Johns Manville

Schuller International, Inc.

Jon Frederick Bauer

Foster Laverne Harding

Xiaojie Xu

Harry Hand Russell, Iii

Susan McMillin Gee

Kevin Dean Schaal

Ralph Michael Fay

William Henry Kielmeyer

Michael D Peterson

Jeffrey M Shock

Stephen Edward Gross

Jeffrey Canon Townsend

Kurt A Lintelmann

The subject invention is directed to a method for producing a pre-reacted clinker used in the manufacture of E glass. The clinker is fed into an E glass furnace, and melts down into a finished E glass product at high efficiencies and short production times. The clinker allows glass to be produced at a lower cost as compared with known methods.

Use of pre-reacted cements as raw material for glass production and the manufacture of fiber therefrom

A process for making a glass product with reduced greenhouse gas emission, comprising: providing a raw material composition comprising at least one silicon dioxide or silicon dioxide-containing compound and at least one pre-reacted compound, wherein the pre-reacted compound comprises an atom of an alkaline earth metal chemically bonded to an oxygen atom, and a silicon atom chemically bonded to the oxygen atom; melting the raw material composition to produce a molten material; and forming the molten material into a glass product.

Composition and method of making a glass product with reduced greenhouse gas emission

The subject invention is directed to a method for producing a raw material or materials that can be used by themselves or in combination with other ingredients to make glass of high quality at high efficiencies and short production times. The raw materials are capable of high reactivity in a glass melting furnace and therefore will allow glass to be produced either at lower temperatures or shorter residence times at the same temperatures as compared with known methods.

Method for producing reactive raw material for manufacture of glass suitable fiberization

An effective process for removing organic coatings and binders from glass fiber surfaces in a manner that is both environmentally friendly and does not comprise the integrity or physical properties of the fiber.

Process for recycling glass fiber

Provided is a range of glass compositions and glass fiber products made therefrom that show a unique combination of properties for both discontinuous fiber manufacturing and end use service. The glass compositions are particularly useful in high volume, high throughput, economical processes such as rotary spinning.

Glass compositions for fiber formation

Provided are glass compositions uniquely applicable for the preparation of ultrafine fibers for filtration and separation applications. The glasses meet all physical and chemical criteria, including that for biodissolution rate. In particular, the glasses exhibit good moisture resistance in combination with excellent biosolubility, allowing for storage of products under humid conditions and degradation at a high rate in the body if inhaled.

Glass compositions for ultrafine fiber formation

Provided are glass compositions uniquely applicable for the preparation of ultrafine fibers for filtration and separation applications. The glasses meet all physical and chemical criteria, including that for biodissolution rate.

Glass compositions for ultrafine fiber information

Glass composition for ultrafine fiber formation

Glass fibers prepared by flame attenuation display excellent chemical resistance to both acids and moisture while being highly biosoluble at the same time. The glass compositions are characterized by ratios of components which are reflective of acid resistance, biosolubility, and moisture resistance. Preferred glass fibers exhibit a biodissolution greater than about 350 ng/cm/ hr.

Flame attenuated fiberglass

An insulation product especially suited for use as an aircraft insulation includes a blanket of randomly oriented entangled glass fibers bonded together by a thermosetting binder and having a mean diameter of about 1&plus;/&minus;0.25 microns. The blanket has a density between about 0.25 and about 1.5 pounds per cubic foot and a thickness between about 0.35 inches and about 2.0 inches. The blanket, exclusive of anything else, has an average machine direction tensile strength of at least 0.6 pounds/inch of blanket width and an average cross machine direction tensile strength of at least 0.3 pounds/inch of blanket length; a transverse airflow resistance between about 300 Rayls and about 1800 Rayls; and a thermal conductivity equal to or less than about 0.32 BTU-in/hr-ft,-&deg; F. The glass fibers of the blanket have a biodissolution rate in excess of 150 ng/cm,/hr.

Lightweight glass fiber insulation

Novel boron-free glass compositions are described which are particularly suited for making fine diameter glass fibers for HEPA electronic clean-room filtration media using flame-attenuation or rotary glass processing.

Boron-free glass composition and filtration media

Described is an inorganic fiber comprising silica dioxide, calcium oxide, and alkali oxide having a free energy of hydration greater than (more positive than) -5.00 kcal/mol, an enthalpy of formation less than (more than negative than) -210.0 kcal/mol, a dissolution rate in simulated extra cellular fluid greater than 750 (calculated as nanograms of fiber/per square centimeter of fiber surface area/per hour) having an average fiber diameter not greater than 4.5 micrometers. Also described is a method of manufacturing the fibers.

Glass fiber composition with improved biosolubility

Glass fibers of curly habit may be prepared from a heterogeneous melt of blended particles of at least two distinct glasses. Linear glass primaries controllable in pot and marble processing may be prepared from the heterogeneous melts. Fibers prepared from the randomly heterogeneous primaries exhibit a unique biodissolution mechanism and high biodissolution rates. The process is also amenable to other glass fiberization processes, including the rotary process and the sliver process.

Non-linear multicomponent glass fibers from linear primaries

Glass compositions suitable for pot and marble fiberization display excellent chemical resistance to both acids and moisture while being highly biosoluble at the same time. The glass compositions are characterized by ratios of components which are reflective of acid resistance, biosolubility, and moisture resistance. Preferred glasses have a difference between HTV (10.sup.3 poise) and liquidus greater than 500.degree. F., and a biodissolution greater than about 350 ng/cm.sup.2 /hr.

Growing community of inventors

Castle Rock, CO, United States of America

Jon Frederick Bauer