Thioacetate Functionalized Isobutylene-Based Polymers and Curable Compositions Containing the Same
AssigneeExxonMobil Engineering & Technology Company
InventorsPaul Tu Quang Nguyen, Edward J. Blok, Ranjan Tripathy, Jason A. Mann, Anthony J. Dias
Life of this patent
Estimating the term…
Abstract
Provided herein are thioacetate isobutylene-based polymer compositions comprising thioalkylated functionalized polymer, and a sulfur donor and/or accelerator cure system. The thioalkylated functionalized polymer is produced via nucleophilic substitution reaction in solution. The present thioacetate functionalized isobutylene-based polymer compositions together with various accelerators and sulfur donors can form thermosets useful for pharmaceutical and tire applications without the use of zinc or a zinc oxide activator.
Claims19
A thioacetate isobutylene-based polymer composition comprising
- (a) a thioalkylated functionalized polymer;
- and
- (b) one of or a combination of any of the following:
- (i) a sulfur donor;
- (ii) a blend of sulfur and a sulfur donor;
- and
- (iii) an accelerator cure system.
A thermoset composition comprising:
- (a) a thioalkylated functionalized polymer;
- and
- (b) one of or a combination of any of the following:
- (i) a sulfur donor;
- (ii) a blend of sulfur and a sulfur donor;
- and
- (iii) an accelerator cure system;
- wherein the composition is substantially free of zinc.
Dependencies are inferred from the claim text.