SU20318A1 - The method of obtaining rubbery mass - Google Patents

Description

The proposed method is intended to obtain a rubbery mass from various fungi, such as, for example, from cold and partly temperate mushrooms of the family of pelyporaceae growing on trees (for example, polyporas betulinus fv., Femes famentarius fv., Etc.) or from the family „Agacicaceae (for example„ amanita phalloides fv., Etc.). The method is based on the observation of the author that lower polyterpenes contained in many mushrooms can be extracted with various organic solvents, such as gasoline, ether, carbon disulfide, etc., and upon separation from these solvents, they easily polymerize when heated to a rubber-like substance. .

The method is to process the mushrooms. prewash with water or quick wash with boiled turpentine are cleaned from mechanical impurities (pieces of wood, bark, earth, etc.), dried, crushed by methods known in the art to a dusty state (in order to get as thin as possible) sifted), after which the resulting fine powder is treated with a solvent, such as

for example, carbon disulfide, acetone, ether, gasoline, chloroform, turpentine, etc., or mixtures thereof, taken in various proportions. The treatment with the indicated solvents is carried out to obtain a mass having a pasty consistency and consisting of a solution of polyterpenes, in which the loosened fibers of the fungi fiber are found. For this purpose, the amount of solvent is limited, depending on the desired consistency of the mass. For example, when used as a carbon disulfide solvent, the latter takes 2-3 wt. parts per weight. part of the mushroom powder. To facilitate the extraction of polyterpenes with solvents, the powder of fungi can be pre-chlorinated, for example, by treating the powder with hydrochloric acid, followed by removing the residue of free hydrochloric acid by squeezing the powder and drying. After dissolving polyterpenes with the above solvents, the resulting mixture is passed through hot rollers or through another device, kneading and heating the mass, under the action of elevated temperature, first, the solvents volatilize and, second, the lower polyterpenes polymerize, turning it

in rubbery mass. The product obtained in this way possesses sufficient elasticity and can be applied both directly and after vulcanization, produced by methods known in rubber technology (by fusing with sulfur, by the action of sulfur chloride, etc.).

To obtain a product that can resist the prolonged action of moisture, the mass treated with solvents (for example, carbon disulfide), or after the carbon disulfide carbon evaporates, or with it enters a paper roll, to which is also added a solution of albumin in an aqueous solution of caustic potassium or caustic soda. The mass obtained as described above is further processed by methods used in papermaking, i.e. subjected to drying, calendering, etc., or processed by cylindrical paper or cardboard machines on sheet rubber. In this case, the mass obtained by the latter method has a dark red color and is particularly resistant to the action of moisture.

The subject of the patent.

Claims (3)

1. A method of obtaining a rubbery mass, characterized in that the mushrooms of the family of the polypora family are growing on trees, for example, the polyporas betulinus fv, ,, fames famentarius fv. etc., or the family of agacicaceae, for example, amanite phalloides fv., after drying and grinding into a fine powder, mixed with turpentine, acetone, ether and the like with organic solvents to obtain a homogeneous slurry, The box is then either hot-rolled and other rubber-making apparatuses, or treated with water in a stationery roll and then molded on conventional paper-making machines or cardboard machines. 2. Accepting the method mentioned in claim 1, characterized in that, when processing the slurry roll obtained according to claim 1, an albumin solution in sodium hydroxide or potassium hydroxide is brought to it. 3. Acceptance of the aforesaid in p. P. 1 and 2, characterized in that the powder of the fungus is treated with hydrochloric acid before being treated with organic solvents.