Abstract:
PROBLEM TO BE SOLVED: To obtain the subject polyurethane excellent in reactivity and mechanical characteristics, by reacting an isocyanate with a polyol containing a polyether polyalcohol having a specific structural unit, molecular weight and degree of unsaturation. SOLUTION: This polyurethane is obtained by reacting an isocyanate with,2 polyol having a molecular weight of 500-1000, including at least one kind of polyether polyol (preferably, including 5-30 wt.% ethylene group, based on the total weight of all polyoxyalkylene groups and having a hydroxyl number of 10-230 mgKOH/mol and functionality of 1.9-3.0) having a molecular weight of 500-10000 g/mol, degree of unsaturation of
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject composition having a long shelf life of a phosphorus compound and slight corrosiveness for metals by including the phosphorus compound and a specific stabilizer. SOLUTION: This composition is obtained by including (A) at least one kind of phosphorus compound [preferably resorcinol bis(diphenyl phosphate) or the like] and (B) at least one kind of stabilizer which is a compound represented by any of formulae I to IV [R1 to R3, R5 to R12 and R17 are each H, a 1-10C alkyl, a 6-12C aryl or the like; (a) and (b) are each 1-5; (c) and (d) are each 0-10; (e) is 1-4; (f) and (h) are each 1-100; R4 and R13 are each a group of NCO or NHCOOR'; R' is an alkylpolyether glycol or the like; (g) is 0-5; R14 to R16 are each H, a group of (CH2)1-N=C=O or the like; and (l) is 1-20] (e.g. a compound represented by formula V). The amounts of the components based on the composition are preferably 99.99-80 mass % of the component A and 0.01-20 mass % of the component B.
Abstract:
The invention relates to a thermoplastic polyurethane containing noble metal salts, preferably salts of gold, silver, mercury, platinum, ruthenium, rhodium, palladium, osmium and/or iridium, preferably, in addition to the noble metal salts, at least one salt of an element of the fourth and/or fifth sub-group in the periodic table of the elements, especially, preferably as noble metal salts, silver salts, especially AgNO3 and/or AgCI. The invention also relates to animal ear marks, preferably laser-marked animal ear marks containing the thermoplastic polyurethane according to the invention. The invention also relates to methods for the laser inscription of thermoplastic polyurethane, the thermoplastic polyurethane according to the invention being inscribed by means of a laser.
Abstract:
The invention relates to flat film conductors comprising thermoplastic polyurethane and stabilised thermoplastic polyurethane comprising antioxidants and metal deactivators, preferably for use in flat film conductors.
Abstract:
Stabilizer mixture contains an antioxidant, a HALS (hindered amine light stabilizer) compound, a UV absorber and a phosphorus compound. Independent claims are also included for the following: (1) Polyurethanes containing the stabilizer mixture. (2) Production of stabilized polyurethanes by reacting polyisocyanates with compounds containing at least 2 isocyanate-reactive hydrogen atoms and optionally chain extenders, catalysts and/or additives, in which a phenolic antioxidant, HALS compound, UV absorber and phosphorus compound are added, separately or as a mixture, to at least one of these components or the resultant polyurethane.
Abstract:
The invention relates to a mixture of substances with a number average molecular weight of between 500 and 15000 g/mol, whereby the number average molecular weight is different from the weight average molecular weight which is obtainable by A) reacting UV-absorbers, or a mixture of UV-absorbers and stabilisers for synthetic materials with dioles, whereby at least one section of the UV-absorbers or the stabilisers comprise at least two groups which react against dioles, and/or B) reacting UV-absorbers, or a mixture of UV-absorbers and stabilisers for thermoplastic synthetic materials with a polyol.
Abstract:
Poliuretano termoplástico, estabilizado, que contiene (i) antioxidantes fenólicos y (ii)desactivadores de los metales, elegidos entre 2-(2- bencimidazolil)-fenol, 3-(2-imidazolin-2-il)-2- naftol, 2-(2-benzooxazolil)-fenol, 4-dietilamino-