|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||427/407.1; 264/171.13; 264/171.14; 264/173.12|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 15 인용 특허 : 28|
The specification discloses a method for extrusion coating a lightweight web. According to the method, a length of a lightweight web along with a length of a carrier web is fed to an extruder with the lightweight web positioned atop the carrier web. A polymer film is then extruded onto the combined lightweight web and carrier web to provide an extrusion-coated lightweight web. Thereafter, the extrusion-coated lightweight is separated from the carrier web. Also disclosed are extrusion-coated lightweight webs formed according to the method.
What is claimed is: 1. A method for extrusion coating a lightweight web comprising: feeding a length of a nonwoven fabric, lightweight web along with a length of carrier web to an extruder with the lightweight web atop the carrier web; extruding a polymer film coating onto the lightweight web and carrier web in the extruder so that a surface of the lightweight web is coated by the extruded coating to provide an extrusion-coated lightweight web; and separating the extrusion-coated lightweight web from the carrier web. 2. The method of claim 1 wherein ...