公开(公告)号：US20190382680A1

公开(公告)日：2019-12-19

申请号：US16232610

申请日：2018-12-26

Applicant: ExxonMobil Research and Engineering Company

Inventor： John K. GRAHAM ,  Nabila BRABEZ ,  John ZACHARKOW ,  Raymond C. ENNIS ,  James E. SPAGNOLI

IPC: C10M169/00 ,  C10M105/06 ,  C10M107/02 ,  C10M111/04 ,  C10M117/04 ,  C10M117/06 ,  C10M135/18 ,  C10M137/10 ,  C10M143/02 ,  C10M143/04 ,  C10M161/00

Abstract: The present disclosure provides a lithium complex grease with high-temperature resistivity and a method of using the same. The lithium complex grease includes: a lithium complex thickener, a friction modifier, a polymer or copolymer, and at least one synthetic base oil with alkylated naphthalene. The lithium complex grease can be substantially free of polytetrafluoroethylene. Furthermore, the lithium complex grease provides a median failure rate via a ball bearing test (e.g., using the FE9 grease life test method of DIN 51 821) performed at 160° C. of no less than 100 hours.

公开(公告)号：US20190062669A1

公开(公告)日：2019-02-28

申请号：US16010704

申请日：2018-06-18

Applicant: ExxonMobil Research and Engineering Company

Inventor： Nabila BRABEZ ,  John K. GRAHAM ,  James E. SPAGNOLI ,  Raymond C. ENNIS ,  John ZACHARKOW

IPC: C10M169/06 ,  C10M105/06 ,  C10M107/02 ,  C10M111/04 ,  C10M121/00 ,  C10M135/18 ,  C10M137/10 ,  C10M143/02 ,  C10M143/04 ,  C10M161/00

Abstract: The present disclosure provides a lithium complex grease with high-temperature resistivity and a method of making the same. The lithium complex grease includes: a lithium complex thickener, a friction modifier, a polymer or copolymer, and at least one synthetic base oil with alkylated naphthalene. The lithium complex grease can be substantially free of polytetrafluoroethylene. Furthermore, the lithium complex grease can have a median failure rate with via ball bearing test (e.g., using the FE9 grease life test method of DIN 51 821) performed at 160° C. of no less than 100 hours.

公开(公告)号：US20190016984A1

公开(公告)日：2019-01-17

申请号：US16029873

申请日：2018-07-09

Applicant: ExxonMobil Research and Engineering Company

Inventor： Craig J. EMETT ,  John K. GRAHAM ,  John ZACHARKOW ,  Nabila BRABEZ ,  James E. SPAGNOLI

IPC: C10M117/04 ,  C10M169/02 ,  C10M177/00 ,  C07C51/41 ,  C07C51/44

Abstract: This disclosure relates to a continuous process for preparing a grease thickener product in which operating conditions of the continuous process can be varied to obtain desired grease product properties. The process includes: (a) introducing a C3 to C30 hydroxy fatty acid or a C3 to C30 hydroxy fatty acid ester, and a metal base into a reaction zone; (b) operating the reaction zone at a temperature between 100° C. and 240° C. to react the C3 to C30 hydroxy fatty acid or the C3 to C30 hydroxy fatty acid ester, and the metal base, to produce a grease thickener product; (c) introducing the grease thickener product of step (b) into a flash chamber zone; and (d) operating the flash chamber zone at a temperature sufficient to remove volatiles from the grease thickener product of step (b). The continuous process conditions afford a production throughput of grease thickener product of greater than 8,000 pounds per hour.