Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Filler-containing polyurethane (urea) compositions prepared from prepolymers reacted with water in the presence of lignite or peat

Filler-containing polyurethane (urea) compositions prepared from prepolymers reacted with water in the presence of lignite or peat

US Patent 4608397 · Granted Aug 26, 1986

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Process for the improved separation of clarified liquid from biomass in the biol1991
Foam-containing polyurethane (urea) compositions and process for the preparation1989
Process for the preparation of filler-containing, antionically modified polyuret1989
Combustion of aqueous sewage sludge by the fluidized bed process1989
Polymer carrier masses as carriers in biochemical conversion processes in the aq1989
Foam-containing polyurethane(urea) compositions and process for the preparation 1989
Process for removing impurities from mixtures of water with water-miscible solve1988
Process for the improved separation of clarified liquid from biomass in the biol1988
Foam-containing polyurethane(urea) compositions and process for the preparation 1988
Adhesive joining of surfaces using thermosetting polyurethane urea reactive adhe1986
Process for the production of isocyanate polyaddition products1986
Use of water-absorbing, highly-filled polyurethane (urea) compositions for biolo1986