Patent GB-809559-A (GB)
Title: Hardener paste for the polymerisation of organic compounds
IPC: C08F2/00
Filed: 1956-07-19
Abstract: Hardener pastes for the polymerization of unsaturated organic compounds comprise at least one organic peroxidic compound, at least one secondary or tertiary amine of formula R1-N (CH2SO2R11)2, where R1 is a hydrogen atom or an aliphatic radical, in which one or more hydrogen atoms may be substituted by aromatic radicals, or an aromatic radical and R11 is an aromatic radical in which one or more hydrogen atoms may be substituted by aliphatic radicals and/or halogen atoms, or an aliphatic radical, and an inert liquid. Specified peroxides are benzoyl peroxide, dichlorobenzoyl peroxide, cumene hydroperoxide and di-tert.-butyl diperphthalate.  Specified amines are (C6H5SO2CH2)2NH, (CH3C6H4SO2CH2)2NR, where R is H, CH3, C2H5, CH2C6H6 or C2H4C6H5, (ClC6H4SO2CH2)2NCH3 and (b  - naphthyl - SO2CH2)2NCH3.  Specified inert liquids are dibutyl phthalate, dioctyl phthalate, tricresyl phosphate and silicones.  The pastes may also contain small amounts of heavy metals or their compounds, e.g. copper naphthenate, and highly dispersed oxides of metals and metalloids, e.g. silica.  The pastes may be added to the polymerizable compositions shortly before use or added to one of the components thereof before mixing, and the polymerization effected in the presence of activators, e.g. b -phenylethyl-dibutylaminoacetic acid ethyl ester, b -phenylethyl-dibutylamine hydrochloride, triethylamine oxide hydrochloride, tetraethyl ammonium chloride, triethylaminoacetic acid ethyl ester and betaine hydrochloride.ALSO:Hardener pastes for the polymerization of unsaturated organic compounds comprise at least one organic peroxidic compound, at least one secondary or tertiary amine of formula R1-N(CH2SO2R11)2 where R1 is a hydrogen atom or an aliphatic radical, in which one or more hydrogen atoms may be substituted by aromatic radicals, or an aromatic radical and R11 is an aromatic radical in which one or more hydrogen atoms may be substituted by aliphatic radicals and/or halogen atoms, or an aliphatic radical, and an inert liquid.  Specified peroxides are benzoyl peroxide, dichlorobenzoyl peroxide, cumene hydroperoxide and ditert.-butyl diperphthalate. Specified amines are (C6H5SO2CH2)2NH, (CH3C6H4SO2CH2)2NR where R is H, CH3, C2H5, CH2C6H5 or C2H4C6H5, (ClC6H4SO2CH2)2NCH3 and (b -naphthyl - SO2CH2)2NCH3.  Specified inert liquids are dibutyl phthalate, dioctyl phthalate, tricresyl phosphate and silicones.  The pastes may also contain small amounts of heavy metals or their compounds, e.g. copper naphthenate, and highly dispersed oxides of metals and metalloids, e.g. silica.  The unsaturated compounds may be methyl acrylate, mixtures of vinyl acetate with acrylic acid, mixtures of styrene, acrylic acid and acrylonitrile containing polystyrene, and mixtures of unsaturated polyesters, e.g. derived from maleic anhydride and ethylene glycol and 1,2-propanediol, with styrene, methyl methacrylate and triallyl cyanurate.  The polymerization may be effected in the presence of activators, e.g. b -phenylethyldibutylaminoacetic acid ethyl ester chloride, b  - phenylethyl - dibutylamine hydrochloride, triethylamineoxide hydrochloride, tetraethylammonium chloride, benzyloxytriethylammonium chloride, triethylaminoacetic acid ethyl ester and betaine hydrochloride.  The pastes may be added to the polymerizable compositions shortly before use or added to one of the components thereof before mixing.