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Patent No. 6049912

Mountable Printable Placard With Headband

A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.

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Attorney: Huseman; Cheryl L.


Number of patents: 25
Last date: May 22, 2012

NumberTitleIssue Date
8183173Fast activating catalyst
A method of preparing a catalyst comprising aging a silica support in an alkaline solution to produce an alkaline aged silica support, removing at least a portion of the alkaline solution from the alkaline aged silica support to produce a dried silica support, and a...
05/22/2012
7981832Methods of activating chromium catalysts
New methods for activating chromium catalysts for polymerization processes decrease the amount of time required for activation and increase catalyst activity. Rapid heating to a first temperature is followed by a first hold period before heating to a higher second t...
07/19/2011
7951881Polyethylene film having improved barrier properties and methods of making same
A method comprising (a) providing a catalyst comprising chromium and a support having a pore volume of from about 1.7 ml/g to about 3.5 ml/g and a surface area of from about 450 m2/g to about 700 m2/g, (b) oxidizing the catalyst to form an oxid...
05/31/2011
7910669Methods of preparing a polymerization catalyst
A method comprising (a) contacting a support and a chromium-containing compound to form chromium-containing support, (b) heat treating the chromium-containing support in an oxidizing atmosphere to form a treated support, (c) contacting the treated support with carbo...
03/22/2011
7906603Polymers having broad molecular weight distributions and methods of making the same
Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Usi...
03/15/2011
7897539Methods of preparing a polymerization catalyst
A method of preparing a composition comprising dry mixing commercial grade alumina and a solid sulfating agent to form a mixture and calcining the mixture to form a sulfated alumina support. ...
03/01/2011
7829646Olefin polymers, method of making, and use thereof
The present invention is directed to PE-100 ethylene copolymers and pipe made thereof having a Tabor abrasion between about 0.01 and about 0.001 grams lost/1000 revolutions. These copolymers are formed by contacting ethylene with at least one mono-1-olefin comonomer...
11/09/2010
7745557Polymers having broad molecular weight distributions and methods of making the same
Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Usi...
06/29/2010
7700516Methods of preparing a polymerization catalyst
A method of preparing a catalyst comprising contacting a support with a trivalent titanium compound and a chromium-containing compound. A catalyst composition comprising a support, chromium, and titanium, wherein the titanium is derived from TiCl3, Ti
04/20/2010
7691633Ultra high molecular weight polyethylene fractions having narrow molecular weight distributions and methods of making and using the same
Polymer fractions such as polyethylene fractions can be produced that have a PDI less than about 2.3 and a Mw greater than about 1,000,000 g/mol, 3,000,000 g/mol, or 6,000,000 g/mol. Such polyethylene fractions are separated from a UHMWPE parent polymer b...
04/06/2010
7678468Composition and method for the addition of saturated slip agents to multilayer polyethylene films
A multilayer polymer film comprising at least one core layer disposed between two skin layers, wherein at least one of the core layers, one of the skin layers, or both one of the core layers and one of the skin layers comprises a saturated organic fatty amide (SOFA)...
03/16/2010
7632907Polyethylene film having improved mechanical and barrier properties and method of making same
A polyethylene film comprising a polymer composition having the characteristics of a total energy dart drop, measured in accordance with ASTM D4272, of greater than a bout 0.45 ft.lbf, a dart drop impact strength, measured in accordance with ASTM D1709 Method A, of ...
12/15/2009
7625982Multimodal polyethylene compositions and pipe made from same
A multimodal polyethylene composition having at least two polyethylene components, wherein each component has a molecular weight distribution of equal to or less than about 5, one component has a higher molecular weight than the other component, and the higher molec...
12/01/2009
7615510Methods of activating chromium catalysts
New methods for activating chromium catalysts for polymerization processes decrease the amount of time required for activation and increase catalyst activity. Rapid heating to a first temperature is followed by a first hold period before heating to a higher second t...
11/10/2009
7589162Polyethylene compositions and pipe made from same
A polymer composition comprising a density equal to or greater than about 0.947 g/cc, a high load melt index from about 1 g/10 min to about 30 g/10 min, and a tensile natural draw ratio less than about 14167 ρ-12958, where ρ is the density (g/cc) of the compositio...
09/15/2009
7589044Methods of preparing a polymerization catalyst
A method comprising contacting a donor support with a recipient support to generate a mixture, and heating the mixture to produce a polymerization catalyst, wherein a metal or a metal-containing compound migrates from the donor support to the recipient support. A me...
09/15/2009
7420010Polyethylene compositions
Polymeric compositions and methods of making same having improved coefficient of friction and blocking properties. The polymeric compositions include a linear low density polyethylene with additives such as a fluoroelastomer and an acid scavenger. The polymeric comp...
09/02/2008
7307133Polymers having broad molecular weight distributions and methods of making the same
Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Usi...
12/11/2007
7241620Ultra high molecular weight polyethylene fractions having narrow molecular weight distributions and methods of making and using the same
Polymer fractions such as polyethylene fractions can be produced that have a PDI less than about 2.3 and a Mw greater than about 1,000,000 g/mol, 3,000,000 g/mol, or 6,000,000 g/mol. Such polyethylene fractions are separated from a UHMWPE parent polymer b...
07/10/2007
7230128Organometallic fluorenyl compounds, preparations, and use
Fluorenyl-containing metallocenes are disclosed along with methods for making the metallocenes. Also disclosed are methods for using the metallocenes as polymerization catalysts. In addition, polymers resulting from such polymerizations are disclosed. ...
06/12/2007
7214642Methods of preparing active chromium/alumina catalysts via treatment with sulfate
Methods of preparing a polymerization catalyst are provided that include contacting a support comprising alumina with a sulfating agent and with chromium. In an embodiment in which the chromium is provided from a chromium compound such as chromium oxide, the support...
05/08/2007
7208441Polymerization catalyst systems and processes therefor and therewith
A copolymer of ethylene and a higher alpha olefin, preferably 1-hexene, can be produced using an activated chromium containing catalyst system and a cocatalyst selected from the group consisting of trialkylboron, trialkylsiloxyalutninum, and a combination of trialky...
04/24/2007
7179854Phosphite additives in polyolefins
A polyolfin composition having high resistance to degradation is formed of at least one polyolefin component, bis(2,4dicumylphenyl)pentaerythritol diphosphite, triisopropanolamine, a hydrotalcite component, and at least one phenol component. ...
02/20/2007
7112643Polymers having low levels of long chain branching and methods of making the same
Methods of producing a polymer include contacting at least one olefin with a catalyst prepared by contacting a support comprising alumina with a sulfating agent and with chromium. Polymer compositions produced in this manner may exhibit relatively low levels of long...
09/26/2006
6977235Catalyst systems comprising a calcined chromium catalyst and a non-transition metal cyclopentadienyl cocatalyst
According to an embodiment, catalyst systems for polymerizing olefins include a catalyst comprising chromium and a cocatalyst comprising a substituted or unsubstituted non-transition metal cyclopentadienyl compound (Cp). The catalyst also comprises an inorganic oxid...
12/20/2005
 
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