摘要:
The melt strength is increased and the gloss level is reduced in olefinic TPE compositions through the addition of sufficient amounts of free radical generators (A) and co-curative agents (B). The free radical generators (A) include peroxides, organic peroxides, the persulfates, and the diazo compounds, and mixtures thereof. The co-curative agents (B) includes metal salts of alpha, beta-unsaturated carboxylic acids and alpha, beta-unsaturated carboxylic acids where the pending acid group has been neutralized, or mixtures thereof, and the metals for forming the metal salts of co-curative agent (B) include zinc, lithium, calcium, magnesium, sodium or aluminum, or mixtures thereof.
摘要:
The invention relates to polymer compositions useful as thermoplastic elastomers for extrusion, calendering, blow molding, thermoforming, and foam processing, and to articles made therefrom. Such improved melt strength thermoplastic elastomers include a blend of propylenic resin (A) and ethylenic elastomer (B), wherein the (A) resin is partially branched and/or the (B) elastomer is partially crosslinked by the addition of multifunctional acrylic monomer (C) containing at least three acrylate groups.
摘要:
The present invention provides rubber sealing members having an exterior surface adapted to sealingly engage an inner surface of a chamber of the medical device, the exterior surface of the sealing member having a coating thereon prepared from a curable composition including: (a) a first organopolysiloxane having at least two alkenyl groups; and (b) a second organopolysiloxane having at least two pendant hydrogen groups, the second organopolysiloxane being different from the first organopolysiloxane, wherein at least one of the first organopolysiloxane, the second organopolysiloxane or an optional third organopolysiloxane of the curable composition comprises a fluoro group.
摘要:
The present invention provides rubber sealing members having an exterior surface adapted to sealingly engage an inner surface of a chamber of the medical device, the exterior surface of the sealing member having a coating thereon prepared from a curable composition including: (a) a first organopolysiloxane having at least two alkenyl groups; and (b) a second organopolysiloxane having at least two pendant hydrogen groups, the second organopolysiloxane being different from the first organopolysiloxane, wherein at least one of the first organopolysiloxane, the second organopolysiloxane or an optional third organopolysiloxane of the curable composition comprises a fluoro group.
摘要:
The present invention relates to a junction gate photo-diode (JGP) pixel that includes a JGP for accumulating charge in response to impinging photons. The JGP is positioned on a substrate and includes a top n layer, a middle p layer and a bottom n layer forming a n-p-n junction, and a control terminal coupled to the top n layer. Also included is a floating diffusion (FD) positioned on the substrate and coupled to a pixel output line through an amplifier. Also included is a pinned barrier (PB) positioned on the substrate between the JGP and the FD, the PB temporarily blocks charge transfer between the JGP and the FD. The accumulated charge is transferred from the JGP to FD by applying a control voltage to the JGP control terminal.
摘要:
The present invention provides rubber sealing members having an exterior surface adapted to sealingly engage an inner surface of a chamber of the medical device, the exterior surface of the sealing member having a coating thereon prepared from a curable composition including: (a) a first organopolysiloxane having at least two alkenyl groups; and (b) a second organopolysiloxane having at least two pendant hydrogen groups, the second organopolysiloxane being different from the first organopolysiloxane, wherein at least one of the first organopolysiloxane, the second organopolysiloxane or an optional third organopolysiloxane of the curable composition comprises a fluoro group.
摘要:
The invention describes in detail a solid-state CMOS image sensor, specifically a CMOS image sensor pixel that has stacked photo-sites, high sensitivity, and low dark current. The pixels have incorporated therein special potential barriers under the standard pinned photodiode region that diverts the photo-generated electrons from a deep region within the silicon bulk to separate storage structures located at the surface of the silicon substrate next to the pinned photodiode. The storage structures are p channel BCMD transistors that are biased to a low dark current generation mode during a charge integration period. The signal readout from the BCMD is nondestructive, therefore, without kTC noise generation. Thus a single pixel is capable of detecting several color-coded signals while using fewer or without using any light absorbing color filters on top of the pixel. The image sensors constructed with the stacked photo-sites with BCMD readout have higher pixel densities, higher resolution, higher sensitivity, very low dark current, and no color aliasing if at least three depth encoded signals are read from a single photodiode. The pixels having stacked photo-sites with BCMD readout are particularly suitable for a CMOS image sensor that is illuminated from the back side.
摘要:
A thermoplastic elastomer (TPE) composition is provided which has a first high vinyl styrenic block copolymer (SBC) having a number average molecular weight (Mn) less than about 120,000 Daltons (Da) and a second high vinyl SBC having a Mn greater than about 120,000 Da; a polyolefin; and a plasticizer compatible with the first and second SBCs. An article formed from such a TPE composition has a tensile strength greater than 600 psi, a hardness less than 45 Shore A, and a haze less than 20 percent, preferably less than 15 percent, when the thickness of the article is 1.7 mm, and wherein the physical dimensions of the article remain substantially unchanged after immersion of the article in boiling water for one hour.
摘要翻译:提供了一种热塑性弹性体(TPE)组合物,其具有数均分子量(Mn)小于约120,000道尔顿(Da)的第一高乙烯基苯乙烯嵌段共聚物(SBC)和Mn大于约的Mn的第二高乙烯基SBC 120,000 Da; 聚烯烃; 和与第一和第二SBC兼容的增塑剂。 由这种TPE组合物形成的制品的拉伸强度大于600psi,硬度小于45肖氏A,雾度小于20%,优选小于15%,当制品厚度为1.7mm时,以及 其中在将制品浸入沸水中1小时后,制品的物理尺寸保持基本上不变。
摘要:
A method for inhibiting adverse reaction of the contents of a prefilled container during a radiation sterilization procedure is disclosed. In the method, a container which is made of a material including a radiation stable polyolefin is prefilled with a medium prior to being subjected to a gamma irradiation sterilization treatment. By using a radiation stable polyolefin material as the container, such as a polyolefin with a radiation stabilizer additive, and by prefilling the container prior to the gamma irradiation treatment, the container can be effectively sterilized without adversely affecting its contents.
摘要:
The present invention provides a mining method. The method includes: dividing a mining region into a plurality of federated mining regions; performing an open-pit mining operation in each of the federated mining regions and forming a pit in each of the federated mining regions; performing an underground mining operation on a slope of the pit and forming a plurality of excavated tunnels; and backfilling a pit of a previous federated mining region with a spoil of a subsequent federated mining region.