摘要:
Glass-fiber mats for lead-acid batteries are described. The glass-fiber mats may include a plurality of glass fibers held together with a binder. The binder may be made from a binder composition that includes (i) an acid resistant polymer, and (ii) a hydrophilic agent. The hydrophilic agent increases the wettability of the glass-fiber mat such that the glass-fiber mat forms a contact angle with water or aqueous sulfuric acid solution of 70° or less. Also described are methods of making the glass-fiber mats that include applying a binder composition to the glass fibers, and including a hydrophilic agent in the glass fiber mat that increases the wettability of the mat. The hydrophilic agent may be added to the binder composition, applied to the glass-fiber mat, or both.
摘要:
A valve pin in an injection molding system having an axis and comprising: a first body portion formed into a stem that is comprised of a first selected metal material, the stem comprising an elongated shaft having an upstream end interconnected to an actuator and a downstream end, a second body portion that is formed integrally together with the stem and is comprised of a second selected material different from the first material, the second body portion formed together with and extending distally from the downstream end of the stem into a distal-most extending tip end that is integral or unitary with the stem, the second selected material having a substantially greater degree of resistance to corrosion or wear or abrasion than the first selected material, the distal-most extending tip end being formed into a geometry or configuration that is complementary to a preselected geometry or configuration of a gate such that when the valve pin is moved into a gate closed position the distal-most extending tip end engages an interior surface of the gate to prevent injection fluid from flowing through the gate.
摘要:
A composite member includes a metal sheet having a bent portion formed by bending, and a resin member joined to at least a part of the bent portion. The metal sheet includes an opening provided on an inner side of the bent portion, and a tapered recess that tapers off from an outer side of the bent portion toward the opening. The resin member includes an inner resin part filled in the recess, and an exposed resin part provided to be continuous with the inner resin part and to extend to an inner surface of the bent portion through an edge portion of the opening.
摘要:
An apparatus (1;2) for removing an ophthalmic lens from a mold half (3;4), comprises a ring member (10;20) movable towards and away from the mold half (3;4), the ring member (10;20) comprising a central opening (103;203) and a plurality of nozzles (100;200) circumferentially distributed about the ring member (10;20), each nozzle (100;200) having an outlet opening directed towards the mold half (3,4) as the ring member (10;20) is placed on the mold half (3;4), and a gripper member (11;21) arranged to be movable towards and away from the mold half (3;4) through the central opening (103;203) of the ring member (10;20).
摘要:
Polymer membranes, especially as used for water filtration processes, are effectively stabilized against detrimental effects of acids, bases and/or oxidizing agents commonly used for chemically enhanced backwash by incorporation of an oligo- or polyurethane of the formula (I) wherein k and n independently are numbers from 1 to 100, m is from the range 0-100, (X) is a block of formula (II) and (Y) is a block of the formula (III), (A) is a residue of an aliphatic or aromatic diisocyanate linker, (B) is a residue of a linear oligo- or polysiloxane containing alkanol end groups, and optionally further containing one or more aliphatic ether moieties, and (C) is an aromatic oligo- or polysulfone block; or a mixture of such oligo- or polyurethanes.
摘要:
A composite structure with high pressure resistance that is suitable for a flow channel is produced by reducing the number of components while maintaining the excellent chemical resistance and high stress tolerance inherent to a glass substrate and a resin substrate. A glass substrate surface is modified with a hydrolyzable silicon compound, and the glass substrate is brought into contact with the resin substrate. Subsequently, the contact surface between the glass substrate and the resin substrate is heated to a temperature from the glass transition temperature to the pyrolysis temperature of the resin substrate, eliminating gaps between the glass substrate and the resin substrate to bring them into close contact with each other, and causing chemical binding or anchor effects between the glass substrate and the resin substrate via the hydrolyzable silicon compound. Thus, the glass substrate and the resin substrate are firmly fixed to each other.
摘要:
A terminal fitting includes an electric wire end connecting part that crimps an end portion of an electric wire, and a protruding part that is provided on the electric wire end connecting part. The protruding part interferes with an inner wall which forms a cavity of a main body of a metal mold when the electric wire end connecting part being deformed from an appropriate position is set in the cavity, and corrects the electric wire end connecting part into the appropriate position by a pressing force which occurs due to the interference of the protruding part and the inner wall of the cavity.
摘要:
A composite material having reinforcing fibres and a matrix of matrix material surrounding the reinforcing fibres. The matrix material contains a resin and the reinforcing fibres contain polyphenylene sulfide.
摘要:
The present invention provides a polyester foamed sheet composed of a resin composition comprising 50 to 100 weight % of a polyalkylene terephthalate, wherein the resin composition has an isothermal crystallization peak time of 5 to 60 seconds at any temperature of 100 to 150° C., and wherein the sheet has (A) an apparent density of 0.05 to 1.25 g/cm3 and (B) a temperature at which an exothermic peak derived from crystallization is observed of 0 to 150° C. when thermal analysis is performed using an input compensation type differential scanning calorimeter.
摘要翻译:本发明提供一种由包含50-100重量%的聚对苯二甲酸亚烷基酯的树脂组合物组成的聚酯发泡片,其中该树脂组合物在100至150℃的任何温度下具有5至60秒的等温结晶峰时间, 并且其中所述片材具有(A)0.05至1.25g / cm 3的表观密度和(B)观察到来自结晶的放热峰的温度为0至150℃。当 使用输入补偿型差示扫描量热仪进行热分析。
摘要:
The expanded product of the present invention is an expanded product having a density of from 0.02 to 0.7 g/cm3, which is obtained by expanding ultra-high-molecular-weight polyethylene having a viscosity average molecular weight of from 300,000 to 10,000,000. This expanded product can be prepared by adding carbon dioxide to ultra-high-molecular-weight polyethylene in the molten state in an extruder, and expanding the resin by extrusion such that each of the surface temperature and the central part temperature of the resin immediately after discharge from the die may be a predetermined temperature, while at the same time setting the residence time and pressure of the resin at the die section to specific values. Based on these, the invention provides an expanded product with good external appearance, having a skin layer to which the functions such as light weight, insulating property, sound absorption, low dielectric constant, impact absorption, flexibility and the like can be imparted without significantly deteriorating the excellent features of abrasion resistance, self-lubrication, impact strength, cryogenic properties and chemical resistance that are inherent to ultra-high-molecular-weight polyethylene; and a process for preparation of the expanded product stably.
摘要翻译:本发明的发泡产品是通过使具有粘均分子量的超高分子量聚乙烯发泡而获得的密度为0.02-0.7g / cm 3的发泡产品 从30万到10,000,000。 该膨胀产物可以通过在挤出机中以熔融状态向超高分子量聚乙烯中加入二氧化碳,并通过挤出使树脂膨胀,使得树脂的表面温度和中心部分温度立即在 从模具排出可以是预定温度,同时将树脂在模具部分的停留时间和压力设定为具体值。 基于这些,本发明提供了具有良好外观的膨胀产品,其具有皮肤层,能够赋予诸如重量轻,绝缘性能,吸声性,低介电常数,冲击吸收性,柔软性等功能的表皮层 劣化超高分子量聚乙烯固有的耐磨性,自润滑性,冲击强度,低温性能和耐化学性的优异特征; 以及稳定地制备膨胀产品的方法。