METHOD OF PRODUCING ELECTRICALLY CONDUCTIVE FOAM RUBBER ROLLER, ELECTRICALLY CONDUCTIVE FOAM RUBBER ROLLER, AND IMAGE FORMING APPARATUS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Feb 12, 2015
app pub date -
Jul 22, 2014
filing date -
Aug 7, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention provides a production method for producing an electrically conductive foam rubber roller which has a tubular body free from internal abnormal foaming and hence free from internal cracking after the foaming. The production method includes the steps of: continuously extruding a rubber composition into a tubular body (7); and passing the extruded tubular body (7) through a microwave crosslinking device (8) and then through a hot air crosslinking device (9) in an elongated state without cutting the tubular body. The rubber composition is extruded, foamed and crosslinked so that the tubular body has a thickness unevenness of not greater than 1.3 immediately after being passed through the hot air crosslinking device (9), the thickness unevenness being defined as a ratio Tmax/Tmin between a maximum radial thickness Tmax and a minimum radial thickness Tmin of the tubular body which are each measured in a cross section of the tubular body.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully