Abstract:
The invention relates to a polymer foam having a density in the range between 5 and 120 kg/m3, containing a) a polymer component, containing at least one styrene polymer, b) 0.1 to 5 parts by weight (relative to 100 parts by weight of component a)) of a flame retardant mixture, containing b1) at least one phosphorus compound of formula (I) having a phosphorus content in the range between 5 and 80% by weight, relative to the phosphorus compound, (X1)s =PR1R2R3 (I), where the symbols and indices in formula (I) have the following meanings: R1 is C1-C16-alkyl, C1-C10-hydroxyalkyl, C2-C16-alkenyl, C1-C16-alkoxy, C2-C16-alkenoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, C6-C10-aryl, C6-C10-aryloxy, C6-C10-aryl-C1-C16-alkyl, C6-C10-aryl-C1-C16-alkoxy, SR9, COR10, COOR11, CONR12R13; R2 is C1-C16-alkyl, C1-C10-hydroxyalkyl, C2-C16-alkenyl, C1-C16-alkoxy, C2-C16-alkenoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, C6-C10-aryl, C6-C10-aryl-C1-C16-alkyl,C6-C10-aryl-C1-C16-alkoxy, SR9, COR10, COOR11, CONR12R13;R3 is H, SH, SR4, OH, OR5 or a group 30 -(Y1)n-[P(= X2)uR6 -(Y2)n]m-P(= X3)tR7R8; or two groups R1, R2, R3 together with the phosphorus atom to which they are bound form a ring system; X1, X2 and X3 are independently of each other identically or differently O or S; Y1, Y2 are identically or differently O or S; R4, R5, R9, R10, R11, R12,R13 are identically or differently C1-C12-alkyl, C3-C8-cycloalkyl, which is unsubstituted or substituted by one or more C1-C4-alkyl groups, C2-C12-alkenyl, C2-C12-alkinyl, C6-C10-aryl or C6-C10-aryl C1-C4-alkyl; R6, R7, R8 are independently of each other identically or differently C1-C16-alkyl, C1-C16-alkenyl, C1-C16-alkoxy, C1-C16-alkenoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, C6-C10-aryl, C6-C10-aryloxy, C6-C10-aryl-C1-C16-alkyl, C6-C10-aryl-C1-C16-alkoxy, SR9, COR10, COOR11, CONR12R13; n is 1, if Y1 or Y2 is O, and 1, 2, 3, 4, 5, 6, 7 or 8, if Y1 or Y2 is S; m is a whole number between 0 and 100; s, t and u are independently of each other 0 or 1; and b2) elementary sulphur.
Abstract:
La presente invención está dirigida al uso de poli(poliisobutilenmetacrilato) como componente que mejora el índice de viscosidad en composiciones de aceite lubricante. La invención se relaciona además con composiciones de aceite lubricante que comprenden poli(poliisobutilenmetacrilato) con estabilidad al cizallamiento mejorada. (Traducción automática con Google Translate, sin valor legal)
Abstract:
Procedimiento para la preparación de metacrilato de carbonato de glicerol, en el que el metacrilato de glicidilo se hace reaccionar en presencia de un catalizador y un disolvente con dióxido de carbono, caracterizado porque el catalizador es yoduro de potasio, el disolvente es acetonitrilo, uno o más monoalcoholes, o una mezcla cualquiera de acetonitrilo y uno o más monoalcoholes y la reacción del metacrilato de glicidilo con dióxido de carbono se lleva a cabo a una presión de 0,5 a 5 bares.
Abstract:
A process for preparing isosorbide di(meth)acrylate by transesterifying alkyl (meth)acrylate with isosorbide, comprising the steps of: (i) reacting alkyl (meth)acrylate with isosorbide in the presence of a catalyst comprising titanium(IV) or zirconium(IV) and a stabilizer in the presence of an azeotroping agent which forms an azeotrope with the alcohol bound in the alkyl (meth)acrylate, (ii) continuously distilling off the azeotrope of azeotroping agent and alcohol, wherein steps (i) and (ii) are conducted simultaneously until the isosorbide has been essentially fully converted, (iii) adding water to the product mixture which comprises isosorbide (meth)acrylate and is obtained in steps (i) and (ii) and removing the hydrolyzate of the catalyst comprising titanium(IV) or zirconium(IV), (iv) distilling unconverted alkyl (meth)acrylate and azeotroping agent out of the product mixture, (v) distilling off water from the product mixture, wherein step (iv) can also be conducted before step (iii) and steps (iv) and (v) can also be conducted in one distillation step.
Abstract:
The invention relates to a method for producing norbornyl (meth)acrylate by reacting norbornene with (meth)acrylic acid in the presence of boron trifluoride as a catalyst, characterised in that e) boron trifluoride is added to (meth)acrylic acid, f) the mixture is heated to a temperature of 75 to 110°C, g) norbornene is added, and h) the norbornyl-(meth)acrylate obtained is isolated from the reaction mixture. The invention further relates to a method for producing norbornyl (meth)acrylate by reacting norbornene with (meth)acrylic acid in the presence of boron trifluoride as a catalyst, characterised in that e) boron trifluoride is added to an organic solvent, f) the mixture is heated to a temperature of 75 to 110°C, g) a mixture containing norbornene and (meth)acrylic acid is added, and h) the norbornyl-(meth)acrylate obtained is isolated from the reaction mixture.
Abstract:
Process for producing esters of (meth)acrylic acid or a derivative thereof by reaction of (meth)acrylic acid or a derivative thereof with glycerol carbonate in the presence of at least one enzyme which catalyzes the esterification reaction, in the absence of a solvent and at a reaction temperature of 10°C to 150°C.
Abstract:
The invention relates to compositions, comprising. a)1.00 to 65.00% by weight of at least one compound of formula (I), wherein R1, R2, R3, R4 are each independently H, C1-C6-alkyl, C1-C6-alkoxy, or C1-C6-alkoxy-C1-C6-alkyl; R is H or C1-C6-alkyl; X is CR6R7, O, or NR8; R6R7 are each independently H, C1-C6-alkyl, C1-C6-alkoxy, or C1-C6-alkoxy-C1-C6-alkyl; R8 is H, C1-C6-alkyl, or C1-C6-alkoxy-C1-C6-alkyl; k is 1, 2, 3, 4 or 5, as component A; b) 1.00 to 60.00% by weight of at least one monomer having two (meth)acrylate groups and having a molecular weight of no more than 500 Dalton, as component B; c) 0 to 25% by weight of at least one monomer having at least three (meth)acrylate groups and having a molecular weight of no more than 600 Dalton, as component C; and d) 1.00 to 30.00% by weight of at least one polymer having at least two (meth)acrylate groups and having a molecular weight of at least 700 Dalton, as component D; with the proviso that the amount of components A + B is at least 50% by weight, as well as the use of these compositions as printing inks, in particular inkjet printing inks.