Roger W Lange

US Patent:

57742650, Jun 30, 1998

Filed:

Feb 5, 1996

Appl. No.:

8/591570

Inventors:

James P. Mathers - Woodbury MN
Chris J. Goodbrake - Inver Grove Heights MN
Kathleen A. Hachey - Hudson WI
Thomas P. Hedblom - Eagan MN
Kathleen M. Humpal - Woodbury MN
Roger W. Lange - Maplewood MN
David C. May - Hudson WI
Kyung H. Moh - Woodbury MN
Thomas E. Forester - South St. Paul MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

G02B 5128

US Classification:

359539

Abstract:

All-ceramic retroreflective elements which may be used in pavement markings comprising an opacified ceramic core and ceramic optical elements partially embedded into the core.

US Patent:

43966500, Aug 2, 1983

Filed:

Jun 7, 1982

Appl. No.:

6/385790

Inventors:

Roger W. Lange - Maplewood MN
Alek P. Szecsy - Inver Grove Heights MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B05D 136

US Classification:

427409

Abstract:

Primer compositions for adhering overcoatings derived from in situ polymerizations of uncured monomers onto inorganic substrates are disclosed. These primer compositions comprise at least one non-amino- or non-amido-containing silane, at least one of certain metal esters, and preferably an acidic material. The overcoatings are derived from epoxy and vinyl monomers. The primed and overcoated substrates of the present invention provide articles having protective, decorative, or other functional surface layers.

US Patent:

40899969, May 16, 1978

Filed:

Jan 28, 1977

Appl. No.:

5/763581

Inventors:

Roger W. Lange - Maplewood MN
Harold G. Sowman - Maplewood MN

Assignee:

Minnesota Mining and Manufacturing Company - Saint Paul MN

International Classification:

B05B 500

US Classification:

427160

Abstract:

Thin nonorganic films of complexes of titanium and stannous tin are formed on organic polymeric substrates to provide ultraviolet absorbing coatings which retard degradation of the polymeric material of the substrate due to ultraviolet light.

US Patent:

41383362, Feb 6, 1979

Filed:

Dec 2, 1977

Appl. No.:

5/856655

Inventors:

Arthur Mendel - Vadnais Heights MN
Roger W. Lange - Maplewood MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B01D 1503

US Classification:

210198C

Abstract:

A thin layer chromatographic plate housing a substrate and bonded there to a layer of discrete, spherical inorganic metal oxide particles bonded to the substrate by an inorganic metal oxide binder the particles and binder being SrO. sub. 2, TiO. sub. 2, ZrO. sub. 2, or Al. sub. 2 O. sub. 3.

US Patent:

41661478, Aug 28, 1979

Filed:

Apr 16, 1973

Appl. No.:

5/351285

Inventors:

Roger W. Lange - Maplewood MN
Harold G. Sowman - Maplewood MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

C04B 3500
C08K 322
C09C 136

US Classification:

428328

Abstract:

Solid, shaped and fired refractory articles, such as fibers and microspheres, of titanium dioxide are made by shaping, gelling, and firing titania sols. Said fibers can be made by extruding in air a viscous aqueous titania sol, and heating and firing the resulting green fiber to remove water, decompose and volatilize undesired constituents, and form a refractory fiber of polycrystalline titanium dioxide, which is useful, for example, to form refractory fabrics or as reinforcement for composites. Said microspheres can be made by dispersing droplets of an aqueous titania sol in an organic dehydrating liquid, separating the resulting green microspheres from the dehydrating liquid, and heating and firing the green microspheres to form solid refractory microspheres of polycrystalline titanium dioxide, which are useful, for example, in reflective signs or traffic marking surfaces. Said fired fibers and microspheres are preferably transparent to visible light with the titanium dioxide content thereof in its anatase form.

US Patent:

43562337, Oct 26, 1982

Filed:

May 20, 1981

Appl. No.:

6/265467

Inventors:

Roger W. Lange - Maplewood MN
Alek P. Szecsy - Inver Grove Heights MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 2738
C08L 8300

US Classification:

428336

Abstract:

Primer compositions for adhering overcoatings derived from in situ polymerizations of uncured monomers onto inorganic substrates are disclosed. These primer compositions comprise at least one non-amino- or non-amido-containing silane, at least one of certain metal esters, and preferably an acidic material. The overcoatings are derived from epoxy and vinyl monomers. The primed and overcoated substrates of the present invention provide articles having protective, decorative, or other functional surface layers.

US Patent:

48163333, Mar 28, 1989

Filed:

Sep 19, 1986

Appl. No.:

6/910250

Inventors:

Roger W. Lange - Maplewood MN
Harold G. Sowman - Stillwater MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 516
B32B 900

US Classification:

428331

Abstract:

A coated article having a substrate coated with a layer of silica particles is provided. The coating is substantially uniform in thickness, adheres aggressively to the substrate, and provides excellent antireflection properties to the substrate.

US Patent:

53625544, Nov 8, 1994

Filed:

Aug 10, 1992

Appl. No.:

7/927821

Inventors:

Mark R. Holzer - Woodbury MN
Roger W. Lange - Maplewood MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 516

US Classification:

428283

Abstract:

An article suitable for use in bonding to metal, glass, or ceramic substrates at high temperatures, e. g. , above about 400. degree. C, comprises (a) a thermally stable backing material, such as a metal foil or an inorganic fabric; and (b) a coating on at least a portion of at least one major surface of the backing material, the coating consisting essentially of fused or fusible particles selected from glass particles, ceramic particles, and mixtures thereof. Preferably, the coating further contains a non-pressure sensitive adhesive vehicle such as pine oil, to aid in application and retention of the particles.