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A modified ethylene-vinyl acetate copolymer pour point depressant

A vinyl acetate and copolymer technology, applied in the field of modified ethylene-vinyl acetate copolymer pour point depressant, can solve problems such as complex components, poor compatibility of high molecular polymers, and affecting the use effect of industrial devices, and achieve The effect of improving compatibility

Active Publication Date: 2017-05-31
泉州市鹏达电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing known technologies all have the disadvantages of complex components, high cost, poor compatibility between polymers, uneven mixing, etc., which affect the use effect in industrial devices

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1. Preparation of water phase

[0025] Add 1000Kg water and 2Kg polyoxyethylene alkyl ether sodium sulfate into a 2000L autoclave, and stir evenly.

[0026] Step 2. Preparation of oil phase

[0027] In a 200L reactor, mix 100Kg ethylene-vinyl acetate copolymer and 1Kg propenyl-1,3-sultone, then add 0.4Kg cumene hydroperoxide and 0.1Kg sodium bisulfate and stir well.

[0028] Step 3. Suspension Polymerization

[0029] Add the oil phase solution to the reaction kettle equipped with the prepared water phase in step 1, feed 0.5Kg of 2-cyclopentenyl-1-acetic acid, and then react at 50°C for 12 hours, discharge the material after the reaction, and dry to obtain product.

[0030] Step 4. Blending

[0031] The surface-modified ethylene-vinyl acetate copolymer obtained in step 3 of 85Kg is then mixed with 15Kg polycaprolactone to obtain the patented product. The number is T-1.

Embodiment 2

[0033] Step 1. Preparation of water phase

[0034] Add 1000Kg water and 0.5Kg polyoxyethylene alkyl ether sodium sulfate into a 2000L autoclave, and stir evenly.

[0035] Step 2. Preparation of oil phase

[0036] In a 200L reactor, mix 100Kg ethylene-vinyl acetate copolymer and 0.5Kg propenyl-1,3-sultone, then add 0.2Kg cumene hydroperoxide and 0.05Kg sodium bisulfate, and stir well .

[0037] Step 3. Suspension Polymerization

[0038] Add the oil phase solution to the reaction kettle equipped with the prepared water phase in step 1, pass in 0.1Kg of 2-cyclopentenyl-1-acetic acid, and then react at 40°C for 18 hours, discharge the material after the reaction, and dry to obtain product.

[0039] Step 4. Blending

[0040] 75Kg of the surface-modified ethylene-vinyl acetate copolymer obtained in step 3 is then mixed with 25Kg of polycaprolactone to obtain the patented product. The number is T-2.

Embodiment 3

[0042] Step 1. Preparation of water phase

[0043] Add 1000Kg water and 2Kg polyoxyethylene alkyl ether sodium sulfate into a 2000L autoclave, and stir evenly.

[0044] Step 2. Preparation of oil phase

[0045] In a 200L reactor, mix 100Kg ethylene-vinyl acetate copolymer and 2Kg propenyl-1,3-sultone, then add 0.6Kg cumene hydroperoxide and 0.2Kg sodium bisulfate, and stir evenly.

[0046] Step 3. Suspension Polymerization

[0047] Add the oil phase solution to the reaction kettle equipped with the prepared water phase in step 1, feed 1Kg of 2-cyclopentenyl-1-acetic acid, and then react at 70°C for 10 hours, discharge the material after the reaction, and dry to obtain the product .

[0048] Step 4. Blending

[0049] 90Kg of the surface-modified ethylene-vinyl acetate copolymer obtained in step 3 is then mixed with 10Kg of polycaprolactone to obtain the patented product. The number is T-3.

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PUM

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Abstract

The invention provides a modified ethylene-vinyl acetate copolymer pour point depressant. Surface-polymerization-modified ethylene-vinyl acetate copolymers and polycaprolactone are mixed, and the modified ethylene-vinyl acetate copolymer pour point depressant is obtained.

Description

technical field [0001] The invention relates to a pour point depressant, in particular to a modified ethylene-vinyl acetate copolymer pour point depressant. Background technique [0002] Diesel pour point depressant, also known as fluidity improver PPD (Pour Point Depressant), is a kind of oil additive that can keep diesel oil fluidity below its freezing point, so that diesel oil can continue to be used. It is generally an oil-soluble polymer, and most of them have long alkane main chains and polar side chains. Usually, adding a small amount of pour point depressant to waxy crude oil or distillate oil can significantly change the wax crystal morphology and structure in the oil sample, thereby lowering the freezing point and improving the low temperature fluidity of crude oil or distillate oil. [0003] CN 104910977 discloses a diesel pour point depressant, which is made of the following raw materials in parts by weight: 40-60 parts of higher polymethacrylate, 20-30 parts of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L31/04C10L1/196C10L1/198C10L10/14
CPCC10L1/146C10L1/1963C10L1/1983C10L10/14C10L2230/08
Inventor 王琪宇马骏
Owner 泉州市鹏达电子科技有限公司