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615results about How to "Suitable for storage" patented technology

Polyimide precursor, resin composition comprising the polyimide precursor, pattern forming method using the resin composition, and articles produced by using the resin composition

It is a main object of the present invention to provide a polyimide precursor and a polyimide precursor resin composition, which precursor being easy to synthesize, available at low cost, excellent in storage and capable of giving polyimide that is low in impurities after imidization, irrespective of the chemical structure of the finally-obtained polyimide.It is another object of the present invention to provide a polyimide precursor having repeating units represented by the following formula (1) and a photosensitive resin composition comprising the polyimide precursor and a photoacid generator or photobase generator:In the formula (1), R1 is a tetravalent organic group; R2 is a divalent organic group; R1s may be the same or different from each other and R2s may be the same or different from each other in the repeating units; R3 and R4 respectively represent a monovalent organic group having a structure represented by the following formula (2) and may be the same or different from each other; and R3s and R4s in the repeating units may be the same or different from each other, respectively. In the formula (2), R5, R6 and R7 respectively represent a hydrogen atom, a halogen atom or a monovalent organic group; R8 is a monovalent organic group; R8s in the repeating units may be the same or different from each other; 35 mole % or less of R8s are organic groups having a reactive group; and R5, R6, R7 and R8 may be bonded to each other to form a ring structure.
Owner:DAI NIPPON PRINTING CO LTD

Health care type red date, fresh ginger and lactic acid fermentation beverage and preparation thereof

The invention discloses a healthcare jujube compound juice beverage by lactic acid fermentation and a preparation method, which is characterized in that based on the volume of 100 L, the beverage comprises 15% to 20% dried jujube with the water content of 5% to 28% and 0.7% to 1% ginger according to the mass ratio, as well as 3% to 5% lactic acid culture medium of lactobacillus acidophilus S1 and balance of drinking water according to the volume ratio with a constant volume; the jujube and the pre-boiling water are boiled and beaten according to the mass-volume ratio of 1 : 4 to 6; the pectinase is added for enzymatic hydrolysis; the ginger is juiced after blanching to obtain the ginger juice; the two are mixed according to the mass ratio of 3 to 5 : 1 with sterilization for 10 minutes under the temperature of 121 DEG C; then inoculated fermentation is conducted after sterilization and cooling of the remixed fermented juice; finally sterilization for 10 to 20 minutes under the temperature of 65 to 85 DEG C is conducted to obtain the product. The healthcare jujube compound juice beverage by lactic acid fermentation has the advantages of being beneficial to dyspepsia and enterogastric disorder patients, enriching blood, replenishing qi, beautifying and removing spot and being suitable for application to every deep processing field of jujube.
Owner:XINJIANG UNIVERSITY

Water soluble preservative film for fruits and vegetables and preparation method of preservative film

The invention relates to a water soluble preservative film for fruits and vegetables and a preparation method of the preservative film. The water soluble preservative film for the fruits and vegetables is mainly prepared by the following materials in percentage in weight: 50 to 80% of polyvinyl alcohol with alcoholysis degree of less than 90%; 10 to 30% of polyhydroxy plasticizer, 1 to 5% of auxiliary film forming agent, 3 to 8% of low temperature antifreeze agent, 3 to 10% of adsorbent filling agent and 0.3 to 2% of film-forming adding additive. The preparation method comprises the following two steps of: 1, after metering contents of components of the preservative film in the formula, obtaining a uniform aqueous solution with concentration of 15 to 25% in water; and 2, uniformly casting the prepared solution on a clear steel band, and drying the solution to obtain the film through a dried drying tunnel with temperature of 120 to 180 DEG C. The preservative film has a high barrier property against oxygen, carbon dioxide and nitrogen and the like, and has a high bidirectional permeable exchange capacity for steam, thereby guaranteeing free breathing and water exchange of the fruits and vegetables in a preserving process.
Owner:深圳市乾健科技有限公司
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