초록 ▼

Tubules which contain an active agent in their lumen and compositions containing such microtubules are effective for providing a slow, controlled release of the active agent. Such microtubules are useful in the production of coating compositions for the protection of surfaces coming into contact wit

Tubules which contain an active agent in their lumen and compositions containing such microtubules are effective for providing a slow, controlled release of the active agent. Such microtubules are useful in the production of coating compositions for the protection of surfaces coming into contact with water, adhesive resins for the production of laminated wood products, and devices for dispensing pesticides.

대표청구항 ▼

[ What is claimed as new and desired to be secured by Letters Patent of the United States is:] [1.]1. A composition for effecting the controlled release of an active agent to an environment, comprising a tubule containing a solution or dispersion of an active agent in a carrier in the lumen thereof,

[ What is claimed as new and desired to be secured by Letters Patent of the United States is:] [1.]1. A composition for effecting the controlled release of an active agent to an environment, comprising a tubule containing a solution or dispersion of an active agent in a carrier in the lumen thereof, wherein said tubule has an inner diameter of from 0.1 to 1 .mu.m and a lenath of 1 .mu.m to 1 mm.