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POLYURETHANE SEALING MATERIAL FOR BUILDING, AND JOINT STRUCTURE AFTER SEALING
POLYURETHANE SEALING MATERIAL FOR BUILDING, AND JOINT STRUCTURE AFTER SEALING
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机译:建筑用聚氨酯密封材料及密封后的接头结构
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摘要
PROBLEM TO BE SOLVED: To provide a polyurethane sealing material for building capable of sustaining beautiful appearance by preventing curing failure of the sealing material after application in a joint structure of a building by improving the blending property of a two-component type polyurethane sealing material for building with a large viscosity difference between a base and a curing agent, and to provide a joint structure.;SOLUTION: The sealing material shows improved blending property of a base and a curing agent by adding a hollow substance having a specific average particle size to the curing agent of the two-component type polyurethane sealing material for building, composed of the base containing a urethane prepolymer and the curing agent containing a polypropylene ether polyol, to reduce the specific gravity difference between the base and the curing agent to 0.15 or less. The joint structure filled with the sealing material is also provided.;COPYRIGHT: (C)2011,JPO&INPIT
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