Method for producing porous thermosetting resin sheet, porous thermosetting resin sheet and composite semipermeable membrane using same
US9186633B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2009 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Jan 14, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/269
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a method for easily producing a long porous thermosetting resin sheet which has no resin coating film on the surface. Also disclosed are a porous thermosetting resin sheet produced by the method, and a composite semipermeable membrane having excellent chemical resistance and practical water permeability and salt-blocking property. The porous thermosetting resin sheet can be produced by forming a cylindrical or columnar resin block which is composed of a cured product of a thermosetting resin composition containing a thermosetting resin, a curing agent and a porogen; then forming a long thermosetting resin sheet by cutting the surface of the resin block at a certain thickness; and then removing the porogen from the thermosetting resin sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.