Basf Aktiengesellschaft

Hans G Matthies

Rainer Neuberg

Horst Reimann

Hans-Josef Sterzel

Klaus Penzien

Peter Ittemann

Rolf Wurmb

Klaus Boehlke

Wolfgang Druschke

Martin Welz

Hermann Buchert

Matthias Winkler

Peter Foerster

Karl-Heinz Butzheinen

Rainer Eichler

Andrea Franz

Joerg Rebhan

UV-stabilized formed structures from aromatic polyether ketones are coated with at least one film-forming polymer containing at least one UV absorber dissolved or dispersed in said film-forming polymer.

UV-stabilized formed structures from aromatic polyether ketones

A polyether ketone sewing yarn comprises a multifilament yarn having an individual filament linear density of from 1.0 to 10 dtex, an elongation at break of from 3 to 30% and a boil shrinkage of less than 10%.

Polyether ketone sewing yarn

Impact-resistant nylon molding materials contain

Impact-resistant nylon molding materials which are less susceptible to

Fiber composites produced by impregnating a woven fabric in which parallel reinforcing fibers are held together by thermoplastic filament yarns in an impregnating bath containing from 0 to 50% by weight of a thermoplastic and from 100 to 0% by weight of a solvent for the thermoplastic, evaporating the solvent, and making up are useful for producing finished parts for the automatic sector and for the aerospace industy.

Production of fiber composites

Thermoplastic segmented elastomeric copolyether-esters which substantially consist of a plurality of recurring short-chain and long-chain ester units linked to one another by ester bonds, the proportion of the short-chain ester units of the formula ##STR1## where R is the divalent radical remaining after removal of the carboxyl groups of aromatic dicarboxylic acids having a molecular weight of &lt;350 and A is the divalent radical remaining after removal of the hydroxyl groups of a diol having a molecular weight of &lt;250, being from 15 to 75% by weight, and the proportion of the long-chain ester units of the formula ##STR2## where R is defined as above and B is the divalent radical remaining after removal of the terminal hydroxyl groups from a long-chain glycol, being from 25 to 85% by weight of the copolyester, and which contain from 0.01 to 5 mole %, based on copolyester, of trifunctional or more highly functional compounds, serving as branching agents, chemically incorporated into the polymer molecule. The copolyesters are particularly suitable for use in pressure-sensitive adhesives.

Thermoplastic segmented elastomeric copolyether-esters and their use as

Fibers and filaments of linear thermoplastic polyesters, containing halogen-containing flameproofing agents and synergistic agents therefor, in which the flameproofing agents are chlorinated and/or brominated oligomeric styrenes. The fibers and filaments of the invention are used for the manufacture of textiles of low flammability.

Flame-retardant fibers and filaments of linear thermoplastic polyesters

Thermoplastic compositions based on mixtures of a vinyl chloride polymer and conventional reinforcing agents. The compositions contain a linear polyester, which is solid at room temperature and is compatible with the vinyl chloride polymer, as a processing assistant. The thermoplastic compositions may in particular be used for the manufacture of injection moldings.

Reinforced vinyl chloride polymer compositions containing

An improved process for the continuous manufacture of linear high molecular weight polyesters by direct esterification of terephthalic acid with excess glycols in a medium comprising terephthalic acid glycol esters or their oligomers, under superatmospheric pressure at temperatures above 200.degree. C, followed by polycondensation in the presence of catalysts at from 260.degree. to 290.degree. C. The improvement is that the mixture fed to the esterification contains terephthalic acid and glycols in the molar ratio of 1:1.15 to 1:1.5 and that during the esterification from 20 to 30% by weight of the excess of glycols over the molar ratio terephthalic acid: glycols = 1:1 are continuously distilled from the reaction mixture.

Growing community of inventors

Ludwigshafen, Germany

Hans G Matthies