Phosphazene article and process for producing the same

Details Phosphazene article and process for producing the same Phosphazene article and process for producing the same

1989-10-12

1990-09-25

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528399, 525534, 525538, C08G 7902

Patent

active

049594427

ABSTRACT:
A shaped polyphosphazene article having a modified surface portion thereof and exhibiting a desired property and/or performance comprises a polyphosphazene polymer having at least 50 molar % or more of repeating units of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 in the first and second side chains --OR.sup.1 and --OR.sup.2 respectively represent, independently from each other, an aliphatic, cycloaliphatic or aromatic radical, and having at least a portion of a surface portion thereof in which at least 5 molar % of the first and second side chains are converted to one or more types of third side chains --OR.sup.3 wherein R.sup.3 represents an aliphatic, cycloaliphatic or aromatic radical and which are different from --OR.sup.1 and --OR.sup.2.

REFERENCES:
patent: 4292418 (1981-09-01), Joung
patent: 4311736 (1982-01-01), Leong
"Macromolecules", vol. 5, No. 2, pp. 231-232 (1972).

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