Patent · US Expired

Control of rheological and mechanical properties of silicone elastomers containing silica filler

US5990223A · kind A · utility

4Cited by
4References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 17, 1998
Grant dateNov 23, 1999
Priority date
Expiry dateFeb 17, 2018

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08K3/36
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A method of controlling silica reinforcement in a curable silicone composition having a desired property related to the silica reinforcement comprising adding to the curable silicone composition a volume fraction of reinforcing silica filler sufficient to provide the desired property, where the volume fraction is determined by use of a regression analysis equation relating the volume fraction, Carman surface area (CSA), and Burnauer-Emmet-Teller surface area (BET) of the reinforcing silica filler to the desired property.

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