Who has information on butyl acetal?

Main properties: 1. Physical properties: A. It appears as a white, flowable granular powder with a density of 0.17–0.4 g/cm3. It can withstand temperatures as low as -60°C; its glass transition temperature is 57°C, while the softening temperature ranges from 60°C to 75°C. B. Solubility: PVB is insoluble in water, but it can dissolve in various organic solvents such as alcohols, esters, and the like, such as ethanol, phenylacetyl, and cyclohexane. It is also miscible with various plasticizers such as phthalates, phospholipids, and fatty acid esters. Upon addition, it forms a film with extremely strong adhesion, excellent transparency, as well as water and light resistance. It is also soluble in various resins, such as phenolic resin, urea resin, melamine resin, epoxy resin, nitrocellulose, natural resin, etc. C. It has good insulation properties, as well as resistance to weathering, water, aging, and the effects of inorganic acids and aliphatic hydrocarbons. Furthermore, polyvinyl butyral is non-toxic, odorless, and non-corrosive

Thank you. Does it have chemical properties or flammability characteristics? If so, please send them again