Abstract: This invention is directed to fast curing polymer compositions, These compositions comprise a blend of (1) a polymer having pendent activated acetylenic groups and ammonia or a comonomer having at least two functional groups which are reactive with the activated acetylenic groups of the polymer, or (2) a blend of a monomer having at least two activated acetylenic groups and ammonia and/or a comonomer having at least two functional groups which are reactive with the activated acetylenic groups of the monomer.

Abstract: This invention is directed to a fast curing polymer composition which does not require baking or thermosetting to provide a cross-linked coating binder. The composition comprises a polymer which is a homopolymer or copolymer of alpha, beta unsaturated monomers having pendent acetylenic groups which cross-link upon air drying to provide a coating binder.

Abstract: This invention relates to a solvent process for the conversion of aromatic propargyl ethers into chromenes. The process can be catalyzed with copper or zinc salts. The preferred salt is cuprous chloride. The most preferred solvent is a dichlorobenzene. The invention also relates to chromene products formed using the process and to the polymerization of that chromene product and its polymerized product, the latter product having substantially improved flexural modulus and flexural strength properties. The polymerized product is also moisture insensitive.