Claims
- 1. A process for preparing a water soluble adduct polymer comprising:
- a. reacting a hydroxymethylphosphorus compound selected from the group consisting of trihydroxymethylphosphene, tetrakis(hydroxymethyl)phosphonium hydroxide and tetrakis(hydroxymethyl)phosphonium chloride with a nitrogenous compound selected from the group consisting of ammonia, hexamethylenetetraamine and ethylenediamine to form an insoluble polymeric precipitate, and
- b. dissolving the precipitate from (a) in the presence of formaldehyde and a hydroxymethylphosphonium compound selected from the group consisting of tetrakis(hydroxymethyl)phosphonium acetate, tetrakis(hydroxymethyl)phosphonium oxalate, and tetrakis(hydroxymethyl)phosphonium chloride with a mole ratio of 1:4 to 4:1 of formaldehyde to phosphorus contained in the precipitate and a 1:10 to 2:1 ratio of phosphonium compound to phosphorus contained in the precipitate.
- 2. The product prepared by the process of claim 1.
Parent Case Info
This is a division of application Ser. No. 499,806, filed Aug. 22, 1974 now U.S. Pat. No. 3,961,110.
US Referenced Citations (14)
Non-Patent Literature Citations (1)
Entry |
Chem. Abs. 60:5651f; P12230a; 67:P74150d. |
Divisions (1)
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Number |
Date |
Country |
Parent |
499806 |
Aug 1974 |
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