2-Methylene propane phosphonic acid esters and their copolymer w

Details 2-Methylene propane phosphonic acid esters and their copolymer w 2-Methylene propane phosphonic acid esters and their copolymer w

1974-08-20

1976-01-27

Schofer, Joseph I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 855R, C08F21000, C08F22042, C08F22070, C08F22002

Patent

active

039351742

ABSTRACT:
2-METHYLENE PROPANE PHOSPHONIC ACID ESTERS AND THEIR COPOLYMERS WITH ACRYLONITRILE ARE THE OBJECTS OF THE INVENTION. The fibers produced from the copolymers are flame-resistant and show increased thermal stability, improved affinity for dyes and fastness to light. The copolymers of acrylonitrile and 2-methylene propane phosphonic acid esters - in addition to other comonomers - are produced by polymerizing the monomers in solution or - preferably - in an aqueous suspension or emulsion. Formed articles, such as fibres from said copolymers can be prepared by spinning a solution of the copolymer in an organic solvent p.i. in dimethyl formamide.

REFERENCES:
patent: 2636027 (1953-07-01), Coover et al.
patent: 3062792 (1962-11-01), McConnell et al.
patent: 3312674 (1967-04-01), Welch

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