发明名称 |
Co-extrustion of multi-component insecticidal pet collars |
摘要 |
Co-extruded insecticidal pet collars contain one or more active insecticidal components in a desired relationship to the skin of the animal. The outside layer (away from the skin) contains carbamate, organo-phosphate chlorinated hydrocarbon or other insecticide that is irritating to the skin, or a cholinesterase inhibitor. The inside layer acts as a barrier to the insecticide. The layers of a multi-layered collar which is prepared by extrusion may also contain different insecticidal systems. A co-extruded collar is prepared by preparing two blends which have varying concentrations of active and/or inert ingredients, depending on the end product which is desired. Each of the blends is fed into an extruder wherein the polyvinyl chloride is fused. The melt blend from extruder B is then transferred to the die of extruder A where it becomes an integral part of the extruded strip from extruder A.
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申请公布号 |
US4803956(A) |
申请公布日期 |
1989.02.14 |
申请号 |
US19840661101 |
申请日期 |
1984.10.15 |
申请人 |
A. H. ROBINS COMPANY, INCORPORATED |
发明人 |
CORRIGAN, EUGENE J.;ATKINSON, JR., EARL R. |
分类号 |
A01K27/00;A01M1/20;A01N25/34;B29C47/00;B29K105/00;B29L31/00;B32B27/18;(IPC1-7):A01K27/00 |
主分类号 |
A01K27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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