Patent GB-592231-A (GB)
Title: Improvements in adhesives
IPC: C09J125/18
Filed: 1944-10-05
Abstract: An adhesive for bonding wood to wood, and wood to metals such as iron, steel, magnesium, aluminium and alloys thereof, comprises a copolymer of a conjugated diene and a nuclear halogenated styrene, in which the halogen is either chlorine or bromine, which may be prepared according to the methods described in Specification 570,596, using an appropriate chlorine or bromine substituted styrene.  The copolymer may be used either in the form of a concentrated latex to which may be added casein in aqueous solution, dilute alkalis, shellac in emulsion or solution, and dispersing agents such as the sodium salt of polymerized alkylaryl sulphonic acids, or in solution or suspension in a hydrocarbon such as gasoline, heptane, benzene or toluene, or an ester such as butyl acetate, or a ketone such as methyl ethyl ketone or halogenated solvents such as carbon tetrachloride or ethylene dichloride.  Other substances which may be added include resins such as rosin and ester gum, and synthetic resins such as phenol- and dihydroxybenzene-aldehyde resins; plasticisers such as tricresyl phosphate and butyl phthalate; preservatives such as formaldehyde, sodium phenolate and sodium resorcinate; soaps, fatty acids, antioxidants, stabilizers such as cyclohexanol; fillers such as pitch, bitumen, gas black and zinc oxide.  When the bond is to be vulcanized, sufficient sulphur or sulphur chloride is added to form a soft or hard bond together with accelerators such as mercaptobenzthiazole, tetramethylthiuramdisulphide or other dithiocarbamates.ALSO:An adhesive for bonding wood to wood, and wood to metals such as iron, steel, magnesium, aluminium and alloys thereof, comprises a copolymer of a conjugated diene and a nuclear halogenated styrene in which the halogen is either chlorine or bromine, which may be prepared according to the methods described in Specification 570,596, [Group IV], using an appropriate chlorine or bromine substituted styrene. The copolymer may be used either in the form of a concentrated latex to which may be added casein in aqueous solution, dilute alkalis, shellac in emulsion or solution, and dispersing agents such as the sodium salt of polymerized alkylaryl sulphonic acids, or in solution or suspension in a hydrocarbon such as gasoline, heptane, benzene or toluene, or an ester such as butyl acetate, or a ketone such as methyl ethyl ketone or halogenated solvents such as carbon tetrochloride or ethylene dichloride.  Other substances which may be added include resins such as rosin and ester gum, and synthetic resins such as phenol and dihydroxy-benzene aldehyde resins; plasticizers such as tricresyl phosphate and butyl phthalate; preservatives such as formaldehyde, sodium phenolate and sodium resorcinate; soaps, fatty acids, antioxidants, stabilizers such as cyclohexanol; fillers such as pitch, bitumen, gas black and zinc oxide.  When the bond is to be vulcanized, sufficient sulphur or sulphur chloride is added to form a soft or hard bond together with accelerators such as mercapto benzthiazole, tetramethylthiuramdisulphide or other dithiocarbamates.