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US 2025/0066516 A1Published application
Hydrogenated polybutadiene polymers and rubber compositions incorporating same
OwnerRyan J. HUE, Rajith M. JAYASINHA ARACHCHIGE +2inventors
InventorsRyan J. HUE, Rajith M. JAYASINHA ARACHCHIGE, Jeffrey M. MAGISTRELLI, Bret J. CHISHOLM
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Abstract
Embodiments of the present disclosure are directed to polymers, wherein the polymers comprise hydrogenated 1,4-polybutadiene having a cis content of about 50% to about 96%, a vinyl content of about 0% to about 1%, and a trans content of about 1% to about 10%. The hydrogenated 1, 4-polybutadiene has a degree of hydrogenation of about 3% to about 50%.
Claims26
A polymer comprising:
- partially hydrogenated 1,4-polybutadiene having a cis content of about 50% to about 96%, a vinyl content of about 0% to about 1%, and a trans content of about 1% to about 10%,
- wherein the partially hydrogenated 1,4-polybutadiene has a degree of hydrogenation of about 3% to about 50%.
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A method comprising:
- polymerizing a solution comprising 1,3-butadiene to yield 1,4-polybutadiene having a cis content of about 50% to about 99.5%, a vinyl content of about 0.1% to about 1%, and a trans content of about 1% to about 10%, wherein the polymerization is catalyzed with a lanthanide metal complex or a nickel metal complex;
- and
- hydrogenating the 1,4-polybutadiene to form hydrogenated 1,4-polybutadiene having a degree of hydrogenation of about 3% to about 50%, wherein the hydrogenation is catalyzed with a metal catalyst.
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Dependencies are inferred from the claim text.