发明名称 |
METHOD OF USING POLYUREA NANOPARTICLES AS MODIFIERS OF OPERATIONAL CHARACTERISTICS IN POLYURETHANE MATERIALS |
摘要 |
FIELD: nanotechnology.SUBSTANCE: present invention relates to method of producing nano-sized polyurea particles or dispersions of polyurea particles. Said particles are characterized by values of equivalent diameter of 50-700 nm, narrow particle size distribution in equivalent diameter ratio of urea links and urethane bonds in said particles of 90:10 and glass transition temperature (Tg) of > 100 °C. Method involves step of reaction of reactive with respect to isocyanates monoamine component with polyisocyanate component to form urea-modified polyisocyanate component and then stage of addition of urea-modified polyisocyanate component to diamine component to make polyurea particles.EFFECT: these particles and their dispersion are used to increase hardness during compression, ultimate tensile strength and ultimate tensile strength during tension of flexible polyurethane foam.11 cl, 1 dwg, 2 tbl, 6 ex |
申请公布号 |
RU2604739(C2) |
申请公布日期 |
2016.12.10 |
申请号 |
RU20150105187 |
申请日期 |
2013.06.28 |
申请人 |
KHANTSMEN INTERNESHNL LLS |
发明人 |
VAUTTERS Stiv Andre;LINDSEJ Kristofer Ian |
分类号 |
C08G18/08;C08G18/32;C08G18/48;C08G101/00;C08L75/00 |
主分类号 |
C08G18/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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