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US 2018/0194921 A1Published application
Vinyl acetate-ethylene copolymer emulsion and method for producing same
AssigneeWacker Chemie AG
InventorsYong Hae Choi, Jong Bok Kim
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Abstract
The present invention relates to a method for producing a vinyl acetate-ethylene copolymer emulsion which has high preparation stability and compatibility between raw materials, has a small amount of residual monomers, and is capable of improving the durability of a preservative, and product stability; and a vinyl acetate-ethylene copolymer emulsion which has excellent durability of preservative and product stability.
Claims13
A method for producing a vinyl acetate-ethylene copolymer emulsion, the method comprising:
- (S100) forming a first mixed solution containing a vinyl acetate-ethylene copolymer, comprising polymerizing vinyl acetate and ethylene;
- (S200) forming a second mixed solution by adding potassium iodate (KIO3) to the first mixed solution, wherein potassium iodate (KIO3) is added after 30 minutes to 2 hours from the formation of the first mixed solution in step S100;
- and
- (S300) adding an isothiazolone-based compound to the second mixed solution.
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(canceled)
A vinyl acetate-ethylene copolymer emulsion comprising:
- a vinyl acetate-ethylene copolymer;
- an isothiazolone-based compound;
- and
- potassium iodate (KIO3).
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Dependencies are inferred from the claim text.