Process for preparing chloro-ether resin

A technology of chloroether resin and formulation, which is applied in the field of polymerization of polymer materials, can solve problems such as difficulty in maintaining the quality of chlorinated rubber, achieve excellent adhesion, easy control of reaction conditions, and good resin quality

Inactive Publication Date: 2007-10-03
刘琳
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although chlorinated rubber has a certain application range and good application effect, a large amount of toughening agent is used in its coating. Under the outdoor sunlight, with the migration of the toughening agent, the coating gradually powders and falls off; more The important thing is that the production process of chlorinated rubber still needs to use a large amount of carbon tetrachloride solvent. According to the agreement of international conventions and the environmental responsibility that should be assumed, the production of chlorinated rubber by carbon tetrachloride must be banned in 2004. my country has already Prohibit the import of carbon tetrachloride and limit the production of carbon tetrachloride
It is still difficult to maintain the quality of chlorinated rubber produced by the original carbon tetrachloride method in the production of chlorinated rubber by other non-carbon tetrachloride process lines. the necessity of
[0008] The existing chloroether resin is copolymerized with vinyl chloride (VCM) and vinyl isobutyl ether (VBM), but there is still room for improvement in the formula and process conditions, so as to obtain resin with better quality and yield

Method used

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  • Process for preparing chloro-ether resin

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Experimental program
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Embodiment Construction

[0038] 1. Vinyl chloride (VCM) 70g, vinyl isobutyl ether (VBM) 30g, deionized water 200g, hydroxypropyl cellulose 0.25g, polyvinyl alcohol 0.25g, initiator 0.5g, temperature 70°C, reaction time 10 hours.

[0039] Obtain the resin of viscosity 25Mpa, s, the measurement of viscosity: resin concentration is the toluene solution of 20%, the viscosity at 23 ℃, records with rotational viscometer.

[0040] 2. Vinyl chloride (VCM) 80g, vinyl isobutyl ether (VBM) 20g, deionized water 200g, hydroxypropyl cellulose 0.1g, polyvinyl alcohol 0.1g, initiator 0.5g, octyl alcohol polyoxyethylene ether 0.2g, 0.1g sodium lauryl alcohol sulfate, 0.1g Span-20, 0.2g cetyl alcohol, polymerization temperature 65°C, reaction time 6-8 hours.

[0041] Obtain the resin of viscosity 45Mpa, s (method is the same as above)

[0042] 3. Vinyl chloride (VCM) 75g, vinyl isobutyl ether (VBM) 25g, deionized water 250g, maleic anhydride 2.5g, hydroxypropyl cellulose 0.13g, polyvinyl alcohol 0.15g, initiator 1.0g...

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Abstract

A chloroether resin is prepared from vinyl chloride (VCM), vinyl isobutylether (VBM) and unsaturated organic acid (acrylic acid or maleic acid anhydride) through adding them along with disperser, emulsifier and trigger to water, and polymerizing at 40-80 deg.C for 3-10 hr while stirring. Its advantages are high yield and high quality of resin.

Description

1. Technical field [0001] The invention relates to a polymerization process of polymer materials, in particular to a method for preparing chloroether resin by copolymerizing vinyl chloride and vinyl isobutyl ether. 2. Background technology [0002] Chlorine ether resin (MP resin) is a copolymer prepared by copolymerization of vinyl chloride and vinyl isobutyl ether. At present, only Germany, the United States, and Japan are produced in a few countries, and it is still blank in China. Chlorother resin (MP resin) is an excellent base material for anti-corrosion coatings. Compared with chlorinated rubber, chlorinated polyethylene, chlorosulfonated polyethylene and other anti-corrosion coating resins, chloroether resin (MP resin) has unique Excellent performance. The anti-corrosion coating made of chloroether resin (MP resin) is not easy to be oxidized and degraded by the atmosphere because it does not contain reactive double bonds in the molecule, and it is not easy to yellow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F214/06C08F220/04C08F2/24
Inventor 刘琳张志德
Owner 刘琳
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