Processes for forming vulcanizable elastomeric formulations and vulcanized elastomeric articles
AssigneeEastman Chemical Company
InventorsScott Donald Barnicki, Frederick Ignatz-Hoover, Robert Thomas Hembre, Andrew Neil Smith, Henk Kreulen, Aruna M. Velamakanni
Life of this patent
Estimating the term…
Abstract
Processes for forming a vulcanizable elastomeric formulation are disclosed. The processes include the steps of mixing an elastomer with a vulcanizing agent to form a vulcanizable elastomeric formulation that includes the vulcanizing agent dispersed in the elastomeric compound, wherein the vulcanizing agent includes a cyclododecasulfur compound. A process for forming a vulcanized elastomeric article is also described.
Claims20
A process for forming a vulcanizable elastomeric formulation, said process comprising mixing an elastomer with a vulcanizing agent to form a vulcanizable elastomeric formulation that includes said vulcanizing agent dispersed in the elastomeric compound;
- wherein said vulcanizing agent includes a cyclododecasulfur compound.
A process for forming an elastomeric article, said process comprising a) mixing an elastomer with a vulcanizing agent to form a vulcanizable elastomeric formulation that comprises said vulcanizing agent dispersed in said elastomer, wherein the vulcanizing agent includes a cyclododecasulfur compound;
- b) forming the vulcanizable elastomeric formulation into a formed shape;
- and c) vulcanizing the formed shape to form a vulcanized elastomeric article.
A process for forming a vulcanized elastomeric article, said process comprising (a) mixing an elastomer with a vulcanizing agent to form a vulcanizable elastomeric formulation that includes said vulcanizing agent dispersed in said elastomer;
- (b) forming the vulcanizable elastomeric formulation into a formed shape;
- and (c) vulcanizing the formed shape to form said vulcanized elastomeric article;
- wherein at least one of said mixing and forming steps comprises increasing the bulk average processing temperature of said vulcanizable elastomeric formulation to greater than 125° C. for at least a portion of said step.
Dependencies are inferred from the claim text.