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Fluoropolymers and antirust agents using them as active ingredients

A technology of active ingredients and anti-rust agents, applied in anti-corrosion coatings, other chemical processes, coatings, etc., to achieve effective anti-rust effects

Active Publication Date: 2021-06-18
UNIMATEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] However, fluorine-containing copolymers commonly used as surface treatment agents such as mold release agents and oil bars prepared using perfluoroalkyl (meth)acrylates as monomers do not always have satisfactory para- adhesion to materials and need to improve their processing durability

Method used

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  • Fluoropolymers and antirust agents using them as active ingredients
  • Fluoropolymers and antirust agents using them as active ingredients
  • Fluoropolymers and antirust agents using them as active ingredients

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0102] The present invention is described below with reference to examples.

Synthetic example 1

[0104] (1) In a 1200mL autoclave equipped with a stirrer and a thermometer, add 529 grams (0.86mol) of CF 3 (CF 2 ) 3 (CH 2 CF 2 )(CF 2 CF 2 ) 2 I (99.9 GC%) and 5 g of di-tert-butyl peroxide, and the autoclave was degassed with a vacuum pump. When the internal temperature rose to 80° C., ethylene was successively introduced into the autoclave to adjust the internal pressure to 0.5 MPa. When the internal pressure dropped to 0.2 MPa, ethylene was introduced again to increase the internal pressure to 0.5 MPa. This operation was repeated to introduce 34 g (1.2 mol) of ethylene in about 3 h while maintaining the internal temperature at 80-115°C. The contents were collected at an internal temperature below 50 °C to give 550 g (yield: 99.4%) of CF 3 (CF 2 ) 3 (CH 2 CF 2 )(CF 2 CF 2 ) 2 (CH 2 CH 2 ) I (99.1 GC%).

[0105] (2) In a 200mL three-necked flask equipped with a condenser and a thermometer, add 150 grams (0.24mol) of CF prepared in (1) above 3 (CF 2 ) 3...

Synthetic example 2

[0114]60.0g (0.11mol) of the reaction product (95.4GC%), 29g of toluene, 1.6g of p-toluenesulfonic acid and 0.07g of hydroquinone prepared in (2) of Synthesis Example 1 were added to a 100mL three-necked tube equipped with a condenser and a thermometer in the flask. After the internal temperature rose to 100°C, 12 g (0.14 mol) of methacrylic acid was added to the flask, followed by stirring at an internal temperature of 118°C for 3 hours. After the reaction was completed, it was cooled, and then 82 g of the reaction solution was collected. Toluene was removed with an evaporator, and 64 g of the residue was washed with tap water to obtain 60.8 g (yield: 86%) of a reaction product (89 GC%) that was a colorless transparent liquid at room temperature as a lower layer.

[0115] The reaction product was distilled under reduced pressure at an internal pressure of 0.2 kPa, an internal temperature of 125 to 155° C. and a tower top temperature of 84 to 86° C. to obtain 42.2 g (distilla...

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PUM

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Abstract

The fluorine-containing copolymer uses (A), (B) and (C) as copolymerization units, and makes component (C) account for 0.01wt% to 5wt% of the whole copolymer to be obtained by copolymerization, wherein (A) is obtained by general Formula: C n f 2n+1 (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 CH 2 ) c OCOCR=CH 2 [I] (R: hydrogen atom or methyl group, n: 1-6, a: 1-4, b: 1-3, c: 1-3) polyfluoroalkyl alcohol (meth)acrylic acid derivative ; (B) by the general formula: CH 2 = CRCOOR 3 [III] (R is a hydrogen atom or a methyl group, R 3 : C that can contain oxygen atoms 1 ~C 30 A fluorine-free (meth)acrylate represented by a linear, branched or cyclic hydrocarbon group); (C) is represented by the following general formula: CH 2 =CRCOO(H) p (R 4 Y) q [IV] (R: hydrogen atom or methyl group, p, q: 0 or 1 and p+q: 1, R 4 : C that can contain oxygen atoms 1 ~C 30 A functional group-containing (meth)acrylic acid or its ester represented by a linear, branched or cyclic hydrocarbon group, Y: phosphoric acid group or epoxy group).

Description

technical field [0001] The present invention relates to a fluorine-containing polymer and an antirust agent using the polymer as an active ingredient. More particularly, the present invention relates to fluoropolymers which are copolymers of (meth)acrylic acid derivatives containing perfluoroalkyl groups of 6 or fewer carbon atoms which are considered to be low in bioaccumulation and to the polymers Rust inhibitor as an active ingredient. Background technique [0002] Acrylic acid derivatives of alcohols containing perfluoroalkyl groups (such as CF 3 (CF 2 ) 7 CH 2 CH 2 OCOCH=CH 2 ) is used in large quantities as a synthetic monomer of a fluorine-containing copolymer constituting a water and oil repellent for fibers. Perfluoroalkyl alcohols as their acrylated precursors are widely used as, for example, surfactants. (Patent Document 1) [0003] In Patent Document 2, it is described that in a surface treatment agent for a substrate, the water and oil repellency exhibi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/24C09K3/18
CPCC09K3/18C08F220/24C08F220/22C09D5/08C08F220/325C09D133/16C08F220/1818C08F220/1811C08F220/387C08F220/1807C08F230/02C08F220/14C08F220/06C08F220/34C23F11/173C08F220/18C08F220/32C08F220/38C08F2/18C08F2/28C08F2/30C08F220/385
Inventor 木岛哲史
Owner UNIMATEC CO LTD
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