Ppg Industries, Inc.

Ppg Industries Ohio, Inc.

Robert B Hodek

Jerome A Seiner

William R Siskos

Albert E Thompson, Jr

Stephen C Misera

Thomas Patrick Kerr

James E Jones

James A Meier

A method of fabricating an insulating unit includes the steps of: providing a pair of sheets and a substrate; forming the substrate into at least one spacer section having a base and a pair of outer legs connected to the base, the spacer section having a surface designated as a supporting surface; providing a bead on the supporting surface, the bead provided on the supporting surface includes a moisture pervious adhesive having a desiccant therein and assembling a spacer frame that includes the at least one spacer section and the sheets provide an insulating unit having the pair of sheets in a fixed relationship.

Method of making an insulating unit having a low thermal conducting spacer

An insulating unit has a pair of glass sheets about an edge assembly to provide a compartment between the sheets. The edge assembly has a U-shaped spacer made of metal, metal coated plastic, gas and moisture impervious polymer, or gas and moisture impervious film coated polymer. The outer legs of the spacer and the glass provide a long diffusion path to limit the diffusion of argon gas out of the compartment. The edge assembly has materials selected and sized to provide edge assembly having an RES-value of at least 75. A spacer for use in insulating units includes a plastic core having a gas impervious film e.g. a metal film or a halogenated polymer film. Also taught herein are techniques for making the unit and spacer.

Low thermal conducting spacer assembly for an insulating glazing unit

An improved multiple glazed unit including a pair of glass sheets maintained in spaced-apart relationship to each other by a spacer element to provide an airspace therebetween and a sealing element to hermetically seal the airspace, is characterized by a spacer element containing a dehydrating material and an unplasticized polymeric material which is the reaction product of a polyisocyanate and an active hydrogen containing material; and a sealing element containing an unplasticized polymeric material which is the reaction product of a polyisocyanate and an active hydrogen containing material; the polymeric material of the spacer element having a moisture vapor transmission rating which is greater than that of the polymeric material of the sealing element.

Multiple pane unit having a flexible spacing and sealing assembly

A process for the preparation of a pulverulent organomagnesium compound involves bringing together into intimate admixture a particulate hydroxyl functional material with an organomagnesium-containing material. The process is conducted at a temperature below the melting point of the hydroxyl functional material but at a temperature sufficient to convert at least a portion of the hydroxyl functional material to the pulverulent organomagnesium compound. The aforesaid organomagnesium compounds are useful as intermediates in generating anionic sites for anionic polymerization.

Process for the preparation of an organomagnesium compound

An improved method of molding involves utilizing as the catalyst and initiator components of a polymerizable composition, a Grignard catalyst and a dual initiator system.

A method of molding polymerizable composition comprising lactam monomer,

An improved process for the preparation of a lactam-magnesium compound which involves bringing into intimate admixture a lactam monomer represented by the following structural formula: ##STR1## wherein Y is an alkylene group having from 3 to 12 carbon atoms, in particulate form, and an organomagnesium-containing material. The process is carried out at a temperature below the melting point of the lactam monomer but at a temperature sufficient to convert at least a portion of the lactam monomer to said lactam-magnesium compound in pulverulent form. The lactam-magnesium compound is useful as a catalyst for anionic lactam polymerization.

Process for the preparation of a catalyst useful for anionic lactam

A catalyst and initiator composition for lactam polymerization is composed of a Grignard catalyst for lactam polymerization and initiator system containing

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Gibsonia, PA, United States of America

Robert B Hodek