Patent GB-408806-A (GB)
Title: A process of improving cellulose derivatives
IPC: C08K5/11
Filed: 1933-04-11
Abstract: A neutral ester of diglycollic acid with an ether of a polyhydric alcohol containing only one free hydroxyl group is incorporated with a cellulose derivative in the production of paints, varnishes, and artificial leather.  The ether of a polyhydric alcohol may be an ether of ethylene glycol, 1 : 2 propylene glycol, or 1 : 3 butylene glycol.  Di-esters containing two radicals of the same ether-alcohol, or mixed esters of different ether-alcohols, or mixed esters having radicals of glycollic ethers and aliphatic alcohols may be used.  The ether-alcohol may be a di-ether of glycerine such as dimethyline or diethyline.  In an example the neutral ester of diglycollic acid and butoxy-3-butanol-1 is ground into a paste with castor oil, zinc white, and titanium dioxide, and the paste is mixed with a lacquer consisting of nitrocellulose, butyl acetate, butanol, acetone, and benzine or toluene.  The white varnish obtained may be applied to paper, fabrics, leather or artificial leather.  In another example, a colourless lacquer is made by mixing collodion cotton, polyvinyl acetate, the ester of diglycollic acid and methoxy-3-butanol-1, and a solvent mixture.  A cable varnish is made by mixing cellulose acetate, the ester of diglycollic acid with methoxy-2-ethanol-1, a mixture of alkylated para-toluene - sulphonamides, tri-phenyl phosphate and acetone.  Other examples describe the production of solutions for use as wood varnish, or lacquers for metal foils, or binding agents for printing or painting colours.  In addition to the diglycollic esters and cellulose esters or ethers the solutions may contain resins such as a condensation product of glycerine, phthalic anhydride, and a fatty oil, and pigments such as zinc sulphide and titanium dioxide.  Specifications 251,303 and 316,324, [both in Class 95], are referred to.ALSO:A neutral ester of diglycollic acid with an ether of a polyhydric alcohol containing only one free hydroxyl group is incorporated with a cellulose derivative in the production of plastic masses, films, filaments, paints, varnishes, artificial leather, and splinterless glass.  The ether of a polyhydric alcohol may be an ether of ethylene glycol, 1 : 2 propylene glycol, or 1 : 3 butylene glycol.  Di-esters containing two radicals of the same ether-alcohol, or mixed esters of different ether-alcohols, or mixed esters having radicals of glycollic ethers and aliphatic alcohols may be used.  The ether-alcohol may be a di-ether of glycerine such as dimethyline or diethyline.  In an example, the neutral ester of diglycollic acid and butoxy-3-butanol-1 is ground into a paste with castor oil, zinc white, and titanium dioxide, and the paste is mixed with a lacquer consisting of nitrocellulose, butyl acetate, butanol, acetone, and benzine or toluene.  The white varnish obtained may be applied to paper, fabrics, leather, or artificial leather.  In another example, a colourless lacquer is made by mixing collodion cotton, polyvinyl acetate, the ester of diglycollic acid and methoxy-3-butanol-1, and a solvent mixture.  A cable varnish is made by mixing cellulose acetate, the ester of diglycollic acid with methoxy-2-ethanol-1, a mixture of alkylated para - toluene - sulphon - amides, triphenyl phosphate, and acetone.  Other examples describe the production of solutions for use as wood varnish, or lacquers for metal foils, or binding agents for printing or painting colours.  In addition to the diglycollic esters and cellulose esters or ethers, the solutions may contain resins such as a condensation product of glycerine, phthalic anhydride, and a fatty oil, and pigments such as zinc sulphide and titanium dioxide.  A film of nitrocellulose containing the ester of diglycollic acid and butoxy-3-butanol-1 may be swollen with a solvent and pressed between two sheets of glass so as to form splinterless glass.  Specifications 251,303 and 316,324, [both in Class 2 (ii)], are referred to.ALSO:A neutral ester of diglycollic acid with an ether of a polyhydric alcohol containing only one free hydroxyl group is incorporated with a cellulose derivative in the production of plastic masses.  The ether of a polyhydric alcohol may be an ether of ethylene glycol, 1 : 2 propylene glycol, or 1 : 3 butylene glycol.  Di-esters containing two radicals of the same ether-alcohol, or mixed esters of different ether-alcohols, or mixed esters having radicals of glycollic ethers and aliphatic alcohols may be used.  The ether-alcohol may be a di-ether of glycerine such as dimethyline or diethyline.  In an example, the neutral ester of diglycollic acid and butoxy-3-butanol-1 is ground into a paste with castor oil, zinc white, and titanium dioxide. Other examples describe the production of solutions for use as binding agents for printing or painting colours.  In addition to the diglycollic esters and cellulose esters or ethers, the solutions may contain resins such as a condensation product of glycerine, phthalic anhydride, and a fatty oil, and pigments such as zinc sulphide and titanium dioxide.  Specifications 251,303 and 316,324, [both in Class 70], are referred to.