C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
154/139, 402/149
C08K 7/18 (2006.01) A43B 13/02 (2006.01) C08G 18/08 (2006.01) C08G 18/66 (2006.01) C08K 7/26 (2006.01)
Patent
CA 1268286
ABSTRACT OF THE DISCLOSURE Energy absorbing, polyurethane elastomer compositions having a density of from 0.4 to 1 gm/cc, a compression set of less than 5% and a recovery time of from 10 to 600 milliseconds, preferably from 100 to 200 milliseconds are provided herein. Such compositions are formed by reaction of a urethane-forming component comprising a compound containing at least four urethane-forming reactive sites and capable of forming stable complexes through unsatisfied urethane-forming reactive sites, an elasticising polyol selected from the group consisting of diols and triols, and a diisocyanate in less than stoichiometric amounts. These compositions preferably contain a light-weight filler.
450269
Borden Ladner Gervais Llp
British Technology Group Limited
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