Patent GB-585601-A (GB)
Title: Improvements relating to coating compositions
IPC: C09D157/02
Filed: 1944-06-15
Abstract: A coating composition comprises a mixture of unsaturated and saturated hydrocarbons derived from waste products of mineral oil refining and boiling from 160 to 360 DEG C. at 12mm. Hg. absolute pressure, the proportion of unsaturated hydrocarbons in the mixture being at least 84 per cent. by weight, a resin and/or an oil and/or a chlorinated rubber, the relative proportions of the constituents being such that a coating of the composition will dry in air or on baking.  A siccative is also preferably present.  The hydrocarbons are prepared by neutralizing acid sludge and fractionating the organic constituents thereof under vacuum to eliminate those boiling outside the given range.  Specified film forming constituents are chlorinated rubber, dammar, rosin, soya bean oil, dehydrated castor oil, tung oil, perilla oil, stand oil, linseed oil, oiticica oil and china wood oil.  Solvents such as petroleum hydrocarbon solvents, toluene and white spirits may also be present.  Specified siccatives are lead, cobalt and manganese driers especially the naphthenates. An example discloses a composition consisting of chlorinated rubber, toluene and the hydrocarbons.  Specification 497,402 is referred to.ALSO:A coating composition comprises a mixture of unsaturated and saturated hydrocarbons derived from the waste products of mineral oil refining and boiling from 160 DEG  to 360 DEG  C. at 12 mm. Hg absolute pressure, the proportion of unsaturated hydrocarbons in the mixture being at least 84 per cent by weight, a resin and/or an oil and/or a chlorinated rubber, the relative proportions of the constituents being such that the composition will dry in air or on baking.  A siccative is also preferably present.  The hydrocarbons are prepared by neutralizing acid sludge and fractionating the organic constituents thereof under vacuum to eliminate those boiling outside the range given.  Specified film-forming constituents are chlorinated rubber, dammar, rosin, soyabean oil, dehydrated castor oil, tung oil, perilla oil, stand oil, linseed oil, oiticica oil, china wood oil, alkyd resins, modified alkyd resins, and oil-soluble phenolic resins.  Solvents such as petroleum hydrocarbon solvents, toluene and white spirits may also be present.  Specified siccatives are lead, cobalt and manganese driers especially the naphthenates. Examples disclose compositions containing the hydrocarbons and (1) a modified alkyd resin, oiticica oil, stand oil and white spirits; (2) a modified phenol-formaldehyde resin, soyabean oil, stand oil, white spirits and lead, cobalt and manganese driers; (3) amylophenol resin, oiticica oil, stand oil, white spirits and cobalt drier; (4) a phenol-aldehyde resin, perilla oil, white spirits and lead and cobalt driers; (5) and (6) a phenol-aldehyde resin, chinawood oil, white spirits and cobalt drier; (7) a phenol-aldehyde resin, tung oil, a petroleum solvent and lead and cobalt naphthenates and a manganese drier; (8) as in (7) omitting the manganese drier; (9) "Beckacite" (Registered Trade Mark), petroleum solvent, linseed oil-stand oil, cobalt and lead naphthenates; and (10) "Bakelite" (Registered Trade Mark), tung oil, perilla oil and petroleum solvent.  Specification 497,402, [Group III], is referred to.