Patent classifications
C08F110/14
GENERAL STRATEGY FOR POLYMER COMPATIBILIZATION
A polymer composition that operates as a polymer compatibilizer is provided. The polymer composition includes a plurality of polymer backbones cross-linked by cross-links that are Diels-Alder reaction products of at least one dienophile-containing moiety and at least one diene-containing moiety.
GENERAL STRATEGY FOR POLYMER COMPATIBILIZATION
A polymer composition that operates as a polymer compatibilizer is provided. The polymer composition includes a plurality of polymer backbones cross-linked by cross-links that are Diels-Alder reaction products of at least one dienophile-containing moiety and at least one diene-containing moiety.
Long chain branched polypropylene via polymerization with aluminum vinyl transfer agent
The present disclosure provides the use of quinolinyldiamido transition metal complexes, an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent, to produce long chain branched propylene polymers.
Long chain branched polypropylene via polymerization with aluminum vinyl transfer agent
The present disclosure provides the use of quinolinyldiamido transition metal complexes, an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent, to produce long chain branched propylene polymers.
Olefin polymerization activators
Embodiments of this disclosure include processes of polymerizing olefins, the process comprising contacting ethylene and a (C.sub.3-C.sub.40)alpha-olefin comonomer in the presence of a catalyst system, the catalyst system comprising a Group IV metal-ligand complex and an ionic metallic activator complex, the ionic metallic activator complex comprising an anion and a countercation, the anion having a structure according to formula (I):formula (I) ##STR00001##
Non-Coordinating Anion Type Activators for use with Polyolefin Polymerization Catalysts
The present disclosure is related to activator compounds represented by:
[Ar(E.sup.1R.sup.1R.sup.2H).sub.x(E.sup.2R.sup.3R.sup.4).sub.y][QR.sup.5R.sup.6R.sup.7R.sup.8].sub.z
In the formula Ar is a C.sub.6-C.sub.30 aromatic hydrocarbyl group, provided that if Ar is a multicyclic ring, then each E.sup.1 and each E.sup.2 are substitutions on a single ring. Also, x is 1 to 4; y is 0 to 3; z=x; and x+y is 2 to 6. Each of E.sup.1 and E.sup.2 are independently selected from nitrogen or phosphorous and Q is selected from group 13 of the Periodic Table of the Elements. Additionally, each of R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from C.sub.1-C.sub.40 aliphatic hydrocarbyl, substituted C.sub.1-C.sub.40 aliphatic hydrocarbyl and each of R.sup.5, R.sup.6, R.sup.7, and R.sup.8 is independently a C.sub.6-C.sub.24 hydrocarbyl or a C.sub.6-C.sub.24 substituted hydrocarbyl. The present disclosure also relates to catalyst systems including a catalyst and the activator compound. Also, the present disclosure relates to methods of polymerizing olefins.
Non-Coordinating Anion Type Activators for use with Polyolefin Polymerization Catalysts
The present disclosure is related to activator compounds represented by:
[Ar(E.sup.1R.sup.1R.sup.2H).sub.x(E.sup.2R.sup.3R.sup.4).sub.y][QR.sup.5R.sup.6R.sup.7R.sup.8].sub.z
In the formula Ar is a C.sub.6-C.sub.30 aromatic hydrocarbyl group, provided that if Ar is a multicyclic ring, then each E.sup.1 and each E.sup.2 are substitutions on a single ring. Also, x is 1 to 4; y is 0 to 3; z=x; and x+y is 2 to 6. Each of E.sup.1 and E.sup.2 are independently selected from nitrogen or phosphorous and Q is selected from group 13 of the Periodic Table of the Elements. Additionally, each of R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from C.sub.1-C.sub.40 aliphatic hydrocarbyl, substituted C.sub.1-C.sub.40 aliphatic hydrocarbyl and each of R.sup.5, R.sup.6, R.sup.7, and R.sup.8 is independently a C.sub.6-C.sub.24 hydrocarbyl or a C.sub.6-C.sub.24 substituted hydrocarbyl. The present disclosure also relates to catalyst systems including a catalyst and the activator compound. Also, the present disclosure relates to methods of polymerizing olefins.
Process to Produce Low Viscosity Polyalphaolefins using Non-Aromatic-Hydrocarbon Soluble Activators
A process for making a poly alpha-olefin (PAO) having high vinylidene content (or combined vinylidene and tri-substituted vinylene content) and low vinyl and/or di-substituted vinylene content, as well as a relatively low molecular weight comprising contacting a feed containing a C.sub.6-C.sub.32 alpha-olefin with a catalyst system comprising non-aromatic-hydrocarbon soluble activator and a metallocene compound, typically a cyclopentadienyl-tetrahydro-s-indacenyl group 4 transition metal compound.
Process to Produce Low Viscosity Polyalphaolefins using Non-Aromatic-Hydrocarbon Soluble Activators
A process for making a poly alpha-olefin (PAO) having high vinylidene content (or combined vinylidene and tri-substituted vinylene content) and low vinyl and/or di-substituted vinylene content, as well as a relatively low molecular weight comprising contacting a feed containing a C.sub.6-C.sub.32 alpha-olefin with a catalyst system comprising non-aromatic-hydrocarbon soluble activator and a metallocene compound, typically a cyclopentadienyl-tetrahydro-s-indacenyl group 4 transition metal compound.
Process to Produce Low Viscosity Polyalphaolefins using Non-Aromatic-Hydrocarbon Soluble Activators
A process for making a poly alpha-olefin (PAO) having high vinylidene content (or combined vinylidene and tri-substituted vinylene content) and low vinyl and/or di-substituted vinylene content, as well as a relatively low molecular weight comprising contacting a feed containing a C.sub.6-C.sub.32 alpha-olefin with a catalyst system comprising non-aromatic-hydrocarbon soluble activator and a metallocene compound, typically a cyclopentadienyl-tetrahydro-s-indacenyl group 4 transition metal compound.