Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1977-11-29
1979-08-14
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
260 312MR, 260 312R, 260 326, 260 326A, 260 336AQ, 260 336UA, 260 4233, 260 4235, 260 4237, 260 4238, 521 82, 521 91, 521 92, 521 94, 521 95, 521 97, 521140, 521150, 521153, 521905, C08J 900
Patent
active
041645120
ABSTRACT:
This invention relates to a novel elastomeric foamed material which has been found to exhibit a variety of unusual and desirable features both in its physical properties and in its process of manufacture. These foamed compositions of a lightly sulfonated elastomeric gum contain a non-volatile polar plasticizer and preferably extenders such as oil and fillers. These elastomer foams exhibit an unusual profile of physical properties including extremely rapid production, melt reprocessability of fabricated articles, a novel memory characteristic, and high temperature reshaping of foamed objects while maintaining a good foam structure. These novel foams can be manufactured with relatively uniform cell structures and with small cell sizes at foam densities from near bulk density to less than 0.1g/cc.
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Brenner Douglas
Lundberg Robert D.
Exxon Research & Engineering Co.
Foelak Morton
Nanfeldt Richard E.
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