1
James J McAlpin, Glenn A Stahl: Fibers and oriented films of polypropylene higher .alpha.-olefin copolymers. Exxon Chemical Patents, Douglas W Miller, November 5, 1996: US05571619 (69 worldwide citation)

A propylene, .alpha.-olefin copolymer, where the .alpha.-olefin has 5 or more carbon atoms made with a metallocene catalyst system provides substantially higher cold flow resistance from when the propylene copolymer is made with an .alpha.-olefin having 4 or less carbon atoms. Other properties such ...


2
Bradley P Etherton, James J McAlpin, Terrence Huff, Edward N Kresge: Unsaturated propylene/.alpha., .omega.-diene copolymers. Exxon Chemical Patent, Myron B Kurtzman, Douglas W Miller, April 2, 1996: US05504171 (47 worldwide citation)

Disclosed are unsaturated .alpha.-olefin/.alpha.,.omega.-diene copolymers, and a method of preparation thereof. The copolymers are generally crystalline, free of gel and cross-links, and contain unsaturated side chains and long chain branching. The copolymers contain up to 5 mole percent diene incor ...


3
Bradley P Etherton, James J McAlpin, Terrence Huff, Edward N Kresge: Method for preparation of unsaturated alpha-olefin copolymers. Exxon Chemical Patents, D W Miller, May 7, 1996: US05514761 (43 worldwide citation)

Disclosed are unsaturated .alpha.-olefin/.alpha., .omega.-diene copolymers, and a method of preparation thereof. The copolymers are generally crystalline, free of gel and cross-links, and contain unsaturated side chains and long chain branching. The copolymers contain up to 5 mole percent diene inco ...


4
James J McAlpin, Jeffrey W C Kuo, Donald C Hylton: Process of making oriented film or structure. Exxon Chemical Patents, M Susan Spiering, November 21, 1995: US05468440 (37 worldwide citation)

Applications of isotactic polypropylene resin compositions produced from metallocene catalyst wherein the resins yield articles with comparable shear modulus and heat distortion temperature values to those of conventional polypropylene, but in which the fabrication of the article is achieved at temp ...


5
Galen C Richeson, Glenn A Stahl, James J McAlpin, Anthony N Speca: Nonwoven fabrics. Exxon Chemical Patents, Paige Schmidt, April 6, 1999: US05891814 (35 worldwide citation)

This invention relates to improved polypropylene nonwoven fabrics. The fabrics are made from isotactic polypropylene which has been produced with a catalyst systems comprising at least two metallocenes. These nonwoven fabrics, particularly when prepared using a spunbonding process, exhibit significa ...


6
Aspy K Mehta, Michael C Chen, James J McAlpin, Anthony N Speca, Kelly Tormaschy, Chon Y Lin: Propylene polymers for films. ExxonMobil Chemical Patents, Paige Schmidt, Kevin M Faulkner, Leandro Arechederra, June 10, 2003: US06576306 (30 worldwide citation)

This invention relates generally to crystalline propylene polymers, to methods for their production and to methods for their use in film applications. Specifically, this invention relates to crystalline propylene polymers comprising both propylene homopolymer and propylene copolymer. The composition ...


7
Anthony N Speca, Jeffrey L Brinen, James J McAlpin: Engineered catalyst systems and methods for their production and use. Exxon Chemical Patents, Paige Schmidt, July 28, 1998: US05786291 (25 worldwide citation)

This invention relates to supported metallocene catalyst systems and to methods for their production and use. Specifically, this invention relates to supported catalyst systems having unique, predetermined properties resulting from the designed distribution of catalyst components within and upon por ...


8
Aspy K Mehta, Michael C Chen, James J McAlpin, Anthony N Speca, Kelly Tormaschy, Chon Y Lin: Propylene polymers for films. ExxonMobil Chemical Patents, Paige Schmidt, Kevin M Faulkner, Leandro Arechederra, June 24, 2003: US06583227 (24 worldwide citation)

This invention relates generally to crystalline propylene polymers, to methods for their production and to methods for their use in film applications. Specifically, this invention relates to crystalline propylene polymers comprising both propylene homopolymer and propylene copolymer. The composition ...


9
James J McAlpin, Wai Y Chow: Compositions for preparing cement-adhesive reinforcing fibers. Exxon Chemical Patents, M B Kurtzman, August 28, 1990: US04952631 (20 worldwide citation)

A modifier composition is disclosed for compounding with a polyolefin to produce a resin from which cement adherent polyolefin fibers may be produced by conventional fiber forming methods. The modifier composition comprising a polyolefin resin modified to contain a reactive Si(IV) moeity. A preferre ...


10
James J McAlpin, Wai Y Chow: Composition for preparing cement-adhesive reinforcing fibers. Exxon Chemical Patents, M B Kurtzman, December 1, 1987: US04710540 (19 worldwide citation)

A modifier composition is disclosed for compounding with a polyolefin to produce a resin from which cement adherent polyolefin fibers may be produced by conventional fiber forming methods. The modifier composition comprises the reaction product obtained from the high shear dry blending of an alkylam ...