Polyester-polyolefin blend film or coating composition
AssigneeEastman Kodak Company
InventorMax L. Carroll, Jr.
Life of this patent
Estimating the term…
Abstract
Poly(tetramethylene terephthalate) having an inherent viscosity of from about 0.6 to about 1.4 is modified by the addition of from about 5 to about 35 percent by weight of polyethylene having a density of about 0.918 gm./cc. and a melt index from about 0.1 to about 10.0 to provide an extrusion film or coating composition especially for the coating of substrates at very high line speeds, while resulting in consistent coating characteristics.
Claims3
The composition comprising a blend of poly(tetramethylene terephthalate) having an inherent viscosity in ml./g. of from about 0.6 to about 1.4, with from about 5 to about 35 percent by weight of polyethylene having a density of about 0.918 gm./cc. and a melt index of from about 0.1 to about 10.0, said blend having a flow rate of from about 10 to about 30 gm./10 min. as determined as ASTM D1238 at 250.degree. C. and 2.16 kg.
Dependencies are inferred from the claim text.