Polyurethane-84
Used in cosmetic products as nail conditioning. Polyurethane-84 is a urethane polymer prepared by a multi-step process. First, a polyester is made by condensing Hexanediol with Dimethyl Carbonate. The polyester is then reacted with Dimethylolpropionic Acid, Cyclohexane Dimethanol, and Saturated Methylene Diphenyl Diisocyanate to form a polyurethane. The polyurethane is neutralized with Triethylamine to make it water-dispersible, then chain extended with hydrazine and Diethylenetriamine.
EU Cosmetics Regulation (EC) No 1223/2009, Annex II/201.
The chemical behind this ingredient
Structure, properties, safety data and price information live on the chemical page.
Frequently asked questions
What is Polyurethane-84 used for in cosmetics?
Polyurethane-84 is used in cosmetic products as nail conditioning. Polyurethane-84 is a urethane polymer prepared by a multi-step process. First, a polyester is made by condensing Hexanediol with Dimethyl Carbonate. The polyester is then reacted with Dimethylolpropionic Acid, Cyclohexane Dimethanol, and Saturated Methylene Diphenyl Diisocyanate to form a polyurethane. The polyurethane is neutralized with Triethylamine to make it water-dispersible, then chain extended with hydrazine and Diethylenetriamine.
Is Polyurethane-84 restricted in cosmetics in the EU?
Polyurethane-84 is listed in the annexes of EU Cosmetics Regulation (EC) No 1223/2009: Annex II/201 (prohibited in eu cosmetics). Always check the full annex entry for the conditions of use.
What is the CAS number of Polyurethane-84?
Polyurethane-84 is listed with CAS number 1436463-63-6.