Low organic matter release type polyurethane high resilience foam

• Main Authors: ZHANG TAO, ZHAO WEIMING, ZHANG LIGUO, ZHAO XIUWEN, ZHANG LI, LI BO
• Format: Patent
• Language: Chinese; English
• Published: 08.05.2018
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; DERIVATIVES THEREOF; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; POLYSACCHARIDES; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The invention discloses low organic matter release type polyurethane high resilience foam. The foam is characterized in that phosphate ester cyclodextrin is added in the raw materials, and the phosphate ester cyclodextrin is prepared through the following steps that 1, phosphate and urea are dissolved into water, stirring and mixing are conducted to be uniform, and the solution pH value is adjusted to be 5.0-6.0 with acid; 2, cyclodextrin is added in the mixed solution, after stirring is conducted to be uniform, suction filtration is conducted, a filter cake is dried to be with the moisture being smaller than 12% by mass, grinding is conducted, and the mixture is kept for 5 h under the condition of 150+/-5 DEG C; 3, water washing, suction filtration and drying are conducted, and the phosphate ester cyclodextrin is obtained. On the basis of the total mass of polyether polyol and polymer polyol in the polyurethane high resilience foam raw materials, and the recommended additive amount ofthe phosphate ester cycl