49 results about "Diad" patented technology

The invention relates to novel adhesive alpha-olefin inter-polymers which are largely amorphous and have a Theological behavior that makes them suitable for adhesive use, both without and with minimzed amounts of tackifying resins. Specifically, the invention poly-alpha olefin inter-polymer may be composed of A) from 60 to 94 % of units derived from one alpha mono-olefin having from 3 to 6 carbon atoms and B) from 6 to 40 mol % of units derived from one or more other mono-olefins having from 4 to 10 carbon atoms and at least one carbon atom more than A); and C) optionally from 0 to 10 mol % of units derived from another copolymerizable unsaturated hydrocarbon, different from A) and B); the diad distribution of component A in the polymer as determined by 13C NMR as described herein showing a ratio of experimentally determined diad distribution over the calculated Bernoullian diad distribution of less than 1.07; and the storage modulus G' of said polymer, determined upon cooling as described herein, intersecting a value of 3.105 Pa at a temperature of less than 85 ° C. The invention also describes polymerization processes suitable for the manufacture of these adhesive alpha-olefin inter-polymers.

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.

A propylene polymeric composition with elastic character that is soluble in at least one nonpolar organic solvent selected from the group consisting of toluene, xylene, heptane, and hexane, comprises greater than 3 weight percent and up to 45 weight percent homotactic sequences each having only r or m diads, all of which homotactic sequences have a helical length in the range of 20 to 150Å, and in the range of 55 to 97 weight percent of the sum of homotactic sequences of less than 20Å in helical length, each homotactic sequence having only r or m diads and having fewer than 10 repeat units with mmmm pentads being present in the range of 0 to 35 weight percent of the total composition, and heterotactic sequences having r and m diads of unequal number, the polymer having a molecular weight (Mw) of at least 70,000.

A modified polypropylene which is a polypropylene having a value of racemic diad fraction [r] in a specific range and modified with a specific compound, e.g., (meth)acrylic acids, and their derivatives or styrene derivatives to have well-balanced properties of affinity for polypropylene-based materials, thermal stability, and high solubility in organic solvents; and a process for producing same. More particularly, the modified polypropylene which is a polypropylene having a value of racemic diad fraction [r] of 0.51 to 0.88, determined by ¹³C-NMR analysis, and chemically modified with a compound serving as a modifier, e.g., (meth)acrylic acids, and their derivatives or styrene derivatives; and the process for producing the modified polypropylene, wherein the polypropylene having a value of racemic diad fraction [r] in the above range is reacted with at least one type of the compound serving as the modifier in the presence of a radical initiator.

The invention discloses dihydroarteannuin-memantine diad compounds, and a synthesis method and application thereof. The structure of the compounds is disclosed as Formula I. The synthesis method comprises the following steps: reducing arteannuin to obtain dihydroarteannuin, carrying out acetalation reaction on the dihydroarteannuin and 2-bromoethanol under the catalytic action of Lewis acid, and carrying out reaction on the acetalation reaction product and memantine hydrochloride to obtain the dihydroarteannuin-memantine diad compounds. The compounds are reported for the first time, have an therapeutic effect on neurodegenerative diseases, and can be used for preparing drugs for treating neurodegenerative diseases. Compared with other prior arts, the compounds disclosed by the invention have the advantages of simple preparation technique and better curative effect than memantine.

The invention relates to a chain olefin-cycloolefin copolymer. According to the invention, content of cycloolefin in the chain olefin-cycloolefin copolymer is adjusted, and the copolymer contains diad formed by direct bonding of two cycloolefin constitutional units. Then, the obtained copolymer can show good properties in tensile strength, elongation at break, processability and the like. The chain olefin-cycloolefin copolymer can be used in manufacturing a polymer composition. The chain olefin-cycloolefin copolymer and the polymer composition can be used in manufacturing optical components, packing materials, electronic components, medical instruments and the like.

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.

The invention relates to a kind of Anti-pilling acrylic and its production technology. Based on weight proportion, it contains acrylonitrile copolymer A with 90-95% Acrylon, 10-5% Nikasol and viscosity average molecular weight of 35000-50000 and acrylonitrile copolymer B with 86-95% Acrylon, 14-5% Nikasol and viscosity average molecular weight of 50000-60000. The two copolymers mix at a ratio of 1:1-2. Total monolithic density of feed materials is 28-35%. Reaction temperature is 55-65deg.C, PH value is 2.0-3.0 and percent convention is 75-85%. Mixed copolymers are dewatered and solved by sodium sulfocyanate to prepare coarse stock solution with 13.5-14% copolymer. Coarse stock solution is degassed and filtered to get spinning stock solution. Reduce content of diad in copolymer to enhance intermolecular density, debase activity of molecular chain and enhance fiber rigidity and fragility of shearing action. Fiber ends in fabric are not easy to wind or knot, which achieves good anti-pilling effect.

