Polyurethane composition having easy re-entry property

Details Polyurethane composition having easy re-entry property Polyurethane composition having easy re-entry property

C - Chemistry, Metallurgy

08

L

117/195, 400/743

C08L 75/08 (2006.01) E06C 7/14 (2006.01) H01B 13/22 (2006.01)

Patent

CA 1074486

ABSTRACT This invention is directed to liquid polyurethane prepolymer compositions having free NCO groups, made from organic diisocyan- ate; aliphatic triol; and liquid organic plasticizer material compatible with the composition which has an NCO content of about 1.2-2.5%. This prepolymer composition is cured with a solution composition of urethane curing agent; liquid organic plasticizer compatible with the cured composition; and an organo- metallic catalyst, effective at ambient temperature, to a solid having resiliency; a waterproof solid (metal, plastic paper, or the like) interface; but crumbling under shearing force applied to the surface of interior of the solid, permitting easy break- away reentry into a cable splice, into an embedment, into an encapsulation, or to a surface coated with said solid. Compo- sition, package and method description is presented.

220625

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