Adhesive compounds of butyl-type rubber

Details Adhesive compounds of butyl-type rubber Adhesive compounds of butyl-type rubber

2003-10-02

2008-11-18

Eashoo, Mark (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C525S332800

Reexamination Certificate

active

07452936

ABSTRACT:
The present invention relates to a substantially gel-free sealant or adhesive compound comprising butyl-type polymer without any conjugated aliphatic diene in its composition having an average molecular weight Mn of more than 20,000 g/mol and containing less than 15 wt. % of solid matter insoluble in boiling cyclohexane under reflux for 60 min., and a self-supporting shaped article comprising said compound optionally layered on or interposed between one or more supporting means as well as a tape comprising said substantially gel-free compound optionally layered on or interposed between one or more supporting means. In still another of its aspects, the present invention relates to an adhesive composition comprising said substantially gel-free compound. In still another of its aspects, the present invention relates to a sealant composition comprising said substantially gel-free compound.

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