C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 53/00 (2006.01) C08K 5/00 (2006.01) C08L 53/02 (2006.01)
Patent
CA 2065730
Gels of hard-elastomer-nard block copolymers with at least 300 parts of extender liquid per 100 pans of the copolymer contain at least 50 parts (per 100 parts of copolymer) of a stabilising additive which resists migration of PVC plasticisers into the gel when in contact with a plasticised PVC article. Styrene-ethylene-butylene)- styrene triblock copolymers with organic phos- phate stabilisers are preferred, these stabilisers,tending to raise the gel softening temperature.
Hudson John M.
Sutherland Alistair A. P.
Fetherstonhaugh & Co.
Raychem Limited
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