Dow Global Technolgoies LLC

Jean-Francois Koenig

Chung Poo Park

Lars Massueger

Georges Eschenlauer

Alain Sagnard

Michael E Schaller

Ralph Schmidt

Fernand Wilhelm

Michel Brucker

An article with at least two extruded thermoplastic polymer foam pieces that fit together to form a length of foam having a generally annular cross section, each piece having a concave surface such that the concave surfaces adjoin to form an internal edge defining a hole within the generally annular cross section; wherein each piece has a density less than 36 kilograms per cubic meter, a product of density times average cell size that is less than 17 millimeters*kilogram per cubic meter, and a thermal conductivity of 35 milliwatts per meter*Kelvin or less.

Thermoplastic polymeric foam pipe insulation

Prepare an acoustical polymeric foam by providing at least two initial polymeric foams, perforating all the way through the initial polymeric foams and then laminating the perforated initial foams together such that a perforated surface of one foam adheres to a perforated surface of an adjoining perforated initial foam.

Laminated perforated acoustical foam

Polyolefin foam useful for sound and thermal insulation

Growing community of inventors

Horgen, Switzerland

Jean-Francois Koenig