Neste Oy

Borealis Technology Oy

Helge Lindstrom

Toivo Karna

Jukka Laakso

Olli Ikkala

Esko Savolainen

Esa Virtanen

Heikki Ruohonen

Timo Niemi

Carl-Gustaf Ek

Alejandro Andreatta

Anders E Nymark

Pekka Heikkila

The invention relates to a multi-layer pressure pipe ( ) of a plastic material. The multi-layer pressure pipe ( ) is formed by using as the extruder an extruder ( ) which cross-orients the reinforcement fibers in the extruded material in the successive layers ( ), and that the material extruded is a polyolefin which contains long-fiber reinforcements.

Multi-layer pressure pipe of a plastic material

Compositions and methods are described that relate to the use of reaction products of metal compounds and protonic acids for plasticizing and neutralizing acidic, protonated compositions comprising substituted and unsubstituted polyanilines and co-polymers and or mixtures thereof; and for reducing the percolation threshold for conductivity in blends with insulating bulk polymers.

Metal compound/protonic acid containing electrically conductive

Electrically conductive compositions and methods for their preparation

Growing community of inventors

Hamari, Finland

Helge Lindstrom