Patent ID: 7820276
Filing Date: 2010-10-26
Classification: A01G,B32B,C08J,C08K,C08L,D21H,G02B,Y02A,Y10T

Abstract:
1. A single-layer matte film or sheet comprising a biodegradable resin (A), a starch (B), and a plasticizer (D), wherein the single-layer matte film or sheet comprises: 70 to 91.9% by weight of the biodegradable resin (A) based on the total weight of the biodegradable resin (A), starch (B) and plasticizer (D), the resin (A) comprising a blend which comprises 20 to 50% by weight of a biodegradable aliphatic-aromatic polyester (a1) having a glass transition temperature Tg of 10° C. or lower and 50 to 80% by weight of a biodegradable polylactic acid resin (a2) having a glass transition temperature Tg of 30° C. or higher and in which the total of the biodegradable polyesters (a1) and (a2) is 100% by weight; 8 to 25% by weight of the starch (B) as the filler based on the total weight of the biodegradable resin (A), starch (B) and plasticizer (D); and 0.1 to 5% by weight of the plasticizer (D) based on the total weight of the biodegradable resin (A), starch (B) and plasticizer (D); wherein at least one surface of the single-layer matte film or sheet has a surface gloss (Gloss: 45 degree) as measured in accordance with ASTM-D2457-70 of 60% or lower.