公开(公告)号：US06858666B2

公开(公告)日：2005-02-22

申请号：US10090337

申请日：2002-03-04

申请人： Monica A. Hamer ,  William A. Hendrickson ,  Gordon R. Pryor

发明人： Monica A. Hamer ,  William A. Hendrickson ,  Gordon R. Pryor

IPC分类号： B01J13/00 ,  C08K5/01 ,  C08K91/00

CPC分类号： B01J13/0065 ,  Y10T428/2987 ,  Y10T428/2989

摘要： A method forms self-sustaining particles that comprise a hydrophobic (oleophilic) phase in particulate form, with no need for a rigid shell to encapsulate the phase, and usually with no shell present. The oleophilic phase contains a gelation agent, and preferably an organogelation agent. The particles may be stored alone or in a minor amount (e.g., less than 40% by volume) of water to assist their stability and act as a barrier against their coalescence. These water-separated compositions are not necessarily dispersions or suspensions, but may be merely particles in an aqueous storage environment. The particles have prolonged stability and can be readily, simply, and inexpensively formed. A simple method of manufacture comprises forming a solution of the ingredients (e.g., at least the oleophilic material and gelation agent) at a temperature above their gelation temperature, forming droplets or molten, or liquid or flowable particles of the solutions, and cooling the droplets to form the particulates. Cooling may be effected by exposure to ambient conditions (e.g., room temperature) when the ingredients are properly selected, or an actual cooling environment may be needed.

摘要翻译： 一种方法形成包含颗粒形式的疏水（亲油）相的自持颗粒，不需要刚性壳来包封相，通常没有壳存在。 亲油相含有凝胶剂，优选有机凝胶剂。 颗粒可以单独存储或以少量（例如，少于40体积％）的水储存，以有助于其稳定性并作为阻止其聚结的屏障。 这些水分离的组合物不一定是分散体或悬浮液，而是可以仅仅是水性储存环境中的颗粒。 颗粒具有延长的稳定性，并且可以容易地，简单地且廉价地形成。 一种简单的制造方法包括在高于其凝胶化温度的温度下形成成分溶液（例如，至少亲油性材料和凝胶化剂），形成液滴或熔融或液体或可流动的溶液颗粒，并冷却液滴 形成颗粒物。 当适当选择成分或可能需要实际的冷却环境时，可以通过暴露于环境条件（例如室温）来实现冷却。