trimellitate esters are ester fluids with high viscosities for use as specialty lubricants and greases base stocks. Their application include compressor fluids, two stroke oils, greases, chain oils

 

The main advantages of the trimellitate based esters are;

Low volatility, good heat stability, good stability to oxidation, high film strength, good low temperature properties and good hydrolytic stability

 

SPECIFICATIONS: Viscosity CST Viscosity Index  SPECIFIC GRAVITY POUR POINT  FLASH POINT FIRE POINT 
ASTM D2270 20/20 C ASTM D97 C ASTM D92 C ASTM D92 C
TRIMELLITATE ESTERS 40C 100C      
DIOLUBE 1070 C 7 / C 9 trimellitate  (L79TM) 53.00 7.50 103 0.995 -50 254 293
DIOLUBE 1080 tri-2-ethyl hexyltrimellitate  (TOTM)  87.40 9.60 84 0.991 -45 262 300
DIOLUBE 1090 C8/C10 trimellitate (DOTM) 52.00 8.00 86 0.967 -50 276 315
DIOLUBE 1010 iso-C 10 Trimellitate (TIDTM) 140.00 13.00 83 0.968 -36 274 315
DIOLUBE 1013 iso-C 13 trimellitate (TITDTM) 400.00 23.00 67 0.953 -18 276 330

 

 

These materials are produced by the esterification of a range of alcohols with trimellitic anhydride (TMA), which is similar in structure to phthalic anhydride with the exception of a third functionality on the aromatic ring. Consequently, esters are produced in the ratio of three moles of alcohol to one mole of anhydride. Common esters in this family are Tris-2-ethyhexyl trimellitate (Tri-octyl trimellitate - TOTM), L79TM (an ester of mixed semi-linear C7 and C9 alcohols, and L810TM, an ester of mixed C8 and C10 linear alcohols.

 

The principle features of these esters, when processed with PVC, are their low volatility, and consequently large volumes of trimellitate esters are used in high specification electrical cable insulation and sheathing. The extraction and migration resistance of these materials are also significantly improved relative to the phthalates. The low volatile loss also results in usage in automotive interior applications where the issue of windscreen fogging is important. In this respect they often compete with the linear high molecular weight phthalates such as 911P.

 

AVAILABILITY

DIOLUBE ESTERS are available in tank cars, tank trucks and 210 liters drums. Samples are available through Daman Organomer Customer Service.

 

STORAGE AND HANDLING

All DIOLUBE ESTERS can be warehoused in unopened containers at ambient conditions. Please review the latest Material Safety Data Sheet before working with these materials.