Polysulfide compositions having a polyether synergist are disclosed. Polysulfide compositions that contain polyether synergists exhibit a rapid onset of cure and have acceptable final properties. The polysulfide compositions can be used as sealants.

Polysulfide compositions having a polyether synergist are disclosed. Polysulfide compositions that contain polyether synergists exhibit a rapid onset of cure and have acceptable final properties. The polysulfide compositions can be used as sealants.

Various embodiments disclosed related to sealant tape. The sealant tape can include a cured product of a sealant composition including a curable liquid that includes a polysulfide, a polythioether, a copolymer thereof, or a combination thereof. The sealant composition also includes a curing agent for curing the curable liquid. Various embodiments provide cured products of the sealant composition, sealant tapes including the cured product, and sealant tapes including any suitable material with an adhesive pattern thereon.

A latex composition includes a sulfur-based vulcanizing agent and a xanthogen compound mixed with a conjugated diene polymer latex, the aqueous dispersion of a sulfur-based vulcanizing agent being a dispersion in which the sulfur-based vulcanizing agent is dispersed in water using an anionic surfactant.

A latex composition includes a sulfur-based vulcanizing agent and a xanthogen compound mixed with a conjugated diene polymer latex, the aqueous dispersion of a sulfur-based vulcanizing agent being a dispersion in which the sulfur-based vulcanizing agent is dispersed in water using an anionic surfactant.

The invention relates to copolymers and molding compounds having reactively bonded sulfur and an overall low sulfur content. The copolymers and molding compounds of the invention are substantially colorless and odorless while sufficiently flame-retardant and can be used in the building industry and electrical industry.

A vulcanizate prepared by a method comprising introducing an elastomer, a filler, and a polar polysulfide crosslinking agent to form a masterbatch and introducing a curative to the masterbatch to form a vulcanizable composition. Vulcanizing the composition to graft the polar group from the crosslinking agent onto an elastomer to increase the hydrophilicity of the composition.

A vulcanizate prepared by a method comprising introducing an elastomer, a filler, and a polar polysulfide crosslinking agent to form a masterbatch and introducing a curative to the masterbatch to form a vulcanizable composition. Vulcanizing the composition to graft the polar group from the crosslinking agent onto an elastomer to increase the hydrophilicity of the composition.

The present invention relates to a polymer alloy comprising a sulphur-containing aromatic polymer and at least one fluoroelastomer, which has improved dispersibility and improved mechanical properties. The invention also relates to a process for the preparation of said polymer alloy and to an article comprising the same.

The present invention relates to a polymer alloy comprising a sulphur-containing aromatic polymer and at least one fluoroelastomer, which has improved dispersibility and improved mechanical properties. The invention also relates to a process for the preparation of said polymer alloy and to an article comprising the same.