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US 6,608,140 B2Granted
Polymer blends
AssigneeBP Chemicals Limited
InventorsSusan Katherine Christie, Warren Reed, John Norman Reid Samson
Life of this patent
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Abstract
A polymer blend is disclosed which comprises a blend of (1) one or more polymers made using a late transition metal catalyst, and (2) one or more polyolefins made using a free radical process or polymerized using a Phillips type (chromium oxide) catalyst, a metallocene catalyst, or a Ziegler-Natta catalyst.
Claims12
A polymer blend comprising a blend of component (1) comprising one or more polymers made using a late transition metal catalyst of Formula (I):
- wherein M is Fe[II], Fe[III], Co[I], Co[II], Co[III], Mn[I], Mn[II], Mn[III], Mn[IV], Ru[II], Ru[[III] or Ru[IV];
- X represents an atom or group covalently or ionically bonded to the transition metal M;
- T is the oxidation state of the transition metal M and b is the valency of the atom or group X;
- R1, R2, R3, R4, R5, R6 and R7 are independelty selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl;
- and when any two or more of R1-R7 are hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl, said two or more of R1-R7 can be linked to form one or ore cyclic substituents, and component (2) comprising one or more polyolefins made (a) using a free radical polymerisation process, (b) using a polymerisation process catalysed by a Philips supported-chromium oxide catalyst, (c) using a metallocene polymerization catalyst, or (d) using a Ziegler-Natta catalyst, wherein the blend is made by blending together components (1) and (2) in the form of powder or pellets.
2 more elements
Dependencies are inferred from the claim text.