Polymeric compositions useful as rheology modifiers and methods for making such compositions
US8389452B2 · kind B2 · utility
2Cited by
73References
25Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 16, 2010 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Jan 22, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/68
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed are rheology modifiers comprising compositionally disperse polymeric compositions and/or crystallinity disperse polymeric compositions that may be useful in modifying the rheological properties of lubrication fluids, and methods for making such compositions. The compositionally disperse polymeric composition are formed from at least two discrete compositions of ethylene copolymers. The crystallinity disperse polymeric composition are formed from ethylene copolymers having at least two discrete values of residual crystallinity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.