Abstract: Polymeric cyclopentadiene derivatives, method for preparing polymeric cyclopentadiene derivatives, and use of polymeric cyclopentadiene derivatives in curable binder compositions.

Abstract: Cyclopentadiene derivatives, method for preparing cyclopentadiene derivatives, and use of cyclopentadiene derivatives in curable binder compositions.

Abstract: A process for casting metal which includes pouring the metal into or around a molded article obtained from a molding composition wherein the binder includes certain fulvenes and/or prepolymers thereof, and a metal salt catalyst. The metal is cooled, solidified, and separated from the molded article.

Abstract: Cyclopentadiene derivatives, method for preparing cyclopentadiene derivatives, and use of cyclopentadiene derivatives in curable binder compositions.

Abstract: A binder composition which contains certain fulvenes and/or prepolymers thereof, and a metal salt catalyst.

Abstract: A thermosetting resinous composition characterized in constituting at least two oligomeric polyester segments terminally joined through a polyurethane residue and having end groups containing polymerizable unsaturation. Further disclosed are the thermoset products obtained by the addition polymerization of the aforesaid compositions in the presence or absence of a copolymerizable monomeric crosslinking agent. The resultant thermoset products are particularly useful in preparing molded articles.

Abstract: Binder Compositions comprising a solution of furan foundry binders in an alkylated aromatic hydrocarbon solvent result in a more cost efficient binder. The cost efficiency is achieved without significant loss of physical properties of the foundry cores and molds which are formed using the binder. In instances the binder compositions of this invention exhibit improved physical properties.

Abstract: A binder composition which contains certain fulvenes and/or prepolymers thereof, and a metal salt catalyst.

Abstract: Foundry cores and molds for casting metals are prepared by forming a binder comprising a polyol, an isocyanato urethane polymer and a urethane catalyst. The foundry cores and molds of this invention are formed by processes known in the industry as the "cold box" process and the no-bake process. The binder is especially useful for casting non-ferrous metals, for example, the casting of aluminum, magnesium and other lightweight metals. The cores and molds produced for casting aluminum and other lightweight metals exhibit excellent shakeout while retaining other desirable core and mold properties.

Abstract: Photosensitive homopolymers and substantially non-crosslinked copolymers containing the recurring unit: ##EQU1## R.sub.1 may be substituted or unsubstituted alkylene, aralkylene, alkoxyalkylene or aryloxyalkylene. R.sub.2 is a substituted or unsubstituted aryl group or heterocyclic group having aromatic character. R.sub.3, R.sub.4, and R.sub.5 are hydrogen, halogen or lower alkyl. R.sub.6 and R.sub.7 may be hydrogen, halogen, nitro, lower alkyl, phenyl, substituted phenyl, phenoxy and lower alkoxy. Lithographic plates bearing these photosensitive polymers can be stored without deterioration for extended periods prior to exposure, and produce highly abrasion resistant plates on being exposed. The photosensitive polymers of the invention are preferably produced by homopolymerization of novel monomers having the general formula ##EQU2## where R.sub.1 .sub.' is alkylene, haloalkylene, alkoxyalkylene, aminoalkylene, cycloalkylene, aralkylene, cycloalkylalkylene, cyanoalkylene, and aryloxyalkylene, and R.sub.2, R.