Patent classifications
C
CHEMISTRY; METALLURGY
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C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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18/00
Polymeric products of isocyanates or isothiocyanates
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C08G18/06
with compounds having active hydrogen
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C08G18/70
characterised by the isocyanates or isothiocyanates used
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C08G18/72
Polyisocyanates or polyisothiocyanates
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C08G18/8003
masked with compounds having at least two groups containing active hydrogen
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C08G18/8045

Blocked polyisocyanate composition and use thereof
11661473 · 2023-05-30 · ·

A blocked polyisocyanate composition containing a blocked polyisocyanate obtained from a polyisocyanate and at least one blocking agent, wherein the blocking agent contains a compound represented by general formula (I) shown below, and the amount of methane tetracarbonyl structures represented by general formula (II) shown below, relative to the total molar amount within the blocked polyisocyanate of bonded structures in which the compound represented by general formula (I) is bonded to the polyisocyanate, is at least 0.5 mol % but not more than 10 mol %.

BLOCKED POLYISOCYANATE COMPOSITION AND USE THEREOF
20200308338 · 2020-10-01 · ·

A blocked polyisocyanate composition containing a blocked polyisocyanate obtained from a polyisocyanate and at least one blocking agent, wherein the blocking agent contains a compound represented by general formula (I) shown below, and the amount of methane tetracarbonyl structures represented by general formula (II) shown below, relative to the total molar amount within the blocked polyisocyanate of bonded structures in which the compound represented by general formula (I) is bonded to the polyisocyanate, is at least 0.5 mol % but not more than 10 mol %.