Phosphonic acid polymers

Details Phosphonic acid polymers Phosphonic acid polymers

1997-09-24

1999-11-09

Zitomer, Fred

Compositions

Water-softening or purifying or scale-inhibiting agents

210681, 210688, 210687, 252180, 521 38, 526278, C02F 514

Patent

active

059807768

ABSTRACT:
Phosphonic acid polymers are prepared from di- or polyphosphonic acids having one or more unsaturated C.dbd.C bonds (e.g. vinylidene-1,1-diphosphonic acid), either as homopolymers or as higher polymers with at least one further compound having unsaturated C.dbd.C bonds (e.g. acrylic acid). The polymers can be used as, or in connection with, flame-retardants, corrosion inhibitors, coatings, cements and ion exchange resins.

REFERENCES:
patent: 3544509 (1970-12-01), Carroll
patent: 3576793 (1971-04-01), Carroll
patent: 5091491 (1992-02-01), Quach
patent: 5281631 (1994-01-01), Horwitz
patent: 5332531 (1994-07-01), Horwitz et al.
patent: 5449462 (1995-09-01), Horwitz
patent: 5539003 (1996-07-01), Horwitz

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