Patent GB-1413172-A (GB)
Title: Stabilisation of polymers
IPC: C08K5/3492
Filed: 1972-02-16
Abstract: 1413172 Stabilizing polymers IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Feb 1973 [16 Feb 1972] 7157/72 Heading C3P [Also in Division C2] Polymers are stabilized with aryloxy-striazine compounds of formula where n is 1, 2 or 3 and when n is 1 R is chlorine, bromine, hydroxyl, alkyl, chloro-, bromo- or fluoro-alkyl, alkoxy, mono- or dialkylamino, benzylamino, morpholino or OX; when n is 2 R is alkylene-α, #-diamino or alkylene-α,# dioxy in which the alkylene may be interrupted by heteroatoms, or arylene dioxy which may be substituted by alkyl or chlorine; and when n is 3 R is arylene trioxy which may be substituted by alkyl or chlorine; and X, Y and Z are unsubstituted aryl groups or aryl groups having one or more alkyl, alkoxy, cycloalkyl, chlorine or bromine substituents. The polymer may be a polymer of ethylene, propylene, 4-methylpentene-1 or vinyl chloride, optionally plasticized. The compositions may also contain conventional stabilizers and other compounding ingredients, and examples describe the stabilizing of polypropylene containing calcium stearate, 1,1,3 - tris(2<SP>1</SP> - methyl - 41 - hydroxy - 5<SP>1</SP> - tbutylphenyl) butane and dilauryl thiodipropionate with (1) 2,4-bis-(2<SP>1</SP>,6<SP>1</SP>-dimethylphenoxy) - 6 - chlorotriazine, (2) 2,4 - bis - (2<SP>1</SP>,4<SP>1</SP>,6<SP>1</SP>- trimethylphenoxy) - 6 - chlorotriazine, (3) 2,4,6 - tris(2<SP>1</SP>,6<SP>1</SP> - dimethylphenoxy) - triazine, (4) 2,4,6 - tris(2<SP>1</SP> - t - butylphenoxy) - triazine, (5) 2,4,6 - tris(2<SP>1</SP>,4<SP>1</SP> - dimethylphenoxy)- triazine, (6) 2,4,6-tris(4<SP>1</SP>-chloro-2<SP>1</SP>,6<SP>1</SP>-dimethylphenoxy)triazine, (7) 2,4 - bis - (31 - pentadecylphenoxy)-6-chlorotriazine, (8) 2,4,6-tris (3<SP>1</SP>-pentadecylphenoxy) triazine, (9) 2,4-bis-(2<SP>1</SP>,6<SP>1</SP>-dimethyl - 4<SP>1</SP> - methoxyphenoxy) - 6 - chlorotriazine, (10) 2,4,6 - tris(2<SP>1</SP>,6<SP>1</SP> - dimethyl - 41 - methoxyphenoxy)triazine, (11) 2,4-bis-(2<SP>1</SP>,6<SP>1</SP>-dimethylphenoxy) - 6 - (2<SP>11</SP>,4<SP>11</SP>,6<SP>11</SP> - trimethylphenoxy)- triazine, (12) 1,4 - bis - [4<SP>1</SP>,6<SP>1</SP> - bis - (2<SP>11</SP>,6<SP>11</SP>- dimethylphenoxy) - triazin - 2<SP>1</SP> - yloxy]benzene, (13) 2,4 - bis - (2<SP>1</SP>,6<SP>1</SP> - dimethylphenoxy) - 6- methoxytriazine, (14) 2 - ethyl - 4,6 - bis - (2<SP>1</SP>,6<SP>1</SP>- dimethylphenoxy)triazine, (15) 2,4 - bis - (2<SP>1</SP>,6<SP>1</SP>- dimethyl - 4<SP>1 </SP>- t - octylphenoxy) - 6 - chlorotriazine, (16) 2,4 - bis - (2<SP>1</SP>,6<SP>1</SP> - dimethylphenoxy) - 6 - benzylamino, -6 - n - butylamino, -6 - isopropylamino and -6 - morpholinyltriazines, (20) 1,3,5 - tris[4<SP>1</SP>,6<SP>1</SP> - bis - (2<SP>11</SP>, 6<SP>11</SP>- dimethylphenoxy) - 1<SP>1</SP>,3<SP>1</SP>,5<SP>1</SP> - triazinyl - 2<SP>1</SP> - oxy]- benzene, (21) 2,4 - bis - (2<SP>1</SP>,6<SP>1</SP> - dimethylphenoxy) - 6 - dimethylaminotriazine, (22) 2,4,6- tris(2<SP>1</SP>,4<SP>1</SP>,6<SP>1</SP> - trimethylphenoxy)triazine and (24) 1,2 - bis - [4<SP>1</SP>,6<SP>1</SP> - bis - [2<SP>11</SP>,6<SP>11</SP> - dimethylphenoxy] -2<SP>1</SP>-triazinylamino]ethane.