Phillips Petroleum Company

Chevron Phillips Chemical Company LP

Other

Solvay Specialty Polymers Usa, LLC

Solvay Sa

David A Soules

Youlu Yu

Jeffrey S Fodor

Kevin Soules

Eric D Schwerdtfeger

Jon F Geibel

Rex L Bobsein

Michael C Yu

Roy F Wright

Aubrey South, Jr

Randy L Hagenson

Qing R Yang

Jeremy M Praetorius

Ashish M Sukhadia

Michael S Matson

Carlton Edwin Ash

Vivek Rohatgi

Fernando C Vidaurri

Mary J Hagenson

Larry M Selby

Dirk M Sutherlin

Ethylene-based polymers having a density from 0.94 to 0.96 g/cm, a Mn from 5,000 to 14,000 g/mol, a ratio of Mw/Mn from 18 to 40, and at least one of a PENT value at 2.4 MPa of at least 11,500 hr and/or a W90 from 7.5 to 15 wt. % are disclosed. Additional ethylene polymers can have the same density, Mn, and Mw/Mn values, as well as a relaxation time from 0.5 to 3.5 sec, a CY-a parameter from 0.48 to 0.68, a HLMI from 5 to 11 g/10 min, a viscosity at HLMI from 3,000 to 7,500 Pa-sec, and a higher molecular weight component (HMW) and a lower molecular weight (LMW) component, in which a ratio of the number of SCBs at Mp of the HMW component to the number of SCBs at Mp of the LMW component is from 3.5 to 8.

Dual metallocene bimodal HDPE resins with improved stress crack resistance

A bimodal polymer composition comprising a lower molecular weight homopolymer and a higher molecular weight copolymer wherein the bimodal polymer composition has a density of from about 0.930 gram per cubic centimeter (g/cc) to about 0.970 g/cc, a ratio of high load melt index:melt index of from about 10 to about 150 and an Environmental Stress Crack Resistance (ESCR) of from about 25 hours to about 300 hours when measured in accordance with ASTM D1693 or ASTM D2561. A chromium-catalyzed polymer composition comprising (i) a lower molecular weight homopolymer and (ii) a higher molecular weight copolymer, wherein the bimodal polymer composition has an Environmental Stress Crack Resistance (ESCR) of from about 25 hours to about 300 hours when measured in accordance with ASTM D1693 or ASTM D2561.

Polymer composition and methods of making and using same

A means of suspending items within a transportable container, such as an environmental enclosure like a common 'cooler' or 'ice-chest'. Inside the container, items are supported by resting on top of a shelf or platform that may be rigid, semi-rigid, inflatable, pleated, telescoping, floating, cushioned, or flexible. The shelf may be supported by straps that may exit the container and are fastened to, or encircle, the interior and/or exterior of the container. The mechanism for attachment to the outside of the container may be a simple loop over an external anchor point affixed to the outside of the container, or a latch or latches, or a magnetic device, or a continuous loop or loops that encircle the container such that no external anchor is required.

Ice chest suspension device

A process comprising contacting a reaction product composition comprising a poly(arylene sulfide) composition and a polar organic compound, wherein the polar organic compound comprises greater than or equal to about 1 wt. % thiophenol, with a C-C&#x3b1;,&#x3b2;-unsaturated ketone, a C-C&#x3b1;,&#x3b2;-unsaturated ester, a C-C&#x3b1;,&#x3b2;-unsaturated amide, or any combination thereof, wherein after the contacting, the polar organic compound comprises less than about 1 wt. % thiophenol. A process comprising contacting a composition comprising a polar organic compound and greater than or equal to about 1 wt. % thiophenol with a C-C&#x3b1;,&#x3b2;-unsaturated ketone, a C-C&#x3b1;,&#x3b2;-unsaturated ester, a C-C&#x3b1;,&#x3b2;-unsaturated amide, or any combination thereof, to form a composition comprising the polar organic compound and less than about 1 wt. % thiophenol.

Method of thiophenol removal from poly(arylene sulfide) polymer compositions

Disclosed herein is a process for preparing cured arylene sulfide polymers. A first curing vessel comprising a first agitator is used to cure a poly(arylene sulfide) compacted powder. The curing proceeds until the compacted powder reaches a melt flow rate within a target range. When the melt flow rate of the compacted powder first reaches the target range, the power consumption of the first agitator is determined. A second curing vessel comprising a second agitator is charged with a second quantity of the compacted poly(arylene sulfide) powder. The second quantity of compacted powder is cured in the second vessel until the power consumption of the second agitator reaches the value at which the melt flow rate in the first curing vessel first reached the target range.

Method of measuring extent of curing of compacted poly(arylene sulfide)

A process is provided for making a composition said process comprising mixing about 60% by weight to about 90% by weight of a first P(AS) having a melt flow index of about 120 grams/10 minutes or more and about 10% by weight to about 40% by weight of a second P(AS) having a melt flow index of about 110 grams/10 minutes or less. In another embodiment of this invention, said composition and manufactures produced from said composition are provided.

Poly (arylene sulfide) compositions and manufactures

Poly(arylene sulfide/sulfone) polymers are treated in order to increase melt stability and decrease impurities by contacting the poly(arylene sulfide/sulfone) polymer with a soluble zinc compound and an acidic solution. In one embodiment, the polymer is treated first with the soluble zinc compound, followed by treatment with the acidic solution. In another embodiment, the polymer is treated in one step with a solution comprising a water soluble zinc compound in an acidic solution.

Treatment of polyarylene sulfide/sulfone polymers

A method is provided for selectively extracting the lower molecular weight fraction of a poly(arylene sulfide) polymer by contacting the polymer with a polar organic compound and a promoter compound to form a less dense polymer-lean liquid phase and a more dense polymer-rich liquid phase, separating the polymer-lean liquid phase from the polymer-rich liquid phase, and recovering the polymer from the polymer-rich phase. Alternatively, either of the phases can be isolated and polar organic compound and optionally promoter can be added to form two new phases, followed by isolation of the new polymer-rich phase. This process can be repeated as often as desired or practicable in order to recover polymer having a desired molecular weight and/or molecular weight distribution.

Process for the removal of lower molecular weight fractions of

Continuous, woven and non-woven glass fibers are impregnated with certain silanes before use of the fibers to make reinforced thermoplastic composites using pultrusion or compression molding. Continuous, woven and non-woven glass fiber reinforced composites are also made by concurrently combining the fibers with certain silanes and a thermoplastic matrix material using pultrusion or compression molding.

Poly(arylene sulfide) resins reinforced with glass fibers

Compositions including polymers, copolymers and blends of stabilized stereoregular polymers of branched higher alpha-olefins, grafting compounds, free radical generators, glass and amino-functional silanes are provided as well as methods for making these compounds and articles thereof. These may also contain polyurethane film formers.

Glass-reinforced chemically coupled branched higher alpha-olefin

Treatment of polyarylene sulfide/sulfone polymers with zinc compound and

Apparatus and methods are disclosed for producing fiber reinforced thermoplastic materials having substantially reduced amounts of breakage of the fibers and substantially increased tensile strength. In the preferred embodiment, relatively large diameter rollers are used to guide the filaments through a slurry bath of powdered resin, and spray header means are provided in the slurry bath to forcefully contact the filaments with the resin in the slurry.

Growing community of inventors

Bartlesville, OK, United States of America

David A Soules