Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1994-10-04
1997-06-03
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526271, 526287, 5263171, 252180, C08F23600, C08F22802, C08F22004, C08F22206, C02F 510
Patent
active
056355750
ABSTRACT:
A polymer having the function of water treatment and labeled with a fluorescent substance having a allyl group is disclosed. A process for producing the polymer for water treatment having the function of water treatment and labeled with a fluorescent substance having allyl group comprises copolymerizing a fluorescent substance having allyl group obtained by introducing allyl group into a fluorescent substance using a Grignard reagent with a monomer having a polymerizable double bond. The polymer having the function of water treatment and labeled with a fluorescent substance having an allyl group can be obtained under atmospheric pressure. Concentration of the polymer for water treatment can be measured conveniently, accurately and quickly. Therefore, concentration of the polymer in water can be easily adjusted to the optimum value. Degradation of the labeled polymer by chlorine can be prevented when an agent for water treatment containing the labeled polymer and a hydantoin compound is used.
REFERENCES:
patent: 4707523 (1987-11-01), Chang et al.
patent: 4813973 (1989-03-01), Winnik et al.
Patent Abstracts of Japan, vol. 018 No. 061 (C-1160), 2 Feb. 1994 of JP-A-05 277491 (Hakutou KK) 26 Oct. 1993.
Database WPI, Section CH, Week 9347, Derwent Publications Ltd., London, GB, Class D15, AN 93-373793.
Kira Mayumi
Kobayashi Norimasa
Cheng Wu C.
Kurita Water Industries Ltd.
Schofer Joseph L.
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