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Oct |
Completed development of polycarbonacid water soluble polymers. |
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Apr |
Registered patents for poluycarbonacids. (no 0485941) |
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: New construction of high performance concrete distribution agents based on polycarbon acids. |
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Aug |
Registered patents for polycarbon acids(no. 10-0615640) |
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: Improved high performance concrete distribution agents and its manufacturing method |
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Apr |
Registered patents for polycarbon acids (No 10 -0710832) |
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: Macromolecular alcoxy polyahrchilenglycol(meta) acrylate and its improved manufacturing |
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method |
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Feb |
Completed development of 1/2 hexanediol(final product sold) |
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