Derivatized ethylene/polar monomer polymers of improved performance
US4108612A · kind A · utility
5Cited by
4References
9Claims
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Key dates
| Filing date | Apr 4, 1977 |
| Grant date | Aug 22, 1978 |
| Priority date | — |
| Expiry date | Apr 4, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/208
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Middle distillate oils are improved with respect to flow and pour point by incorporating therein halogenated polymers comprised of ethylene and free radical polymerizable monomers containing polar groups. The halogenated ethylene-polar monomer copolymers are found to be more effective flow improvers and pour depressants than non-halogenated ethylene-polar monomer copolymers. Preferred polymeric additives include the ethylene-isobutyl acrylate copolymers and the ethylene-vinyl acetate copolymers containing from about 5 to about 25 wt.% chlorine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.