| 发明名称 | Process and apparatus for producing crystalline resin film or sheet | ||
| 摘要 | A process and apparatus for manufacturing a crystalline resin film or sheet. This manufacturing apparatus includes: an extruder that melts crystalline resin while supplying it; a gear pump that is provided on the downstream side of the extruder; a die which is provided on the downstream side of the gear pump, and which has a slit-shaped aperture; a cooling apparatus which cools film-shaped or sheet-shaped crystalline resin (A) discharged in a melted state from the die to a temperature which is not less than the crystallization temperature but not more than the melting point; and a pair of pinch rolls that press-roll between them the film-shaped or sheet-shaped crystalline resin (B) which has passed through the cooling apparatus (40), wherein the pair of guide rolls are positioned such that the thickness of the film-shaped or sheet-shaped crystalline resin (B) which has passed through the cooling apparatus is between 1.3 and 8.0 times the thickness of the film or sheet (C, D) after it has been press-rolled. | ||
| 申请公布号 | US9138933(B2) | 申请公布日期 | 2015.09.22 |
| 申请号 | US201013146009 | 申请日期 | 2010.01.22 |
| 申请人 | SunAllomer Ltd. | 发明人 | Washiyama Junichiro;Kimura Hideharu;Yamada Koji;Nakajima Takeshi;Otsubo Akihiro;Hikosaka Masamichi;Okada Kiyoka;Watanabe Kaori |
| 分类号 | B29C47/00;B29C47/36;B29C33/58;B29C43/22;B29C47/32;B29C47/92;C08J5/18;B29C47/38;B29C47/34;B29C47/88;B29K23/00;B29K25/00;B29K27/06;B29L7/00 | 主分类号 | B29C47/00 |
| 代理机构 | Nixon Peabody LLP | 代理人 | Krebs Robert E.;Nixon Peabody LLP |
| 主权项 | 1. A process for manufacturing a crystalline resin film or sheet in which film-shaped or sheet-shaped crystalline resin which is in a melted state is cooled and press-rolled between a pair of pinch rolls, the process comprising: a first step of cooling the film shaped or the sheet-shaped crystalline resin which is in the melted state to a temperature of not less than the crystallization temperature and not more than the melting point to make the film shaped or the sheet-shaped crystalline resin in a super-cooled state, and a second step of press-rolling the film shaped or the sheet-shaped crystalline resin which is in the super-cooled state between the pair of pinch rolls to form the crystalline resin film or sheet, wherein in the second step, the thickness of the film-shaped or sheet-shaped crystalline resin, which is in the super-cooled state before it is press-rolled, is adjusted to between 1.3 and 8.0 times the thickness of the crystalline resin film or sheet after it has been press-rolled, and the roll speed of the pair of pinch rolls is adjusted such that Z which is expressed by the following Formula (1) is 0.09 or less, Z=[(radius [mm] of pinch rolls×thickness [mm] of film or sheet after press-rolling)1/2]/roll speed [m/min]. Formula (1) | ||
| 地址 | Tokyo JP | ||