Donald E Esmay

US Patent:

RE322490, Sep 23, 1986

Filed:

Sep 19, 1985

Appl. No.:

6/782981

Inventors:

Donald L. Esmay - Coon Rapids MN

Assignee:

Minnesota Mining and Manufacturing Company - Saint Paul MN

International Classification:

A61F 1302

US Classification:

428 40

Abstract:

A linerless double-coated pressure-sensitive adhesive tape of the prior art is wound directly upon itself into a roll that can later be unwound without delamination or offsetting of adhesive. The novel tape differs from the prior tape in that the pressure-sensitive adhesive at each of its faces is a substantially solvent-free, crosslinked alkyl acrylate polymer and can be aggressively tacky for uses requiring high-performance adhesion.

US Patent:

45130396, Apr 23, 1985

Filed:

Apr 4, 1983

Appl. No.:

6/481814

Inventors:

Donald L. Esmay - Coon Rapids MN

Assignee:

Minnesota Mining and Manufacturing Company - Saint Paul MN

International Classification:

C09J 702
A61F 1302

US Classification:

428 40

Abstract:

Composite of two pressure-sensitive adhesive tapes which are releasably adhered together adhesive face to adhesive face and then put to individual uses. The tapes are separable because their facing adhesives are substantially solvent-free, crosslinked alkyl acrylate polymers which can be aggressively tacky for uses requiring high-performance adhesion.

US Patent:

45228701, Jun 11, 1985

Filed:

Apr 4, 1983

Appl. No.:

6/481813

Inventors:

Donald L. Esmay - Coon Rapids MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 700

US Classification:

428252

Abstract:

A linerless double-coated pressure-sensitive adhesive tape of the prior art is wound directly upon itself into a roll that can later be unwound without delamination or offsetting of adhesive. The novel tape differs from the prior tape in that the pressure-sensitive adhesive at each of its faces is a substantially solvent-free, crosslinked alkyl acrylate polymer and can be aggressively tacky for uses requiring high-performance adhesion.

US Patent:

39938336, Nov 23, 1976

Filed:

Jan 19, 1976

Appl. No.:

5/650149

Inventors:

Donald L. Esmay - Coon Rapids MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 326

US Classification:

428311

Abstract:

Foam-backed pressure-sensitive adhesive tape having an open-cell polyurethane foam backing containing a foam-stabilizing fluoroaliphatic substance such as a fluoroaliphatic oligomer which affords repellency to oil and water. Moieties of the fluoroaliphatic substance similar to moieties of the polyurethane afford solubility in the polyurethane-forming mixture which is balanced against the insolubilizing effect of the carbon-bonded fluorine to concentrate the fluoroaliphatic substance at the cell membrane surfaces of the foam.

US Patent:

45992657, Jul 8, 1986

Filed:

Feb 13, 1985

Appl. No.:

6/701442

Inventors:

Donald L. Esmay - Coon Rapids MN

Assignee:

Minnesota Mining and Manufacturing Company - Saint Paul MN

International Classification:

C09J 702

US Classification:

428355

Abstract:

A roll of pressure-sensitive adhesive tape, the adhesive layer of which is an alkyl acrylate polymer which is low-tack and yet sufficiently tacky to adhere reliably to ordinary substrates but, by virtue of being crosslinked and nearly free from polar substituents, it is readily peelable from those substrates after prolonged dwell.

US Patent:

44156154, Nov 15, 1983

Filed:

Jun 1, 1982

Appl. No.:

6/383582

Inventors:

Donald L. Esmay - Coon Rapids MN
Gordon G. Johnson - Lake Elmo MN
George F. Vesley - Hudson WI

Assignee:

Minnesota Mining and Manufacturing Co. - St. Paul MN

International Classification:

B32B 2716
B32B 706
B32B 712
B32B 3128

US Classification:

428 40

Abstract:

A cellular pressure-sensitive adhesive membrane comprising 15 to 85% voids that does not collapse after being briefly compressed, has remarkably good adhesion on contact with rough surfaces and remarkably good flexibility and conformability at sub-freezing temperatures.