Sustainedly vapor-releasing body having excellent shape-retainability
First Claim
1. A sustainedly vapor-releasing integrated body having excellent shape-retainability which comprises(a) a capillary tubing sealed at both ends and having flexibility made of a polymeric material,(b) a metal wire having plastic deformability to retain a deformed configuration and integrated with the capillary tubing in a side-by-side manner along the longitudinal direction thereof, and(c) a vaporizable substance filling the pore of the capillary tubing, which is capable of vaporizing through the walls of the capillary tubing and exhibiting an activity in the vapor phase.
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Accused Products
Abstract
The invention provides a novel integrated body of an elongated form capable of sustainedly releasing vapor of a vaporizable substance contained in the body into the atmosphere, such as an aromatic compound, pesticide, fungicide and a sex pheromone as a means for the control of a pest. The inventive sustainedly vapor-releasing integrated body is very advantageous in the high efficiency of shaping into desired configuration and setting or installation in the field in large numbers by virtue of the good shape-retainability as a result of the integrated structure composed of a capillary tubing of a polymeric material filled with the vaporizable substance and a metal wire with plastic deformability and a sufficiently large cross section and integrated side-by-side with the capillary tubing to retain the latter in the compulsorily deformed disposition. The inventive integrated bodies are suitable for mass production in a relatively simple process.
76 Citations
10 Claims
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1. A sustainedly vapor-releasing integrated body having excellent shape-retainability which comprises
(a) a capillary tubing sealed at both ends and having flexibility made of a polymeric material, (b) a metal wire having plastic deformability to retain a deformed configuration and integrated with the capillary tubing in a side-by-side manner along the longitudinal direction thereof, and (c) a vaporizable substance filling the pore of the capillary tubing, which is capable of vaporizing through the walls of the capillary tubing and exhibiting an activity in the vapor phase.
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10. A method for the preparation of a sustainedly vapor-releasing integrated body comprising
(a) a capillary tubing having flexibility made of a polymeric material sealed at least at one end thereof, (b) a metal wire having plastic deformability to retain a deformed configuration and integrated with the capillary tubing in a side-by-side manner along the longitudinal direction thereof, and (c) a vaporizable substance filling the pore of the capillary tubing, which is capable of vaporizing through the walls of the capillary tubing and exhibiting an activity in the vapor phase, which comprises the steps of (i) integrating side-by-side a capillary tubing and the metal wire each in a continuous length to form a continuous-length integrated body, (ii) filling the pore of the capillary tubing with the vaporizable substance, (iii) heat-sealing the capillary tubing filled with the vaporizable substance at portions with intervals to partition the pore of the capillary tubing into sections and (iv) cutting the integrated body into unit-length bodies at positions within the sealed portions or at positions closely adjacent to the sealed portions always at the same side of the sealed portion.
Specification