Browse Prior Art Database

Compounding Heat Shrinkable Elastomeres

IP.com Disclosure Number: IPCOM000074199D
Original Publication Date: 1971-Mar-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

DeGroat, PM: AUTHOR [+2]

Abstract

Heat shrinkable elastomers are compounded by this method which employs carnauba wax. A polyisoprene or GRS tube with one end closed is first immersed in carnauba wax heated to its melting temperature (85 degrees C) and left for 30 seconds. It is then withdrawn from the wax and wiped dry prior to further cleaning with isopropyl alcohol to remove surface wax. The article is next reheated to 85 degrees C and inflated. It is removed from the heat source and allowed to cool prior to opening the inflating orifice thus leaving the tube in its expanded state. Strips, sheets or bands are then cut from the tube and when heated to 85 degrees C they will shrink to the relaxed dimensions of the original tube section.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Compounding Heat Shrinkable Elastomeres

Heat shrinkable elastomers are compounded by this method which employs carnauba wax. A polyisoprene or GRS tube with one end closed is first immersed in carnauba wax heated to its melting temperature (85 degrees C) and left for 30 seconds. It is then withdrawn from the wax and wiped dry prior to further cleaning with isopropyl alcohol to remove surface wax. The article is next reheated to 85 degrees C and inflated. It is removed from the heat source and allowed to cool prior to opening the inflating orifice thus leaving the tube in its expanded state. Strips, sheets or bands are then cut from the tube and when heated to 85 degrees C they will shrink to the relaxed dimensions of the original tube section.

1