238000004519 manufacturing process Methods 0.000 title abstract description 6.239000010687 lubricating oil Substances 0.000 title claims abstract description 8.238000005336 cracking Methods 0.000 title claims abstract description 12.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from IT25567A/79 external-priority Application filed by Agip Petroli SpA filed Critical Agip Petroli SpA Application granted granted Critical Publication of US4327237A publication Critical patent/US4327237A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee Agip Petroli SpA Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US06/156,428 Inventor Luigi Imparato Giampaolo Gerbaz Enrico Betta Current Assignee (The listed assignees may be inaccurate.
VISCOSITY INDEX IMPROVER MANUFACTURERS PDF
Google Patents Process for preparing viscosity index improvers for lubricating oils by cracking synthetic rubbers in the liquid phaseĭownload PDF Info Publication number US4327237A US4327237A US06/156,428 US15642880A US4327237A US 4327237 A US4327237 A US 4327237A US 15642880 A US15642880 A US 15642880A US 4327237 A US4327237 A US 4327237A Authority US United States Prior art keywords viscosity index lubricating oils solution index improvers viscosity Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US4327237A - Process for preparing viscosity index improvers for lubricating oils by cracking synthetic rubbers in the liquid phase US4327237A - Process for preparing viscosity index improvers for lubricating oils by cracking synthetic rubbers in the liquid phase
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