Saint-gobain Abrasives, Inc.

Saint-gobain Abrasifs

Owens Corning Intellectual Capital, LLC

Ocv Intellectual Capital, LLC

Jianhui Wu

Srinivasan Ramanath

Eric M Schulz

Richard W J Hall

Ramanujam Vedantham

Taewook Hwang

Thomas Puthanangady

Charles Dinh-Ngoc

Jeff Pessell

Gilles Querel

Kevin Spoo

Weigang Qi

David R Hartman

Richard W Hall

Guohua Zhang

Zach Cudzilo

Scott Eaton

William Sorsby

Shane M Polen

Benjamin J Kowalski

Paul Aubrey Klett

David Hartman

A composite nonwoven mat and a method of making a composite nonwoven mat are provided. The composite nonwoven mat includes a nonwoven base layer having a first surface and a second surface, and a polymer layer formed on and adhered to the first surface of the nonwoven base layer. The polymer layer extends partially into the nonwoven base layer. The composite nonwoven mat has an average Gurley porosity of at least 2,000 seconds.

Composite nonwoven mat and method of making the same

A nonwoven mat and a method of making a nonwoven mat are provided. The nonwoven mat includes reinforcing fibers and a binder composition that includes a polycarboxy polymer and polymer microspheres. The binder composition may also include low-density fibers, such as microfibrillated cellulose fibers. The polymer microspheres have a thermoplastic shell that encapsulates a blowing agent. The thermoplastic shell has magnesium hydroxide on its outer surface. The components of the binder composition interact with one another and/or the reinforcing fibers to form a nonwoven mat having a less permeable structure and a higher caliper.

Nonwoven mat with reduced permeability and increased caliper

A non-woven chopped fiber mat includes a mixture of glass fibers and synthetic fibers. The non-woven mat is formed using a binder composition that includes a binder resin, a coupling agent, and a corrosion inhibitor. The non-woven mat is non-corrosive and resistant to volatile unsaturated monomers such as styrene, but still remains fully compatible with solvent-containing polyester resins, such that it can be used in various pultruded products.

Corrosion-resistant non-woven for pipe liner pultrusion applications

A binder composition for use in the manufacture of a nonwoven mat including a low-density fiber, and nonwoven mats made with the binder, are disclosed. The low-density fiber is able to reduce the acoustic openness of the nonwoven mats made therefrom while also capable of being delivered with existing binder technology and equipment.

Glass fiber mat with low-density fibers

An abrasive tool including a CMP pad conditioner having a substrate including a first major surface, a second major surface opposite the first major surface, and a side surface extending between the first major surface and the second major, wherein a first layer of abrasive grains is attached to the first major surface and a second layer of abrasive grains is attached to the second major surface. The conditioner further includes a first sealing member extending in a peripheral direction along a portion of the side surface of the substrate.

Abrasive tool for use as a chemical mechanical planarization pad conditioner

A chemical mechanical polishing (CMP) conditioner includes a ceramic substrate having a major surface, and an abrasive coating overlying the major surface. The major surface can include micro-protrusions arranged in a curved pattern. Alternatively, the micro-protrusions can be arranged in an irregular pattern.

Chemical mechanical polishing conditioner

An abrasive tool for conditioning CMP pads includes abrasive grains coupled to a substrate through a metal bond and a coating, e.g., a fluorine-doped nanocomposite coating. The abrasive grains can be arranged in a self-avoiding random distribution. In one implementation, an abrasive tool includes a coated plate and a coated abrasive article that has two abrading surfaces. Other implementations related to a process for producing an abrasive tool that includes a coating at one or more of its surfaces. Also described are methods for dressing a CMP pad.

Corrosion-resistant CMP conditioning tools and methods for making and using same

A CMP pad conditioner including a substrate having a transparency window represented by an average internal transmittance of not less than about 90% over a wavelength range extending from about 400 nm to about 500 nm along a path length extending through the substrate of not less than about 10 mm a bonding layer overlying a surface of the substrate, and abrasive grains contained within the bonding layer.

Chemical mechanical planarization pad conditioner and method of forming

An abrasive tool with flat and consistent surface topography for conditioning a CMP pad and method for making are disclosed. The abrasive tool includes abrasive grains coupled to a low coefficient of thermal expansion (CTE) substrate through a metal bond. There is an overall CTE mismatch that ranges from about 0.1 &#x3bc;m/m-&#xb0; C. to about 5.0 &#x3bc;m/m-&#xb0; C. The overall CTE mismatch is the difference between the CTE mismatch of the abrasive grains and the metal bond and the CTE mismatch of the low CTE substrate and the metal bond.

Abrasive tool with flat and consistent surface topography for conditioning a CMP pad and method for making

An abrasive tool including a bonded abrasive article including a bond material comprising a metal or metal alloy, abrasive grains contained within the bond material, and a reaction agent dispersed within the bond material, wherein the reaction agent chemically reacting with a surface of the workpiece during abrasion to form a reaction product.

Bonded abrasive article and method of use

A method of forming an abrasive article includes forming a mixture comprising a liquid carrier and a glass precursor material, wherein the glass precursor material comprises a material selected from the group of materials consisting of a hydrated metal compound, an organic silicate compound, or a combination thereof. The method further includes providing abrasive grains within the mixture, forming the mixture into a green ceramic body, and heating the green ceramic body to form a bonded abrasive article comprising the abrasive grains contained within a bond matrix, wherein the bond matrix comprises an amorphous phase formed from the glass precursor material.

Bonded abrasive articles and methods of forming

A CMP pad conditioner is provided that includes a substrate having a surface and three dimensional structures protruding relative to the surface of the substrate. The three dimensional structures include CVD carbon-containing material selected from the group consisting of carbon nanotubes and diamond, and may be arranged in a ordered array or desired pattern. The CMP pad conditioner also includes a bonding layer overlying the three dimensional structures and the surface of the substrate. The condition may include a reinforcing layer disposed within gaps between the three dimensional structures. Techniques for manufacture and use are also disclosed.

Growing community of inventors

Westborough, MA, United States of America

Jianhui Wu