Telomers

Details Telomers Telomers

1994-09-16

1997-02-18

Nagumo, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526271, 526287, 5263171, 5263185, 526273, 526277, 526278, 5263031, 526304, 526193, 525340, C08F 3002

Patent

active

056042914

ABSTRACT:
Phosphonic telomer intermediates for preparing the telomers of U.S. Pat. No. 5,376,731 may be produced by an aqueous process comprising (a) reacting hypophosphorous acid with a carbonyl compound which is preferably an aldehyde, a ketone or an imine, and (b) reacting the product of (a) with an olefinic reactant or reactants in the presence of a suitable initiator especially a free radical initiator. The telomer intermediates are themselves useful as scale inhibitors in aqueous systems.

REFERENCES:
patent: 3539654 (1970-11-01), Pautrat et al.
patent: 4046707 (1977-09-01), Smith et al.
patent: 4681686 (1987-07-01), Richardson et al.
patent: 5077361 (1991-12-01), Hughes et al.
patent: 5294687 (1994-03-01), Blankenship et al.
British Search Report Oct. 2, 1991.
Russian Technical Journal Izv. Akad. Nauk. USSR 1989, 1390.
Partial translation of above Russian article.

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