cellulose acetate propionate

polymer

Cellulose acetate propionate (CAP) is a semi-synthetic thermoplastic polymer derived from cellulose through esterification with acetic and propionic acid groups. It combines the renewable-resource heritage of cellulose with improved processing flexibility and moisture resistance compared to unmodified cellulose acetate, making it particularly valuable where both workability and environmental profile matter. The material is widely used in injection-molded consumer products, optical components, and film applications where clarity, toughness, and moderate temperature performance are required.

eyeglass frames and optical lensestool handles and consumer productsfilm and sheet extrusiontransparent packaging and displaysphotographic applicationslow-temperature structural components

Compliance & Regulations

?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Glass Transition Temperature(Tg)	290.3	°F	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Safety & Biocompatibility

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

cellulose acetate propionate

Thermal Properties

Regulatory Screening

Environmental

Safety & Biocompatibility