145results about How to "Rapid hydrolysis" patented technology

Compounds of the formulaeLAn-Z-X—WwD and BZ-X—WwDwherein: D is a drug moiety; L is a ligand; B is a blocking group; A is an optional acyl unit; Z is an amino acid or a peptide residue; X is an aminobenzyl ether self-immolative spacer group; W is an optional second self-immolative group; n is an integer of 0 or 1; and w is an integer of 0 or 1, and compositions of said compounds with pharmaceutically acceptable carrier, diluent and / or excipient, and methods of delivery the drug D via the compounds.

The invention relates to polyaldimines which may be obtained from at least one polyamine (A) with aliphatic primary amino groups and at least one aldehyde (B). Said polyaldimines are odourless as are the aldehydes (B) produced by hydrolysis thereof. The invention further relates to methods for production of said polyaldimines and aldehyde (B) and methods for hydrolysis of the polyaldimine. The use of said polyaldimine in compositions as adhesive, sealant, coating or covering agents is disclosed. Said polyaldimines are characterised in being odourless, rapidly hydrolysed on contact with water, no detectable odours being generated after hydrolysis thereof and stable to storage with the exclusion of water in compositions which contain components reactive towards amines.

The invention relates to a rice protein polypeptide and also relates to a composite enzyme preparation method of the rice protein polypeptide. The preparation method comprises the following steps: size mixing, degreasing, centrifuging, homogenizing, enzymolysis reaction, sterilization and enzyme inactivation, centrifugal separation, concentration, drying and the like. The rice protein polypeptideprepared by using the preparation method has a protein content of 80% in percentage by weight and a fat content of 1% or below in percentage by weight, and has high bioactivity; the peptides of whichthe molecular weight distribution is 100-1000 Da account for more than 90% of the total protein content; and the product are completely soluble in water.

The composition and method for healing tissues is a medicinal composition for facilitating the growth, protection and healing of tissues and cells in animals and humans. The composition is formulated as a either a powder, gel, paste, film, fluid injectable, rehydratable freeze-dried paste or sponge, sprayable solution, topically applied patch with adhesive and reservoir system, an intermediate for coatables such as films and bandages, a matrix for membranes, or as a matrix of flexible polymer(s), or delivered as either an orally ingestible liquid, tablet or capsule. The main ingredient of the formulated compositions is hydrolyzed collagen, which can be combined with polysulfated glycosaminoglycans, hyaluronic acid or salts thereof, or a glucosamine salt, and mixtures thereof. The composition may be formulated as an aqueous eye drop solution.

The invention relates to polyaldimines which may be obtained from at least one polyamine (A) with aliphatic primary amino groups and at least one aldehyde (B). Said polyaldimines are odorless as are the aldehydes (B) produced by hydrolysis thereof. The invention further relates to methods for production of said polyaldimines and aldehyde (B) and methods for hydrolysis of the polyaldimine. The use of said polyaldimine in compositions as adhesive, sealant, coating or covering agents is disclosed. Said polyaldimines are characterized in being odorless, rapidly hydrolyzed on contact with water, no detectable odors being generated after hydrolysis thereof and stable to storage with the exclusion of water in compositions which contain components reactive towards amines.

A continuous process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water at a temperature from 90 to 400° C. and a pressure from 0.1 to 35x106 Pa in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide to obtain a reaction mixture,(2) further reacting the reaction mixture at a temperature from 150 to 400° C. and a pressure which is lower than the pressure in step 1, in the presence of a Brönsted acid catalyst as in (1), the temperature and pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or the first solid phase or from the mixture of first liquid and first solid phase, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 370° C. and a pressure from 0.1 to 30x106 Pa to obtain a product mixture.

The invention discloses an efficient continuous crackless flattening method of bamboo. The method includes following process steps: (1), pre-treating fresh bamboo tubes; (2), enabling the bamboo tubes to enter a heating pipeline for heating treatment; (3), flattening the bamboo tubes in a heat-insulating space connected with the heating pipeline; (4), post-treating flattened bamboo chips. The method has the advantages that when the fresh bamboo tubes are placed in a high-temperature separated pipeline with temperature of 130-160 DEG C, quick heating and heat-moisture treatment of high-temperature overheated steam are utilized to enable temperature of the bamboo tubes to reach softening points of lignin, cellulose and hemicellulose, and in a subsequent section of the heat-insulating space for high-temperature heating, multiple bamboo tubes or bamboo chips with certain radian are sequentially flattened, cooled and set through flattening rollers which widens progressively. By using the method, treatment temperature for bamboo flattening and labor intensity of workers during operation are lowered, harsh environment for the workers during operation is improved, and production automation level is high; finished products do not need de-yellowing treatment, flattened bamboo is better in physical and mechanical performance, attractive in color and luster and suitable for being used for making artware and furniture and home decoration.

The invention discloses a nano silver catalyst for catalyzing hydrolysis of amino borane and a preparation method thereof, and belongs to the field of hydrogen storage materials. The preparation method comprises the following steps: (1) adding graphene oxide, silicon dioxide, neutral aluminum sesquioxide, carbon black, calcium carbonate, cerium oxide or active carbon into a mixed solution of a soluble silver salt and a soluble M salt, and uniformly mixing to form a mixture; and (2) adding a reducing agent into the mixture under the condition of agitating, sufficiently reacting at 25-40 DEG C and purifying to obtain the nano silver catalyst for catalyzing hydrolysis of amino borane. The preparation method is simple, the preparation conditions are moderate and the production cost is low. The method can be used for preparing a bimetal, tri-metal or tetra-metal nano silver catalyst with a core-shell structure. The prepared nano silver catalyst is in the core-shell structure, and is large in specific surface area and good in catalytic performance.

Compositions and methods for fluorinated ester utilization as clean fire extinguishing agents are disclosed.