Patent GB-363859-A (GB)
Title: Preparation of rubber-like resins
IPC: C08G63/48
Filed: 1931-01-19
Abstract: Rubber-like products are formed by heating together a polyhydric alcohol containing three or more hydroxy groups, castor oil, and adipic, pimelic, suberic, azelaic, or sebacic acid.  The castor oil may be raw, blown, or heavy-body oil.  Dihydric alcohols such as glycol and diethylene glycol and drying oils such as linseed oil may be added to the reaction mass.  The products in their soluble state can be directly blended with cellulose nitrate or acetate, and in the insoluble state can be ground in rubber mills or paint grinders with a suitable solvent such as butyl acetate and cellulose nitrate when they become soluble and yield solutions suitable for leather lacquers.  Examples describe condensation products from glycerine, castor oil, and sebacic acid; glycerine, blown castor oil, and sebacic acid; glycerine, castor oil, linseed oil, and sebacic acid; mannitol, heavy-body castor oil, and sebacic acid; and glycerine, castor oil, and azelaic, suberic, pimelic or adipic acid.  In order to check the condensation when using relatively high temperatures so as to obtain a soluble product, a suitable organic solvent such as butyl acetate, butyl alcohol or toluene may be added.  The products can be incorporated in linseed oil or other drying oils by adding the oil to the batch during the condensation or by heating the oil with the product until solution occurs.  The products may be used as plasticizers in cellulose nitrate or other cellulose lacquers, and increase the adhesion of the films.  They may also be used as bonding materials for rubber, asbestos, clay, pigments, wood flour, and the like.ALSO:Ester condensation products.--Rubber-like products are formed by heating together a polyhydric alcohol containing three or more hydroxy groups, castor oil, and adipic, pimelic, suberic, azelaic, or sebacic acid.  The castor oil may be raw, blown, or heavy-body oil.  Dihydric alcohols such as glycol and diethylene glycol and drying oils such as linseed oil may be added to the reaction mass. The products in their soluble state can be directly blended with cellulose nitrate or acetate, and in the insoluble state can be ground in rubber mills or paintgrinders with a suitable solvent such as butyl acetate and cellulose nitrate when they become soluble and yield solutions suitable for leather lacquers. Examples describe condensation products from glycerine, castor oil and sebacic acid; glycerine, blown castor oil, and sebacic acid; glycerine, castor oil, linseed oil, and sebacic acid; mannitol, heavy - body castor oil, and sebacic acid; and glycerine, castor oil, and azelaic, suberic, pimelic or adipic acid.  In order to check the condensation when using relatively high temperatures so as to obtain a soluble product, a suitable organic solvent such as butyl acetate, butyl alcohol or toluene may be added.  The products can be incorporated in linseed oil or other drying oils by adding the oil to the batch during the condensation or by heating the oil with the product until solution occurs.  The products may be used as plasticizers in cellulose nitrate or other cellulose lacquers, and increase the adhesion of the films.  They may also be used as bonding materials for rubber, asbestos, clay pigments, wood flour and the like.ALSO:Rubber-like products are formed by heating together a polyhydric alcohol containing three or more hydroxy groups, castor oil, and adipic, pimelic, suberic, azelaic, or sebacic acid.  The castor oil may be raw, blown, or heavy-body oil.  Dihydric alcohols such as glycol and diethylene glycol and drying oils such as linseed oil may be added to the reaction mass.  The products in their soluble state can be directly blended with cellulose nitrate or acetate, and in the insoluble state can be ground in rubber mills or paint grinders with a suitable solvent such as butyl acetate and cellulose nitrate when they become soluble and yield solutions suitable for leather lacquers.  The products can be incorporated in linseed oil or other drying oils by adding the oil to the batch during the condensation or by heating the oil with the product until solution occurs.  The products may be used as plasticizers in cellulose nitrate or other cellulose lacquers, and increase the adhesion of the films.  They may also be used as bonding materials for rubber, asbestos, clay, pigments, wood-flour, and the like.