CN1364820A - Viscosity index improver for disperse anti-oxygen type ethylene-propylene copolymer and its preparaing method - Google Patents
Viscosity index improver for disperse anti-oxygen type ethylene-propylene copolymer and its preparaing method Download PDFInfo
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- CN1364820A CN1364820A CN 01106073 CN01106073A CN1364820A CN 1364820 A CN1364820 A CN 1364820A CN 01106073 CN01106073 CN 01106073 CN 01106073 A CN01106073 A CN 01106073A CN 1364820 A CN1364820 A CN 1364820A
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- propylene copolymer
- ethylene
- viscosity index
- index improver
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Abstract
The dispersive anti-oxygen type viscosity index improver consists of ethylene-propylene copolymer liquid, maleic anhydride grafting agent, initiator, polyene polyamine compound and aniline compound. It has the features of easy-to-obtain material, high performance and low cost, the optimal technological conditions for preparing the improver are provided.
Description
The present invention relates to a kind of multipolymer and preparation method thereof.
Adopt the dispersant antioxidant ethylene-propylene copolymer as the high-grade multi-stage combustion engine oil viscosity of the above rank of SF, CD index improving agent, only disclosed the raw material that this improving agent adopted in the relevant abroad report, be chaff amine, allylamine, oleyl amine etc. as the aminate that in the amination process, uses, connect the anti-oxidant compound that uses in the polyphenoils reaction process and be 3-nitrosodiphenylamine, 4-nitrosodiphenylamine, 4-nitroso-group-2,3-dimethyl pentanoic, 4-nitrosophenol, and not about the relevant report at the manufacturing condition that these reactants adopted.The object of the present invention is to provide a kind of dispersant antioxidant ethylene-propylene copolymer viscosity index improver, improving agent is raw materials used to be easy to get and cheap.
Another object of the present invention is to provide a kind of method for preparing the dispersant antioxidant ethylene-propylene copolymer viscosity index improver, utilizes this method can the obtained performance good quality production.
The composition of dispersant antioxidant ethylene-propylene copolymer viscosity index improver provided by the invention is:
Ethylene-propylene copolymer glue datum quantity (weight)
0.2～0.9% (weight) of maleic anhydride graft agent datum quantity
0.06～0.25% (weight) of initiator benchmark amount
0.12～1.0% (weight) of polyamines polyene compounds datum quantity
0.1～0.8% (weight) of amino benzenes compounds datum quantity
Initiator of the present invention can be peroxidized t-butyl perbenzoate or ditertiary butyl peroxide.The polyamines polyene compounds is diethylenetriamine or triethylene tetramine.Amino benzenes compounds is 4-nitrosodiphenylamine or 3-nitrosodiphenylamine.
The method that the present invention prepares the dispersant antioxidant ethylene-propylene copolymer viscosity index improver is to carry out according to the following steps:
1, graft reaction, the maleic anhydride graft agent of adding 0.2～0.9% and 0.06～0.25% initiator in ethylene-propylene copolymer glue (datum quantity), reaction is 2～6 hours under the temperature condition of 130～210 ℃ (preferred 160～200 ℃), preferred 3～4 hours.
2, amination reaction adds 0.12～1.0% polyamines polyene compounds (is datum quantity with the ethylene-propylene copolymer glue) in step (1) products therefrom, reaction is 1～4 hour under 120～200 ℃ of (preferred 130～180 ℃) temperature condition, preferred 2～3 hours.
3, connect the polyphenoils reaction, in step 2 products therefrom, add 0.1～0.8% amino benzenes compounds (is datum quantity with the ethylene-propylene copolymer glue), reaction is 1～3 hour under 120～200 ℃ of (preferred 140～170 ℃) temperature condition, preferred 1～2 hour, products therefrom was the dispersant antioxidant ethylene-propylene copolymer viscosity index improver.
Characteristics of the present invention are: the raw material of preparation improving agent is easy to get and is cheap, provided the optimum process condition of preparation improving agent, the every quality index of producing with this method of product, physicochemical property and foreign like product (moral scholar's company's T LA7700) are suitable, (comparative result is seen literary composition back subordinate list), and product price is significantly less than external product.Test shows that after the original formulation total dose reduced one percentage point, formation testing was still by checking the MSIIID bench testing of antioxygen property.
The invention will be further described below by embodiment, but be not limited to following embodiment.
Embodiment 1
In there-necked flask, put into the ethylene-propylene copolymer glue of 150g with stirring and nitrogen protection; wherein dried agent content is 10%; thinning oil is HVI150; glue is heated; when rising to 160 ℃, add the agent of 0.55g maleic anhydride graft, then add 0.15g peroxidized t-butyl perbenzoate initiator; react after 3 hours and jetted 1 hour, remove unreacted maleic anhydride with nitrogen bubble.Add the 0.5g diethylenetriamine after reducing the temperature to 140 ℃ again, reacted 1.5 hours, temperature is raised to 150 ℃ again, add 0.45g 4-nitrosodiphenylamine, reacted 1 hour, obtain the Vandyke brown viscous fluid and be the dispersant antioxidant ethylene-propylene copolymer viscosity index improver.
