Chemical formulations and methods utilizing NPB(n-propyl bromide) as non-aqueous carrier mediums to apply fluorocarbons and other organic chemicals to substrates
a technology of npropyl bromide and chemical formulation, which is applied in the direction of detergent compounding agent, final product manufacture, physical treatment, etc., can solve the problems of high temperature and expensive drying system to evaporate water from aqueous carriers, and achieve water and oil repellency, improve the effect of fluorine composition, and reduce the amount of compound added
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example 1
[0024] A solution of 98% NPB and 2% Perfluoroalkyl polyacrylate were mixed and applied to the foam generator which imparts the solution to a high speed mixer that generates the solution into foam. The foam was then dispensed to the substrates listed in below via an applicator at 30%-wet pickup. The substrates were then dried at 170 deg C. for 1-minute dwell time with the following results:
1 Initial After 10 Home Laundries Example 1 Oil IPA Spray Fluoride Oil IPA Spray Fluoride Cotton 5 85 100 2160 ppm 2 60 70 1600 ppm Polyester 6 90 100 1170 ppm 5 90 90 980 ppm Pes / Rayon 6 80 100 5 60 70
example 2
[0025] A solution of 99.6% NPB and 0.4% Perfluoroalkyl polyacrylate were mixed and applied to the substrates listed below via a pad applicator at 3.5 bars pressure. The solution was applied at noted wet pickup. Again, the substrates were dried at 170 deg C. with a 1-minute dwell.
2 Initial After 10 Home Laundries Example 2 Oil IPA Spray Fluoride Oil IPA Spray Fluoride Cotton 6 100 100 2480 ppm 3 90 80 2200 ppm Polyester 8 90 100 1270 ppm 6 90 90 1100 ppm Pes / Rayon 8 80 100 6 80 80
example 3
[0026] A solution of 99.6% NPB and 2% Perfluoroalkyl polyacrylate were mixed and applied to the substrates listed below via a Spray at 1.5 bars pressure. The solution was applied at noted wet pickup. Again, the substrates were dried at 170 deg C. with a 1-minute dwell.
3 Initial After 10 Home Laundries Example 3 Oil IPA Spray Fluoride Oil IPA Spray Fluoride Cotton 6 85 100 2260 ppm 2 60 70 1690 ppm Polyester 6 90 100 1170 ppm 5 90 90 1080 ppm Pes / Rayon 6 80 100 5 60 70
Use of the Compositions Not According to the Invention
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