Low molecular weight water soluble phosphinate and phosphonate c

Details Low molecular weight water soluble phosphinate and phosphonate c Low molecular weight water soluble phosphinate and phosphonate c

1989-06-26

1991-12-31

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, C08F 238

Patent

active

050773615

ABSTRACT:
A process to efficiently utilize the chain transfer agent hypophosphorous acid or salts in the preparation of low moelcular weight polycarboxylate polymers comprising employing in process neutralization of the carboxylic acid monomers.
A low molecular weight polycarboxylate polymer containing phosphinate and phosphonate functional groups where less than 20% of the phosphorus is present in inorganic non polymeric compounds.

REFERENCES:
patent: 4621127 (1986-11-01), Denzinger et al.,
patent: 4774303 (1988-09-01), Denzinger et al.

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