Other

Polyurethane-91

INCI: POLYURETHANE-91
CAS Not uniquely established in public databases.
Polyurethane-91 is a urethane polymer formed by a multi-step process. First, a polyester is made by reacting Hexanediol with Dimethyl Carbonate. A mixture of this polyester, 3-dimethylamino-1,2-propanediol and 1,4-Butanediol is reacted with Isophorone Diisocyanate. The polymer is neutralized with Lactic Acid.
Generally Safe
This ingredient has a good safety profile based on available data.
Purpose

Function

Film Forming
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

Polyurethane-91 is a urethane polymer formed by a multi-step process. First, a polyester is made by reacting Hexanediol with Dimethyl Carbonate. A mixture of this polyester, 3-dimethylamino-1,2-propanediol and 1,4-Butanediol is reacted with Isophorone Diisocyanate. The polymer is neutralized with Lactic Acid.

Reference

Identifiers

CAS Number
Not uniquely established in public databases.
INCI
POLYURETHANE-91
Category
Other
Updated
Apr 2, 2026