cellulose butyrate

polymer

Cellulose butyrate is a semi-synthetic polymer derived from cellulose that has been chemically modified through esterification with butyric acid, creating a thermoplastic material with improved processability compared to unmodified cellulose. It is used in applications requiring transparency, moderate rigidity, and good dimensional stability, particularly in optical components, safety glazing, and specialty films where its balance of clarity and toughness provides advantages over both rigid thermoplastics and more flexible alternatives. The material is valued in niche applications where the inherent biodegradability of its cellulose backbone and its ability to be molded at moderate temperatures offer cost or sustainability benefits over fully synthetic polymers.

optical lenses and glazingsafety windows and protective shieldsfilm and sheet applicationsmolded consumer productsspecialty packagingbiodegradable polymer alternatives

Compliance & Regulations

?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Glass Transition Temperature(Tg)
—
K——
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.