Technical Paper Archive


This site contains all papers presented at Rubber Division, ACS Technical Meetings from 2000-2018. Meetings prior to 2000 are incomplete and papers are added as they are digitized.


For older papers not listed here, please send your request, including Meeting Year, Title, Author, and Paper # to: cbrady@rubber.org


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THE USE OF DIALKYL PARAPHENYLENE DIAMINE OR 2, 4, 6-TRIS-(N-1, 4-DIMETHYL PENTYL-PPHENYLENE DIAMINE) 1, 3, 5 TRIAZINE FOR A LONG TERM STATIC OZONE CRACK RESISTANCE IN TIRE BLACK SIDEWALL.

1999spring65 hong

Event: 155th Technical Meeting - (INCOMPLETE)
Location: Chicago, IL
Date: April 13, 1999
Author: SUNG W. HONG and PETER K. GREENE
Paper Number: 65

Price: $20.00

  • Most tire companies experience a wax blooming problem due to the need for high
    levels of wax in their tire sidewall to protect against static ozone cracking during
    storage. Current sidewall compounds contain alkyl aryl paraphenylene diamines
    such as 6PPD or IPPD for dynamic ozone protection, but they do not provide
    adequate static ozone protection. Therefore, the combination of 6PPD or IPPD with
    blended waxes have been used for many years in sidewall compounds.
    In this paper, either the use of low levels of wax or its complete elimination in the
    tire sidewall by combinations with Dialkyl Paraphenylene Diamine (77PD) or
    2, 4, 6 -Tris - (N - 1, 4 Dimethyl Pentyl - p - Phenylene Diamino) 1, 3, 5 Triazine
    (TAPDT) will be presented for obtaining long term dynamic ozone crack resistance.
    Also, a proposed mechanism of how ozone reacts with the antiozonants will be
    discussed. Laboratory test results will be presented to confirm our proposed
    mechanism and optimize the antiozonant level for long term dynamic and static
    ozone protection in the tire sidewall.

    Papers from 155th Technical Meeting - (INCOMPLETE)

    Items from 155th Technical Meeting - (INCOMPLETE)