56 results about "Polyvinyl acetate" patented technology

Poly(vinyl acetate) (PVA, PVAc, poly(ethenyl ethanoate): best known as wood glue, white glue, carpenter's glue, school glue, Elmer's glue in the US, or PVA glue) is an aliphatic rubbery synthetic polymer with the formula (C₄H₆O₂)ₙ. It belongs to the polyvinyl ester family, with the general formula -[RCOOCHCH₂]-. It is a type of thermoplastic. There is considerable confusion between the adhesive as purchased, an aqueous emulsion of mostly polyvinyl acetate, and the subsequently dried material, which is still polyvinyl acetate and chemically unchanged, that is erroneously thought of as the newly polymerized product.