Process for producing pipe sleeves from mineral wool

Details Process for producing pipe sleeves from mineral wool Process for producing pipe sleeves from mineral wool

2004-04-14

2010-06-22

Dye, Rena L (Department: 1782)

Stock material or miscellaneous articles

Hollow or container type article

C242S160100, C242S528000, C156S184000, C156S188000

Reexamination Certificate

active

07740922

ABSTRACT:
The invention relates to a process for producing pipe sleeves made of mineral wool for insulating pipelines or for reducing the sound level in pipeline systems, comprising the following steps: providing a nonwoven web (11) made of mineral wool which is provided with an uncured binder, winding up the nonwoven web (11) on a winding mandrel (2) of a winder, curing the binder. Here, at least one reinforcing layer (12, 13) is provided before the nonwoven web (11) runs into the winder, in such a way that during the winding the said reinforcing layer becomes a constituent part of the pipe sleeve produced as a result.

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Definition of Roll; Merriam-Webster Online; http://www.merriam-webster.com/dictionary/roll; 2009.

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