POLYMERIC COMPOSITION

FIELD: chemistry of polymers. SUBSTANCE: polymeric composition comprises polyethylene and 4-alkoxy-2-hydroxybenzophenone as light stabilizer, composition comprises lower-pressure polyethylene or mixture thereof with high-pressure polyethylene at 24: 1 ratio, 3,5-di-tert-butyl-4-hydroxyphenylpropioni...

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Hauptverfasser:	CHERNOV V.A, DEBERDEEV R.JA, MEDVEDEVA CH.B, MUKMENEVA N.A, STOJANOV O.V, NIGMATULLIN V.A, SOPIN V.F, TAMBIEVA O.A, VAKHBREJT A.Z, IVANOV L.A, SABIROV R.A, RUSANOVA S.N, JARULLIN R.S, GABUTDINOV M.S, CHEREVIN V.F, UGOL'NIKOV O.G, PESKOVA V.I, ZHUKOVA A.V
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	FIELD: chemistry of polymers. SUBSTANCE: polymeric composition comprises polyethylene and 4-alkoxy-2-hydroxybenzophenone as light stabilizer, composition comprises lower-pressure polyethylene or mixture thereof with high-pressure polyethylene at 24: 1 ratio, 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid and pentaerythritol ester and tris (2,4-di-tert- butylphenyl)phosphite as thermostabilizers, and calcium salt such as 1-(3-sulfophenyl)-3-methyl-4-azo-(3,4- dichloro-6-sulfophenyl)pyrazone-5 as light stabilizer, ratio of components being as follows, wt %: low-pressure polyethylene or mixture thereof with high-pressure polyethylene at 24:1 ratio, 98.55-99.57; 4-alkoxy-2- hydroxybenzophenone, 0.125-0.75; 3,5-di-tert-butyl-4- hydroxychenylpropionic acid ester and pentaerythrite ether, 0.09-0.1; tris (2,4-di-tert-butylphenyl)phosphite, 0.09-0.1; calcium salt, such as 1-(3-sulfophenyl)-3- methyl-4-azo-(3,4-dichloro-6-sulfophenyl)pyrazone-5-, 0.121-0.75. EFFECT: improved resistance of composition to light aging. 6 ex, 1 tbl