Application of alkyl carbonate as industrial solvent

A dialkyl carbonate, industrial technology, applied in the application field of alkyl carbonate, can solve problems such as no literature report, and achieve the effects of wide use, environmental friendliness and good compatibility

Inactive Publication Date: 2008-01-02
SHENZHEN FEIYANG JUNYAN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are basically no related literature reports on the use of dialkyl carbonate for industrial solvents

Method used

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  • Application of alkyl carbonate as industrial solvent
  • Application of alkyl carbonate as industrial solvent
  • Application of alkyl carbonate as industrial solvent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Application of tert-butyl methyl carbonate, n-butyl methyl carbonate and ethylene glycol methyl ether methyl carbonate in polyurethane paint thinner (PU thinner). The composition of various thinners is shown in Table 2.

[0030] Table 2

[0031] Typical polyurethane thinner

[0032] C1 and C2 thinners were prepared according to the ratio of A1: B: thinner = 1:1:0.8 to prepare polyurethane varnishes and spray them on tinplate sheets and polyurethane base plates for performance testing. The results are shown in Table 3:

[0033] table 3

[0034]

[0035] It can be seen from Table 3 that the properties of the paint formulated with C2 thinner in the application example are completely qualified and can completely replace the typical C1 thinner.

Embodiment 2

[0037] Application of tert-butyl methyl carbonate, n-butyl methyl carbonate and ethylene glycol methyl ether methyl carbonate in nitro (NC) lacquer thinner (NC thinner). The composition of various thinners is shown in Table 4.

[0038] Table 4

[0039] Typical NC paint thinner

[0040] Two kinds of NC thinners C3 and C4 were prepared according to the ratio of A2: Thinner = 1:1 to prepare NC varnishes and spray them on the tinplate sheet and polyurethane base plate for performance testing. The results are shown in Table 5:

[0041] table 5

[0042]

[0043] It can be seen from Table 5 that: Application example C4 is used as NC thinner for NC paint, and all performances are qualified. C4 can completely replace C3 typical NC thinner.

Embodiment 3

[0045] Application of tert-butyl methyl carbonate, n-butyl methyl carbonate and ethylene glycol methyl ether methyl carbonate in amino (AC) stoving varnish thinner. The composition of various thinners is shown in Table 6.

[0046] Table 6

[0047] Typical AC paint thinner

C5 formula

In this example AC baking paint thinner

C6 formula

AC baking varnish

A3 formula

Raw material name W / %

Xylene 30

Butanol 10

dimethyl nylon acid

60

ester

Total 100

Raw material name W / %

n-Butyl methyl carbonate 30

Butanol 10

Ethylene glycol methyl ether methyl carbonate 60

Total 100

Raw material name W / %

saturated polyester tree

70

fat

Amino lacquer

20

fat

40% PTSA 2

dimethyl nylon acid

4

ester

Butanol 3

Leveling agent 0.5

Defoamer 0.5

Total 100 ...

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Abstract

The invention discloses a using method of ester dialkyl carbonic acid as industrial solvent, which relates to the application of ester dialkyl carbonic acid and its composition, wherein the structural formula of ester dialkyl carbonic acid is as following; R1 is methyl, ethyl, propyl, butyl or its isomer; R2 is ethyl, propyl, butyl, amyl, hexyl, methoxylethyl, ethyoxylethyl, propoxyethyl, butoxyethyl, methoxypropyl, ethoxypropyl, propoxypropyl, butoxypropyl or its isomer; the sum of carbon atom of R1 and R2 is not more than 10.The invention is characterized by the following: (1)degradable, friendly for environment; (2)compatible with other organic phase solvent; (3)micro-toxicity and fitful evaporating speed; (4)higher degreasing ability; (5)low cost; (6)wide usage.

Description

technical field [0001] The present invention relates to the application of alkyl carbonate, especially relates to the application of mixed alkyl carbonate as industrial solvent. Background technique [0002] Solvents are commonly used in industrial products or processes, the most common solvent being water. However, some substances, especially most organic substances or polymers, are not soluble in water, so a large number of organic solvents such as acetate, aromatic hydrocarbons, cyclohexanone, acetone or butanone are widely used, especially in the surface treatment industry such as Coatings, adhesives, inks and other products. However, there are many problems in the application of these solvents, such as the high cost of the product due to the high price of oil, pollution to the environment, and odor. [0003] Dialkyl carbonates, due to their variety of functional groups, have received a lot of attention, mainly for reactive applications. At present, the main varieties...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/96C07C69/04C07C69/12C07C69/22
Inventor 肖阳肖增钧孙轶群
Owner SHENZHEN FEIYANG JUNYAN TECH DEV
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