 Hair coloring device |
| Devices configured to permit the application of color to hair from a solid or semi-solid hair ... |
|
| Aramid fabric for garments of improved comfort |
| OF THE INVENTION It is well known in the art that certain fabric characteristics translate into ... |
|
| Compositions and polymer fabrics treated with the same |
| I claim: 1. An article, comprising: (A) a polymer fabric treated with (B) a composition comprising ... |
|
| Firefighter garment utilizing improved high-lubricity lining material |
| OF THE PREFERRED EMBODIMENTS It is to be understood by one of ordinary skill in the art that the ... |
|
| Devices for recirculating exhaust gases in internal combustion engines |
| What is claimed as new is: 1. An exhaust gas recirculation control device for an internal ... |
|
| Silicon nitride-cordierite ceramic article, and process of manufacture thereof |
| OF THE INVENTION The new and improved ceramic compositions of the present invention comprise ... |
|
| Polymer bound fischer-tropsch catalysts |
| What we claim is: 1. A heterogeneous catalyst for Fischer-Tropsch reactions conducted in the vapor ... |
|
| Pressurized fuel cell system |
| We claim: 1. A fuel cell power plant system comprising: (a) a fuel cell stack having anode means, ... |
|
| Method of producing an end surface light emission type semiconductor device |
| An object of the present invention is to provide an improved method of producing an end surface ... |
|
|
Method for preventing scale formation and corrosion in circulating water
| Details |
Inventors: Yamaguchi, Shigeru; Fujisawa, Takashi;
Assignee: Nippon Shokubai Co., Ltd. (Osaka, JP); Kurita Water Industries, Ltd. (Tokyo, JP)
Primary Examiner: Henderson; Christopher
Assistant Examiner:
Attorney, Agent or Firm: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
An agent for water treatment comprises a water-soluble polymer obtained by polymerizing a monomer component containing a water-soluble monomer capable of dissolving in water of 50.degree. C. in the amount of 1 weight % or more, having an ethylenically unsaturated group, and exhibiting fluorescence. The water-soluble polymer has a ratio of fluorescence intensity FL.sub.1 /FL.sub.2 larger than 1, wherein FL.sub.1 is an intensity of fluorescence obtained in dissolving a water-soluble polymer in a concentration of 10 ppm in pure water, and FL.sub.2 is an intensity of fluorescence obtained in dissolving phenol in a concentration of 0.1 ppm in pure water. |
|
DETAILED DESCRIPTION In view thereof, it is an object of the present invention to provide an agent for water treatment comprising a water-soluble polymer capable of being produced by polymerization in an aqueous system and of measuring the concentration of water-soluble polymer existing in water to be treated in a simplified, speedy and accurate manner.
An agent for water treatment according to the present invention comprises a water-soluble polymer obtained by polymerizing a monomer component containing a water-soluble monomer capable of dissolving in water of 50.
degree.
C.
in the amount of 1 weight % or more, having an ethylenically unsaturated group, and exhibiting fluorescence, the water-soluble polymer having a ratio of fluorescence intensity FL.
sub.
1 /FL.
sub.
2 larger than 1, wherein FL.
sub.
1 is an intensity of fluorescence obtained in dissolving a water-soluble polymer in the concentration of 10 ppm in pure water, and FL.
sub.
2 is an intensity of fluorescence obtained in dissolving phenol in the concentration of 0.
1 ppm in pure water.
The water-soluble monomer may preferably have an oxyalkylene chain represented by --?CHR.
sup.
1 (CH.
sub.
2).
sub.
m O!.
sub.
n -- to show a favorable water solubility, wherein R.
sup.
1 is a hydrogen or a methyl group, m is an integer from 1 to 3, and n is an integer from 1 to 100.
In particular, the water-soluble monomer may preferably be represented by the following formula I: ##STR1## wherein A.
sup.
1 and A.
sup.
2 are independently a hydrogen, a methyl group or --COOX, respectively; A.
sup.
3 is a hydrogen, a methyl group, --COOX or --CH.
sub.
2 COOX; and A.
sup.
1 and A.
sup.
2 are not --COOX at the same time; A.
sup.
1 and A.
sup.
2 are independently a hydrogen or a methyl group respectively when A.
sup.
3 is --COOX or --CH.
sub.
2 COOX; X is a hydrogen, an alkaline metal, an alkaline earth metal, an ammonium group or an organic amine group; R.
sup.
2 is one of --COO--, --CH.
sub.
2 COO--, --CONH--, --CH.
sub.
2 CONH--, --NH--, --(CH.
sub.
2).
sub.
k NH--, wherein k is an integer from 1 to 4, and --(CH
|
|
Manufacturing Materials 
