Stephen J Hudak: Adhesives and composite structures formed therewith. Equistar Chemincals, Shao Guo, January 23, 2001: US06177516 (51 worldwide citation)

Improved adhesives useful for the manufacture of composite structures by lamination, extrusion and coextrusion processes are provided. The compositions of the invention utilize ethylene copolymers having a network structure and exhibiting unique melt elasticity characteristics in combination with mo ...

Leonard V Cribbs, Bradley P Etherton, Mark P Mack, James H Meas Jr: Olefin polymerization process. Equistar Chemicals, Shao Guo, October 3, 2000: US06127484 (32 worldwide citation)

A multiple stage or multiple zone process for making olefin polymers is disclosed. A single-site catalyst, preferably one that contains a heteroatomic ligand, is used in the first stage or zone, and a Ziegler-Natta catalyst is used at a higher temperature in later stages or zones. A parallel multipl ...

Kelly L Williams, Leonard V Cribbs, Stephen M Imfeld, Venki Chandrashekar: Polyethylene blends and films. Equistar Chemicals, Shao Guo, March 12, 2002: US06355733 (30 worldwide citation)

A blend comprising a high molecular weight, medium density polyethylene (HMW, MDPE) and a linear low density polyethylene (LLDPE) is disclosed. The blend comprises from about 20 wt % to about 80 wt % of HMW MDPE. The HMW MDPE has a density from about 0.92 to about 0.944 g/cc, a melt index MI

Bi Le Khac, Wei Wang, Edward T Shawl: Process for preparing comb-branched polymers. Arco Chemical Technology, Shao Guo, April 10, 2001: US06214958 (26 worldwide citation)

A continuous process for making a comb-branched copolymer of an acrylic monomer and a polyether macromonomer is disclosed. The process is performed by continuously feeding a reaction zone with a monomer stream that contains an acrylic acid and a polyether macromonomer, and an initiator stream. The c ...

Jia Chu Liu, Mark P Mack, Clifford C Lee: Preparation of ultra-high-molecular-weight polyethylene. Equistar Chemicals, Shao Guo, July 24, 2001: US06265504 (18 worldwide citation)

An ultra-high-molecular-weight polyethylene (UHMWPE) is disclosed. The UHMWPE has a weight average molecular weight (Mw) greater than about 3,000,000 and molecular weight distribution less than about 5. A process for making the UHMWPE is also disclosed. The process is performed with a heteroatomic l ...

Harilaos Mavridis, Mark K Reinking, Ramesh N Shroff, Joel A Mutchler, Charles S Holland, Keta M Lindstrom, Kiran M Gupte, Michael H Treptau, Francis M Mirabella: Enhanced-impact LLDPE with a shear modifiable network structure. Equistar Chemicals, Shao Guo, January 9, 2001: US06171993 (16 worldwide citation)

The present invention provides an ethylene copolymer resin that has unique melt elastic properties not observed in ethylene copolymers heretofore known. Specifically, the ethylene copolymer resin of the present invention when in pelletized form has a reduction in melt elasticity (ER) of 10% or more ...

Philip J Garrison, Lawrence R Wallace, Danny L Wise, James H Meas Jr, Leonard V Cribbs, Jean A Merrick Mack, Paula L Nygard: High molecular weight, medium density polyethylene. Equistar Chemicals, Shao Guo, November 26, 2002: US06486270 (13 worldwide citation)

A high molecular weight, medium density polyethylene (HMW, MDPE) is disclosed. The polyethylene comprises from about 85 to about 98 wt % of recurring units of ethylene and about 2 to about 15 wt % of a C

Kelly L Williams: Preparation of machine direction oriented polyethylene films. Equistar Chemicals, Shao Guo, September 2, 2003: US06613841 (13 worldwide citation)

A process for making MD (machine direction) oriented polyethylene film is disclosed. The process comprises blending a high-molecular weight, medium-density polyethylene (HMW MDPE) and a linear low-density polyethylene (LLDPE), converting the blend into a thick film, and orienting the thick film into ...

Craig C Meverden, Sandor Nagy: Polypropylene preparation. Equistar Chemicals, Shao Guo, April 1, 2003: US06541583 (9 worldwide citation)

A propylene polymerization process is disclosed. The process gives polypropylene having isotactic and atactic stereoblock sequences. The process is performed in the presence of a non-bridged bisindenoindol-based single-site catalyst. The polypropylene produced has an isotactic pentad (mmmm) content ...

Anil W Saraf: Clear and printable polypropylene films. Equistar Chemicals, Shao Guo, August 13, 2002: US06433088 (8 worldwide citation)

A clear and printable polypropylene film is disclosed. The film is prepared from a blend of a polypropylene and an ethylene/alkyl acrylate copolymer. It has an excellent adhesion with commonly used inks without surface treatment.