This can be caused by insufficient addition of viscosity index improvers (or viscosity index modifiers) .
What does VII stand for?
VII stands for Viscosity Index Improver
This definition appears frequently and is found in the following Acronym Finder categories:
- Science, medicine, engineering, etc.
See other definitions of VII
We have 33 other meanings of VII in our Acronym Attic
- Vietnamese Institute for Human Rights (formerly Vietnamese Research Centre for Human Rights)
- Vihreä Liitto (Finnish: Green League)
- Vancouver Island Human Rights Coalition (British Columbia, Canada)
- Vancouver Island Human Rights Committee (Public Service Alliance of Canada British Columbia)
- Victorian Infant Hearing Screening Program (Australia)
- 7 (Roman numeral)
- Vaccine Independence Initiative (UN, WHO)
- Value Investor Insight (Vienna, VA)
- Vehicle Infrastructure Integration
- Ventures International, Inc. (Vienna, VA)
- Visible Imaging Investigations
- VII zymogen into its active form
- Virgin Islands Improvement Association
- Vanderbilt Institute for Integrative Biosystems Research and Education (Nashville, TN)
- Factor VII Coagulant
- Vehicle Infrastructure Integration Consortium
- Vashon Island Inclusive Community Network (special needs support group; Vashon, WA)
- Vehicular Intra/Inter Communications System
- Visual Images, Identifications and Detections Office (UK)
- Visual Imagery and Intrusion Detection Systems
Samples in periodicals archive:
In its initial phase, the facility will produce down-sheared and functionalized polymers for use as viscosity index improvers.
Intrinsic Viscosity and Viscosity Index Improver Characteristics Intrinsic viscosity links the effect of polymer-solvent interaction to the hydrodynamic behavior of dilute polymer solutions (58) and [[eta]] is typically calculated by extrapolation of the reduced viscosity ([[eta].
The market for Lubricating Oil Additives is further analyzed in Thousand Metric Tons and US$ Million by the following Functional Segments: Antioxidants, Antiwear Agents, Corrosion Inhibitors, Detergents, Dispersants, Extreme Pressure Additives, Foam Control Agents, Pour Point Depressants, Viscosity Index Improvers, and Other Lube Additives.
INTRODUCTION, METHODOLOGY & PRODUCT DEFINITIONS 1 Study Reliability and Reporting Limitations 1 Disclaimers 2 Data Interpretation & Reporting Level 2 Quantitative Techniques & Analytics 3 Product Definitions and Scope of Study 3 Petroleum Additives 3 Fuel Oil Additives 4 Lubricating Oil Additives 4 Antioxidants 4 Antiwear Agents 5 Corrosion Inhibitors 5 Detergents 5 Dispersants 5 Extreme Pressure Additives 5 Foam Control Agents 5 Pour Point Depressants 6 Viscosity Index Improvers 6 Other Lube Additives 6 2.
The specific end-use segments discussed are Antioxidants, Antiwear Agents, Corrosion Inhibitors, Detergents, Dispersants, Extreme Pressure Additives, Foam Control Agents, Pour Point Depressants, and Viscosity Index Improvers.
Some function classes like dispersants, antioxidants, friction modifiers, and viscosity index improvers are growth opportunities due to the increased focus on engine oil longevity, the need for greater oxidation inhibition, the use of biofuels, and the increased use of multigrades.
A very different ap-plication that grew out of this work is the use of S-EP all-blocks as viscosity index improvers in motor oils (ref.