Eastman Chemical Company

Synthomer Adhesive Technologies LLC

Raymond Prescott Cottle

Marc Stacey Somers

Bennett H Novak

Puthenkovilakom Rajesh Raja

Terri Roxanne Carvagno

Andrea Gail Hagood

Mutombo Joseph Muvundamina

Gary Robert Robe

Timothy Williams

Dhiraj Sudesh Sood

Bee Kim Liew

Rajesh Puthenkovilakom Raja

Jianning Liu

Susana Marques

Ming Allison Yuan

Da Yu Vincent Zhang

Boon Hui Janice Ang

Xianchun Wu

Chad Johnson

Thomas H Quinn

Kenneth Wayne Hampton, Jr

Eugene H Brown

Michelle C Kueppers

Puthenkovilakom Rajeshraja

Propylene-ethylene copolymers are provided that exhibit superior tensile strength and mechanical properties due to their specific propylene and ethylene content, triad tacticity, viscosity, and crystallinity. Moreover, we have discovered that certain processing conditions, such as polymerization temperature and external donor to catalyst ratios, can facilitate the production of the high tensile strength propylene-ethylene copolymers described herein. Furthermore, the high tensile strength propylene-ethylene copolymers may be used to produce a variety of hot melt adhesives, such as those for hygiene applications, woodworking applications, lamination applications, and packaging applications, which exhibit unique and superior mechanical properties.

Propylene-ethylene copolymers and adhesives containing propylene-ethylene copolymers

Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.

Amorphous propylene-ethylene copolymers

Adhesive composition comprising amorphous propylene-ethylene copolymer and polyolefins

Adhesives comprising amorphous propylene-ethylene copolymers

Adhesive composition comprising amorphous propylene-ethylene copolymer and propylene polymer

A low molecular weight copolymer is provided comprising propylene and ethylene,

Amorphpus propylene-ethylene copolymers

There is provided is a method for making a higher purity alcohol comprising: a) contacting an impure alcohol composition comprising: (i) an alcohol compound; and (ii) from about 50 ppm to about 5 weight percent, based on the weight of the impure alcohol composition, of at least one hydrogenable contaminant having an unsaturated bond, with hydrogen in a hydrogenation reactor and in the presence of a hydrogenation catalyst to produce a reaction mixture comprising the alcohol compound and a hydrogenated contaminant product wherein at least 10 mole % of the at least one hydrogenable contaminant in the reaction mixture is converted; and b) separating the alcohol compound from at least a portion of the reaction mixture to produce an enriched alcohol composition having a lower concentration of the hydrogenated contaminant product. There is also provided an alcohol composition having less than about 500 ppm of at least one hydrogenable contaminant.

Method for making a high purity alcohol

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Longview, TX, United States of America

Raymond Prescott Cottle