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US 2012/0067813 A1Published application
Composite hollow fiber membrane and method for manufacturing the same
AssigneeKolon Industries, Inc.
InventorsMoo-Seok Lee, JaeHee Ryu
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Abstract
A composite hollow fiber membrane and a method for manufacturing the same is disclosed, which is capable of maintaining a peeling strength owing to a low shrinkage rate in hot water, even though a filtering system is used for a long time, whereby the composite hollow fiber membrane can be widely used in a micro-filtration field for producing axenic water, drinking water, super pure water, and so on.
Claims13
A composite hollow fiber membrane comprising:
- a tubular reinforcement, and a polymer resin film coated on a surface of the tubular reinforcement,
- wherein a shrinkage rate in water of 80° C. is not more than 3%.
A method for manufacturing a composite hollow fiber membrane comprising:
- applying a heat treatment for a tubular reinforcement;
- coating a polymer resin solution on a surface of a heat-treated tubular reinforcement;
- and
- coagulating the polymer resin solution coated on the surface of the tubular reinforcement.
1 more element
Dependencies are inferred from the claim text.