Germicidal detergent-iodine compositions including polyvinyl pyrrolidone and compatible nonionic surfactant complexors
First Claim
1. An aqueous, stable, complexor-iodine germicidal composition comprising an amount of average available iodine on a nominal basis, and from about 2 to about 4.5 parts of complexing agent per part of average available iodine, said complexing agent comprising individual amounts of polyvinyl pyrrolidone and a compatible nonionic surfactant complexor, said composition having a sufficient quantity of said complexing agent to remain homogeneous after one week'"'"'s storage at temperatures of 2°
- C. and 40°
C.
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Accused Products
Abstract
Stable, aqueous complexor-iodine germicidal use compositions and concentrates adapted for application to animal or human skin are provided which have desirable complexor:iodine ratios of from about 2-4.5. The compositions and concentrates preferably include a polyethoxylated polyoxypropylene block copolymer (Poloxamer) as the complexing agent, wherein the polyoxypropylene moiety has an average molecular weight of at least 2600 and a polyoxyethylene content of from about 30%-75% by weight, in combination with from about 0.1%-5% by weight average available iodine on a nominal basis. Use of the defined class of Poloxamers allows formulation of both high and low temperature stable compositions and concentrates. Other ingredients such as emollients, buffering agents and viscosity improvers can also form a part of the use compositions and concentrates. In another aspect of the invention, complexor-iodine compositions and concentrates include two-component complexor systems including individual amounts of polyvinyl pyrrolidone and a nonionic surfactant such as a Poloxamer.
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Citations
43 Claims
- 1. An aqueous, stable, complexor-iodine germicidal composition comprising an amount of average available iodine on a nominal basis, and from about 2 to about 4.5 parts of complexing agent per part of average available iodine, said complexing agent comprising individual amounts of polyvinyl pyrrolidone and a compatible nonionic surfactant complexor, said composition having a sufficient quantity of said complexing agent to remain homogeneous after one week'"'"'s storage at temperatures of 2°
- 23. An aqueous, stable, complexor-iodine germicidal concentrate adapted for dilution with water to form a stable use composition, said concentrate comprising from about 1% to about 5% by weight average available iodine on a nominal basis, and from about 2 to about 4.5 parts of complexing agent per part of available iodine, said complexing agent comprising individual amounts of polyvinyl pyrrolidone and a compatable nonionic surfactant complexor, said concentrate having a sufficient quantity of said complexing agent to remain homogeneous after one week'"'"'s storage at temperatures of 2°
Specification