Methods and compositions for controlling biofouling using fluoro

Details Methods and compositions for controlling biofouling using fluoro Methods and compositions for controlling biofouling using fluoro

1995-12-27

1999-03-09

Bhat, Nina

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

252325, 252331, 427 21, 427 229, 427230, C23F 1100, B01J 1300, B01D 1704

Patent

active

058796231

ABSTRACT:
The present invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an effective amount of at least one fluorosurfactant to inhibit bacterial adhesion to the submergible surface. The present invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one fluorosurfactant to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the bacteria fouling organisms. The fluorosurfactant used in the method of the invention is an anionic or nonionic fluorosurfactant selected from: R.sub.f CH.sub.2 CH.sub.2 SCH.sub.2 CH.sub.2 CO.sub.2 Li, (R.sub.f CH.sub.2 CH.sub.2 O)P(O) (ONH.sub.4).sub.2, (R.sub.f CH.sub.2 CH.sub.2 O).sub.2 P(O) (ONH.sub.4), (R.sub.f CH.sub.2 CH.sub.2 O)P(O) (OH).sub.2, (R.sub.f CH.sub.2 CH.sub.2 O).sub.2 P(O) (OH), R.sub.f CH.sub.2 CH.sub.2 O (CH.sub.2 CH.sub.2 O).sub.x H, R.sub.f CH.sub.2 CH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.y H, R.sub.f CH.sub.2 CH.sub.2 SO.sub.3 H, or mixtures thereof. The group R.sub.f is F(CF.sub.2 CF.sub.2).sub.3-8, x varies from 2-20, and y varies from 2-20. The present invention also relates to a compositions containing a fluorosurfactant and useable in the above methods. The compositions comprise at least one fluorosurfactant in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.

REFERENCES:
patent: 4089804 (1978-05-01), Falk
patent: 4144185 (1979-03-01), Block
patent: 4470964 (1984-09-01), Chang
patent: 4759925 (1988-07-01), Gaffar et al.
patent: 4975109 (1990-12-01), Friedman, Jr. et al.
patent: 4992260 (1991-02-01), Caslavsky et al.
patent: 5100649 (1992-03-01), Caslavsky et al.
patent: 5256182 (1993-10-01), Friedman, Jr. et al.
C. Kent, "Biological Fouling: Basic Science and Models", pp. 207-221 (in Malo, L. F., Bott, T.R., Bernardo, C.A., (eds.), Fouling Science and Technology, NATO ASI Series, Series E, Applies Sciences: No. 145, Kluever Acad. Publishers, Dordrecht, The Netherlands, 1988).

Affiliated with

Also associated with

Rating

Methods and compositions for controlling biofouling using fluoro does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and compositions for controlling biofouling using fluoro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and compositions for controlling biofouling using fluoro will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1317640