Patent GB-455217-A (GB)
Title: Improved solvent, softening and swelling agents
IPC: C08K5/10
Filed: 1935-03-14
Abstract: As dissolving or softening agents in the preparation of paints, lacquers, &c. there are used esters of completely hydrogenated aromatic compounds which contain at least two nuclear hydroxyl groups and at least ten carbon atoms.  The esters are used with the following paint and lacquer bases: cellulose derivatives, resins, thickened oils, rubber, asphalt, and caseinate.  In particular, the esters are derived from hydrogenated dihydroxy benzenes or naphthalenes substituted with higher alkyl residues, or from hydrogenated dihydroxy compounds of diaryls, diarylmethanes and diarylalkanes, in particular, hydrogenated 4 : 4<1>-dihydroxydiphenyl and 2 : 2<1>-dihydroxy-1 : 1<1>-dinaphthyl, or from the hydrogenated products resulting from the condensation of aromatic compounds containing nuclear substituted hydroxyl groups with aldehydes and ketones, such as the perhydrogenated diphenylmethane derivative of the product obtained from formaldehyde and cresol, and also hydrogenated 2 : 6-bis-(2<1>-hydroxy-5<1>-methylbenzyl)-4-methylphenol. The acid radicles of the esters include a wide range of aliphatic and aromatic acids and substituted acids, and also inorganic acids such as boric and phosphoric acids.  In examples, a lacquer for protecting metal comprises collodion cotton, the condensation product of phthalic anhydride and hydrogenated 4 : 4<1>-dihydroxyditolylmethane, the di-ester of lactic acid and hydrogenated dihydroxyditolylmethane; a cellulose acetate lacquer contains as an addition the condensation product of adipic acid and the perhydrogenated product of the condensation of formaldehyde and cresol; a nitrocellulose lacquer contains as an ingredient hydrogenated 4 : 4<1>-dihydroxyditolyl-methane, the solvent medium being alcohol, butanol, butyl acetate, toluene, xylene and ethyl glycol; a colour fixing emulsion is obtained by incorporating with water, alkali caseinate, linseed stand oil and decahydronaphthalene, the product obtained by heating perhydrogenated 4 : 4<1> - dihydroxyditolylmethane with phthalic anhydride, linseed oil and boric acid.  Specifications 432,404 and 451,278 are referred to.ALSO:As dissolving or softening agents in the preparation of paints, lacquers &c. there are used esters of completely hydrogenated aromatic compounds which contain at least two nuclear hydroxyl groups and at least ten carbon atoms.  The esters may be used with the following paint and lacquer bases:--resins, thickened oils, rubber, asphalt and caseinate.  In particular, the esters are derived from hydrogenated dihydroxy benzenes or naphthalenes substituted with higher alkyl residues, or from hydrogenated dihydroxy diaryls, diarylmethanes and diarylalkanes, in particular, hydrogenated 4 : 4<1>-dihydroxydiphenyl and 2 : 2<1>-dihydroxy-1 : 1<1>-dinaphor from the hydrogenated products resulting from the condensation of aromatic compounds containing nuclear substituted hydroxyl groups with aldehydes or ketones, such as the perhydrogenerated diphenylmethane derivative of the product obtained from formaldehyde and cresol, and also hydrogenated 2 : 6-bis-(2<1>-hydroxy - 5<1>- methylbenzyl) - 4 - methylphenol.  The acid radicles of the esters include a wide range of aliphatic and aromatic acids and substituted acids, and also inorganic acids such as boric and phosphoric acids.  For an example, a colour fixing emulsion is obtained by incorporating with water, alkali caseinate, linseed stand oil and decahydronaphthalene, the product obtained by heating perhydrogenated 4 : 4<1>-dihydroxyditolylmethane with phthalic anhydride, linseed oil, and boric acid.