50 results about "Diad" patented technology

A novel olefin-based polymer has excellent thermal resistance, as well as excellent balance among various properties. The olefin-based polymer is an olefin-based polymer comprising 50 to 100% by weight of a constituent unit derived from 4-methyl-1-pentene, and 0 to 50% by weight of a constituent unit derived from at least one olefin selected from olefins having 2 to 20 carbon atoms except 4-methyl-1-pentene, and having the following properties: i) the diad isotacticity is 70% or greater, ii) the ratio (Mw / Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) as measured by gel permeation chromatography (GPC) is in the range of 1.0 to 3.5, and iii) the intrinsic viscosity [η] is 0.5 (dl / g) or greater.

The invention provides a preparation method of porphyrin photosensitizer and anticarcinogen diad, relates to a preparation method of the diad and solves the technical problems that the porphyrin photosensitizers cannot kill all cancer cells under the light irradiation, the targeting of the anticarcinogen is insufficient, and toxic or side effects are generated. The method comprises the following steps of: 1, preparing midbodies; and 2, preparing the porphyrin photosensitizer and anticarcinogen diad. Because porphyrin and the metal complex compounds thereof have special affinity on the cancer cells, the photosensitizers of 4-hydroxyphenyl porphyrin and anticarcinogen are prepared into the diad, the affinity of the porphyrin on the cancer cells is utilized, so the targeting of the anticarcinogen can be improved, the anti-cancer capability is improved, and in addition, the toxic or side effect is reduced. The anti-cancer effect of the anticarcinogen overcomes the defect of insufficient anti-cancer capability of the porphyrin photosensitizer. Under the conditions of light illumination and dark light, two different anti-cancer mechanisms realize the cooperative effect, the advantage complementation of the anti-cancer effects of the two compounds is realized, the toxic or side effects are reduced under the use condition of the same quantity, and the anti-cancer capability is improved.

A sealing member to be used for sealing a constituent member of a fuel cell is provided, the sealing member including a cross-linked product of a rubber composition, in which the rubber composition contains the following components (A) and (B). With this, rubber elasticity is maintained without being lost even under extremely low temperature conditions, and in the case where the sealing member is used in a fuel cell sealed body, an excellent sealing property is exhibited. (A) a rubber component including at least one of an ethylene-propylene rubber or ethylene-propylene-diene rubber having a ratio of ethylene-ethylene diad distribution of at most 29 mol %. (B) a cross-linking agent including an organic peroxide.

Disclosed is a tape base exhibiting excellent oil resistance, while having flexibility, cuttability by hand and heat resistance in a balanced manner. Also disclosed is an adhesive tape using the tape base. Specifically disclosed is a tape base containing an ethylene-aromatic vinyl compound copolymer having an isotactic tacticity. In the copolymer structure of the ethylene-aromatic vinyl compound copolymer, the isotactic diad fraction m of Ph (aromatic group) in the alternating structure of ethylene and the aromatic vinyl compound represented by the formula (1) below is preferably more than 0.75. (1) (In the formula, Ph represents an aromaticgroup, and xa represents the number of repeating units, which is an integer of not less than 2).

Systems and methods for facilitating secured loan transactions are provided. Drivers of a fleet of parcel delivery vehicles associated with a particular common carrier are used to pick up collateral from a borrower to secure a loan. A driver visits the borrower's address as part of executing parcel delivery transactions to pick up the collateral. The driver may verify the borrower's identity and the validity of the collateral when receiving the collateral. An indication of the receipt of the borrower's collateral is provided to a system accessible by a lending facilitator, such as via the driver's DIAD. The indication can be used by the peer-to-peer lending facilitator to determine a level of risk associated with entering into a loan transaction with the borrower and / or an interest rate for the loan. In some cases, the collateral is delivered to a third party escrow service.