Description

Styrene/methacrylamide/acrylates copolymer is a chemical compound, a styrene by-product.

Significant substances used in the production method:
Styrene, methacrylamide, (2-propenoic acid, 2-methyl-, polymer with ethyl 2-propenoate, methyl 2-methyl-2-propenoate).

Safety
Styrene is a fat-soluble organic molecule obtained from the Friedel-Crafts reaction between benzene and ethylene. It is a residual monomer that can be absorbed through the skin. It can cause neurotoxic effects.
Kraeling, M. E., & Bronaugh, R. L. (2005). In vitro percutaneous absorption of acrylamide and styrene from cosmetic vehicles through fuzzy rat and human skin. Cutaneous and Ocular Toxicology, 24(1), 65-79.

What it is used for and where
Cosmetics

Film-forming agent. It produces a continuous ultra-thin film with an optimal balance of cohesion, adhesion and stickiness on the skin or hair to counteract or limit damage from external phenomena such as chemicals, UV rays and pollution.

Surfactant - Suspending agent. Cosmetic or pharmaceutical suspensions are known to be thermodynamically unstable and it is therefore essential to include in the formulation a suspending agent capable of dispersing any sedimented particulates and reducing the rate of sedimentation. The presence of this agent increases the consistency of the suspension medium and exerts a protective colloidal action with a surfactant action.
Synonyms:

CAS: 28632-83-9