POLYURETHANE-18

Polyurethane-18 is a complex polymer formed by the reaction of m-tetramethylene diisocyanate, polybutylene glycol and Dimethylolpropionic Acid (q.v.) The pre-polymer is neutralized with Triethylamine and condensed with a combination of hydrazine and C1-8 diamines to achieve chain extension.

Restricted or banned

China · South Korea · Taiwan

Source: MFDS (Korea) cosmetic regulatory information

Argentina · Brazil

• Field of application and/or use : (a) Products without rinse. (b) Other products.
• Maximum concentration permitted at final product : (a) 2.5%
• Other limitations and requirements : a.- b.- . No use with nitrosating systems . -Pureza minimum 99% maximum -Tenor of secondary amines in raw materials 0.5%. Maximum nitrosamine -Tenor. 50 ug / kg -Envasar / keep in containers free of nitrites

ASEAN

• Field of application and/or use : (a) non-rinse-off products (b) other products
• Maximum authorised concentration in the finished cosmetic product : (a) 2.5%
• Other limitations and requirements : (a) (b): • Do not use with nitrosating systems • Minimum purity: 99% • Maximum secondary amine content: 0.5% (applies to raw materials) • Maximum nitrosamine content: 50 μg/kg • Keep in nitrite-free containers

European Union

• Product Type, body parts : (a) Leave-on products (b) Rinse-off products
• Maximum concentration in ready for use preparation : (a) 2.5%
• Other : (a) (b) - Do not use with nitrosating systems - Minimum purity: 99% - Maximum secondary amine content: 0.5% (applies to raw materials) - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers

Restriction II/201 III/62

Source: EU CosIng ingredient list

Reviewed by CIR: Final Report: Safety Assessment of Polyurethanes as Used as Cosmetics

Source: US Cosmetic Ingredient Review (CIR)