Invention Grant
- Patent Title: Unsulfurized alkali metal-free, additive for lubricating oils
- Patent Title (中): 无硫酸碱金属,润滑油添加剂
-
Application No.: US236979Application Date: 1999-01-26
-
Publication No.: US6162770APublication Date: 2000-12-19
- Inventor: Jean-Louis Marie Le Coent , Jacques Cazin , Pierre Tequi
- Applicant: Jean-Louis Marie Le Coent , Jacques Cazin , Pierre Tequi
- Applicant Address: CA San Francisco
- Assignee: Chevron Chemical Company LLC
- Current Assignee: Chevron Chemical Company LLC
- Current Assignee Address: CA San Francisco
- Priority: EPX98400203 19980130
- Main IPC: C07C51/15
- IPC: C07C51/15 ; C10M129/02 ; C10M141/02 ; C10M159/22 ; C10M163/00 ; C10N10/04 ; C10N30/04 ; C10N30/10 ; C10N40/25 ; C10N60/00 ; C10N70/00 ; C10M129/00
Abstract:
An unsulfurized, alkali metal-free, detergent-dispersant composition having from 40% to 60% alkylphenol, from 10% to 40% alkaline earth alkylphenate, and from 20% to 40% alkaline earth single aromatic-ring alkylsalicylate. This composition may have an alkaline earth double aromatic-ring alkylsalicylate as long as the mole ratio of single-ring alkylsalicylate to double aromatic-ring alkylsalicylate is at least 8:1. This composition may be produced by the three-step process involving neutralization of alkylphenols, carboxylation of the resulting alkylphenate, and filtration of the product of the carboxylation step.
Public/Granted literature
- US4979290A Method for soldering electronic component Public/Granted day:1990-12-25
Information query