Uop Lcc

Rohm and Haas Company

Osi Specialties, Inc.

Donald McLeod, Jr

Edith M Flanigen

Peter K Coughlin

Michael Paul Hallden-Abberton

James S Ritscher

William C Mercer

Scot M Turner

Flexible composites, such as those useful as light pipes, may be effectively cured by reactions upon copolymerized alkoxysilane functionality. Improvements in the optical properties of the uncured and cured systems are found when the alkoxysilane monomer is stabilized during preparation, storage, and copolymerization with low levels of non-aromatic stable free radicals or stable free-radical precursors, such as nitroxides.

Cured composite and process therefor

The present invention describes a method for inhibiting the polymerization of unsaturated silanes by the addition of a non-aromatic stable free radical during any of the steps of the formation of the desired silane, the purification of the desired silane, and to the desired silanes, as well as compositions of the inhibitors and the silanes. Particular classes of silanes to be inhibited include acryloxy-, methacryloxy-, and vinyl- functional silanes. The free radicals for use as inhibitors include various nitroxides. The free radicals taught herein are effective as inhibitors at elevated temperatures, for extended periods of time, and even in the absence of molecular oxygen.

Stabilizers for unsaturated, polymerizable organosilicon compounds

A moisture sensing element is disclosed which comprises an electrically continuous article comprising an inorganic crystalline composition selected from the group consisting of zeolite molecular sieves in which the molar ratio of silica to alumina is greater than 6, silica molecular sieves, non-zeolitic molecular sieves and mixtures thereof; and two electrodes affixed to the article at different locations in current carrying relationship so that the current between the two electrodes passes through at least a portion of the inorganic crystalline composition.

Moisture sensing apparatus and method

A moisture sensing element is disclosed which comprises an electrically continuous article comprising a multi-compositional, multi-phase composite composition comprising as phases thereof (i) an electrically conducting or semiconducting substrate, (ii) an inorganic oxide composition layer in proximity to at least a portion of the surface of the electrically conducting or semiconducting substrate and (iii) an inorganic crystalline molecular sleeve composition layer upon at least a portion of the surface of the inorganic oxide composition layer, wherein the different phases of the composite composition are substantially contiguous and exhibit at least one of a distinct compositional heterogeneity and a distinct structural heterogeneity of one phase to the other; and at least one electrode affixed to the article in current carrying relationship so that the current carried by the electrode passes through at least a portion of the inorganic crystalline molecular sieve composition layer.

Growing community of inventors

Briarcliff Manor, NY, United States of America

Donald McLeod, Jr