A one-part polysulfide sealant composition comprises a mercaptan- terminated liquid polysulfide, an oxidising agent to cure the catalyst a desiccant such as a molecular sieve, to keep the composition dry and thus prevent premature activation of the catalyst, and a cure accelerator having an ...
1432710 Epoxy-modified polysulphide polymers THIOKOL CORP 4 July 1973 46867/74 Divided out of 1413724 Heading C3R An epoxy-modified polysulphide polymer is used as an adhesive additive in liquid polysulphide based sealant compositions. It is obtained by reacting a liquid polythiol polymer, preferably ...
The products are incorporated in polysulphide sealant compositions to improve their adhesion. In examples a liquid thiol-terminated polysulphide is reacted with abietic acid and the product is incorporated in polysulphide sealants which also contain calcium carbonate, clay, titanium dioxide, chlorinated ...
the hardener and the other at least part of the polymer. They are mixed before use, giving a sealant with the excellent adhesion of acrylic polymers and the desirable elastomeric properties of polysulphides and polymercaptans.M LEFAVE GENESCHALIN EDMUNDH STRONG DOUGLASMENTOR OHIO...