Rip A Lee

US Patent 11173468 Polymer flake degassing system and methods

US Patent 11173475 Light treatment of chromium catalysts and related catalyst preparation systems and polymerization processes

US Patent 11174329 Multi- or dual-headed compositions useful for chain shuttling and process to prepare the same

US Patent 11174378 Metallocene catalyst system for producing LLDPE copolymers with tear resistance and low haze

US Patent 11180592 Method for manufacturing partially fluorinated polymers

US Patent 7405261 Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and process for preparing polyolefins

US Patent 7405359 Mg-Al-based hydrotalcite-type particles, chlorine-containing resin composition and process for producing the particles

US Patent 11186655 Off-line filter free Ziegler-Natta catalyst preparation

US Patent 11186694 Polyolefin porous separator and preparation method thereof

US Patent 11186706 Machine direction oriented films comprising multimodal copolymer of ethylene and at least two alpha-olefin comonomers

US Patent 7765855 Adhesive compositions and method for selection thereof

US Patent 7767771 Chain growth reaction process

US Patent 7776232 Powdery white vulcanization promoter composition and rubber compositions

US Patent 7776951 Rubber composition and tire comprising thereof

US Patent 7776980 Monocyclopentadienyl complexes

US Patent 7776986 Butene-1 (Co)Polymers having low isotacticity

US Patent 7799886 Diene polymer and production process thereof

US Patent 7803887 Metallocene compounds

US Patent 7816478 Polyethylene thick film and process for preparing polyethylene

US Patent 7820580 Nickel-based catalysts for preparing high cis 1,4-polydienes

US Patent 7829641 Process for the preparation of multimodal polyethylene resins

US Patent 7829642 Polymerization catalyst composition for polymerization of isoprene compound

US Patent 7829646 Olefin polymers, method of making, and use thereof

US Patent 7838611 Ethylene polymer, catalyst for ethylene polymer production, and method for producing ethylene polymer

US Patent 7842763 Catalyst compositions and polyolefins for extrusion coating applications

US Patent 7842829 Catalyst systems based on aromatic diimine ligands

US Patent 7847039 Transition metal complexes, and catalysts compositions for preparing ethylene homopolymers or copolymers

US Patent 7858718 Catalysts based on 2-aryl-8-anilinoquinoline ligands

US Patent 7858817 Metallocene-substituted pyridyl amines, their metal complexes, and processes for production and use thereof

US Patent 7868108 Transition metal compound, ligand system, catalyst system and process for preparing polyolefins

US Patent 7875690 Ethylene-alpha olefin copolymers and polymerization processes for making the same

US Patent 7884159 Propylene polymer composition, film, stretched film, shrink film and a method for producing shrink package

US Patent 7888444 Production of isotactic and regiorandom polypropylene based polymer and block copolymers

US Patent 7888522 Oxygen-bridged bimetallic complex and polymerization process

US Patent 7902308 Polymerisation catalysts

US Patent 7906599 Transition metal compound, catalyst for olefin polymerization containing the same, and method for producing propylene/ethylene-α-olefin block copolymer by using the catalyst

US Patent 7906669 Metallocene-based phosphorus chiral phosphines

US Patent 7910763 Process for preparing a monocyclopentadienyl compound

US Patent 7915335 Rubber composition and pneumatic tire

US Patent 7915339 Insulation compositions containing metallocene polymers

US Patent 7932330 Process for producing modified particle; carrier; catalyst component for addition polymerization; process for producing catalyst for addition polymerization; and process for producing addition polymer

US Patent 7932331 Polymerisation of ethylene and α-olefins with imino-quinolinol complexes

US Patent 7943702 Thermoplastic compositions and method of use thereof for molded articles

US Patent 7947859 Process for production of cycloolefin

US Patent 7951743 Preparation of ultra high molecular weight linear low density polyethylene

US Patent 7964681 Chain growth reaction process

US Patent 7968665 Highly flowable 1-butene polymer and process for producing the same

US Patent 7973114 Monocyclopentadienyl complexes

US Patent 7973115 Catalyst systems based on macrocyclic ligands

US Patent 7976955 Vulcanized rubber composition and articles manufactured therefrom

US Patent 7985817 Homogeneous catalyst system for producing ethylene homopolymer or ethylene copolymers with alpha-olefins

US Patent 7987880 Rubber composition for tire base tread

US Patent 7989580 Phosphorescent iridium complexes

US Patent 7994355 Metallocene-based chiral phosphine or arsine ligands

US Patent 8003740 Method of controlling the relative activity of the different active centers of hybrid catalysts

US Patent 8013093 Articles comprising propylene-based elastomers

US Patent 8013177 Method and system for forming a precursor compound for non-bridged unsymmetric polyolefin polymerization catalyst