Abstract:
The invention relates to the use of fine-particle polymer powders, containing at least one UV absorber for the stabilisation of polymers, in particular, polyolefins, against the effects of UV radiation. The invention further relates to stabiliser mixtures for the stabilisation of polymers against the effects of UV radiation, oxygen and heat, comprising, amongst others, said polymer powders and a method for the stabilisation of polymers, in particular, polyolefins against the effects of UV radiation, oxygen and heat, characterised in that effective amounts of said stabiliser mixtures are added to the polymers, in particular, the polyolefins. Furthermore, the invention relates to polymers stabilised against the effects of UV radiation, oxygen and heat, in particular, polyolefins, which comprise an effective amount of said polymer powders or stabiliser mixtures and objects produced from said stabilised polymers in particular, polyolefins.
Abstract:
The invention relates to the use of fine-particle polymer powders, containing at least one UV absorber for the stabilisation of polymers, in particular, polyolefins, against the effects of UV radiation. The invention further relates to stabiliser mixtures for the stabilisation of polymers against the effects of UV radiation, oxygen and heat, comprising, amongst others, said polymer powders and a method for the stabilisation of polymers, in particular, polyolefins against the effects of UV radiation, oxygen and heat, characterised in that effective amounts of said stabiliser mixtures are added to the polymers, in particular, the polyolefins. Furthermore, the invention relates to polymers stabilised against the effects of UV radiation, oxygen and heat, in particular, polyolefins, which comprise an effective amount of said polymer powders or stabiliser mixtures and objects produced from said stabilised polymers in particular, polyolefins.
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:
Compositions containing 1,3-bis-[2-cyano-3,3-diphenyl-acryloyl)oxy]-2,2-bis-{[ (2-cyano-3,3-diphenylacryloyl)oxy]methyl}-propane and benzophenone derivative(s) with hydroxy and/or organyloxy group(s) are used as UV stabilizers which are effective at up to 400 nm in visibly transparent thermoplastic molding materials for UV-protective packaging. The use of stabilizer compositions (SC) containing 1,3-bis-[(2-cyano-3,3-diphenylacryloyl)oxy]-2,2-bis-{[2-cyano-3,3-diphenylacryloyl)oxy]methyl}-propane (II) and benzophenone-type UV stabilizer(s) of formula (I) which are effective at up to 400 nm, in thermoplastic molding materials with a glass transition point (Tg) above 20[deg]C and light transmission values of not more than 20% at 300-370 nm and not less than 80% at 410-800 nm (in the stabilized material), for packaging to protect products against the action of light. [Image] one of the groups R1>-R5> and R1>->R5>OR6> and the others = R6>, OR6>, COOR6>, COO-> M+>, CONR6>R7>, SO3R6>, SO3-> M+> or NR6>R7>; R6>, R7>H, alkyl, alkenyl, cycloalkyl, cycloalkenyl, heterocycloalkyl, aryl or heteroaryl; M : a cation equiv. Independent claims are also included for (1) a method for protecting packaged products from the effects of UV light by using thermoplastic molding materials containing (SC) in the production of the packaging (2) thermoplastic molding materials containing (SC) (3) packaging containing such thermoplastic molding material.
Abstract:
A description is given of the use of naphthalene-1,8-dicarboxylic monoimides of the formula (I), in which R is hydrogen, alkyl, alkenyl, cycloalkyl, cycloalkenyl, heterocycloalkyl, aryl or heteroaryl and R is a radical containing at least one pi electron system containing a carbon atom and at least one further atom selected from carbon, oxygen, and nitrogen, with the proviso that the radical contains at least one atom other than carbon; to protect organic material from the damaging effects of light, of compositions which comprise at least one naphthalene-1,8-dicarboxylic monoimide of the formula (I) in an amount which provides protection from the damaging effects of light, and at least one organic material, and of new naphthalene-1,8-dicarboxylic monoimides (I).
Abstract:
The invention relates to the use of pyridindione derivatives of general formula (I) and optionally the tautomers thereof, wherein R1 is hydrogen, possibly substituted and/or possibly heteroatoms containing alkyl, alkenyl o r alkynyl or possibly substituted and/or heteroatoms containing cycloalkyl, cycloalkenyl, heterocycloalkyl, aryl or heteroaryl; R2, independently of R1, is R1 or NR4R5; R4 and R5 independently of each other and of R1, are R1 or COR6, A is CN, COR7, COOR7 or CONR7R8; R6, R7, R8 independently of each othe r and of R1, are R1, n is values for 1, 2, 3 or 4; R3 for n equal to 1 is hydrogen, possibly substituted and/or possibly heteroatoms containing alkyl, alkenyl or alkynyl or possibly substituted and/or heteroatoms containing cycloalkyl, cycloalkenyl, heterocycloalkyl and for n unequal to 1 is n-valen t possibly heteroatoms containing aliphatic or cycloaliphatic residue. Compositions containing a quantity of at least one type of pyridindione derivative of formula (I) protecting an organic material against detrimental effects of light, at least one type of organic material and pyridindione derivatives of formula (I) are also disclosed.
Abstract:
Naphthalene-1,8-dicarboxylic monoimides for protecting organic material from the damaging effects of light is new. Naphthalene-1,8-dicarboxylic monoimides of formula (I) is new. [Image] R 1>H, alkyl, alkenyl, cycloalkyl, cycloalkenyl, heterocycloalkyl, aryl, or heteroaryl;and R 2>radical containing pi electron system(s) containing a carbon atom and further atom(s) from C, O, and N with the proviso that the radical contains atom(s) other than carbon. Independent claims are also included for: (a) a polymer composition comprising naphthalene-1,8-dicarboxylic monoimide(s) in an amount that provides protection from the damaging effects of light, and organic material(s); and (b) a process for protecting organic material from the damaging effects of light comprising adding to the material naphthalene-1,8-dicarboxylic monoimide.