Patent GB-999088-A (GB)
Title: Vinyl chloride polymer compositions
IPC: C08K5/00
Filed: 1964-02-21
Abstract: Curable coating compositions comprise (A) a resin component containing polyvinyl chloride or a copolymer containing at least 50% by weight of polymerized vinyl chloride, (B) a plasticizer, (C) a non-volatile chlorinated hydrocarbon, and (D) one or more diacrylate or dimethacrylate esters of polyhydric alcohols containing a chain of 2 to 16 carbon atoms which may, if desired, be interrupted by one or more ether oxygen atoms.  The preferred polymer is polyvinyl chloride.  Specified plasticizers are dioctyl phthalate, dioctyl sebacate, triphenyl phosphate and tricresyl phosphate.  Specified chlorinated hydrocarbons are chlorinated paraffins, chlorinated naphthalenes and chlorinated diphenyls. Specified diesters are the diacrylates and dimethacrylates of mono-, di-, tri- and tetraethylene glycols, propane diol and butane diol.  The compositions may also contain monoacrylic or monomethacrylic esters of alcohols which contain a further reactive group such as hydroxy, chloro, cyano or carboxy, e.g. ethylene glycol or propanediol monoacrylate or monomethacrylate, or b -cyanoethyl or b -chlorethyl monoacrylate or monomethacrylate; polymerizable compounds containing free carboxyl groups, e.g. maleic, fumaric, acrylic or methacrylic acid; polymerization accelerators, e.g. t-butyl perbenzoate, t-butyl peroctoate, mono-t-butyl permaleinate and azodicyclohexyldinitrile; and pigments, dyestuffs and fillers, e.g. chalk or polymethyl methacrylate.  The compositions may be used for coating metals, e.g. iron, aluminium and copper, for use in escalators, guard rails, handles, switches and technical instruments.  Examples describe compositions comprising polyvinyl chloride, dibutyl tin dilaurate, diisooctylphthalate, chlorinated paraffin and (1) and (2) 1,4-butane diol dimethacrylate; (8) tetraethylene glycol dimethacrylate; and 1,4-butane diol dimethacrylate together with (3) glycol monoacrylate, (4) b -cyanoethyl methacrylate, (5) b -chlorethyl methacrylate, (6) maleic acid and (7) chalk.ALSO:Metals, e.g. iron, aluminium and copper, are coated with curable coating compositions comprising (A) a resin component containing polyvinyl chloride or a copolymer containing at least 50% by weight of polymerized vinyl chloride, (B) a plasticizer, (C) a non-volatile chlorinated hydrocarbon, and (D) one or more diacrylate or dimethacrylate esters of polyhydric alcohols containing a chain of 2-16 carbon atoms which may if desired be interrupted by ether oxygen atoms.  The preferred polymer is polyvinyl chloride.  Specified plasticizers are dioctyl phthalate, dioctyl sebacate, triphenyl phosphate and tricresyl phosphate. Specified chlorinated hydrocarbons are chlorinated paraffins, chlorinated naphthalenes and chlorinated diphenyls. Specified diesters are the diacrylates and dimethylacrylates of mono-, di-, tri- and tetraethylene glycols, propane diol and butane diol.  The compositions may also comprise monoacrylic and monomethacrylic esters of alcohols which contain a further reactive group such as hydroxy, chloro, cyano or carboxy, e.g. ethylene glycol or propane diol monoacrylate or monomethacrylate, or b -cyanoethyl or b -chloroethyl acrylate or methacrylate; polymerizable compounds containing free carboxyl groups, e.g. maleic, fumaric, acrylic or methacrylic acid; polymerization accelerators, e.g. t-butyl perbenzoate, t-butyl peroctoate, mono-t-butyl permaleinate and azodicyclohexyldinitrile; and pigments, dyestuffs and fillers, e.g. chalk and polymethyl methacrylate.  In examples degreased iron sheets are coated with compositions comprising polyvinyl chloride, dibutyl tin dilaurate, diisooctyl phthalate, chlorinated paraffin and (1 and 2) 1,4-butanediol dimethacrylate; (8) tetraethylene glycol dimethacrylate; and 1,4-butanediol dimethacrylate together with (3) glycol monoacrylate, (4) b -cyanoethyl methacrylate, (5) b -chloroethyl methacrylate, (6) maleic acid, and (7) chalk.