Owens Corning Fiberglas Technology, Inc.

Ocv Intellectual Capital, LLC

Owens-corning Fiberglass Technology, Inc.

Owens-corning Technology, Inc.

Ocv Intellectual Captial, LLC

William G Hager

Jay Joseph Beckman

Leonard Joseph Adzima

Paul R Krumlauf

Diane Marie Hulett

Edward L Wilson

Michael A Strait

Timothy W Ramey

Martin C Flautt

Liang Chen

Jay W Hinze

James V Gauchel

John R Green

Kevin Guigley

David D Hokens

Teresa Wagner

John D Rinehart

Brian William Ables

Jeff L Antle

A powder coated roving material for making structural parts is provided. The powder coated roving includes a bundle of fibers at least substantially coated with a powder coating material. The bundle is formed of a plurality of inner fibers and a plurality of outer fibers surrounding the inner fibers. The size composition maintains the fibers in a bundled orientation during processing and releases the fibers during molding. The size composition includes an epoxy resin emulsion containing at least one surfactant and a solid epoxy resin having an epoxy equivalent weight from about 450 to about 950, at least one epoxy silane coupling agent, at least one non-ionic lubricant, at least one cationic lubricant, and at least one organic acid. In addition, the size composition may have an acetone solubility from about 30% to about 75%. A method of making a composite roving is also provided.

Powder coated roving for making structural composites

A polymer composite multiend roving material used to make structural composite parts includes a bundle of fibers held together by a high integrity sizing composition and surrounded by a powder coating polymer material. The powder coating material is approximately 10-80% of the dry weight of the multiend composite roving weight. The multiend composite roving material may then be easily processed further to form a molded composite part having good mechanical properties and high fiber content.

Powder coated roving for making structural composite

A sizing composition containing an epoxy resin emulsion, one or more coupling agents, a cationic lubricant, and an acid. The epoxy resin emulsion includes a low molecular weight epoxy and one or more surfactants. The epoxy resin has an epoxy equivalent weight of from 175-225, preferably from 175-190. Optionally, the sizing composition may also contain a non-ionic lubricant, a polyurethane film former, and/or an antistatic agent. The sizing composition may be used to size glass fibers used in filament winding applications to form reinforced composite articles with improved mechanical properties, wet tensile properties, improved resistance to cracking, and improved processing characteristics.

Epoxy sizing composition for filament winding

A fiberglass insulation binder composition made from a polycarboxy polymer, a polyhydroxy crosslinking agent, and a cationic surfactant, amphoteric surfactant, nonionic surfactant, or mixture thereof. Also, a process for manufacturing a fiberglass insulation product, which involves a step of applying the binder composition onto a fiberglass substrate and curing the fiberglass substrate so treated. Binders produced in accordance with the present invention are characterized by improved atomization, improved binder dispersion and fiber wetting properties, and improved protection of individual fibers during processing.

Surfactant-containing insulation binder

A string binder is disclosed which is useful for making reinforcing articles for use in the manufacture of molded composite articles. The string binder comprises a fibrous carrier substrate covered with a solidified coating comprising a binder resin material having an acid value of less than about 30 mg KOH/g of resin. Additionally, the fibrous carrier substrate may be coated with at least one layer of a pre-coating or post-coating comprising a catalyst composition. The string binder may be co-roved with one or more ends of a separate fibrous reinforcing material to make a product suitable for use in various molding applications.

String binders and method for making same

A string binder is disclosed which is useful for making reinforcing articles for use in the manufacture of molded composite articles. The string binder comprises a fibrous substrate with a chemical treatment, applied thereto, comprising an epoxy film former, a curing agent, a thickener, and water. Additionally, the string binder may be co-roved with one or more ends of a separate fibrous pre-form material to make a product suitable for use in various molding applications.

Epoxy film former string binder

A string binder is disclosed which is useful for making reinforcing articles for use in the manufacture of molded composite articles. The string binder, in one embodiment, comprises a fibrous carrier substrate material covered with a solidified coating comprising a binder resin material having an acid value of less than about 30 mg KOH/g of resin. Additionally, the coating may include a catalyst applied as a separate layer or in combination with the binder resin material. The string binder may be co-roved with one or more ends of a separate fibrous reinforcing material to make a product suitable for use in various molding applications.

String binders

A string binder is disclosed which is useful for making reinforcing articles for use in the manufacture of molded composite articles. The string binder, in one embodiment, includes a fibrous carrier substrate material covered with a solidified coating comprising a binder resin material having an acid value of less than about 30 mg KOH/g of resin. Additionally, the coating may include a catalyst applied as a separate layer or in combination with the binder resin material. The string binder may be co-roved with one or more ends of a separate fibrous reinforcing material to make a product suitable for use in various molding applications.

A sheet molding composition is provided which exhibits controllable thickening. The composition includes a low molecular weight polyester in which some of the chain ends have been endcapped with functional groups which are unable to react with the thickeners employed in the sheet molding composition. The sheet molding composition has a low viscosity of from about 6 to about 20 million centipoise which allows molding at low pressures of from about 100 to about 300 psi.

Sheet molding composition having controllable thickening

This development relates to elastomer modified polyester for sheet molding compound (SMC). This development copolymerizes the rubber with the polyester. The reaction provides copolymers with extended storage times without phase separation. It also enhances impact resistance of the molded part.

Elastomer modified polyester SMC

This development provides crystalline unsaturated polyesters having unreacted olefinically unsaturated monomer entrapped within its crystal lattice. The crystalline polyester can be used in high performance, structural SMC products or as a size or binder for glass fiber reinforcements or mats.

Crystalline polyesters

This development provides glycidyl-acrylates that, when copolymerized with unsaturated polyesters, provide high performance, structural SMC products. The acrylates increase the reactivity of the polyesters. One result has been 'zero shrinkage' parts with good heat distortion, pigmentability and excellent mechanical and physical properties.

Growing community of inventors

Westerville, OH, United States of America

William G Hager