Co-cured compositions of amine-terminated liquid polymers and vi

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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260 312N, 260 318E, 260 318Z, 260 318DR, 260 47VA, 260 795C, 260268PL, 260290V, 26029363, 260836, 260837R, 260878R, 260879, 260880R, 526 23, 526 49, 526 50, 526265, 526272, 526338, C08F 2608, C08F12606, C08F 2600, C08L 6300

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040586570

ABSTRACT:
Co-cured compositions are prepared readily by mixing (1) 100 parts by weight of at least one amine-terminated liquid polymer having a carbon-carbon backbone and (2) from about 80 to about 120 parts by weight of at least one vinylidene-terminated polymer having a carbon-carbon, polyether or polysulfide polymeric backbone. The compositions undergo a soft cure readily at room temperature without addition of catalysts or crosslinking agents. The compositions are useful as caulks, sealants and potting compounds.

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