Title:
【発明の名称】新規な粘度指数増強用組成物およびニュートン型潤滑油ブレンド
Document Type and Number:
Japanese Patent JP2873507
Kind Code:
B2
Abstract:
A novel composition is disclosed that is particularly useful as a lubricant viscosity index improver. The composition comprises branched branched C30-C10000 hydrocarbons that have a branch ratio of less than 0.19 and viscosity at 100 DEG C. between 725 CS and 15,000 cS. The novel compositions comprise the product of the oligomerization of C6 to C20 alpha-olefin feedstock, or mixtures thereof, under oligomerization conditions at a temperature between -20 DEG C. and +90 DEG C. in contact with a reduced valence state Group VIB metal catalyst on porous support. The compositions have viscosities at 100 DEG C. between 725 cS and 15,000 cS. Using the foregoing compositions in admixture with mineral oil and synthetic lubricants provides novel lubricant blends that show an elevated viscosity index. The mixtures also show an increased stability to shear stress at high temperature with all blends notable by exhibiting Newtonian flow.
Inventors:
JAKUSON ANDORYUU
CHU ARISU SHEN
UU MAAGARETSUTO MEIISAMU
PERURIN BURUUSU PATORITSUKU
CHU ARISU SHEN
UU MAAGARETSUTO MEIISAMU
PERURIN BURUUSU PATORITSUKU
Application Number:
JP50709990A
Publication Date:
March 24, 1999
Filing Date:
April 24, 1990
Export Citation:
Assignee:
MOOBIRU OIRU CORP
International Classes:
C08F4/60; C08F4/69; C08F10/00; C08F10/14; C10G50/02; C10M143/08; C10M127/02; C08F110/14; C08F210/14; C10N20/04; C10N30/02; C10N40/04; C10N40/08; C10N40/25; C10N70/00; (IPC1-7): C10M127/02; C10M143/08
Other References:
【文献】西独国特許出願公開3427319(DE,A1)
Attorney, Agent or Firm:
Takehiko Saito