Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hollow fiber membrane

A fiber membrane, hollow technology, applied in the direction of fiber treatment, fiber chemical characteristics, membrane, etc., can solve the problem of efficiency reduction

Pending Publication Date: 2022-03-18
LUBRIZOL ADVANCED MATERIALS INC
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current commercial membranes are made of materials that experience reduced or lost efficiency when exposed to harsh chemicals such as bleach solutions used to clean purification systems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hollow fiber membrane
  • Hollow fiber membrane
  • Hollow fiber membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0095] Hollow fiber membranes were prepared from the coating solutions shown in Table 1 below.

[0096]

[0097] A coating solution was prepared by dissolving chlorinated polyvinyl chloride (CPVC) in N-methyl-2-pyrrolidone (NMP). The CPVC was weighed and added to the NMP at 55°C for 16 hours with continuous stirring. After dissolving the CPVC using this method, additional formulation additives were added at 60° C. for 4 hours using the same continuous stirring conditions.

[0098] In order to manufacture hollow fiber membranes from the above coating solution, typical hollow manufacturing equipment is used for the manufacturing process. The equipment consists of two reservoirs, a spinneret, a water bath and a winding unit. Fully formulated coating solution and drilling fluid are placed in separate reservoirs. The two fluids are pumped through a spinneret die that has channels cut into it for the flow of the coating fluid and the drilling fluid. This spinneret can create ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

The disclosed technology relates to hollow fiber membranes prepared from a coating solution comprising a vinyl chloride polymer (e.g., chlorinated polyvinyl chloride) and a thermoplastic polyurethane.

Description

Background technique [0001] The disclosed technology relates to hollow fiber membranes prepared from a composition comprising a vinyl chloride polymer, such as chlorinated polyvinyl chloride, and thermoplastic polyurethane. [0002] Membrane separation technology is an energy-saving and efficient physical separation technology. Membranes are used in a wide variety of applications, from drinking water purification to industrial wastewater purification. Current commercial membranes are made of materials that reduce or lose efficiency when exposed to harsh chemicals, such as the bleach solutions used to clean purification systems. Therefore, the market demands stable, chemically and temperature resistant membranes. Contents of the invention [0003] Accordingly, the disclosed technology addresses the problem of chemical degradation of hollow fiber membranes by providing hollow fiber membranes comprising a composition comprising polyvinyl chloride polymer and thermoplastic pol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01D71/54B01D71/82C08L39/06C08L75/08B01D69/08B01D67/00C08L27/24B01D69/02B01D71/30C08L71/02C08L75/06
CPCB01D71/54B01D71/82C08L39/06C08L75/08B01D69/08B01D67/0011C08L27/24B01D69/02B01D71/30C08L71/02C08L75/06C08L2205/025C08L2205/03B01D2323/18C08L2205/035D01F1/10D01F6/94D01F6/48B01D2325/30B01D2323/12D01D5/24B01D2325/22D01D5/247B01D67/00111B01D71/301B01D69/087B01D2323/219B01D63/02
Inventor K·罗伊M·D·朱利叶斯D·纳米克C·D·祖克
Owner LUBRIZOL ADVANCED MATERIALS INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com