Viscosity index improver

Details Viscosity index improver Viscosity index improver

1991-07-11

1993-09-14

Johnson, Jerry

Compositions

Electrolytes for electrical devices

252 55, 5253338, 5263186, 528502, C10M14302, C08F 800, C08F 2006, C08F 600

Patent

active

052445909

ABSTRACT:
Degraded molecular weight copolymers of ethylene alpha-olefin are provided. The ethylene alpha-olefin copolymers, before degradation, are characterized by having a narrow molecular weight distribution and are comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains. The degraded copolymers are useful as viscosity index improvers for oils.

REFERENCES:
patent: 3313793 (1967-04-01), De La Mare et al.
patent: 3316177 (1967-04-01), Dorer, Jr.
patent: 3326804 (1967-06-01), Shih-en Hu
patent: 3332926 (1967-07-01), Baron et al.
patent: 3345352 (1967-10-01), Baron et al.
patent: 3687849 (1972-08-01), Abbott
patent: 3687905 (1972-08-01), Dorer
patent: 3769216 (1973-10-01), Gordon et al.
patent: 4074033 (1978-02-01), Wolinski et al.
patent: 4089794 (1978-05-01), Engel et al.
patent: 4113636 (1978-09-01), Engel et al.
patent: 4132661 (1979-01-01), Waldbillig et al.
patent: 4137185 (1979-01-01), Gardiner et al.
patent: 4144181 (1979-03-01), Elliott et al.
patent: 4160739 (1979-07-01), Stambaugh et al.
patent: 4169063 (1979-09-01), Kiovsky
patent: 4171273 (1979-10-01), Waldbillig et al.
patent: 4201732 (1980-05-01), Wolinski et al.
patent: 4219432 (1980-08-01), Girgenti et al.
patent: 4320019 (1982-03-01), Hayashi
patent: 4372863 (1983-02-01), Elliott et al.
patent: 4516104 (1985-05-01), McDermott
patent: 4517104 (1985-05-01), Bloch et al.
patent: 4632769 (1986-12-01), Gutierrez et al.
patent: 4735736 (1988-04-01), Chung
patent: 4743391 (1988-05-01), Gordon et al.
patent: 4749505 (1988-06-01), Chung et al.
patent: 4780228 (1988-10-01), Gardiner et al.
patent: 4786697 (1988-11-01), Cozewirth et al.
patent: 4789714 (1988-12-01), Cozewirth et al.
patent: 4804794 (1989-02-01), Ver Strate et al.
patent: 4900461 (1990-02-01), Ver Strate et al.
patent: 4925579 (1990-05-01), Stemke
patent: 4963279 (1990-10-01), Rosental et al.
patent: 4966722 (1990-10-01), Smith, Jr.
patent: 5006608 (1991-04-01), Gardiner et al.
patent: 5068047 (1991-11-01), Chung et al.
patent: 5118433 (1992-06-01), Chung et al.
patent: 5167848 (1992-12-01), Chung et al.

Affiliated with

Also associated with

Rating

Viscosity index improver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Viscosity index improver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Viscosity index improver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2024354