abstract |
The present invention relates to fillers, such as inorganic oxides, which have been chemically treated to have a carbon content of greater than 1% by weight, a mercapto content of at least 0.15% by weight, a silane conversion index of at least 0.3, and a standard strengthening index of at least 4. will be. The present invention also provides a polymer composition comprising the filler thus treated. |