GB363348A - Improvements in the manufacture and production of adhesives, coating and binding agents - Google Patents

Abstract

A mixture of butadiene, toluene, ligroin, butanol, and xylene under an air pressure of 80 atmospheres in an autoclave is heated to 120 DEG C.; the product is a solution which may be employed as a varnish, if desired with the addition of colcothar; coatings may be dried at 90 DEG C. Specifications 29277/09, 283,840, 312,949, 317,030, 328,908, 333,894, [all in Class 2 (iii), Dyes &c.], and 359,944 are referred to.ALSO:Viscous to solid products are produced by warming butadiene under increased pressure in presence of a substantial quantity of oxygen but in the absence of water and of hydrazine derivatives. An organic solvent or mixture of solvents may be added which is capable of dissolving the polymerization product. Instead of oxygen, gases containing or capable of supplying oxygen may be used, such as air or a mixture of air with ozone, nitric oxide or nitrogen dioxide, or a mixture of oxygen with carbon dioxide. Inorganic or organic catalyst may also be used such as alkali metals, iron, or aromatic or aliphatic amines. Suitable solvents are hydrocarbons such as benzine, benzene, toluene, cyclohexane, tetrahydrostyrene or mixtures thereof with oxygen-containing compounds such as aliphatic alcohols, esters, and ketones. The solvents may be so chosen as to be suitable for use in the application of the product as a paint or varnish. In the examples, (1) butadiene is heated with tetrahydrostyrene at 195 DEG C. under 20 atmospheres pressure of air, and the product is suitable for artificial masses, films, lacquers, and adhesives for joining paper, wood, glass, and the like; for instance glass sheets may be coated with the solution, the coated surfaces being placed in contact and heated at 85-90 DEG C. under a pressure of 10 kilos. per sq. cm.; (2) butadiene mixed with benzene, ligroin, and xylene is heated to 180 DEG C. under an air pressure of 60 atmospheres; (3) butadiene mixed with toluene, ligroin, and butanol is subjected to air pressure of 80 atmospheres in an autoclave which is then raised to 200 DEG C., the pressure rising to 120 atmospheres; after releasing the pressure, the product is heated to 80 DEG C. under a fresh air pressure of 60 atmospheres; (4) a mixture of butadiene, toluene, ligroin, butanol, and xylene is placed under an air pressure of 80 atmospheres in an autoclave and then heated to 120 DEG C.; the product is a solution which may be employed as a varnish, if desired with the addition of colcothar; coatings may be dried at 90 DEG C.; (5) butadiene mixed with toluene is heated in air and ozone at 200 DEG C. and 50 atmospheres pressure; (6) butadiene is placed under an air pressure of 10 atmospheres and heated to 130 DEG C. Specifications 29277/09, 283,840, 312,949, 317,030, 328,908, 333,894, [all in Class 2 (iii), Dyes &c.], and 359,944 are referred to.ALSO:Viscous to solid products suitable for use as adhesives are produced by warming butadiene under increased pressure in presence of a substantial quantity of oxygen but in the absence of water and of hydrazine derivatives. An organic solvent or mixture of solvents may be added which is capable of dissolving the polymerization product. Instead of oxygen, gases containing or capable of supplying oxygen may be used, such as air or a mixture of air with ozone, nitric oxide or nitrogen dioxide, or a mixture of oxygen with carbon dioxide. Inorganic or organic catalyst may also be used such as alkali metals, iron, or aromatic or aliphatic amines. Suitable solvents are hydrocarbons such as benzine, benzene, toluene, cyclohexane, tetrahydrostyrene or mixtures thereof with oxygen-containing compounds such as aliphatic alcohols, esters and ketones. In an example, butadiene is heated with tetrahydrostyrene at 195 DEG C. under 20 atmospheres pressure of air, and the product is suitable for adhesives for joining paper, wood, glass, and the like; for instance glass sheets may be coated with the solution the coated surfaces being placed in contact and heated at 85-90 DEG C. under a pressure of 10 kilos. per sq cm. Specifications 29277/09, 283,840, 312,949, 317,030, 328,908, 333,894, [all in Class 2 (iii), Dyes &c.], and 359,944 are referred to.