摘要:
The invention relates to a foamable bead polymer consisting of (meth)acrylonitrile, (meth)acrylic acid, copolymerizable latent blowing agents and optionally (meth)acrylic esters, the preparation thereof by suspension polymerization and the use thereof for producing foams. Such a bead polymer makes it possible, for example, to carry out in-mould foaming in a simple way and thus produce products having the shape of the desired workpiece directly. These workpieces are highly suitable as components in space, air, water and land vehicles and for other construction elements.
摘要:
Composition for the production of mouldings having a matt and structured surface character, comprising a polymer matrix and crosslinked polymer particles, the polymer matrix comprising at least one acrylic polymer and the composition containing (i) first crosslinked polymer particles having a volume average of the particle size in the range from 30 μm to 1500 μm and (ii) second crosslinked polymer particles having a volume average of the particle size of less than 30 μm, the difference between the refractive index of the first polymer particles and the refractive index of the polymer matrix, measured in each case at 25° C., being less than 0.015 as an absolute value and the difference between the refractive index of the second polymer particles and the refractive index of the polymer matrix, measured at 25° C., being greater than or equal to 0.015 as an absolute value. The mouldings of the invention are suitable in particular for use as components for lighting, signs and symbols, points-of-sale, cosmetics display stands, containers, home and office decoration, furniture applications, shower cabinet doors and office doors.
摘要:
The present invention relates to light guide bodies having improved luminous intensity and transparency, to a method for their production and to their use.
摘要:
The invention relates to a method for coloring thermoplastic molding compounds, preferably a polymethyl(meth)acrylate molding compound, using novel aqueous colorant preparations. The invention further relates to a novel water-based colorant preparation.
摘要:
Process for preparation of bead polymers whose average particle size is in the range from 1 μm to 40 μm, by dispersing and polymerizing a polymerizable composition in an aqueous phase, where the dispersion stabilized by an aluminium compound is prepared at a shear rate ≧103 s−1. A polymerizable composition is used here which, in each case based on its total weight, comprises a) more than 50.0% by weight of at least one compound of the formula (I), where the radicals 1R to 6R have definitions according to the Description, b) from 0.1% by weight to 10.0% by weight of at least one crosslinking agent and c) less than 49.9% by weight of at least one compound of the formula (II) where the radicals R and 7R to 9R have definitions according to the Description The bead polymers prepared according to the inventive process are particularly suitable for production of mouldings with light-scattering properties.
摘要:
The present invention relates to light guide bodies having improved luminous intensity and transparency, to a method for their production and to their use.
摘要:
The invention relates to a new adhesive composition and to sheets produced from it, for producing laminates, more particularly for bonding plastic with glass components, to a method for producing such laminates, and to the laminates produced accordingly.
摘要:
The present invention relates to light guide bodies having improved luminous intensity and transparency, to a method for their production and to their use.
摘要:
The present invention relates to light guide bodies having improved luminous intensity and transparency, to a method for their production and to their use.
摘要:
(EN) The invention relates to a macroporous plastic bead material with a mean particle diameter of 10 to 1000 pm, radically polymerised from the following monomer types a) 5-40 wt. % vinylic polymerisable monomers with a water-solubility of at least 1% at 20° C. which are not vinylic polymerisable monomers with a quaternary amino group, b) 5-50 wt. % of vinylic polymerisable monomers with an additional functional group which can for covalent bonds on reaction with nucleophilic groups of ligands, c) 20-60 wt. % hydrophilic, cross-linking radically polymerisable monomers with two or more ethylenically-unsaturated polymerisable groups, characterised in that in addition d) 1 to 20 wt. % of a vinylic polymerisable monomer with a quaternary amino group are used for the polymer. The invention further relates to a method for production of the macroporous plastic bead material by inverse suspension polymerisation of monomer phase and uses thereof.