发明名称 |
BENEFIT DELIVERY PARTICLE, PROCESS FOR PREPARING SAID PARTICLE, COMPOSITIONS COMPRISING SAID PARTICLES AND A METHOD FOR TREATING SUBSTRATES |
摘要 |
The invention provides a benefit agent delivery particle having an average diameter of less than 50 micron comprising; at least one shell formed by a step-growth polymerisation reaction, preferably involving an isocyanate monomer, more preferably a urethane and/or a urea, interior said shell, at least one region formed by chain-growth polymerisation reaction (preferably a free-radical polymerisation) which does not involve an isocyanate, c) optionally, a benefit agent interior to said shell, and/or a deposition aid exterior to said shell. The invention further provides a process for the preparation of such particles wherein the shell is formed prior to the chain-growth polymerisation of the at least one region interior of the shell, preferably be forming the shell at a temperature at which the chain-growth reaction is inhibited. The invention further provides fully formulated products, preferably liquids and gels, which contain said benefit agent delivery particles and a method of treating substrates using said products. |
申请公布号 |
US2014378369(A1) |
申请公布日期 |
2014.12.25 |
申请号 |
US201414482545 |
申请日期 |
2014.09.10 |
申请人 |
Conopco, Inc., D/B/A UNILEVER |
发明人 |
Barnett Stuart Anthony;Jones Criag Warren;Limer Adam John;Merrington James;Winter Jeremy Nicholas |
分类号 |
A61K8/11;C11D17/00;A61Q15/00;A61Q5/02;A61Q19/10;B01J13/18;A61Q13/00 |
主分类号 |
A61K8/11 |
代理机构 |
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代理人 |
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主权项 |
1. A method of forming a particle comprising:
a) forming at least one shell of the particle by a step-growth polymerisation reaction, and b) forming an inner region of the particle by a chain-growth polymerisation reaction which does not involve an isocyanate, wherein the particle has;
(i) an average diameter of less than 50 microns;(ii) a benefit agent in the inner region of the particle; and(ii) a deposition aid exterior of the at least one shell of the particle. |
地址 |
Englewood Cliffs NJ US |