Claims
- 1. A water soluble preservative antimicrobial composition for addition to commercial use products at predetermined use levels to provide synergistic biocidal activity against a wide range of fungi and gram-negative and gram-positive bacteria, comprising an active liquid blend of
- (1) an admixture of
- (a) 1,3-dimethylol-5,5-dimethyl hydantoin; and
- (b) 3-iodo-2-propynylbutyl carbamate, in a weight ratio of (a):(b) of 100:1 to 2000:1, and
- (2) propylene glycol or 1,3-butylene glycol.
- 2. A water soluble preservative antimicrobial composition according to claim 1 wherein said weight ratio is 200:1 to 500:1.
- 3. A water soluble preservative antimicrobial composition according to claim 1 which comprises about 20 to 55 weight percent of (1) and 45 to 80 weight percent of (2).
- 4. A composition according to claim 3 which comprises about 40 weight percent of (1) and about 60 weight percent of (2).
- 5. A commercial use product which is protected for an extended period of time against contamination by a wide range of fungi and gram-negative and gram-positive bacteria which includes 0.1 to 5% by weight of the composition of claim 1.
- 6. A product according to claim 5 which includes about 0.5 to 1% by weight of the composition of claim 1.
- 7. A commercial use product according to claim 5 which is a personal care, household or industrial composition.
- 8. A commercial use product according to claim 5 which is a shampoo.
CROSS-REFERENCE TO RELATED PATENT APPLICATION
This is a division of application Ser. No. 08/413,742, filed Mar. 30, 1995, now U.S. Pat. No. 5,552,425, which is a continuation-in-part of Ser. No. 08/234,089, filed Apr. 28, 1994 now U.S. Pat. No. 5,428,050.
US Referenced Citations (3)
Divisions (1)
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Number |
Date |
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Parent |
413742 |
Mar 1995 |
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Continuation in Parts (1)
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234089 |
Apr 1994 |
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