1
Cipriano Cipriani, Henry J Boyd: Stretch wrap film composition. El Paso Polyolefins Company, Fred S Valles, Margareta LeMaire, April 5, 1983: US04379197 (62 worldwide citation)

Films especially useful for the stretch wrapping of pallet loads are prepared from compositions consisting essentially of a linear low density polyethylene resin free of any polymerized vinyl acetate groups and from about 0.3 to about 3.0 wt % sorbitan monooleate based on the weight of the resin.


2
Kiyoshi Hattori, John H Myers: Heat-sterilizable polyolefin compositions and articles manufactured therefrom. El Paso Polyolefins Company, Fred S Valles, Margareta LeMaire, September 10, 1985: US04540416 (26 worldwide citation)

Heat-sterilizable films are made from a polymer blend of about 10 to about 60 wt % random propylene-ethylene copolymer containing from about 1 to about 6 wt % ethylene-derived units and about 40 to about 90 wt % linear low density polyethylene. The films are especially useful in the manufacture of c ...


3
Harold K Ficker: High clarity propylene polymer compositions of improved impact strength. El Paso Polyolefins Company, Fred S Valles, Margareta Le Maire, February 28, 1984: US04434264 (22 worldwide citation)

High clarity propylene polymer compositions having improved impact strength are comprised of a blend of a random copolymer of propylene and ethylene, containing from about 1 to about 6 wt % polymerized ethylene, with a linear low density polyethylene in a weight ratio range between about 80:20 and a ...


4
Kiyoshi Hattori, John H Myers: Heat-sterilizable polyolefin compositions and articles manufactured therefrom. El Paso Polyolefins Company, Fred S Valles, Margareta LeMaire, August 20, 1985: US04536549 (13 worldwide citation)

Heat-sterilizable films are made from a polymer blend of about 10 to about 60 wt % random propylene-ethylene copolymer containing from about 1 to about 6 wt % ethylene-derived units and about 40 to about 90 wt % linear low density polyethylene. The films are especially useful in the manufacture of c ...


5
Karl W Wikelski, Henry K Tyson: Lubrication system for reciprocating plunger compressors. El Paso Polyolefins Company, Fred S Valles, Margareta LeMaire, October 21, 1980: US04229011 (12 worldwide citation)

An improved lubrication system is provided for the cylinder of a reciprocatory plunger rod compressor, having a stationary annular seal assembly around said plunger rod. The key feature of this system resides in the incorporation of check valves in lubricant supply passages located internally within ...


6
Edward A Zukowski: Ethylene-propylene block copolymerization process and product. El Paso Polyolefins Company, Fred S Valles, Margareta LeMaire, August 18, 1981: US04284738 (10 worldwide citation)

A process for the preparation of ethylene-propylene block copolymers at high catalyst productivity rates resulting in polymer products having improved impact strength-polymerized ethylene content relationship. The improvement is obtained by reacting preformed propylene prepolymer still containing ac ...


7
Edward A Zukowski: Two-phase ethylene-propylene block copolymerization process. El Paso Polyolefins Company, Fred S Valles, Margareta LeMaire, June 8, 1982: US04334041 (9 worldwide citation)

A process for the preparation of ethylene-propylene block copolymers at improved catalyst productivity rates involving the formation of a propylene prepolymer by polymerization of propylene in liquid phase in the presence of a catalyst system containing titanium halide supported on magnesium halide ...


8
Malcolm J Kaus, Birendra K Patnaik: Block copolymerization process and product. El Paso Polyolefins Company, Fred S Valles, Margareta LaMaire, December 29, 1981: US04308357 (9 worldwide citation)

A process for the preparation of ethylene-propylene block copolymers at high catalyst productivity rates resulting in polymer products having improved impact strength-polymerized ethylene content relationship.


9
Birendra K Patnaik: Propylene copolymerization process and product. El Paso Polyolefins Company, Fred S Valles, Margareta LeMaire, September 28, 1982: US04351930 (9 worldwide citation)

The polymerized ethylene content of a copolymer of ethylene and propylene is enhanced without lowering the isotacticity of the copolymer when the polymerization is conducted in the presence of small amounts of butene-1.


10
Charles A Trischman, Paula S Weissberger, Robert B Steinert: Additive-containing polyolefin beads and process for their preparation. El Paso Polyolefins Company, Fred S Valles, Margareta LeMaire, June 5, 1984: US04452928 (6 worldwide citation)

The invention provides an additive-containing polyolefin having an inner bead of a first polyolefin and an outer adherent coating of a second polyolefin encapsulating the additive.