Room temperature vulcanizable silicone rubber composition
Abstract
Abstract A ROOM TEMPERATURE VULCANIZABLE SILICONE RUBBER COMPOSITION COMPRISING (A) A HIGH MOLECULAR WEIGHT LIQUID DIORGANOPOLYSILOXANE HAVING TERMINAL HYDROXY GROUPS BONDED TO THE SILICON ATOM AND A VISCOSITY OF 3X10**6 TO 2X10**8 CENTIPOISE AT 25*C., (B) 0-60% BY WEIGHT OF SAID HIGH MOLECULAR WEIGHT ORGANOPOLYSILOXANE OF A LOW MOLECULAR WEIGHT LIQUID ORGANOPOLYSILOXANE HAVING TERMINAL HYDROXY GROUPS BONDED TO THE SILICON ATOMS AND A VISCOSITY OF 100 TO 3.0X10**5 CENTIPOISE AT 25*C. THERE IS ALSO PRESENT A FILLER AND AN ALKYL SILICATE WHICH ACTS AS THE CROSS-LINKING AGENT DURING CURING OF THE COMPOSITION. AS A CATALYST THERE IS USED A METALLIC SALT OF AN ORGANIC MONOCARBOXYLIC ACID. THE COMPOSITION MAY BE MIXED AND PLACED IN THE EAR CANAL TO FORM AN EAR PLUG IN SITU.
Inventors
- 👤 Warren R Lampe
Bibliographic Details
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