Patent GB-171661-A (GB)
Title: Improvements in and relating to manufacture of compositions and technical products containing ethers of carbohydrates having the empirical formula n(cho), their conversion products and derivatives
IPC: C08L1/26
Filed: 1920-08-16
Abstract: The oily liquids obtained by the process described in Specification 163,271, [Class 91, Oils &c.] in which coumarone resins obtained by treating aromatic hydrocarbons with sulphuric acid are freed from low boiling fractions and distilled in vacuo are added to alkyl or aralkyl derivatives of carbohydrates of the type n(C6H10O5), such as cellulose, starch, dextrine, &c., or their conversion products or derivatives, to produce masses suitable for the manufacture of artificial leather, photographic and like films, lacquers, varnishes, paints, electric insulation, sizes and dressings for textiles, leather, paper, &c., printing compositions &c., filaments, adhesives, &c.  Preferably ethers insoluble in water but soluble in organic solvents are employed.  Additions such as cellulose esters, gelatinizing or softening agents such as camphor, phosphoric esters of phenols, oils and the like may be made as desired.  Several examples are given of which the following is typical: 30 parts by weight of an ethyl or benzyl cellulose or starch soluble in the oils described in Specification 163,271, [Class 91, Oils &c.], are kneaded with 20-35 parts of these oils, preferably at a raised temperature until a uniform paste is obtained.  Colouring matter is added and the paste is rolled on to a suitable support in one or more layers to make artificial leather.  Small quantities of an organic solvent may be employed to assist the kneading.  Specifications 6035/13, 6387/13, and 3370/14, [Class 2 (iii), Dyes &c.], also are referred to.ALSO:The oil liquids obtained by the process described in Specification 163,271, [Class 91, Oils &c.], in which coumarone resins obtained by treating aromatic hydrocarbons with sulphuric acid are freed from low boiling fractions and distilled in vacuo are added to alkyl or aralkyl derivatives of carbohydrates of the type n(C6H10O5). such as cellulose, starch, dextrine, &c., or their conversion products or derivatives, to produce masses suitable for the manufacture of sizes and dressing for textiles, leather, paper, adhesives, &c.  Preferably ethers insoluble in water but soluble in organic solvents are employed. Additions such as cellulose esters, gelatinizing or softening agents such as camphor, phosphoric esters of phenols, oils and the like may be made as desired.  Several examples are given of which the following is typical: 30 parts by weight of an ethyl or benzyl cellulose or starch soluble in the oils described in Specification 163,271, [Class 91.  Oils &c.], are kneaded with 20-35 parts of these oils, preferably at a raised temperature until a uniform paste is obtained.  Colouring matter is added and the paste is rolled on to a suitable support in one or more layers to make artificial leather.  Small quantities of an organic solvent may be employed to assist the kneading.  Specifications 6035/13 and 6387/13, [both in Glass 2 (ii), Cellulose &c.], and 3370/14 also are referred to.ALSO:The oily liquids obtained by the process described in Specification 163,271, in which coumarone resins obtained by treating aromatic hydrocarbons with sulphuric acid are freed from low boiling fractions and distilled in vacuo are used for dissolving alkyl or aralkyl derivatives of carbohydrates of the type n(C6H10O5), such as cellulose, starch, dextrine, &c., or their conversion products or derivatives, e.g. ethyl or benzyl cellulose and ethyl or benzyl starch. Specifications 6035/13 and 6387/13, [both in Class 2 (ii), Cellulose &c.], and 3370/14 also are referred to.