Huels Aktiengesellschaft

Chemische Werke Huls Aktiengesellschaft

Chemische Werke Huels Aktiengesellschaft

Huls Aktiengesellschaft

Roland Feinauer

Hans Jadamus

Klaus Burzin

Stefan Rober

Rainer Feldmann

Martin Bartmann

Hans Ries

Wilfried Ribbing

Jorn Ruter

Hans-Dieter Herrmann

Karl-Heinz Magosch

Jurgen Finke

Joachim Mugge

Michael Droescher

Michael Boer

Salih Mumcu

Wilfried Bartz

Heinz Scholten

Ralf Schueler

Joachim Muegge

Hans-Joachim Panoch

Joern Rueter

Wolfgang Neugebauer

Gernot Horlbeck

Hanns-Jorg Bax

Christian Gerth

Michael Droscher

Armin Gude

Wolfgang Schafer

Michael Schlobohm

Wolfgang Schaefer

Karl Heinz Magosch

Uwe Hartkopf

A plastic pipe having improved resistance, inter alia, to methanol-containing fuels and improved mechanical properties, comprising at least:

Multilayer plastic pipe

The present invention relates to a plastic pipe having improved resistance, inter alia, to methanol-containing fuels and improved mechanical properties, comprising.

A plastic pipe having improved resistance, inter alia, to methanol-containing fuels and improved mechanical properties comprising:

The present invention relates to a composite material having improved thermal and mechanical properties which comprises at least:

Thermoplastic multilayer composites

Multilayer plastic pipe comprising at least one outer layer based on polyamide and at least one layer of a linear, crystalline polyester modified by means of an isocyanate mixture exhibits improved resistance, inter alia, to methanol-containing fuels and improved mechanical properties.

Laminates having improved resistance to chemicals and improved frictional bonding between the layers are to be provided. This is achieved by

Thermoplastic laminates

A plastic pipe having improved resistance to methanol-containing fuels and improved mechanical properties is provided. This is achieved by a multilayer plastic pipe consisting of at least one outer layer based on polyamide and at least one layer of a linear, crystalline polyester modified with isocyanates. With the aid of the invention it is possible to obtain plastic pipes having improved barrier properties against methanol-containing fuels and dimensional stability and mechanical load-bearing capacity.

Multilayer plastic pipe comprising an outer polyamide layer and a layer

Aromatic polyamides having improved stability with respect to thermal oxidation are produced by adding to the reaction mixture present as a melt, a stabilizing amount, e.g., 0.05-4 mol % based on the sum total of components A and B, of a compound of Formula (I) ##STR1## wherein Q is --O--; --S--; or N--R'';

Production of aromatic polyamide using a fused ring stabilizer

An aromatic polyamide, e.g., from isophthalic acid and 4,4'-bis(4-aminophenoxy)diphenylsulfone, is produced with a sufficient amount, e.g., 0.05-4 mol%, of 4-phenoxypyridine to improve resistance to thermal oxidation.

Production of a thermoplastically processable, aromatic polyamide using

A thermoplastic molding composition comprising 70 to 98 parts of an aromatic polycarbonate having a viscosity number of from 40 to 100 cm.sup.3 /g and 2 to 30 parts of a polyoctenylene or a modified polyoctenylene.

Thermoplastic molding compositions, and a process for the production

Aromatic polyamides having an improved resistance against thermal oxidation, are produced by utilizing monomers having a very high degree of purity, at least 99.90% by weight, preferably, at least 99.94%.

Catalytic production of aromatic polyamides from high purity monomers

A thermoplastic molding composition having good cold impact strength properties, consisting essentially of (I) a polyamide 1212 having a relative viscosity in the range of from 1.5 to 3.0, and (II) 2 to 25% by weight, based on the polyamide, of a plasticizer.

Thermoplastic molding compositions with cold impact strength

The invention relates to thermoplastic compositions made up of:

Thermoplastic compositions based on polyphenylene ethers and

Thermoplastic molding compounds which have high cold impact strength. The molding compounds are comprised of (i) a polyamide 1012 with a relative viscosity in the range of 1.5-3.0; and (ii) a plasticizer in the amount 2-25 wt. % based on the weight of the polyamide. The inventive molding compounds enable manufacture of molded pieces.

Growing community of inventors

Marl, Germany

Roland Feinauer