31results about How to "Positive color" patented technology

The invention provides a flame retardant mixed silicone rubber prepared by simultaneous using the platinum compound and carbon black and relates to the technical field of rubber products. The flame retardant mixed silicone rubber comprises the following components in parts by weight: 40-100 parts of natural rubber, 10-30 parts of fumed silica, 0.5-10 parts of dimethyl cyclosiloxane, 20-60 parts of the platinum compound, 1-5 parts of carbon black, 0.5-3 parts of ammonia water, 0.5-1 part of China wood oil and 0.1-0.5 part of complex phosphate. The flame retardant mixed silicone rubber provided by the invention is simple in components and convenient to prepare; through adding the platinum compound, the complex phosphate, the ammonia water and other components, the prepared mixed silicone rubber is good in performances, inodorous, pure in color and favorable in flame retardant property.

The invention relates to a preparation method of isoniazid para-aminosalicylate. The preparation method of isoniazid para-aminosalicylate comprises the following steps: (1) respectively weighting water and an organic solvent, mixing, adding para-aminosalicylic acid and isoniazid to a solvent of the water and the organic solvent, heating and stirring; (2) cooling and growing grains, and filtering to obtain isoniazid para-aminosalicylate, wherein the organic solvent is an organic ester with the carbon number of less than or equal to 6. By using the preparation method, the preparation of isoniazid para-aminosalicylate is realized at low cost and high efficiency in a water and ester two-phase solvent system under a simple, convenient and feasible technological condition. The content of isoniazid para-aminosalicylate prepared by the method is higher than 99%. Isoniazid para-aminosalicylate has good appearance crystal form, standard color and luster and good stability. The preparation method has the advantages of few reaction operating units, simple technological process, short time consumption, low production cost, environmental friendliness, simple operation and easiness for control on the implementation process and is suitable for the industrial production of isoniazid para-aminosalicylate.

The supercritical carbon dioxide process for extracting lutein from merigold flower includes the extraction of fermented, dried and crushed merigold flower material with supercritical carbon dioxide having ethanol entrainer to obtain merigold flower extractum and the saponification of merigold flower extractum with potassium hydroxide to obtain water soluble lutein resin used as edible color. The present invention has simple technological process with low power consumption and environment friendship and the product has high purity, pure color, high heat and light stability and stable color.

The invention provides a method for producing pig placenta polypeptide, which belongs to the technical field of food processing. In the present invention, the pig placenta is firstly washed and crushed to obtain minced pork placenta; then the minced pig placenta is mixed with water 2 to 10 times the weight of the minced pig placenta to obtain a minced meat liquid; then the minced meat liquid is mixed with 0.5%~ Mixing compound enzymes with 10% pig placental minced meat mass to obtain a mixed solution; the mixed solution is vacuum-packed, irradiated and sterilized, and then enzymatically hydrolyzed for 4 to 24 hours to obtain an enzymatic hydrolyzate; then the enzymatically hydrolyzed solution is centrifuged and filtered to obtain the above supernatant; finally, the supernatant is spray-dried to obtain the porcine placenta polypeptide. The method provided by the invention has high yield, short cycle and no pollution, and the pig placenta polypeptide prepared by the method of the invention can be developed into functional drinks and health products, and the polypeptide product has light fishy smell and positive color.