3m Innovative Properties Company

Schlumberger Technology Corporation

Schlumberger Canada Limited

Ignatius A Kadoma

Michael D Crandall

Yong K Wu

James G Carlson

William Ward Merrill

Michael R Berrigan

Jeffrey P Kalish

David B Olson

Ramesh C Kumar

Dean Michael Willberg

Kanta Kumar

Jacob D Young

Gary E Gaides

Sonja S Mackey

Randy A Larson

Adam R Wohl

Anita R Sykora

Rudolf J Dams

Patrick R Fleming

Stephen M Sanocki

Manoj Nirmal

David J Kinning

Clayton Allen George

James D Carlson

Thomas R Corrigan

Derek J Dehn

John D Stelter

Jay M Jennen

Zhiqun Zhang

Matt R Branscomb

Mitchell A F Johnson

Pamela A Percha

Mary L Brown

Jimmy Minh Le

Bryan L Gerhardt

Liming Song

Bradley L Givot

Daniel J Zillig

Yaohua Gao

Siegmund Papp

Kimberly C M Schultz

Sasha B Myers

Clara E Mata

Zackary J Becker

Andrew J Peterson

Michelle M Hewitt

Steven L Mahoney

Charles E Jansen

Stewart W Campbell

Elizabeth R Bright

Jeffrey E Zelinsky

David M Peterson

Andrew J Witte

Conformable sheet article made from paper and useful, for example, in packaging, tapes, and craft article, and methods of making and using such sheet articles are disclosed.

Conformable sheet articles, constructions, and methods of using the same

The present disclosure relates to multi-layer composite articles including at least two nonwoven web layers. Each or the layers may be a spunbonded web, and each may include biodegradable materials. The multi-layered composites of the present disclosure are particularly well suited for air filtration, as they can combine a high dust holding capacity with sufficient strength, dimensional stability, and a relatively low pressure drop.

Multi-layer, biodegradable composites for air filtration

Compositions and films are described comprising a polylactic (PLA) polymer and a copolymer comprising a first moiety comprising a C12-C30 alkyl group and a second moiety that is miscible in the composition. Suitable first moieties include a C12-C30 alkyl (meth)acrylate or a polyvinyl alcohol comprising pendent C12-C30 alkyl groups. Suitable second moieties include C1-C10 (meth)acrylic acid or ester thereof, vinyl acetate and ethylene vinyl acetate. The aforementioned composition may be used to form a release layer of an adhesive article such as a pressure sensitive adhesive tape. The films may be a monolithic film or a film layer of a multilayer film. The release layer may be disposed upon a substrate layer that may also comprise PLA. The films are produced by melt extrusion of the aforementioned composition and may be oriented.

Composition and films comprising polylactic acid polymer and copolymer comprising long chain alkyl moiety

An article comprising hollow ceramic microspheres and multi-component fibers is disclosed. The multi-component fibers are adhered together, and the hollow ceramic microspheres are adhered to external surfaces of the multi-component fibers. A method of making the article and use of the article for insulation are also disclosed.

Article including multi-component fibers and hollow ceramic microspheres and methods of making and using the same

A method of making an adhesive article is described comprising melt extruding a core film layer comprising a composition comprising at least 50% of a polylactic acid polymer. The method further comprises melt extruding an adhesive layer on a major surface of the core film layer such that regions of interdiffusion are present between the core film layer and adhesive layer. The adhesive layer may comprise C1-C10 (meth)acrylic acid or ester thereof, vinyl acetate, ethylene vinyl acetate, hydrolysed polyvinyl alcohol and combinations thereof. The adhesive layer may also be a pressure sensitive adhesive. The method further comprises melt extruding a release film layer on an opposing major surface of the core film layer. The layers are sequentially extruded or co-extruded and can be uniaxially or biaxially oriented. Articles comprising a core film layer comprising a composition comprising at least 50% of a polylactic acid polymer and an adhesive layer disposed on a major surface of the core layer are also described.

Adhesive articles comprising polylactic acid polymer film and method of making

A multilayer film comprises (a) two or more non-plasticized layers comprising lactic acid polymer and (b) one or more plasticized layers comprising lactic acid polymer and plasticizer sandwiched between the two or more lactic acid polymer layers; wherein the thickness of the one or more plasticized layers comprises from about 60% to about 70% of the total thickness of the multilayer film.

