Patent ID: 7244510

Claim:
A composition comprising components (A) to (C) (A) 5 to 89 wt % of polyvinyl butyral (PVB), (B) 1 to 20 wt % of styrene maleic imide (SMI) and (C) 5 to 50 wt % of ethylene acrylate, and optionally one or several of components selected from the group consisting of (D) to (H), in the following amounts by dry weight (wt) (D) 0 to 20 wt % of water-soluble component, preferably polyvinyl alcohol or starch, (E) 0 to 7 wt % of wax, (F) 0 to 6 wt % of styrene maleic anhydride copolymer (SMA) or salt thereof, (G) 0 to 70 wt % of synthetic binder, preferably styrene butadiene (SB) latex and (H) 0 to 70 wt % of mineral, preferably kaolin or talc.