SU41518A1 - The method of obtaining resins - Google Patents

Description

Certificate No. 30276 states that casein, by benzylation in the presence of alkali, converts into soluble resins, which can be successfully used for the manufacture of varnishes, etc. The authors found that not only casein but other protein substances can the process becomes soluble in organic solvents, non-hygroscopic, bold, with high physical and electrical properties.

Formaldehyde tanned galalite (galalitic waste), yeast, animal glue, horn, fish scales, ricin jelly, animal skin cheese, alab, protein waste of starch production, etc., are tested

Example 1. 800 g of tanned galalite is ground to the size of prospective grain, then it is stirred for two hours with 800 g of 2% aqueous solution of caustic soda. The mixture is heated under reflux: g: at a temperature of 90-100 ° C with 1120 g of benzyl chloride & within six hours with good mixing. When the mass becomes homogeneous and almost completely soluble in alcohol-benzene and acetone-gasoline 10th mixture, it is blown with steam to remove as much as possible of benzyl chloride and volatile reaction products (benzylamines, benzyl ether). The resin is washed either with pure water or with water acidified with weak acetic acid or formic acid KILOT01-: c with HjaT in vacuum at 80-90 (it is possible and not in vacuum at 100-105 °). The yield of dry resin is 1071 g, the color varies from yellow to brown-yellow, c; .av1; most of the drying method, the temperature of caplepadea (but Ubbelade) is 90 - 117 °.

Example 2. 171 g of horn shavings or sawdust, previously degreased, are stirred for one hour with a 150 g 33 .. caustic reward. The mixture is heated under reflux when placed with 450. see benzyl chloride at 100-BUT for 4-5 hours. When the sample shows almost 5: oli K) the solubility of the product in alcohol-benzene or ethanes-benzene,

4epe; i mix steam for dl; removal of volatile parts. The resulting resin is washed with acidic acid, then with clean water, drained and dried in vacuo at 80-90. Yield - 1306 g, the color of the resin is from light to dark yellow. Melting point 80-PO, depending on thoroughness.

Example 3. SO g is sifted through a sieve of 200 meshes of ricinous meal (mite waste (Y when producing; castor oil production, protein content 80%), rubbed B 80 cc. 25% sodium hydroxide solution and the mixture is left After 24 hours at room temperature to maturity. After STOJ-O, the mixture is transferred to a flask with a reverse cold; piping; ff pt tevayug & ampoule chloride / benzyl for 5-6 hours using 100 p. .iepax 1 and 2. Dry resin application to soil, dark-brown resin with hydrothermal melting 70-80.

Printer 4. 200 g of dry fish scale and 280 g of benzyl chloride are heated to 90-SO in a well stirred flask with reflux condenser. Through a droplet 1; crown, 200 g of a 25% sodium hydroxide solution are introduced in small portions within 2–3 hours. After I-2 hours after the introduction of the alkali, the reaction is usually malignant, and the product is made soluble almost completely in alcohol-benzene or acetone-benzene sulfuric acid. It is blown with steam, washed and dried, as indicated in the examples. Output

80-50% on carried. Csfo.ia light yellow with a melting point of PO-130 but Ubbelade.

PRI me R 5. 120 g of brewer's yeast is ground with 120 g of 2% aqueous solution of caustic soda. After two hours, the mixture is heated with 180 g of benzyl chloride at 100 -PO with constant stirring for about 8 hours. When the mass becomes homogeneous, Yulupro. Facial and almost wholly soluble and sp-benzene or acetone-benzene mixture, it is purged with nar, washed and cyinaT, as in the previous examples. Exit 135 g. Resin dark brown. The temperature of dropping on Ubbelada 70-85.

All of the resins, ools-Vlys c benziruate iUfeM b.-sovic bodies, are dissolved in snrn-benzene, ethylene chloride, chloroform, carbon tetrachloride, trnh etherilen, ethylene-hydrochloride, etc.

Lucky require for umen1 n1 nor hr; bones nlenol injection of plasticizers, trmccnnil-phosphate, dketyl or dibutyl phthalates, benzyl ionetatl and g., i.

Subject and d optin.

Apply the method o; Isa: a {th in copyright m. certificate No. 30276, for benzylation of other proteins, such as galalit, yeast, fry, meal, waste: ozh

one

glue, skin n others