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CURE-RITE IBT
N,N,N',N' - tetraisobutylthiuram disulfide
Cure-Rite IBT is a non-staining ultra accelerator for EPDM, SBR, Nitrile, and Natural rubbers that produces very low levels of nitrosoamines (100 times less than common thiurams).
Cure-Rite IBT is a fast curing accelerator that creates shorter sulfur-sulfur crosslinks in rubber vulcanizates.
IBT increases cure rate but with greater scorch safety than comparable thiurams.
This allows for safer working environments while at the same time improving processing conditions of mechanical rubber goods. Cost of IBT is much less than other lownitrosoamine thiurams such as TBzTD.
Possible accelerators that IBT may replace include TMTD, TETD, DPTT, TMTM, TBzTD and some dithiocarbamates.
The good scorch protection combined with good cure time of the IBT allows for higher processing temperatures and mold temperatures which may translate to shorter cycle times or allow successful molding of hard-to-process stocks.
Curerite IBT is also remarkable in that it results in less reversion of natural rubber compounds than comparable accelerators: again this may allow shorter, higher temperature cures.
In combination with Cure-rite?18, natural rubber compounds with good scorch safety can be made with flatplateau cure curves at 350'F.
Appearance: pale yellow powder
Heat Loss: <1.0%
Melting Point: 70-73'C
Specific Gravity: 1.14
Solubility: negligible in water
Industrial field additive, rubber & additives
Akrochem Chemical Co
Phone 330-535-2100; 800-321-2260
Fax 330-535-8947
Homepage www.akrochem.com
E-mail kristenspurlock@akrochem.com
Address 255 Fountain St., Akron, OH 44304-1991
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