申请人:EASTMAN KODAK COMPANY
公开号:EP1452329A1
公开(公告)日:2004-09-01
The invention relates to a composition comprising a polyester copolymer that comprises (a) recurring dibasic acid derived units and polyol derived units, at least 50 mole% of the dibasic acid derived units comprising dicarboxylic acid derived units each containing an alicyclic ring, (b) 25 to 75 mole% of the polyol derived units containing an aromatic ring not immediately adjacent to each hydroxyl group of the corresponding polyol, (c) 25 to 75 mole% of the polyol derived units of the polyester are non-aromatic, and (d) at least 0.1 mole%, in sum total, of units derived from a multifunctional polyol having more than two hydroxy groups and/or units derived from a polyacid having more than two carboxylic acid groups and derivatives thereof. The invention is also directed to shaped articles, especially extruded films, made from such compositions. Examples of such extruded films are image-receiving layers for use in an image-recording element.
本发明涉及一种由聚酯共聚物组成的组合物,该聚酯共聚物包括:(a) 重复出现的二元酸衍生单元和多元醇衍生单元,至少 50 摩尔%的二元酸衍生单元包括各自含有脂环的二羧酸衍生单元;(b) 25 至 75 摩尔%的多元醇衍生单元含有与相应多元醇的每个羟基不紧邻的芳香环;(c) 25 至 75 摩尔%的聚酯多元醇衍生单元为非芳香族;(d) 至少 0.1摩尔%,衍生自具有两个以上羟基的多功能多元醇的单元和/或衍生自具有两个以上羧基的多元酸及其衍生物的单元。本发明还涉及由此类组合物制成的成型物品,特别是挤压薄膜。这种挤压薄膜的例子是用于图像记录元件的图像接收层。