Processes for making polyolefin nanocomposites
AssigneeExxonMobil Research and Engineering Company
InventorsAndy Haishung Tsou, Shuji Luo, Donna Jean Crowther, Victor DeFlorio
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Abstract
A process for making a silica-polyolefin composite. The process has the steps of (a) reacting silica particles and an alkyl halosilane in the presence of a solvent and a catalyst to form silane-functionalized silica particles and (b) reacting the silane-functionalized silica particles with a vinyl-terminated polyolefin. There are other processes for making a silica-polyolefin composites. There are other processes for making metal phosphate-polyolefin composites.
Claims96
A process for making a silica-polyolefin composite, comprising:
- (a) reacting silica particles and an alkyl halosilane in the presence of a first solvent and a catalyst to form silane-functionalized silica particles and
- (b) reacting the silane-functionalized silica particles with a vinyl-terminated polyolefin in the presence of a second solvent.
A process for making a silica-polyolefin composite, comprising:
- (a) reacting silica particles and a mercapto alkylalkoxysilane in the presence of a first solvent and a catalyst to form thiol-functionalized silica particles and
- (b) reacting the thiol-functionalized silica particles with a vinyl-terminated polyolefin in the presence of a second solvent.
A process for making a silica-polyolefin composite, comprising:
- (a) reacting silica particles and 1-(chlorosilyl)propyl 2-bromoisobutyrate in the presence of a first solvent and a base to form silylpropyl 2-bromoisobutyrate-functionalized silica particles;
- (b) polymerizing alkyl acrylate at the surfaces of the silylpropyl 2-bromoisobutyrate-functionalized particles in the presence of a second solvent to form polyacrylate-functionalized silica particles;
- (c) capping the polyacrylate-functionalized silica particles via reaction with acrylic acid in the presence of a third solvent;
- (d) reacting vinyl-terminated polyolefin with an alkylchlorosilane in the presence of a fourth solvent and a catalyst to form an alkylchlorosilane-functionalized polyolefin;
- (e) reacting the alkylchlorosilane-functionalized polyolefin and the polyacrylate-functionalized silica particles in the presence of a fifth solvent.
A process for making a silica-polyolefin composite, comprising reacting silica particles, a mercapto alkylalkoxysilane, and a vinyl-terminated polyolefin together in the presence of a catalyst.
A process for making an alpha zirconium phosphate-polyolefin composite, comprising:
- (a) reacting a vinyl terminated polyolefin with a peroxyacid in the presence of a first solvent to form an epoxy-terminated polyolefin;
- (b) reacting the epoxy-terminated polyolefin with an amine-terminated polyalkylene glycol in the presence of a second solvent and a catalyst to form a polyalkylene glycol-terminated polyolefin;
- (c) reacting the polyalkylene glycol-terminated polyolefin and an alpha zirconium phosphate in the presence of a third solvent.
A process for making an alpha zirconium phosphate-polyolefin composite, comprising:
- (a) reacting an alpha zirconium phosphate with thioamine in the presence of a solvent to form a thioamine-substituted alpha zirconium phosphate and
- (b) reacting the thioamine-substituted alpha zirconium phosphate with a vinyl-terminated polyolefin in the presence of a catalyst.
A process for making an alpha zirconium phosphate-polyolefin composite, comprising reacting alpha zirconium phosphate particles, a thioamine, and a vinyl-terminated polyolefin together (a) in the presence of a catalyst in a solvent or (b) in an extruder with the vinyl-terminated polyolefin in a molten state in the presence of a catalyst.
Dependencies are inferred from the claim text.