Michael David Watkins

US Patent:

H14826, Sep 5, 1995

Filed:

Sep 7, 1993

Appl. No.:

8/117382

Inventors:

David J. St. Clair - Houston TX
James R. Erickson - Katy TX
Michael J. Watkins - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

B32B 1504

US Classification:

428457

Abstract:

A permanent, flexible coating for protecting and lubricating metal that is formed into articles by single step or multiple step bending or stamping deformation is disclosed. The coating comprises a block copolymer which is formed from selective hydrogenation of an (A-B). sub. n -A or (A-B). sub. n block copolymer. Monomers containing functional groups, preferably monocarboxylic or polycarboxylic acid compounds or their derivatives, are grafted onto the selectively hydrogenated block copolymer in an amount sufficient to improve adhesion of the polymer to the metal. The functionalized block copolymer can be crosslinked to improve resistance of the coating to organic solvents.

US Patent:

40304728, Jun 21, 1977

Filed:

Jun 16, 1976

Appl. No.:

5/696493

Inventors:

Michael L. Watkins - Garden Grove CA

International Classification:

F31B 304

US Classification:

124 5

Abstract:

An aerial toy and launching stick apparatus comprises an elongate tubular stick having a helical track or guide formed about the periphery of at least major portions thereof. One end of the stick is expanded outwardly a small amount to form a stop. A sliding member has inner dimensions permitting slipping along the tracked portion of the stick but preventing movement past the stop and has a track follower on an inner surface so that the member is caused to rotate as it is slid along the stick. A spaced pair of thin flexible flanges are formed on the sliding member to receive and releasably retain a hub portion of the aerial toy before launching. The toy is otherwise in the form of a circular disc of relatively large diameter and is preferably constructed having outer edges curved downwardly and under to impart a generally air-foil section to the toy. Operation is by grasping an end of the stick remote from the stop and quickly whipping or snapping the stick in the direction it is desired to sail the toy with the toy initially near the gripping hand. This whipping causes both the sliding member and toy to slide and rotate along the stick until the member reaches the stop and is stopped.

US Patent:

51150190, May 19, 1992

Filed:

Mar 30, 1990

Appl. No.:

7/503343

Inventors:

Edward J. Marx - Houston TX
Michael J. Watkins - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

C08G 5914
G08L 6302
G08L 6304

US Classification:

525 65

Abstract:

A method for dispersing and stabilizing a carboxy-functionalized butadiene-styrene block copolymer in an epoxy resin is provided comprising the steps of: (a) dispersing from about 5 to about 30 weight percent of a carboxy-functionalized hydrogenated butadiene-styrene block copolymer in a liquid epoxy resin to produce an elastomer-dispersed epoxy resin composition; (b) contacting the elastomer-dispersed epoxy resin composition and from about 15 to about 30 weight percent, based on the weight of the elastomer-modified epoxy resin composition, of a polyhydric phenolic compound in the presence of an advancement catalyst at a temperature within the range of about 40. degree. C. to about 200. degree. C. for time effective for producing a solid elastomer-modified epoxy resin having an epoxy equivalent weight in the range of about 500 to about 1,500; and (c) recovering said solid elastomer-modified epoxy resin. The method provides for impact resistant stable styrene-butadiene block copolymer-modified epoxy resin composition useful for powder coating formulations.