Embodiment 2
Have stir and the there-necked flask of nitrogen protection in put into the 150g ethylene-propylene copolymer glue identical with example 1, when glue temperature was raised to 180 ℃, adding 0.9g maleic anhydride then added 0.25g peroxidized t-butyl perbenzoate initiator.React after 2 hours, removed the unreacted maleic anhydride in 1 hour, add the 0.35g triethylene tetramine after reducing the temperature to 160 ℃ again, reacted 2 hours, add 0.6g 3-nitrosodiphenylamine again, reacted 3 hours, promptly obtain the Vandyke brown the finished product with nitrogen bubble winding-up.
Embodiment 3
Have stir and the there-necked flask of nitrogen protection in put into the 150g ethylene-propylene copolymer glue identical with example 1, when glue temperature was raised to 200 ℃, adding 0.75g maleic anhydride then added 0.3g ditertiary butyl peroxide initiator.React after 4 hours, removed the unreacted maleic anhydride in 1 hour, add the 0.9g diethylenetriamine after reducing the temperature to 150 ℃ again with nitrogen bubble winding-up, reacted 2.5 hours, and when again temperature being raised to 170 ℃, added 0.3g 4-nitrosodiphenylamine, reacted 2 hours, and promptly obtained the finished product.
Claims (2)
1, a kind of dispersant antioxidant ethylene-propylene copolymer viscosity index improver is characterized in that it is made up of following component:
Ethylene-propylene copolymer glue base weight (weight)
0.2～0.9% (weight) of maleic anhydride graft agent datum quantity
0.06～0.25% (weight) of initiator benchmark amount
0.12～1% (weight) of polyamines polyene compounds datum quantity
0.1～0.8% of amino benzenes compounds datum quantity.(weight)
2, the method for the dispersant antioxidant ethylene-propylene copolymer viscosity index improver of preparation claim 1 is characterized in that this method is to carry out according to the following steps:
(1) graft reaction, the maleic anhydride graft agent of adding 0.2～0.9% and 0.06～0.25% initiator reacted under 130～210 ° temperature condition 2～6 hours in ethylene-propylene copolymer glue (datum quantity);
(2) amination reaction adds 0.12～1.0% polyamines polyene compounds (is datum quantity with the ethylene-propylene copolymer glue) in step (1) products therefrom, reacted 1～4 hour under 120～200 ℃ of temperature condition;
(3) connect the polyphenoils reaction, in step 2 products therefrom, add 0.1～0.8% amino benzenes compounds (is datum quantity with the ethylene-propylene copolymer glue), reacted 1～3 hour under 120～200 ℃ of temperature condition, products therefrom is the dispersant antioxidant ethylene-propylene copolymer viscosity index improver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01106073 CN1364820A (en) | 2001-01-11 | 2001-01-11 | Viscosity index improver for disperse anti-oxygen type ethylene-propylene copolymer and its preparaing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 01106073 CN1364820A (en) | 2001-01-11 | 2001-01-11 | Viscosity index improver for disperse anti-oxygen type ethylene-propylene copolymer and its preparaing method |
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| CN1364820A true CN1364820A (en) | 2002-08-21 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653696A (en) * | 2011-03-03 | 2012-09-05 | 中国石油天然气股份有限公司 | Viscosity index improver and preparation method thereof |
| CN106281580A (en) * | 2015-06-29 | 2017-01-04 | 中国石油天然气股份有限公司 | The preparation method of soot ashless dispersant |
| CN110452755A (en) * | 2018-05-08 | 2019-11-15 | 中国石油天然气股份有限公司 | Viscosity index improver and preparation method thereof |
| CN111040842A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Diesel engine oil composition and preparation method thereof |
| CN111040824A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Viscosity index improver and preparation method and application thereof |
| CN111040082A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Viscosity index improver and preparation method and application thereof |
| CN111040840A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Diesel engine oil composition and preparation method thereof |
| CN111040843A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Gasoline engine oil composition and preparation method thereof |
| CN111040841A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Gasoline engine oil composition and preparation method thereof |
-
2001
- 2001-01-11 CN CN 01106073 patent/CN1364820A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653696A (en) * | 2011-03-03 | 2012-09-05 | 中国石油天然气股份有限公司 | Viscosity index improver and preparation method thereof |
| CN102653696B (en) * | 2011-03-03 | 2014-01-15 | 中国石油天然气股份有限公司 | Viscosity index improver and preparation method thereof |
| CN106281580A (en) * | 2015-06-29 | 2017-01-04 | 中国石油天然气股份有限公司 | The preparation method of soot ashless dispersant |
| CN110452755A (en) * | 2018-05-08 | 2019-11-15 | 中国石油天然气股份有限公司 | Viscosity index improver and preparation method thereof |
| CN110452755B (en) * | 2018-05-08 | 2022-02-01 | 中国石油天然气股份有限公司 | Viscosity index improver and preparation method thereof |
| CN111040842A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Diesel engine oil composition and preparation method thereof |
| CN111040824A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Viscosity index improver and preparation method and application thereof |
| CN111040082A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Viscosity index improver and preparation method and application thereof |
| CN111040840A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Diesel engine oil composition and preparation method thereof |
| CN111040843A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Gasoline engine oil composition and preparation method thereof |
| CN111040841A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Gasoline engine oil composition and preparation method thereof |
| CN111040082B (en) * | 2018-10-15 | 2022-10-21 | 中国石油化工股份有限公司 | Viscosity index improver and preparation method and application thereof |
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