Lactic acid polymer films

In one embodiment, a film is described comprising a mixture of semicrystalline polylactic acid polymer; polyvinyl acetate polymer having a glass transition temperature (Tg) midpoint as measured by differential scanning calorimetry of at least 25&#xb0; C.; and plasticizer; wherein the film is oriented. In another embodiment, a film is described comprising a mixture comprising semicrystalline polylactic acid polymer, polymer having a midpoint Tg as measured by differential scanning calorimetry of at least 25&#xb0; C., and plasticizer; wherein the mixture exhibits a single midpoint Tg and the single midpoint Tg ranges from 40&#xb0; C. to 65&#xb0; C.; and wherein the film is oriented and the oriented film exhibits a higher midpoint Tg ranging from 40&#xb0; C. to 65&#xb0; C. and a lower midpoint Tg ranging from 5 to 25&#xb0; C.

Oriented polylactic acid polymer based film

Fibers comprising a first thermoplastic composition having a softening temperature up to 120&#xb0; C and a curable resin. Also disclosed are compositions comprising a plurality of fibers, with some of the fibers comprising a first thermoplastic composition having a softening temperature up to 120&#xb0; C and some of the fibers comprising a curable resin. The fibers have an aspect ratio of at least 2:1 and a maximum cross-sectional dimension up to 60 micrometers. Fluid compositions containing the fibers and methods of contacting a subterranean formation using the fibers are also disclosed.

Curable fiber

There is provided a controlled degradation fiber and methods of making such controlled degradation fiber, wherein at least one first material and at least one second material are selected such that the fiber has a weight loss of greater than 6 wt. % and less than 60 wt. % based on the total weight of the fiber after one week at 130&#xb0; C. in the presence of water.

Controlled degradation fibers

A plurality of solid particles including a thermoplastic composition having a softening temperature in a range from 50&#xb0; C. to 180&#xb0; C. and a blocked isocyanate resin; optionally at least some of the particles in the plurality of solid particles comprise both the thermoplastic composition and the blocked isocyanate resin. A composition comprising the plurality of particles dispersed in a fluid is also disclosed. A method of modifying a wellbore within a geological formation is also disclosed. The method includes introducing the fluid composition into the wellbore. A method of making a plurality of particles, for example, to use in the fluid composition, is also disclosed.

Particles comprising blocked isocyanate resin and method of modifying a wellbore using the same

Compositions comprising a proppant core having an outer surface and polymeric microspheres attached to at least a portion of the outer surface are described. The compositions are useful, for example, to increase the productivity of a hydrocarbon oil or gas bearing well.

Proppants and uses thereof

Fiber aggregate comprising organic polymeric fibers, wherein the organic polymeric fibers have an average length in a range from 2 to 20 millimeters, an average diameter up to 100 micrometer, and comprise at least 75 percent by solid volume of the fiber aggregate, wherein the fiber aggregate has an unrestrained bulk density of at least 0.05 g/cm, and wherein at least 85% by volume of the fiber aggregate disassociates to provide dispersed fibers. The fiber aggregates are useful, for example, for flowback control in wellbores and reservoirs.

Fiber aggregate

Fluid compositions and methods of making and using same are described, one composition comprising a well treatment fluid and an additive combined with the well treatment fluid, wherein the additive is selected from solids, liquids and combinations thereof, the additive having a surface shape, at least one property of the surface shape enabling it to change under influence of a controllable parameter after the composition is deployed into a hydraulic fracture or gravel pack. In methods of the disclosure, the additive exists initially in a first state, and then is changed to a second state. The first state may increase proppant flowback efficiency, while the second state may increase hydraulic conductivity. In certain embodiments, the additive may change back to its first state.

Methods of treating subterranean wells using changeable additives

Light-collimating films as well as other microstructured film articles are described that comprise a (e.g. UV) cured light transmissive film comprising the reaction product of a polymerizable resin composition. Polymerizable resin compositions are also described that comprise aliphatic urethane (meth)acrylate oligomer(s), bisphenol-A ethoxylated diacrylate(s), and a crosslinker having at least three (meth)acrylate groups.

Light collimating film

Light-collimating films as well as other microstructured film articles are described that comprise a (e.g. UV) cured light transmissive film comprising the reaction product of a polymerizable resin composition. Polymerizable resin compositions are also described that comprise aliphatic urethane(meth)acrylate oligomer(s), bisphenol-A ethoxylated diacrylate(s), and a crosslinker having at least three (meth)acrylate groups.

Light-collimating film

Growing community of inventors

Cottage Grove, MN, United States of America

Ignatius A Kadoma