C - Chemistry – Metallurgy – 08 – C
Patent
C - Chemistry, Metallurgy
08
C
117/208, 402/333
C08C 19/20 (2006.01) C08K 5/372 (2006.01)
Patent
CA 1225193
ABSTRACT Disclosed is a method of protecting a roof against water leaks comprising: a) providing a self-curing flexible and formable composition comprising: (i) 100 parts of an elastomer selected from the group consisting of EPDM, butyl rubber and mixtures thereof; (ii) 0.1 to 3.0 parts of a compound having the structural formula: [(CH2)nNCS]2S6, where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (ii) and (iii) provide at least 0.25 part of total available sulfur, all parts being by weight; and wherein said composition exhibits an increase in torque between the minimum value and the value obtained after 60 minutes at 100°C of at least about 15 Nm; and b) disposing said composition upon at least a portion of said roof.
424611
Gowling Lafleur Henderson Llp
Uniroyal Chemical Company Inc.
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