Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Aromatic diamines containing sulfonic acid aryl esters, a process for their production and their use in the production of polyurethane plastics

Aromatic diamines containing sulfonic acid aryl esters, a process for their production and their use in the production of polyurethane plastics

US Patent 4797427 · Granted Jan 10, 1989

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method for producing TDI-trimerisates with high purity2020
Method for producing 1,5-pentanediisocyanate in the gas phase2019
Method for producing xylylene diisocyanates in the gaseous phase2019
Composition for producing transparent polythiourethane bodies2019
Method for producing light-coloured TDI-polyisocyanates2019
Method for producing 1,5-pentanediisocyanate in the gas phase2019
Method for producing TDI-trimerisates with high purity2018
Phthalate-free isocyanurate formulations2015
Phthalate-free isocyanurate formulations2014
Gas-phase phosgenation process2014
Biologically degradable leather2001
Process for imparting wet strength to paper2000