Method of preparing block polyurethane microcapsule composite finishing agent
Title：
Method of preparing block polyurethane microcapsule composite finishing agent
Application Number：
 200710075645
Application Date：
 2007/08/08
Announcement Date：
 2008/01/23
Pub. Date：
Publication Number：
 101109151
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 94[China|shenzhen]
IPC：
 D06M 15/564D06M 23/12
Applicant(s)：
 Research Institute Of Tsinghua University in Shenzhen
Inventor(s)：
 Zhang Huiru, Li Dongshuang, Lu Youjun, Li Rongguang, Yang Jian
Key Words：
 preparing method, polyurethane, microcapsule, composite finishing agent
Abstract：
 A preparing method for a compound finishing agent for micro capsule of blocking polyurethane is provided, which comprises the following procedures: a) preparing the pre-polymer of the blocking polyurethane; adjusting the content of hard blocks with the composition and content of fixing soft blocks not changed, so that the inversible phase composes rich soft blocks and short hard blocks, and fixing phase composes rich hard blocks; b) adding the pre-polymer of the blocking polyurethane and the phase-transformation material in certain proportion into some water solution containing emulsifier to form a water-wrapped-oil emulsion system; when the emulsification goes to such stage as the diameter of micro capsule meets requirement, some chain extender and cross-linking agent are added, they are mixed for certain time under thermostatic condition, now emulsion of compound finishing agent for micro capsule of blocking polyurethane taking blocking polyurethane as wall of the micro capsule and phase-transformation material as the core of the micro capsule is obtained. The invention uses the same chemical substrate-polyurethane, so the requirement from the compound finishing agent on assistant, the formula of the finishing liquid and the finishing process are basically equivalent, thereby the synergy between air permeability, moisture permeability and temperature adjusting can be achieved well.
Claim：
Priority：
PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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