising these plastic moldings.

A composite fireproof board has a structure that includes, from top to bottom, a bottom layer, a lower reinforcement mesh layer, a middle layer, an upper reinforcement mesh layer, and a surface layer. The middle layer includes an organic frame and an inorganic fireproof material filled within the frame. The frame is provided with fixed grooves on edges adjacent to the fireproof material, and is further provided with through holes.

The invention aims at providing an automatic dough mixer which comprises a base, a dough pressing cylinder and a dough mixing cylinder, the dough pressing cylinder and the dough mixing cylinder are arranged on the base, a suspension plate is arranged on the base in a lifting mode, a dough mixing device and a dough hammering device are arranged on the suspension plate, the dough mixing device comprises a motor and a dough mixing frame, the motor is fixedly installed on the suspension plate and located over the dough mixing cylinder, a cross arm is fixedly installed at a transmission shaft of the motor, a rotating shaft is rotatably installed at the end of the cross arm in the vertical axial direction, the dough mixing frame is fixedly installed at the bottom end of the rotating shaft, so that eccentric rotating connection of the dough mixing frame relative to the transmission shaft of the motor is achieved, and the motor for driving the rotating shaft to rotate is arranged on the cross arm; the dough hammering device comprises a hammer head and four side pressing pieces, the hammer head is longitudinally and slidably arranged on the suspension plate, the side pressing pieces are slidably installed in the dough pressing cylinder in the radial direction, and the four side pressing pieces are annularly distributed.