33results about How to "Easily material" patented technology

The present invention discloses a system using a conduit run into a well on a service string. In one embodiment the conduit includes outlets along its length to permit a sand control treatment to exit the conduit along the length of the conduit and distribute the sand control treatment along the length of the conduit. The conduit can have a plurality of such outlets spaced to provide an even distribution of the sand control treatment. The conduit can be attached to the delivery tubing (such as coiled tubing or service string tubing) via a releasable connector. The conduit is deployed on the delivery tubing and connector (and is in fluid communication therewith) in the well adjacent to an area to be treated. The sand control treatment is pumped into the well. Once the sand control treatment is complete, the releasable connector is released to disconnect the conduit from the delivery tubing and the delivery tubing is removed from the well.

A marking strip has a plurality of marking elements which are connected to each other by a connecting region. The marking strip having the marking elements is designed to mark electrical devices, in particular electrical devices that can be arranged next to each other such as terminal blocks. Each of the marking elements has a marking plate including at least one writing field which can be provided with information. On the side facing away from the writing field, each of the marking elements has a locking contour which is integrally connected with the marking plate. The marking strip is formed of at least two different plastic materials of different hardness. The locking contour of each marking element is formed of a harder plastic material, and the marking plate is formed of a softer plastic material at least in the region of the writing field. The connecting region between the marking elements is formed of the softer plastic material.

An electrical contact element formed of sheet metal having a first region and a second region. Each one of the first and second regions is coated with a coating including a first layer containing a first material having a lower standard electrode potential than the sheet metal material. The coating includes a second layer in the first region which is absent in the second region. The second layer is arranged underneath the first layer and contains a second material that has a lower standard electrode potential than the first material.

The present invention discloses a novel method for preparing and purifying 4-(6-Amino-purin-9-yl)-2(S)-hydroxy-butyric acid methyl ester. The preparation started from cheap and easily available L-malic acid, which was transformed to intermediate I after simultaneous protection of the groups of 1-carboxyl and 2-hydroxyl. The intermediate I was selectively reduced to intermediate alcohol II, whose hydroxyl group was further transformed to an easily leaving group to afford intermediate III. The intermediate III was nucleophilically substituted with adenine to afford intermediate IV. The intermediate IV was deprotected and methyl-esterified simultaneously in methanol in the presence of an acid or a base to afford crude 4-(6-Amino-purin-9-yl)-2(S)-hydroxy-butyric acid methyl ester, which was purified by recrystallization to afford the purified product. Comparing with the prior preparation methods, the present method has advantages in low cost, mild conditions, high retention of the chiral center during the reaction, high productivity, great improvement in the quality and yield of the product and great decrease in cost, and thus is suitable for the production on a large scale.

The present invention provides a series of penta-substituted tetrahydropyrimidines with aggregation-induced emission (AIE) characteristics and preparation method and use thereof. The AIE penta-substituted tetrahydropyrimidines have structures shown as formula (I). R1 is selected from a group consisting of linear or branched alkyls and substituted alkyls. R2 and R4 is respectively selected from a group consisting of linear or branched alkyls, substituted alkyls, cycloalkyls, substituted cycloalkyls, aryls, substituted aryls, polycyclic aryls, substituted polycyclic aryls, heterocyclyls, substituted heterocyclyls, aromatic heterocyclyls and substituted aromatic heterocyclyls. R3 is selected from a group consisting of aryls, substituted aryls, polycyclic aryls, substituted polycyclic aryls, aromatic heterocyclyls and substituted aromatic heterocyclyls. The penta-substituted tetrahydropyrimidines can be prepared by multi-component reactions (MCR). There are 1˜3 aryls in the structure of the penta-substituted tetrahydropyrimidines. The penta-substituted tetrahydropyrimidines possess strong AIE properties and can be used for preparing organic electro-luminescence or photo-luminescence devices, or chemical and biological fluorescent sensors or probes.

The present invention provides an LED lamp heat sink which has excellent thermal conductivity and moldability, is light in weight, and can be produced at low cost. The LED lamp heat sink is partially or wholly made of a thermally conductive resin composition and cools an LED module. The thermally conductive resin composition contains at least: 10 to 50 wt. % of thermoplastic polyester resin (A) having a number average molecular weight of 12,000 to 70,000; 10 to 50 wt. % of polyester-polyether copolymer (B); and 40 to 70 wt. % of scale-like graphite (C) having a fixed carbon content of 98 wt. % or more and an aspect ratio of 21 or more. Specific gravity of the thermally conductive resin composition is 1.7 to 2.0. Heat conductivity of the thermally conductive resin composition in a surface direction is 15 W / (m·K) or more.

A raw material mixture containing an easily oxidizable material is weighed. The raw material mixture is melted and then solidified within a reaction vessel 1 set in a non-oxidizing atmosphere to thereby produce a solidified matter 19. The reaction vessel 1 and the solidified matter 19 are heated in a non-oxidizing atmosphere within a crystal growth apparatus to melt the solidified matter to thereby produce a solution. A single crystal is grown from the solution.

A trowel for use in painting or sculpturing and having a handle enabling a user to hold the trowel, a rotating mechanism supported by the handle and an application member removably attached to and in rotary union with the rotating mechanism. The invention relates to a method for creating a three-dimensional artistic creation on a support member, with the method including distributing an image creating material on a palette, removing first portions of the image creating material and applying the image creating material with pressure across a path along and onto the support member with a twisting movement. Such application results in the first portions forming deposited panels that protrude from the support member at a thickness that is greater than that of the material on the palette. The invention also relates to a kit that includes a plurality of trowels with various size blades and image creating material.

The present invention is a banjo tone ring with vertical sides (30) as opposed to the angled design of conventional banjo tone rings (120). The ring (30) of the present invention has specific height (h) to width (w) or thickness ratios and is within specific weight ranges for improved performance It vibrates much freer and thus raises the quality of musical tones from the banjo (10) to much higher aesthetic levels. Other embodiments also modify the musical tones for different sounds. Several novel embodiments of manufacturing methods are also described.

The present invention provides a novel complex lipid having a cationic functional group derived from an amino acid. Namely, the present invention provides a cationic acid amino acid type lipid represented by the following formula:wherein, R1 is a hydrocarbon group having a cationic functional group derived from an amino acid, R2 and R3 are each independently a chain hydrocarbon group, A1 and A2 are each independently a linkage group selected from the group consisting of —COO—, —OCO—, —CONH— and NHCO—, and n is an integer of 2 to 4.