Migration of air release in lubricant base stocks
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10M-127/02
C10M-169/04
C10M-105/02
C10G-071/00
C10M-171/00
출원번호
US-0947570
(2013-07-22)
등록번호
US-9359573
(2016-06-07)
발명자
/ 주소
Baker, Jr., Charles Lambert
Gooding, Beatrice Marie
Naegely, Paul Carl
출원인 / 주소
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
대리인 / 주소
Migliorini, Robert A.
인용정보
피인용 횟수 :
0인용 특허 :
28
초록▼
A method of improving air release in lubricant base stocks and lubricating oils is provided. The method includes providing a Group I base stock, a Group II base stock or a combination thereof and adding to the base stock an effective amount of C7 to C80 paraffin, wherein the lubricant base stock pro
A method of improving air release in lubricant base stocks and lubricating oils is provided. The method includes providing a Group I base stock, a Group II base stock or a combination thereof and adding to the base stock an effective amount of C7 to C80 paraffin, wherein the lubricant base stock provides air release according to the ASTM D3427 test at least 20% lower than the same lubricant base stock not including the C7 to C80 paraffin. Also provided are lube base stocks and lubricating oils with improved air release and methods of making such base stocks and oils.
대표청구항▼
1. A method of mitigating air release in lubricant base stocks comprising: providing a Group I base stock, a Group II base stock or a combination thereof which are substantially free of additives, andadding to the base stock an effective amount of a C6 to C80 paraffin, wherein the lubricant base sto
1. A method of mitigating air release in lubricant base stocks comprising: providing a Group I base stock, a Group II base stock or a combination thereof which are substantially free of additives, andadding to the base stock an effective amount of a C6 to C80 paraffin, wherein the lubricant base stock provides air release according to the ASTM D3427 test of at least 20% lower than the same base stock not including the C6 to C80 paraffin,wherein no other additives are added to the base stock prior to or during the step of adding the C6 to C80 paraffin to the base stock,wherein the effective amount of the C6 to C80 paraffin ranges from 0.02 to 8 wt %, andwherein the C6 to C80 paraffin is chosen from the group consisting of n-hexane, n-heptane, n-dodecane, nonadecane, n-hexadecane, and cyclohexane. 2. The method of claim 1, wherein the C6 to C80 paraffin is n-heptane. 3. The method of claim 2, wherein the Group I base stock is chosen from the group consisting of Group I light neutral, Group I heavy neutral and bright stock. 4. A lubricant base stock with improved air release comprising: a Group I base stock, a Group II base stock or a combination thereof and an effective amount of C6 to C80 paraffin, wherein the lubricant base stock provides air release according to the ASTM D3427 test of at least 20% lower than the same base stock not including the C6 to C80 paraffin, wherein the base stock and the C6 to C80 paraffin are substantially free of additives, wherein the effective amount of the C6 to C80 paraffin ranges from 0.02 to 8 wt %, and wherein the C6 to C80 paraffin is chosen from the group consisting of n-hexane, n-heptane, n-dodecane, nonadecane, n-hexadecane, and cyclohexane. 5. The base stock of claim 4, wherein the C6 to C80 paraffin is n-heptane. 6. The base stock of claim 5, wherein the Group I base stock is chosen from the group consisting of Group I light neutral, Group I heavy neutral and bright stock. 7. A method of making a lubricant base stock with improved air release properties comprising: providing a Group I base stock, a Group II base stock or a combination thereof which are substantially free of additives andadding to the base stock an effective amount of C6 to C80 paraffin, wherein the lubricant base stock provides air release according to the ASTM D3427 test of at least 20% lower than the same base stock not including the C6 to C80 paraffin,wherein no other additives are added to the base stock prior to or during the step of adding the C6 to C80 paraffin to the base stock,wherein the effective amount of the C6 to C80 paraffin ranges from 0.02 to 8 wt %, andwherein the C6 to C80 paraffin is chosen from the group consisting of n-hexane, n-heptane, n-dodecane, nonadecane, n-hexadecane, and cyclohexane. 8. The method of claim 7, wherein the C6 to C80 paraffin is n-heptane. 9. The method of claim 8, wherein the Group I base stock is chosen from the group consisting of Group I light neutral, Group I heavy neutral and bright stock. 10. A method of mitigating air release in lubricating oils comprising: providing a lubricant base stock with improved air release comprising a Group I base stock, a Group II base stock or a combination thereof and an effective amount of C6 to C80 paraffin, wherein the lubricant base stock provides air release according to the ASTM D3427 test of at least 20% lower than the same base stock not including the C6 to C80 paraffin, wherein the base stock and the C6 to C80 paraffin are substantially free of additives, andadding to the lubricant base stock at least one additive,wherein the effective amount of the C6 to C80 paraffin ranges from 0.02 to 8 wt %, andwherein the C6 to C80 paraffin is chosen from the group consisting of n-hexane, n-heptane, n-dodecane, nonadecane, n-hexadecane, and cyclohexane. 11. The method of claim 10, wherein the at least one additive is chosen from the group consisting of antiwear, antioxidant, defoamant, demulsifier, detergent, dispersant, metal passivator, friction reducer, rust inhibitor, and any combination thereof. 12. The method of claim 11, wherein the detergent is chosen from the group consisting of an alkaline sulfonate, an ester succinimide, and combinations thereof.
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