Weather-resistant, high-impact strength acrylic compositions
- 申请公布号：
- US2003216510(A1)
- 申请号：
- US20030395643
- 申请日期：
- 2003.03.24
- 申请公布日期：
- 2003.11.20
- 申请人：
- WANAT ROBERT A.;CRABB CHARLES C.;LABANOSKI DENNIS J.
- 发明人：
- WANAT ROBERT A.;CRABB CHARLES C.;LABANOSKI DENNIS J.
- 分类号：
- B32B27/30;C08L33/06;C08L33/12;C08L51/00;(IPC1-7):C08L51/00
- 主分类号：
- B32B27/30
- 摘要：
- Disclosed is an improved weatherable thermoplastic composition. The composition is comprised of a copolymer of an alkyl acrylate or alkyl methacrylate and poly(methyl)methacrylate and a multi-stage, sequentially-polymerized impact modifier polymer. The copolymer is characterized by greater than 15 weight percent alkyl acrylate content. The multi-stage, sequentially-polymerized impact modifier is characterized by an elastomer stage, which is 55 percent by weight or greater of the impact modifier composition and is minimally crosslinked. The thermoplastic composition can be used in a wide range of film, sheet, or molded applications.
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