Exxon Research and Engineering Company

Robert A Steinkamp

Robert A Van Brederode

Thomas J Grail

A fusable powder composition comprising a cross-linkable organic polymeric material of less than 75 micron size, an organic peroxide, and preferably for some polymers an organosilicon compound for forming polymeric coatings on substrates such as glass or metal.

Crosslinkable polymer powder and laminate

Modified polymers, particularly polyolefins having improved flow and in some instances improved adhesion properties over that of a polymeric, e.g. polyolefin, base stock used as a starting material, are produced by a controlled reaction often involving degradation in an extruder, in which an initiator is injected under conditions of either maximum distribution or intensive mixing wherein appreciable rheological, i.e. molecular weight distribution, changes in said base polymer occur. In some embodiments monomers are also grafted to said base stock, during said degradation process. In such instances, exceptional, novel, grafted polymers with high melt flow properties and other useful properties are obtained.

Polymers with improved properties and process therefor

A high density polymer powder is prepared by preparing a melt of the polymer, and intimately mixing from 10 to 50 weight percent of a solvent therewith, and discharging the mixture through an atomizing nozzle.

Process for preparing finely divided polymers

Polyolefins which have been modified by being graft polymerized with from about 1 to 15 weight percent of an acrylic acid or derivative thereof are outstanding nucleating agents when added to unmodified polyolefins in concentrations of about 0.1 to 15 weight percent.

Growing community of inventors

Baytown, TX, United States of America

Robert A Steinkamp