Recycle content poly(vinyl acetal)
AssigneeEastman Chemical Company
InventorsDavid Eugene Slivensky, Daryl Bitting, Kenny Randolph Parker, Michael Gary Polasek, William Lewis Trapp, Xianchun Wu
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Abstract
A poly(vinyl acetal) composition, such as a poly(vinyl butyral) composition or resin, can be made containing recycle content by the use of a recycle content aldehyde composition as a feedstock to make the PVA or by application of a recycle allotment, such as an allocation or credit, applied to either the aldehyde composition or to the PVA composition. The recycle content is obtained by cracking a recycle content pyrolysis oil to make a variety of olefins, such as propylene or ethylene.
Claims4
A method of preparing a recycle content poly(vinyl acetal) composition “(r-PVA)”, said method comprising reacting polyvinyl alcohol “(PVOH)” with an aldehyde composition comprising pyrolysis recycle content aldehyde “(pr-A)”, wherein at least a portion of the pr-A is derived directly or indirectly from pyrolysis of plastic waste, and wherein said plastic waste comprises one or more plastics selected from high density polyethylene, low density polyethylene, polypropylene, other polyolefins, polystyrene, polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polyethylene terephthalate, polyamides, poly(methyl methacrylate), polytetrafluoroethylene, or combinations thereof, and wherein the plastic waste comprises not more than 5 weight percent of polyvinyl chloride and/or polyethylene terephthalate.
Dependencies are inferred from the claim text.