G+H Isolierung GmbH

September 1, 1878 start of the chemist Dr. Carl Grünzweig and businessman Paul Hartmann at today Frankenthaler street in Ludwigshafen their "factory of chemical engineering productions of Grünzweig & Hartmann oHG". Its main purpose is to develop new insulation materials for modern plants and machines that replace traditional insulation materials such as straw, chaff and animal fur.