A 4-methyl-1-pentene polymer having: a unit derived from 4-methyl-1-pentene of 90 to 100% by mol; a unit selected from ethylene and an α-olefin, other than 4-methyl-1-pentene, having 3 to 20 carbon atoms of 0 to 10% by mol; and the polymer satisfying the following requirements: (a) a meso diad fraction measured by ¹³C-NMR within the range of 98 to 100%; (b) a ratio of Z-average molecular weight Mz to weight-average molecular weight Mw measured by GPC within the range of 2.5 to 20; (c) a ratio of weight-average molecular weight Mw to number-average molecular weight Mn measured by GPC within the range of 3.6 to 30; (d) a melt flow rate measured under conditions of 260° C. and a 5 kg load (ASTM D1238) within the range of 0.1 to 500 g/10 min; and (e) an amount of a decane-soluble portion at 23° C. is 5.0% by mass or less.

The invention relates to novel adhesive alpha-olefin inter-polymers which are largely amorphous and have a rheological behavior that makes them suitable for adhesive use, both without and with minimzed amounts of tackifying resins. Specifically, the invention poly-alpha olefin inter-polymer may be composed of A) from 60 to 94% of units derived from one alpha mono-olefin having from 3 to 6 carbon atoms and B) from 6 to 40 mol % of units derived from one or more other mono-olefins having from 4 to 10 carbon atoms and at least one carbon atom more than A); and C) optionally from 0 to 10 mol % of units derived from another copolymerizable unsaturated hydrocarbon, different from A) and B); the diad distribution of component A in the polymer as determined by ¹³C NMR as described herein showing a ratio of experimentally determined diad distribution over the calculated Bernoullian diad distribution of less than 1.07; and the storage modulus G′ of said polymer, determined upon cooling as described herein, intersecting a value of 3.10⁵ Pa at a temperature of less than 85° C. The invention also describes polymerization processes suitable for the manufacture of these adhesive alpha-olefin inter-polymers.

This invention provides a polyfunctional polymer having high stereoregularity, in particular, isotacticity, and provides a production process thereof. The present invention relates to a polymer having, in a molecule, a repeating unit represented by General Formula (2):

The invention also relates to chemical modifications and a production process of the polymer.

A recombinant human diad stem cell factor (rhdSCF) used for radiotherapy, chemicotherapy and recreating and restoring the hematognesis and immune function after bone marrow transplantation is disclosed. It sequentially contains amino acid codons No1-165 of human SCF, 12 amino acid linker peptides, codons No1-145 of human SCF and DNA fragment of termination codon. Its advantage is high specific activity.

The invention is the equipment of shells automatic arranging and loading into the spreader. The uplift equipment and the filling equipment are above on the starting end of transition line. The shells evenly arrange at the front end of the transition line. The pushing-out apparatus is on the back end of the transition line. The diad equipment is under the pushing-out apparatus and is linked to the corresponding hole in the pushing-out apparatus through the channel. The dispersing equipment is under the diad equipment, and the channel makes the lower holes of the diad equipment communicate with the corresponding holes of the dispersing apparatus. The spreader is under the arranging spreading equipment. The strong points of the invention rely in: the pushing-out apparatus and the diad equipment evenly separate the shells transmitted by the transition line to N rows, and the dispersing equipment separates each row into M circuits and the spreader has MxN needles. The said shells are set on the spreader. The time of each shell transition is t, and the time of the pushing-out apparatus is t.N, and the time of the arranging spreader is t.M.N. The design of the invention is convenient and the simple low-speed apparatus can operate.

The invention belongs to the field of genetic engineering and pharmacy, and relates to a thrombopoietin fusion protein, a preparation method and applications thereof, particularly to a fusion proteinof a thrombopoietin mimetic peptide (TMP) diad encoded by a yeast preference codon and human serum albumin (HSA), a preparation method and applications thereof. According to the present invention, thefusion protein contains the HSA molecule and the TMP diad encoded by the yeast preference codon, wherein the HSA molecule is located at the N-terminal of the fusion protein, and the TMP diad encodedby the yeast preference codon is located at the C-terminal of the fusion protein; the fusion protein can be highly and stably expressed in yeast, and can be applied to industrial production; and the fusion protein can significantly promote the platelet production, has long half-life in the human body, and can be used for preparing drugs for treatment of various primary or secondary thrombocytopenia and other diseases.

The present invention is: a hydrogenated tetracyclododecene-based ring-opening polymer comprising a repeating unit (A) derived from tetracyclododecene in a ratio of 40 wt % or more based on a total amount of repeating units, a ratio of meso diads in the repeating unit (A) being 65% or more; and a method for producing the same. By means of the present invention, provided are: a crystalline hydrogenated tetracyclododecene-based ring-opening polymer having a high melting point and a high glass transition temperature, and exhibiting excellent heat resistance and excellent processability even after forming due to melt forming; and a method for producing the same.