摘要:
A synergistic stabilizer mixture comprising a component a) and, for example, a component b), where component a) is at least one compound of the formula I in which R1 is hydrogen or methyl, R2 is a direct bond or C1-C10alkylene, and n1 is a number from 2 to 50; component b) is at least one compound of the formulae IIa and IIb in which n2 and n2* are a number from 2 to 50.
摘要:
A stabilizer mixture containing the components (A) and (B) wherein component (A) is for example a compound of the formula (A-1) wherein A1 is hydrogen or C1-C4alkyl, A2 is a direct bond or C1-C10alkylene, and n1 is a number from 2 to 50; and component (B) is formed by two different low molecular weight sterically hindered amine compounds containing a group of the formula (I) or (II); with the proviso that components (A) and (B) are different.
摘要:
A stabilizer mixture containing (I) one low molecular weight alkylated sterically hindered amine compound; and (II) one high molecular weight alkylated sterically hindered amine compound.
摘要:
A stabilizer mixture containing A) for example at least one compound of the formula (I) wherein the radicals R1, independently of one another, are hydrogen, C1–C8alkyl, —O−, —CH2CN, C3–C6alkenyl, C7–C9phenylalkyl, C7–C9phenylalkyl which is substituted on the phenyl radical by C1–C4alkyl; or C1–C8acyl; and B) magnesium oxide, magnesium hydroxide, zinc oxide, zinc hydroxide or an organic salt of zinc or magnesium, or a hydrotalcite; and C) either (C1) an UV absorber or (C2) a pigment or (C3) an UV absorber and a pigment. Such a stabilizer mixture is particularly useful for stabilizing a polyolefin against light-induced degradation.
摘要:
A stabilizer mixture containing the components (A), (B) and (C) wherein component (A) is for example a compound of the formula (A-1) wherein A1 is hydrogen or C1-C4alkyl, A2 is a direct bond or C1-C10alkylene, and n1 is a number from 2 to 50; component (B) is a low molecular weight sterically hindered amine compound containing a group of the formula (I) or (II); and component (C) is a high molecular weight sterically hindered amine compound containing a group of the formula (I); with the proviso that components (A), (B) and (C) are different.
摘要:
The novel transparent polyolefin, polyester or polyamide article disclosed is stabilized against the effects of light, oxygen, heat and agressive chemicals by addition of 0.005-0.30% by weight the polymeric substrate of a hydroxyphenyl triazine UV absorber, and is characterized by its thickness between 1 and 500 μm. Preferred polyolefin articles thus stabilized are agricultural films containing as further stabilizer a sterically hindered amine. The novel compositions act as selective UV filter especially useful in agriculture.
摘要:
A stabilizer mixture containing (A) a sterically hindered amine compound, (B) an organic salt of Ca or an inorganic salt of Ca and (C) an organic salt of Mg, an inorganic salt of Mg, an organic salt of Zn or an inorganic salt of Zn; with the proviso that component (C) is Mg-hydroxide-carbonate, Zn-hydroxide-carbonate or dolomite, when component (B) is calcium stearate.
摘要:
A synergistic stabilizer mixture comprising a component a) and, for example, a component b), where component a) is at least one compound of the formula I in which R1 is C1-C10alkyl, C5-C12cycloalkyl, C1-C4alkyl-substituted C5-C12cycloalkyl, phenyl or C1-C10alkyl-substituted phenyl, R2 is C3-C10alkylene, R3 is hydrogen, C1-C8alkyl, O, —CH2CN, C3-C6alkenyl, C7-C9phenylalkyl, C7-C9phenylalkyl which is substituted on the phenyl radical by C1-C4alkyl; or C1-C8acyl, and n1 is a number from 1 to 50, and component b) another HALS compound.
摘要:
A mixture for stabilizing polyolefins containing A) either (A1) at least one compound of the formula in which R1 is for example C1-C10alkyl; R2 is C3-C10alkylene; R3 is for example hydrogen or C1-C8alkyl; and n1 is a number from 2 to 50; or (A2) a product obtainable by reacting a product—obtained by reaction of a polyamine of the formula in which n2′, n2″ and n2′″ are a number from 2 to 12 with cyanuric chloride—with a compound of the formula wherein R4 is for example hydrogen or C1-C12alkyl; and R5 is as defined for R3 and B) magnesium oxide, magnesium hydroxide, C) zinc oxide, zinc hydroxide or an organic salt of zinc or magnesium, or a hydrotalcite; and at least one of C1) an UV absorber or C2) 2 pigment.
摘要:
The instant invention relates to a polyolefin composition which comprises d) at least one organic pigment e) at least one sterically hindered amine light stabilizer and f) as UV absorber a mixture of a 2-hydroxyphenyl benzotriazole and a 2-hydroxyphenyl-s-triazine. Further objects of the invention are a method for stabilizing pigmented polyolefins and the use of a UV-absorber mixture of a hydroxyphenyl benzotriazole with a hydroxyphenyl-s-triazine for the stabilization of pigmented polyolefins.