Patent GB-628622-A (GB)
Title: Process for the stabilisation of organic compounds of high molecular weight containing inorganic acid-forming elements
IPC: C08L27/02
Filed: 1947-01-09
Abstract: Halogenated organic compounds of high molecular weight are stabilized against the splitting off of acid by addition of ethers of b.p. above 300 DEG  C. containing at least two epoxyethyl groups and either at least two ether oxygen atoms or at least one benzene nucleus (which may be hydrogenated or hydrogenated and condensed) in the molecule (see Groups IV (a) and V).  Listed halogenated compounds include halogenated fats, train oils, mineral waxes and paraffins solid at room temperature.  Specified ethers are 1,4-bis-(2,3-epoxy - 1 - propoxy) - benzene, 1,3 - bis-(3,4 - epoxy - 1 - butoxy) - benzene, 1,3,5 - tris-(3,4 - epoxy - 1 - butoxy) - benzene, 1,3 - bis-(3,4 - epoxy - 1 - butoxy) - 5 - (2,3 - epoxy - 1-propoxy) - benzene, 2,5,7 - tris - (2,3 - epoxy - 1-propoxy) - decahydronaphthalene, 1,4 - bis-(2,3 - epoxy - 1 - propoxy - 4 - phenyl) - ether, 1,4 - bis - (2,3 - epoxy - 1 - propoxy) - cyclohexane, 1,3 - bis - (2,3 - epoxy - 1 - propoxy)-octane, bis - (epoxy - ethyl - 4 - phenyl) - ether, bis - (2,3 - epoxy - 1 - propyl - 4 - phenyl) - ether and halogen substitution products thereof.ALSO:Halogen-containing organic compounds of molecular weight of at least 162 are stabilized against the splitting off of acid by addition of ethers of b.p. above 300 DEG C. containing at least two epoxy-ethyl groups and either at least two ether oxygen atoms or at least one benzene nucleus (which may be hydrogenated or hydrogenated or condensed) per molecule.  Listed ethers are 1.4-bis-(2.3-epoxy-1-propoxy)-benzene, 1.3-bis-(3.4-epoxy-1-butoxy)-benzene, 1.3.5-tris-(3.4-epoxy-1-butoxy)-benzene, 1.3-bis-(3.4-epoxy-1-butoxy)-5-(2.3-epoxy-1-propoxy)-benzene, 2.5.7-tris-(2.3-epoxy-1-propoxy)-decahydronaphthalene, 1.4 - bis - (2.3 - epoxy - 1 - propyl - 3.5 - diethoxy - benzene, bis-(2.3-epoxy- 1-propoxy -4-phenyl)-ether, 1.4-bis-(2.3-epoxy - 1 - propoxy) - cyclohexane, 1.3 - bis - (2.3 - epoxy - 1 - - propoxy)-cyclopentane, 1.8 - bis - (2.3 - epoxy - 1 -propoxy)-octane, bis-(epoxy-ethyl-4-phenyl)-ether, bis-(2.3-epoxy-1-propyl-4-phenyl)-ether, and halogen substitution products thereof.  Specified halogenated organic compounds are polymers and copolymers of vinyl halides, vinylidene halides, halogenated dienes, vinyl halide acetates, halogen acrylonitriles and methacrylonitriles, the halogenated reaction products thereof and halogenated polymers and copolymers of alkenes, dienes, acetylene hydrocarbons, vinyl acetylenes, diacetylenes and derivatives thereof.ALSO:Halogenated organic compounds of high molecular weight, e.g rubber and synthetic rubber, are stabilised against the splitting off of acid by addition of ethers of b.p. above 300 DEG  C., containing at least two epoxy-ethyl groups and either at least two ether oxygen atoms or at least one benzene nucleus (which may be hydrogenated or hydrogenated and condensed) per molecule, (see Groups III and IV (a)) Listed ethers are 1.4 bis (2.3.epoxy-1.propoxy)-benzene, 1.3.bis (3.4.epoxy-1.butoxy)-benzene, 1.3.5. tris (3.4.epoxy-1.butoxy)-benzene, 1.3.bis (3.4.epoxy-1.butoxy)-5 (2.3.epoxy-1.propoxy)-benzene,2.5.7. tris (2.3.epoxy-1.propoxy)-decahydronaphthalene, 1.4 bis (2.3.epoxy-1,propyl)-3.5. diethoxy-benzene, bis (2.3 epoxy-1.propoxy-4.phenyl)-ether, 1.4.bis (2.3 epoxy-1. propoxy)-cyclohexane, 1.3.bis (2.3.epoxy-1.propoxy)-cyclopentane, 1.8.bis (2.3.epoxy-l.propoxy)-octane, bis (epoxy-thyyl-4 phenyl) other, bis (2.3.epoxy -1. propyl.4.phenyl) ether and halogen subsitiution products thereof.  Specified halogenated compounds include halogenated natural rubber, gutta percha, balata, polymerisation and copolymerisation products of dienes, acetylene hydrocarbons, vinyl acetylene and diacetylene hydrocarbons and their derivatives.