Claims
- 1. A sustained release dispenser comprising a plastic container, which accommodates a liquid and volatile ingredient therein, wherein the plastic container essentially consists of an outer layer permeable to the liquid and volatile ingredient and an inner layer having liquid-absorbing pores capable of communicating with one another for maintaining the absorption of the volatile ingredient at a constant wetting level, and the inner layer and the outer layer are produced from the same kind of plastics.
- 2. The sustained release dispenser as set forth in claim 1 wherein the outer and inner layers are formed from at least one compound selected from the group consisting of polyolefins, ethylene-vinyl acetate copolymers, ethylene-acrylic acid ester copolymers and ethylene-methacrylic acid ester copolymers.
- 3. The sustained release dispenser as set forth in claim 1 wherein the volatile ingredient is a sex pheromone.
Priority Claims (2)
Number |
Date |
Country |
Kind |
6-109643 |
May 1994 |
JPX |
|
7-177538 |
Jul 1995 |
JPX |
|
Parent Case Info
This is a continuation-in-part application of application Ser. No. 08/421,323 filed on Apr. 13,1995 now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0273197 |
Jul 1988 |
EPX |
0 342 126 |
Nov 1989 |
EPX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
421323 |
Apr 1995 |
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