Use of alternate thiol accelerators for crosslinking rubber...

Details Use of alternate thiol accelerators for crosslinking rubber... Use of alternate thiol accelerators for crosslinking rubber...

2005-10-18

2005-10-18

Szekely, Peter (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S070000, C524S071000

Reexamination Certificate

active

06956071

ABSTRACT:
It has been discovered that certain nitrogen-containing thiols other than mercaptobenzothiazole (MBT) perform equivalently as accelerators in preparing asphalt polymer compositions. Typically, the crosslinker in these compositions is sulfur. Nitrogen-containing thiols containing at least one functional group —N═(SH)— have been found to be useful alternate accelerators along with activators such as zinc oxides. Particular nitrogen-containing thiols include, but are not necessarily limited to, 2-mercaptobenzoxazole (MBO), 2-mercapto-5-methyl-1,3,4-thiadiazole (MMTD), and combinations thereof.

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SUPERPAVE Series No. 1 (SP-1), Asphalt Institute, 1997.

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