Si Group, Inc.

Huttenes-albertus Chemische Werke Gmbh

Milan Knezevic

Timothy Edward Banach

John Morgan Whitney

Robert A Laitar

Marek A Torbus

Todd Scott Makenzie

Nicolas Egeler

Leigh Scott Howard

Wolfgang Seelbach

Douglas M Trinowski

Gee Ho Bae

Dominic Maxwell Pearsall

Mark Edward Siudy

Robert Laitar

Douglas Trinowski

The invention relates to a process for improving the stability of a base-modified alkylphenol-aldehyde resin (such as an amine-modified alkylphenol-aldehyde resin). The process comprises the step of reacting a base-modified alkylphenol-aldehyde resin with a salicylic acid to stabilize the base-modified alkylphenol-aldehyde resin. The invention also relates to a modified alkylphenol-aldehyde resin formed from the stabilizing process, and its use in a tackifier composition and rubber composition.

Modified alkylphenol-aldehyde resins stabilized by a salicylic acid

This invention relates to a resin preparable by reaction of a phenol/formaldehyde novolak with tetraethyl orthosilicate in a mass ratio above 28:1, wherein the phenol of the phenol/formaldehyde novolak is substituted or unsubstituted hydroxybenzene or a mixture of two or more such phenols, and to a particulate material coated with said resin. Said particles can be used e.g. in the shell molding process for the production of shell molds and shell cores; and as proppants for use in the hydraulic fracturing process.

Silicic ester modified phenol/formaldehyde novolaks and their use for the production of resin coated substrates

The invention is related to a hydrocarbylphenol-formaldehyde linear novolak resin modified with a vinyl monomer. A modified, hydrocarbylphenol-formaldehyde linear novolak resin of the invention is prepared by reacting a hydrocarbyl phenol-formaldehyde linear novolak resin with a vinyl monomer in the presence of an acid catalyst. The invention also relates to a rubber compositions with improved tack comprising a rubber or mixture of rubbers, and the modified, hydrocarbylphenol-formaldehyde linear novolak resin.

Modified novolak resin for use as tackifier

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Niskayuna, NY, United States of America

Milan Knezevic