Method for manufacturing elastic cylindrical body and method for manufacturing elastic roll
US6983540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2001 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Mar 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49984
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A liquid mixture containing a liquid polymeric material and a granular filler is injected into a mold (11) for centrifugal molding and subjected to centrifugal molding, thereby preparing a cylindrical body including a homogeneous dispersion layer (2) having the filler homogeneously dispersed in the polymeric material and a high-density packed bed (1), formed on the outer peripheral surface side or on the inner peripheral surface side of the homogeneous dispersion layer (2), containing the aforementioned polymeric material more densely filled with the aforementioned filler. The high-density packed bed (1) is removed for exposing the surface of the homogeneous dispersion layer (2). According to this structure, the yield of the elastic cylindrical body can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.