Ashless Phosphorus-Containing Lubricating Oil Additives 107
TABLE 3.18 Principal Suppliers of Ashless Phosphorus-Containing Lubricating Oil AdditivesProducer
Neutral
Phosphates
Alkyl/Aryl Acid Phosphates
Amine
Phosphates
Neutral
Phosphites
Acid
Phosphites
Alkyl
Phosphonates
Alkyl
Aryl
Nonethoxylated
Ethoxylated
Alkyl
Aryl
Asahi Denka
××
Chemtura ×
×
×
×
×
Ciba Spec. Chem.
×
×
×
Croda
×
×
×
Daihachi
×
×
Dover Chemicals
××
Johoku Chemicals
×
×
×
×
×
Krishna
××
Lanxess
×
×
Libra Chemicals
×
×
×
Rhein Chemie
×
×
×
Rhodia
×
×
×
×
×
×
×
×
×
Sumitomo
××
Supresta
×
×
United Phosphorus
×
×
×
Vanderbilt
×