Maro Publications

Antifriction

From 09/16/2014 through  9/2/2013

Notes

Patent Abstracts

Patent Titles

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Patent Titles

1/21/2014

1. 8,632,706 
Self-adhered single-sided slip-resistant material 

11/19/2013

5. 8,586,513 
Anti-friction coating 

10/8/2013

4. 8,551,576 
Method for controlling a coefficient of friction 

10/1/2013

3. 8,545,930 
Manufacturing of low-friction elements 

9/17/2013

2. 8,535,781 
Friction resistance reducing layer 

8/27/2013 

1. 8,518,863 
Sliding member 

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Notes

“Antifriction - tending to prevent or reduce friction.”(The Free Dictionary, 9/2/2013)

US Patent 8,759,454 (June 24, 2014), “Low Friction Polymeric Compositions as well as Devices and Device Fabrication Methods based thereon,” Yongmoon M.Kwon, and Leonard Pinchuk (Innovia LLC, Miami, Florida, USA).

Various medical devices (such as catheters and guide wires)  need hydrophilic coatings to reduce friction for maneuvering through blood vessels.  These coating are usually applied in a four step process, adding complexity and cost to fabrication.  Kwon and Pinchuk developed catheter using blends of 50 to 95 wt% hydrophobic polycarbonate polyurethane copolymer and a hydrophilic polyurethane polymer.  The hydrophilic polymer absorbs water up to 500% of its dry weight.  These components are immiscible resulting in phase separation The exposed hydrophilic phase reduces friction without needing separate coating steps.

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Patent Abstracts

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Interested!!
Bookmark this page to follow future developments!.
(RDC 7/16/2012)

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Roger D. Corneliussen
Editor
www.maropolymeronline.com

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921
E-Mail: cornelrd@bee.net  

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Copyright 2013 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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* Date of latest addition; date of first entry is 9/2/2013.