Manufacturing method of film-like materials of resin and film-like materials of resin
US7223806B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2002 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Sep 6, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C55/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A film-like materials of resin manufacturing method for producing a film-like material made of a resin by rolling a thermoplastic resin material containing a thermoplastic resin using a molding apparatus comprising first rotation molding members composed of a pair of rollers, wherein the method is characterized in that the rotation molding is carried out under the conditions satisfying the following inequalities of the line contact pressure P (kN/m) applied to the thermoplastic resin, the peripheral velocity R (m/sec) of the rollers of the first rotation molding members, and the thickness H (m) of the film-like material made of the resin after rolling. (formula 1) 3×9.8≦P (formula 2) 3×9.8×10−6≦P/(R/H2)≦2×9.8×10−5, wherein the reference character P denotes the line contact pressure P (kN/m), the reference character R denotes the peripheral velocity (m/sec) of the rotation molding members, and the reference character H denotes the thickness (m) of the film-like material made of the resin after rolling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.