Phillips Petroleum Company

Chevron Phillips Chemical Company LP

Jay Janzen

M Bruce Welch

Syriac J Palackal

David C Rohlfing

Helmut G Alt

Ashish M Sukhadia

Paul J DesLauriers

Jim D Byers

William R Coutant

Kiplin D Cowan

William M Whitte

Louis Moore, Jr

Max P McDaniel

Gil R Hawley

Rolf L Geerts

Paul D Smith

Eric T Hsieh

Konstantinos Patsidis

Michael Schmid

Louis Moore

Kiplan D Cowan

Paul J Des Lauriers

A self supporting film having one or more layers wherein at least one layer has a percent haze of less than 17.8 and the polymer of that layer consists essentially of a polyethylene having a density of at least 0.925 grams per cc, a molecular weight distribution of no more than 4, optionally containing a fluoroelastomer, and methods for making such film are disclosed.

Polyethylene film

A high clarity film containing three layers wherein the polymer of each outer layer is the same or different polyethylene selected from polyethylenes having a density of at least 0.925 g/cc, and a molecular weight distribution of less than 4, and being further characterized by being substantially free of branches having 6 or more carbon atoms, polyethylenes of the outer layers optionally containing a fluoroelastomer.

Films comprising metallocene catalyzed polyethylene

A process to obtain the shear storage modulus G'(.omega.) and/or the shear loss modulus G'(.omega.) of a polymer is provided. This process comprises: (a) producing a viscosity data set by measuring the viscosity of said polymer at various shear rates, while said polymer is in a melted state; (b) producing a parameter data set that comprises values for .eta..sub.0, .tau..sub..eta. and .alpha. by analyzing said viscosity data set; and (c) obtaining said shear storage modulus G'(.omega.) and the shear loss modulus G'(.omega.) by using said parameter data set.

Process to obtain dynamic shear modulus components of a polymer by using

A process for preparing a polymer of ethylene having a flow activation energy higher than that of a substantially linear ethylene polymer of the same molecular weight involving using bridged sandwich-bonded fluorenyl-containing metallocenes and the polymers resulting therefrom.

Method for producing polymer of ethylene

9-substituted fluorenyl-containing metallocenes and their use in the polymerization of olefins is disclosed. In addition, novel 9-cyclohexylfluorenyl or 9-phenylfluorenyl compounds are disclosed. Also methods for preparing such 9-substituted fluorenyl compounds are presented.

Unbridged metallocenes of 9-substituted fluorenyl compounds and use

A sample cell with at least one movable lens is provided for spectrophotometric study.

Sample cell

A method and apparatus for converting mechanical motion displacement to an electrical signal is disclosed. A translucent light scattering member is located between a light source and a light sensor capable of generating an electrical signal representative of the intensity of the light received by the light sensor. The translucent member is moved in a direction parallel to the light beam between the light source and the light sensor in response to a mechanical motion displacement in such a manner that the intensity of the light received by the light sensor is a function of the mechanical motion displacement.

Mechanical motion displacement to electrical signal converter

Growing community of inventors

Bartlesville, OK, United States of America

Jay Janzen