Sponge rubber rug underlay having improved load bearing capacity

Details Sponge rubber rug underlay having improved load bearing capacity Sponge rubber rug underlay having improved load bearing capacity

1974-02-14

1977-11-29

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 336AQ, 260759, 260890, C08J 910, C08K 501

Patent

active

040605027

ABSTRACT:
A composition is provided for use in flexible sponge rubber rug underlay of a type including about 100 parts of natural or synthetic rubber, from about 100 to about 300 parts of a reinforcing filler, and from about 50 to about 200 parts of oil. The improvement in the composition comprises from about 10 to about 40 parts of the natural or synthetic rubber being replaced by an approximately equal number of parts of a finely divided vinyl chloride polymer or copolymer. The present invention may also provide a sponge rubber of lower cost for the same apparent density.

REFERENCES:
patent: 2713040 (1955-07-01), Brass et al.
patent: 3689355 (1972-09-01), Hornbaker et al.
Condensed Chem. Dictionary, (5th Ed.), (Reinhold), (N.Y.), (1956), p. 885.
Sprague-Vanderbilt Rubber Handbook, (11th Ed.), (R. T. Vanderbilt), (N.Y.), (1968), pp. 520-523.

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