Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Aromatic polyols made from polyethylene terephthalate scrap, glycols and aromatic carbonyl-containing compounds

Aromatic polyols made from polyethylene terephthalate scrap, glycols and aromatic carbonyl-containing compounds

US Patent 4506090 · Granted Mar 19, 1985

Estimated economic value: $7,784,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Water emulsifiable formulations2003
Preparation of N-alkylpiperazines1995
Amidopolyamines derived from amino-carboxylic acid1995
Carboxyl-terminated polyetheramines1994
Water soluble polyamide from polyalkylene glycol diamines and polycarboxylic aci1994
Bicyclo[4.3.0]1,4,7-triazanon-4-ene-one useful in the extraction of precious met1994
Macrocyclic oxamides1994
Preparation of phenoxyethanamines1994
Method of removing alkaline materials from waste water1993
Polyamidopolyfunctional amine from lactam and ether amine1993
Process for preparing polyoxyethylene amines with urea linkages1993
Synthesis of diaza crown ethers1993