National Starch and Chemical Investment Holding Corporation

Henkel Ag & Company, Kgaa

James W Nowicki

Ju-Ming Hung

Rose Ann Schultz

Peter J Schlom

Brian S Huffman

Paul P Puletti

Arthur B Pruiksma

Robert C Schmidt, Jr

Francis X Brady

Michael C Colucci

James N O'Leary

Robert S Wallach

Michael T Gefri

George A Hespe

Materials and methods are provided to quickly and conveniently conceal drywall seams, corner joints and nail and screw holes or other imperfections in drywall material.

Product and method for concealing joints

The present invention is directed to nitrile-oxide precursor compounds, and their preparation and use as an irreversible cross-linking agent in polymers having appropriate functionality, i.e., alkenes, alkynes nitriles, and isocyanates. The present invention is also directed to the use of nitrile oxide compound in filled or unfilled applications such as pressure sensitive adhesives, reactive hot melts, polyurethane dispersions, thermosetting adhesives, thermoplastic adhesives or coatings.

Reagents for heat activated polymer crosslinking

A curable casemaking adhesive, books and related articles bound thereby. In one embodiment, a UV curable hot melt adhesive is used to form the case, which is preferably also embossed. In another embodiment, a moisture curable hot melt adhesive is used to form the case, which is preferably also embossed.

Curable hot melt adhesive for casemaking

The present invention is directed to nitrile-oxide precursor compounds, and their preparation and use as an irreversible cross-linking agent in polymers having appropriate functionality, i.e., alkenes, alkynes nitrites, and isocyanates. The present invention is also directed to the use of nitrile oxide compound in filled or unfilled applications such as pressure sensitive adhesives, reactive hot melts, polyurethane dispersions, thermosetting adhesives, thermoplastic adhesives or coatings.

The subject invention provides reactive hot melt adhesive compositions comprising polyurethane prepolymers which have an isocyanate index greater than one and which are prepared from a low hydroxyl number composition comprising high molecular weight polyester diols which have a relatively low melting point. These reactive hot melt adhesive compositions have a faster setting speed than conventional reactive hot melt adhesive compositions. The subject invention also provides a method for bonding articles together which uses such reactive hot melt adhesive compositions and articles which comprise the reactive hot melt adhesive compositions.

Fast setting polyurethane hot melt adhesive composition comprising low

A solvent-free one-part hot melt polyurethane adhesive or sealant composition which is solid at room temperature comprising 10 to 70% by weight of a urethane prepolymer having an isocyanate content of 0.25 to 15% and an isocyanate index greater than 1 and 30 to 90% by weight of an ethylenically unsaturated polymer having a number average molecular weight of 4,000 to 15,000 as determined by Gel Permeation Chromatography using a PL Gel,Mixed 10 micron column, a Shimadzu Model RID 6A Detector with a tetrahydrofuran carrier solvent at a flow rate of 1 milliliter per minute, the polymer containing sufficient hydroxyl functionality to provide an OH number of 5 to 15.

Polyurethane hotmelt adhesives with reactive acrylic copolymers

A process for foaming polyurethane reactive hot melt adhesive comprising the steps of:

Reactive hot melt foam

A process for applying heat shrink film to containers comprising the steps of a) coating at least a portion of a heat shrinkable but unshrunken film segment with a reactive hot melt polyurethane adhesive having a free isocyante content greater than 2% and a viscosity less than 3000 cps at 225.degree. F.; b) applying the film to the longitudinal surface of the container; and, c) subjecting the container to heat to shrink the film onto the container so as to permanently affix it thereto.

Shrink film labeling with polyurethane hot melts

A solvented polyurethane adhesive composition comprising 20 to 40% by weight of diphenylmethane diisocyanate, 0.5 to 4.0% by weight of a caprolactone triol, 40 to 75% by weight of a neopentyl adipate ester diol, 0 to 10% by weight of at least one polypropylene oxide diol, and a functionally effective amount of a catalyst therefor.

Growing community of inventors

Hopewell, NJ, United States of America

James W Nowicki