Michael C Palazzotto

US Patent:

6635689, Oct 21, 2003

Filed:

Jun 26, 2000

Appl. No.:

09/603548

Inventors:

Wayne S. Mahoney - Saint Paul MN
Michael C. Palazzotto - Woodbury MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F 246

US Classification:

522 18, 522 20, 522 29, 522 30, 522129, 522170

Abstract:

Accelerators that can be useful for an energy polymerizable composition comprising a cationically curable material; energy polymerizable compositions comprising at least one cationically curable material and an initiation system therefor, the initiation system comprising at least one organometallic complex salt and at least one accelerator; and a method for curing the compositions. The cured compositions can provide useful articles. The invention also provides compositions of matter comprising an organometallic complex salt and at least one compound selected from the Class 1 through Class 4 compounds disclosed herein.

US Patent:

6706403, Mar 16, 2004

Filed:

May 12, 2000

Appl. No.:

09/570221

Inventors:

Peter M. Olofson - Oakdale MN
Kent W. Morris - Santa Rosa CA
Michael C. Palazzotto - Woodbury MN

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

B32B 2738

US Classification:

428413, 428447, 522 25, 522 29, 522 31

Abstract:

A process, system, and materials for lamination of anti-reflective glass to the screen of a CRT display, including a polymerizable adhesive and laminated articles are described. The photopolymerizable adhesive composition including, in certain embodiments, an epoxy resin and a photosensitive initiating system are disclosed.

US Patent:

6750266, Jun 15, 2004

Filed:

Dec 28, 2001

Appl. No.:

10/033507

Inventors:

James G. Bentsen - North St. Paul MN
Robert J. DeVoe - Oakdale MN
Michael C. Palazzotto - Woodbury MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G03F 7038

US Classification:

522 2, 522 7, 522 14, 522 16, 522 22, 522 25, 522 26, 522 27, 522 28, 522 29, 522182, 522170, 522117, 4302701, 4302801, 4302811

Abstract:

A multiphoton-activatable, photoreactive composition comprises: (a) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction; (b) a photochemically-effective amount of a multiphoton photosensitizer comprising at least one multiphoton up-converting inorganic phosphor; and (c) a photochemically-effective amount of a one-photon photoinitiator system that is capable of being photosensitized by the multiphoton photosensitizer.

US Patent:

6777460, Aug 17, 2004

Filed:

Dec 23, 2002

Appl. No.:

10/328520

Inventors:

Michael C. Palazzotto - Woodbury MN
Stefan H. Gryska - Woodbury MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08J 328

US Classification:

522 25, 522 26, 522 29, 522168, 522170, 522181, 522182

Abstract:

Novel catalyst systems in cationically curable compositions provide colorless cationically cured compositions with improved degree of cure and thermal stability. The curable composition comprises at least one cationically curable monomer and a curing agent comprising Photocurative A or Photocurative B. Photocurative A comprises an effective amount of an accelerating photochemically active salt comprising a photochemically active cation and an accelerating anion, and an effective amount of an inhibiting non-photochemically active salt comprising a non-photochemically active cation and an inhibiting anion. Photocurative B comprises an effective amount of an inhibiting photochemically active salt comprising a photochemically active cation and an inhibiting anion, and an effective amount of an accelerating non-photochemically active salt comprising a non-photochemically active cation and an accelerating anion. The inhibiting and accelerating salts in photocuratives A and B are defined by photo differential scanning calorimetry (pDSC) and thermal differential scanning calorimetry (tDSC). The compositions are useful, for example, as optically colorless or low color coatings, adhesives, encapsulants, and sealants for optical and electronic applications.

US Patent:

6906156, Jun 14, 2005

Filed:

Sep 2, 2003

Appl. No.:

10/653669

Inventors:

Wayne S. Mahoney - Saint Paul MN, US
Michael C. Palazzotto - Woodbury MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F004/72
C08F004/80
C08G059/68
C08G065/00

US Classification:

526170, 526171, 526332, 528403, 528405, 528410, 528412, 528421, 522 29, 522 30, 522 66, 522 68, 522170, 522181

Abstract:

Accelerators that can be useful for an energy polymerizable composition comprising a cationically curable material; energy polymerizable compositions comprising at least one cationically curable material and an initiation system therefor, the initiation system comprising at least one organometallic complex salt and at least one accelerator; and a method for curing the compositions. The cured compositions can provide useful articles. The invention also provides compositions of matter comprising an organometallic complex salt and at least one compound selected from the Class 1 through Class 4 compounds disclosed herein.

US Patent:

7030169, Apr 18, 2006

Filed:

Sep 26, 2003

Appl. No.:

10/672762

Inventors:

Rajdeep S. Kalgutkar - St. Paul MN, US
Michael C. Palazzotto - Woodbury MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F 4/00
C08G 1/56
C08G 1/73

US Classification:

522 31, 522 59, 522 50, 526193, 526198

Abstract:

Compositions are provided that that can be used as an initiator system for free radical polymerization reactions. More specifically, the initiator systems include an electron acceptor and an electron donor. The electron donors are arylsulfinate salts having a cation that contains at least one carbon atom and either a positively charged nitrogen atom or a positively charged phosphorus atom. Methods of polymerization are also provided that can be used to prepare polymeric material with the initiator systems. The initiator systems can be thermal initiator systems, photoinitiator systems, or combinations thereof.

US Patent:

7064152, Jun 20, 2006

Filed:

May 17, 2004

Appl. No.:

10/847523

Inventors:

Rajdeep S. Kalgutkar - St. Paul MN, US
Michael C. Palazzotto - Woodbury MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F 2/46

US Classification:

522 15, 522 16, 522 25, 522 26, 522 28, 522 18, 522182

Abstract:

Compositions are provided that include an electron donor and a sensitizing compound. More specifically, the electron donor is an arylsulfinate salt. Methods of polymerization are also provided that can be used to prepare polymeric material from a photopolymerizable composition that includes ethylenically unsaturated monomers and a photoinitiator system. The photoinitiator system includes an electron donor and a sensitizing compound.

US Patent:

7329692, Feb 12, 2008

Filed:

Jan 31, 2006

Appl. No.:

11/275830

Inventors:

Rajdeep S. Kalgutkar - St. Paul MN, US
Michael C. Palazzotto - Woodbury MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F 2/48
C08F 2/50
C08F 4/00

US Classification:

522 25, 522 26, 522 27, 522182

Abstract:

Compositions are provided that that can be used as an initiator system for free radical polymerization reactions. More specifically, the initiator systems include an electron acceptor and an electron donor. The electron donors are arylsulfinate salts having a cation that contains at least one carbon atom and either a positively charged nitrogen atom or a positively charged phosphorus atom. Methods of polymerization are also provided that can be used to prepare polymeric material with the initiator systems. The initiator systems can be thermal initiator systems, photoinitiator systems, or combinations thereof.