Patent · US Expired

Method for producing a liquid silicone rubber base

US4649005A · kind A · utility

24Cited by
7References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 12, 1985
Grant dateMar 10, 1987
Priority date
Expiry dateJul 12, 2005

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08J2483/00
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

Filled silicone rubber bases can be prepared without plasticizer by passing all of the filler together with from 30 to 100 percent of the total weight of the polyorganosiloxane ingredient of the base through the first kneading section of a compounding extruder and adding my remaining polyorganosiloxane before passing the composition through a second kneading section of the compounding extruder. The two kneading sections are maintained at temperatures of from 200.degree. to 300.degree. C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.