C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/1700, 400/18
C08L 57/00 (2006.01) B29C 61/00 (2006.01) B29C 61/06 (2006.01) C08L 87/00 (2006.01) C09J 7/00 (2006.01) C09J 7/02 (2006.01) C09J 111/00 (2006.01) C09J 121/00 (2006.01) C09J 171/03 (2006.01)
Patent
CA 1195793
ABSTRACT A substantially solvent-free adhesive composition consists essentially of an elastomer and tackifier, 3 metal oxide and, optionally, a plasticizer. The elastomer is selected from the group consisting of polar elastomers and unsaturated elastomers which have at least 5 mole percent unsaturation, said elastomer being a non-crystalline elastomer or an elastomer which has a slow rate of crystal- lization such that after a time period of at least 100 hours has elapsed following subjecting the elastomer to a temperature of 70°C for 30 minutes, the elastomer has a room temperature Shore A hardness of less than 60. The adhesive compositions can be formed into a shaped article, such as of a tape, film, sheet or tubular sleeve, if desired. The compositions have high adhesive strength for bonding together a variety of substrates. The adhesive is particularly useful with a dimensionally recoverable article, such as a shrinkable sleeve, to bond the recovered sleeve to a substrate such as an electric cable.
418394
Fetherstonhaugh & Co.
Raychem Corporation
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