Howard Steele

Process For Preparing Particle Board

Application

#4428897 Jan 31, 1984

Filed

Dec 23, 1982

Inventor

Steven B. Lowenkron (Houston, TX) · Richard A. Prather (Houston, TX) · Howard R. Steele (Baytown, TX)

Appl. No.

6/452777

Assignee

The Upjohn Company (Kalamazoo, MI)

International Classification

B28B 704

U.S. Classification

264109

Abstract

Particle boards are currently prepared by treating the particles (e. g. wood chips) with a binder comprising an organic polyisocyanate and, optionally, a release agent and then subjecting the treated particles to a molding process involving heat and pressure. The resulting particle board will generally release well from the caul plates of the press after forming. However, it has been found that the ease of release is enhanced, particularly where the wood particles in the board are derived from hardwood, by utilizing a metal selected from magnesium and zinc in the metallic surfaces of the caul plates or platens which come into contact with the particle board during the application of heat and pressure.

Process For Polymeric Mda, Recycle Of Finished Polymeric Mda

Application

#4792624 Dec 20, 1988

Filed

Feb 26, 1987

Inventor

Richard Hatfield (Pasadena, TX) · Howard R. Steele (Baytown, TX) · Nirad N. Shah (Houston, TX)

Appl. No.

7/019168

Assignee

The Dow Chemical Company (Midland, MI)

International Classification

C07C 8524

U.S. Classification

564333

Abstract

'An improvement is described in the process of preparing polymethylene polyphenyl polyamines by condensing aniline and formaldehyde in the presence of an acid catalyst. The improvement entails adding a minor proportion of a polyamine mixture comprising di(aminophenyl)methanes and oligomeric polymethylene polyphenyl polyamines, collectively known as polymethylene polyphenyl polyamines or polymeric MDA, to an intermediate stage of the condensation reaction where the various intermediately formed aminobenzylamines are present. The process lends itself to either a batch or continuous method for preparing the polyamines.
The improvement is actually observed in the polymethylene polyphenyl polyisocyanates derived from the polyamines which have substantially reduced color over those polyisocyanates prepared from polyamines prepared via a prior art method. Such color improvements invariably carry over to polyurethane products derived therefrom.

Baseball Swing Training Device

Application

#D691680 Oct 15, 2013

Filed

Nov 30, 2012

Inventor

Steven M. Steele (Fort Wayne, IN) · Thomas M. Steele (Fort Wayne, IN) · Howard S. Steele (Fort Wayne, IN) · Theodore D. Steele (Fort Wayne, IN)

Appl. No.

29/438547

Assignee

Steven M. Steele (Fort Wayne, IN) · Thomas M. Steele (Fort Wayne, IN) · Howard S. Steele (Fort Wayne, IN) · Theodore D. Steele (Fort Wayne, IN)

International Classification

2102

U.S. Classification

D21725

Claim

The ornamental design for a baseball swing training device, as shown.