Abstract: A window sealant formulation comprising a partially saturated alkanethiol adduct of polybutadiene or polyisoprene is disclosed. The window sealant exhibits good thermal stability, low water vapor transmission rate, non-sulfurous odor, low volatility, and acceptable elongation.

Abstract: Formulations comprising two or more reactants in which each reactant is blocked to render it unreactive at temperatures below 100.degree. C. are disclosed. These formulations have utility in the fields of one package insulating glass sealant compositions, high solids coatings, and reaction injection molding.

Abstract: Fully and partially aryl amine terminated polysulfide polymers and processes for their preparation and use are disclosed. The fully aryl amine terminated products are curable with isocyanates to high molecular weight polymers and are thus useful in molding and casting as well as in sealants. The partially aryl amine terminated polymers may be further reacted with polyisocyanates to form thiol terminated polysulfide polymers containing urea chain segments. These compounds are curable in the fashion of standard polysulfide polymers to form firmer polymers. The partially aryl amine terminated polymers may be also chain extended with isocyanate terminated urethane prepolymers. These block copolymers may be cured by standard SH terminated polysulfide polymer cure methods to prepare sealants of exceptional resiliency and weather resistance.

Abstract: Bisdithiocarbamate esters of di-lower alkyl formals and related compounds are disclosed. The final products are useful as rubber cure accelerators, biocides, antioxidants, corrosion inhibitors, and sulfur bearing oil additives.

Abstract: Fully and partially aryl amine terminated polysulfide polymers and processes for their preparation and use are disclosed. The fully aryl amine terminated products are curable with isocyanates to high molecular weight polymers and are thus useful in molding and casting as well as in sealants. The partially aryl amine terminated polymers may be further reacted with polyisocyanates to form thiol terminated polysulfide polymers containing urea chain segments. These compounds are curable in the fashion of standard polysulfide polymers to form firmer polymers. The partially aryl amine terminated polymers may be also chain extended with isocyanate terminated urethane prepolymers. These block copolymers may be cured by standard SH terminated polysulfide polymer cure methods to prepare sealants of exceptional resiliency and weather resistance.

Abstract: Inclusion of an effective amount of substantially anhydrous acetic acid in a zinc oxide cured liquid polysulfide polymer based composition results in a cured composition which is suitable for extrusion under heat and pressure and which on cooling reverts to a rubbery solid with essentially unchanged physical properties. The compositions are useful for the manufacture of sealants and extrudible goods such as hoses.

Abstract: Polysulfide-polyether and polysulfide-polyformal polymers having terminals inert to oxidative curing dissolve rapidly in molten elemental sulfur resulting in improved impact strength for the cooled solidified product.

Abstract: The use of polysulfide rubbers cured with dilower alkyl tin oxides in hot applied processes and articles formed thereby are disclosed. The compositions are useful as hot applied sealants and in the extrusion of hoses and similar rubber articles.

Abstract: Diacrylate esters of dithiodiglycol and of polyether and polyformal oligomers thereof, their preparation, and use in combination with other radiation curable prepolymers for preparation of radiation curable compositions are disclosed.

Abstract: High molecular weight polysulfide polymers are produced by a novel process using polythiodiglycol, polymerizing it with an acid catalyst and with means for removing the water of reaction to make a medium molecular weight halogen-terminated polymer. The resultant halogen-terminated polymer may then be reacted with sodium polysulfide to form a latex dispersion of very high molecular weight. The dispersion may then be converted to --SH terminated polymers by the usual methods.

Abstract: Tin salts formed by the reaction between di-lower alkyl or diaryl tin oxides, and dimercaptoethyl formal and similar dimercapto compounds are disclosed. The final products are useful as ultraviolet light stabilizers for poly(vinyl chloride) resins and for the articles produced therefrom.

Abstract: Diesters of succinic, glutaric, adipic, and phthalic acid with hexyloxyethoxyethanol or butoxyethoxyethoxyethanol are disclosed. They are useful as plasticizers with extended temperature ranges in elastomers.

Abstract: A novel group of amine formal polymers of the general formula: ##STR1## wherein R is hydrogen, --CH.sub.2 R" or ##STR2## R' is hydrogen or --CH.sub.2 R" and R" is hydrogen, alkyl or hydroxyalkyl, n is 1 to 8, m is 0 to 8 and R, R', and R" may be the same or different. The polymers may be prepared by reacting bis(haloethyl)formals with ammonia or primary amines and/or monoalkanolamines in the presence of aqueous alkali. The products may be used as, e.g., rust inhibitors, acid scavengers, antioxidants and epoxide and urethane curing catalysts. Certain of the polymers are especially useful as epoxide curing agents.

Abstract: tin salts formed by the reaction of di lower alkyl or aryl tin oxides and dimercapto ethyl formal and similar dimercapto compounds of the general formula ##STR1## wherein R is --(CH.sub.2).sub.m (OCH.sub.2).sub.s --O--(CH.sub.2).sub.m --(OCH.sub.2).sub.p --O--.sub.n (CH.sub.2).sub.m -- wherein p is 0 or 1, m is 2 to about 6 and n is 0 to about 6 and R' is lower alkyl of up to about 10 carbon atoms, or carbocyclic aryl containing one or two aromatic rings when combined with conventional tin based stabilizers show a synergistic light and heat stabilizing effect in poly(vinyl chloride) polymers.