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BLOCKED POLYISOCYANATES CURING FREE FROM ELIMINATION PRODUCTS FOR DUALCURE SYSTEMS.
BLOCKED POLYISOCYANATES CURING FREE FROM ELIMINATION PRODUCTS FOR DUALCURE SYSTEMS.
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机译:不含丁二醛体系消除产物的嵌段聚异氰酸酯。
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摘要
The invention provides innovative blocked polyisocyanates whose crosslinking is initiated thermally and photochemically. The polyisocyanates comprise at least one thermally reversibly blocked NCO group whose blocking agent contains at least one group which on exposure to actinic radiation reacts, with polymerization, with ethylenically unsaturated compounds. A process for preparing the polyisocyanates, and their use in binders, is also provided.
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