Abstract:
There is provided a process for the preparation of a compound of formula (I) via the acylation of the appropriate substituted benzene substrate in the presence of graphite and FeC13. Compounds of formula (I) are useful as intermediates in the manufacture of agrichemical agents.
Abstract:
The invention relates to thermoplastic molding materials containing the following: A) 10 to 98 wt. % of at least one polyester a¿1) which is different from polyethylene terephthalate (PET), containing 1 to 50 wt. % PET a¿2) in relation to 100 wt. % A); B) 1 to 30 wt. % of a flameproofing combination consisting of b¿2) 20 to 99 wt. % of a flameproofing agent containing halogen and b¿2 1 to 80 wt. % of an antimonoxyde, in relation to 100 wt. % B); C) 0.1 to 5 wt. % of a stabilizer, which is different from component b¿2) or component E); D) 0.01 to 10 wt. % of an epoxyde resin; E) 0 to 70 % other additives, the sum of the weight percentages of components A) to E) being 100 % equal.
Abstract:
The invention relates to a method for producing, in the presence of a polymerization catalyst, copolymers comprised of carbon monoxide and of at least one olefinically unsaturated compound having 2 to 20 carbon atoms. The inventive method is characterized in that the polymerization is carried out in a supercritical solvent or suspending agent.
Abstract:
The invention relates to polyurethane flexible foams which have a density ranging from 15 to 300 kg/m3¿ and which contain lactones, lactams and/or cyclic esters.
Abstract:
The invention relates to thermoplastic moulding materials containing (A) from 5 to 96 % by weight of a polyester, (B) from 1 to 30 % by weight of a nitrogen compound, (C) from 1 to 30 % by weight of an inorganic phosphorus compound, (D) from 1 to 30 % by weight of an organic phosphorus compound, (E) from 0 to 5 % by weight of at least one ester or amide of saturated or unsaturated aliphatic carboxylic acids having 10 to 40 carbon atoms with aliphatic saturated alcohols or amines having 2 to 40 carbon atoms and (F) from 0 to 60 % by weight of other additives, wherein the sum of weight percentages of components (A) to (F) is equal to 100 %.
Abstract:
The invention relates to thermoplastic polyester molding materials, containing: A) 30 to 100 % by weight polyesters consisting of a1) 50 to 100 % by weight of polybutylene terephthalate with a Lewis acid inorganic or organic metal compound content in the range of from 65 to 100 ppm (in relation to the metal) and a2) 0 to 50 % by weight of polyesters different from polybutylene terephthalate; B) 0 to 40 % by weight of impact resistance modifiers; C) 0 to 30 % by weight of flameproofing agents; D) 0 to 50 % by weight of filling materials and E) 0 to 20 % by weight of further additives, whereby the sum of the weight percentages of constituents A) to E) always equals 100.
Abstract:
Polymer mixtures, containing the following essential ingredients: A) 1-99 wt.% polycarbonates or polyester; B) 1-99 wt.% acrylate rubber modified moulding material, produced by b1) anionic polymerisation of monomers selected from the group consisting of i) (meth)acrylic acid esters of general formula (I) CH2=C(R )-CO2R , and ii) (meth)acrylic acid esters of general formula (II) CH2=C(R )-C(O)O-CR R R in a solvent containing vinyl aromatic compounds of general formula (III) and b2) by adding to the reaction mixture obtained according to b1) b21) acrylonitrile, methacrylonitrile, C1-C8 methacrylates or mixtures thereof and optionally, other radically polymerisable monomers selected from the group consisting of b22) vinyl aromatic compounds according to general formula (III), (C1-C8 alkyl) (meth)acrylic acid esters or the mixtures thereof, b23) other olefinically unsaturated compounds that are different from acrylonitrile or methacrylonitrile or vinyl aromatic compound (III), b3) radical polymerisation of the mixture obtained according to b2), in addition b4 to isolating the rubber modified moulding material obtained according to b3); C) 0-50 wt.% acrylate rubber modified moulding material, whereby at least the rubber phase is produced by means of emulsion polymerisation; D) 0-50 wt.% inorganic filler and E) 0-50 wt.% additives and auxiliary agents.
Abstract:
The invention relates to a method for producing alkylene glycol, according to which a reaction mixture containing an alkylene oxide or a mixture of two or more alkylene oxides as well as water and a catalyst triggering dissociation in water is reacted. In this way a product mixture containing alkylene glycol is obtained which is then purified by means of electrodialysis.
Abstract:
The invention relates to a method for producing expandable styrene polymers containing graphite particles by polymerising styrene in an aqueous suspension in the presence of graphite particles.
Abstract:
The invention relates to a method for producing shaped bodies, preferably for a film-like shaped body, comprising the following steps: I) compounding and melt extrusion of a mixture (I) comprising a mixture (II) containing a) 1 to 95 wt. % of at least a pigment (III) with a primary particle size ranging from 5 nm to 20mm, selected from the group consisting of one electrochemically inert solid (IIIa), of a compound (IIIb) capable of giving off lithium ions when charged, and a compound (IIIc), capable of receiving lithium ions when charged, and a mixture of solid (IIIa) with compounds (IIIb) or compound (IIIc), b) 5 to 99 wt. % of at least one polymer binding agent (IV), and c) 0 to 200 wt. % of at least one softening agent (V) in relation to the overall amount of constituents a) and b), wherein the weight percentage of mixture (II) in mixture (I) ranges from 1 to 100 wt. %, and excluding mixtures (I) comprising mixtures (II) containing a copolymer consisting of vinylidene fluoride (Vdf) and hexafluoropropylene (HFP) with a HFP content ranging from 8 to 25 wt. % as a polymer binding agent (IV) and a compound as a softening agent (V) which is selected from the group consisting of dibutyl phthalate, dimethyl phthalate, diethyl phthalate, tris(butoxy)ethyl phosphate, propylene carbonate, ethylene carbonate, trimethyl trimellitate and mixtures thereof.