C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/2054, 400/30
C08L 23/26 (2006.01) C08F 8/44 (2006.01) C08F 210/02 (2006.01) C08F 255/02 (2006.01)
Patent
CA 1260199
TITLE TOUGH, TRANSPARENT LEAD IONOMERS WITH GREATER THAN 100% NEUTRALIZATION ABSTRACT OF THE DISCLOSURE Ionic direct and graft copolymers of .alpha.-olefins and .alpha.,.beta.-ethylenically unsaturated carboxylic acid are provided using from above 1 to about 3 times the amount of lead salt necessary to neutralize all of the copolymerized acid. The resulting ionomers contain high levels of lead and are tough, clear and melt-processible. Accordingly, they are useful in radiation shields.
466317
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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