Abstract:
A method for producing low-dust stabiliser systems for thermal stabilisation of PVC, whereby said stabiliser systems consist of the following components: (a1) stabilisers, (a2) lubricating agents, and (a3) optionally other additives. The invention is characterised in that the components a1, a2 and optionally a3 are homogeneously mixed by a suitable device (V1) and are then pressed into granulates or cast by means of a suitable device (V2).
Abstract:
The invention relates to a stabilising agent mixture containing: (a) at least one compound of general formula (I), in which B represents a bridge -(R ) C=N- or -N=C(R )-; R is identical to L' or a group -(R2N)C=C(L')2, whereby the two radicals R and L' respectively can be identical or different from one another; L' represents -CN, -COR, COOR, -SO2R; L represents oxygen, =NR or sulphur and R , R and R represent independently of one another hydrogen, C1-C24 alkyl; C2-C24 alkenyl; C2-C24 alkynyl; C2-C8 alkoxyalkyl; optionally substituted C3-C12 cycloalkyl or C6-C20 aryl; an optionally substituted five- or six-membered heterocylic radical containing at least one heteroatom selected from the group consisting of oxygen, nitrogen and sulphur; (b at least one compound selected from the group consisting of organic phosphites, organic phosphines and organic phosphonites; (c) optionally at least one compound selected from the group consisting of sterically hindered phenols; (d) optionally at least one compound selected from the group consisting of sterically hindered amines; (e) optionally at least one compound selected from the group of chromans; and (f) optionally at least one organic or inorganic salt selected from the group consisting of zinc salts, calcium salts, magnesium salts, cerium salts, iron salts and manganese salts. The invention also relates to non-living organic material, which contains an effective quantity of the inventive stabilising agent mixture, to objects, which are produced from materials stabilised in this manner, in addition to a method for stabilising non-living organic material against the negative influence of oxygen, heat and/or light, by adding an effective quantity of the inventive stabilising agent to the non-living organic material.
Abstract:
A method for the production of polyolefins which are subjected to the effect of water and stabilized against visible and ultraviolet light, wherein light stabilizers are added to the polyolefin. The inventive method is characterized in that the light stabilizers are selected from the following compounds a) d): a) cyanoacrylic acid esters of formula 1, b) 4,4 diarylbutadienes of formula II, c) benzophenones of formula III, d) cinnamic acid esters of formula IV, the variables having the meaning cited in the description.
Abstract:
Stabilised thermoplastic moulded masses, comprising (A) at least one polyolefin A), produced by application of at least one metallocene catalyst and (B) at least one stabiliser B), selected from the following groups b1) bis b4): (b1) sterically hindered amines based on glycolurils, (b2) sterically hindered amines based on 4-formylaminopiperidines, (b3) sterically hindered amines based on maleic acid imide/ alpha -olefin copolymers and (b4) sterically hindered amines selected from particular individual compounds.
Abstract:
A method for the production of polyolefins which are subjected to the effect of water and stabilized against visible and ultraviolet light, wherein light stabilizers are added to the polyolefin. The inventive method is characterized in that the light stabilizers are selected from the following compounds a) d): a) cyanoacrylic acid esters of formula 1, b) 4,4 diarylbutadienes of formula II, c) benzophenones of formula III, d) cinnamic acid esters of formula IV, the variables having the meaning cited in the description.
Abstract:
Disclosed is a stabilizer composition comprising A) at least one nitrogen compound having a molecular weight of at least 150, selected from a secondary amine, wherein all substituents in the alpha position in relation to the amine-nitrogen atom are different from hydrogen, or a tertiary amine derived from a secondary amine, hydroxyl amine, alkoxyl amine or amide; and at least one iron compound. The stabilizer composition optionally contains nitroxyl radicals. Said composition is suitable for stabilizing inanimate organic material, especially styrene polyolefins or homopolymers or copolymers, against the effects of light, heat or oxygen.