Steven Dongchen Yau

US Patent:

6838512, Jan 4, 2005

Filed:

Jun 5, 2003

Appl. No.:

10/455577

Inventors:

Robert E. Eggers - Arden Hills MN, US
James C. Margl - Houlton WI, US
Steven D. Yau - Austin TX, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08K 906

US Classification:

524544, 524365, 524413, 524423, 525244

Abstract:

A cold shrink article including a fluoroelastomer composition comprising a first fluoroterpolymer having a weight average molecular weight centered from about 10to about 10. A second fluoroterpolymer included in the fluoroelastomer composition has a weight average molecular weight centered at 10. The first fluoroterpolymer combines with the second fluoroterpolymer to provide a mixed terpolymer. Other components of the fluoroelastomer composition include a processing aid, a filler, an oil, and a curative. The fluoroelastomer composition upon curing at an elevated temperature provides the cold shrink article that has a permanent set value of 21% or less.

US Patent:

20030215592, Nov 20, 2003

Filed:

May 14, 2002

Appl. No.:

10/145277

Inventors:

Donald Gilde - Spicewood TX, US
James Mayne - Cedar Park TX, US
Steven Yau - Austin TX, US

Assignee:

3M Innovative Properties Company

International Classification:

B32B001/08

US Classification:

428/036910

Abstract:

A tubular article comprising a multi-wall extruded tube, one embodiment of which is a dual-wall extruded tube including an elastomeric outer wall having a first color and an elastomeric inner wall having a second color. The dual-wall extruded tube may be formed by co-extrusion of the elastomeric outer wall and the elastomeric inner wall to provide a bond between the two walls. Visible indicia may be formed in the tubular article by removal of selected portions of the elastomeric outer wall using laser ablation to reveal the second color of the elastomeric inner wall. The first color differs from the second color to provide high contrast of the indicia from the first color of the elastomeric outer wall. A tubular article according to the present invention is expandable for placement on a core member in an expanded condition wherein the bond between the elastomeric outer wall and the elastomeric inner wall remains substantially unchanged.

US Patent:

56310790, May 20, 1997

Filed:

Jun 29, 1995

Appl. No.:

8/496533

Inventors:

Gustav Gutman - Austin TX
Steven D. Yau - Austin TX

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 516

US Classification:

428327

Abstract:

A heat-resistant anti-static pressure-sensitive adhesive tape comprising a substrate having coated thereon an acrylic microparticulate adhesive having an average diameter of at least about 1 micrometer, wherein the microparticles have a surface bearing thereon a conductive material formed from a polymer electrolyte base polymer, and at least one ionic salt selected from the group consisting of salts of alkali metals and salts of alkaline earth metals, said adhesive being adhered to said substrate by means of a primer, said primer comprising at least one phenolic resin and at least one rubbery compound, said adhesive tape being capable of surviving immersion in molten solder for at least about 5 seconds.

US Patent:

55081070, Apr 16, 1996

Filed:

Dec 29, 1994

Appl. No.:

8/365748

Inventors:

Gustav Gutman - Austin TX
Steven D. Yau - Austin TX

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 3300
C09J 702

US Classification:

428339

Abstract:

A water-resistant, anti-static pressure-sensitive adhesive tape suitable for use as a wafer dicing tape comprising a flexible substrate having opposing surfaces, at least one surface bearing thereon a removable, aziridine-crosslinked microparticulate adhesive comprised of microparticles having a surface bearing thereon an ionic conductive material formed from a polymer electrolyte base polymer, and at least one ionic salt selected from the group consisting of salts of alkali metals and salts of alkaline earth metals, wherein said microparticles have an average diameter of at least about 1 micrometer, said adhesive having an adhesion to steel of from about 0. 5 Newtons/100 mm (N/100 mm) to about 10 N/100 mm.

US Patent:

50809423, Jan 14, 1992

Filed:

May 23, 1990

Appl. No.:

7/527525

Inventors:

Steven D. Yau - Austin TX

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 108
H02G 1508

US Classification:

428349

Abstract:

Compositions and a process for manufacturing an elastomeric, low modulus pre-stretched tubular article supported by a removable core. The article has a low Shore A hardness value and a low modulus which allows a large expansion ratio and an increased wall thickness.

US Patent:

59141867, Jun 22, 1999

Filed:

Sep 6, 1996

Appl. No.:

8/709067

Inventors:

Steven D. Yau - Austin TX
Gustav Gutman - Austin TX

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 516

US Classification:

428327

Abstract:

A heat-resistant anti-static pressure-sensitive adhesive tape comprising a substrate having coated thereon an acrylic microparticulate adhesive having an average diameter of at least about 1 micrometer, wherein the microparticles have a surface bearing thereon a conductive material formed from a polymer electrolyte base polymer, and at least one ionic salt selected from the group consisting of salts of alkali metals and salts of alkaline earth metals, and at least one thermal stabilizer selected from the group consisting of hindered amines, salts of substituted toluimidazoles, and mixtures thereof, said substituted toluimidazoles having the formula: ##STR1## wherein R. sub. 1 is selected from the group consisting of hydrogen, a methyl group, an ethyl group and a propyl group, R. sub. 2 is selected from the group consisting of hydrogen, a methyl group and an ethyl group, M is a metal, and x is an integer selected from 1 or 2 with positive or negative identity being dependent on the valence of the metal, said adhesive being adhered to said substrate by means of a primer, said primer comprising at least one phenolic resin, at least one rubbery compound, and at least one of said thermal stabilizers, said adhesive tape being capable of surviving immersion in molten solder at 260. degree. C. for at least about 5 seconds.