Richard C Woudenberg from Burlington, MA, age 54

Radiation-Curable Inks
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US Patent:

6896937, May 24, 2005
Filed:

Nov 14, 2003
Appl. No.:

10/714325
Inventors:

Richard C. Woudenberg - Keene NH, US
Assignee:

Markem Corporation - Keene NH
International Classification:

C08J007/04
B41J002/01
C08F002/50
C09J011/10
US Classification:

427511, 522 8, 522 9, 522 14, 522 18, 522 75, 522 83, 522 71, 522 10, 347 99, 347100
Abstract:

Radiation-curable ink compositions and methods of printing including the compositions are disclosed. In some embodiments, a radiation-curable hot melt ink composition includes a colorant, a polymerizable monomer, and a photoinitiating system. The photoinitiating system can include 0. 5-1. 5% by weight of an aromatic ketone photoinitiator, 2-10% by weight of an amine synergist, 3-8% by weight of an alpha-cleavage type photoinitiator, and 0. 5-1. 5% by weight of a photosensitizer.

Jettable Ink
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US Patent:

7322688, Jan 29, 2008
Filed:

Feb 16, 2005
Appl. No.:

11/058777
Inventors:

Richard C. Woudenberg - Keene NH, US
Assignee:

Markem Corporation - Keene NH
International Classification:

G01D 11/00
US Classification:

347100, 347102, 347101
Abstract:

A printing method includes printing an ultraviolet light curable jettable ink including a colorant, a photoinitiating system, and cationic reagent onto a substrate provide a marking, and exposing the marking to ultraviolet radiation after at least two second. The ultraviolet light curable inkjet ink having Brookfield viscosity of between about 1 and 50 centipoise at printing temperature, and between about 170 and 500 centipoise at a shear rate of 20 Sand at a temperature of about 20 C.

Marking Substrates
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US Patent:

20030087109, May 8, 2003
Filed:

May 15, 2001
Appl. No.:

09/855916
Inventors:

Richard Larson - Walpole NH, US
Michael Secord - Winchester NH, US
Richard Woudenberg - Keene NH, US
International Classification:

B32B009/04
C08G077/00
US Classification:

428/447000, 528/010000
Abstract:

A marking composition includes a polymerizable first material that comprises silicon and a second material capable of extending polymeric chains of the first material, wherein the marking composition is capable of undergoing a change that can be detected optically when the composition is contacted with energy.

Marking Substrates
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US Patent:

20030203122, Oct 30, 2003
Filed:

Mar 3, 2003
Appl. No.:

10/378406
Inventors:

Richard Larson - Walpole NH, US
Michael Secord - Winchester NH, US
Richard Woudenberg - Keene NH, US
International Classification:

C08F002/46
US Classification:

427/487000
Abstract:

A marking composition includes a polymerizable first material that comprises silicon and a second material capable of extending polymeric chains of the first material, wherein the marking composition is capable of undergoing a change that can be detected optically when the composition is contacted with energy.

Solvent-Based Inkjet Ink Formulations
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US Patent:

20110012954, Jan 20, 2011
Filed:

Jul 20, 2010
Appl. No.:

12/839534
Inventors:

Benjamin J. Brown - Keene NH, US
Richard C. Woudenberg - Keene NH, US
Ann Benjamin - Keene NH, US
Corey Williams - Keene NH, US
Assignee:

Markem-Imaje Corporation - Keene NH
International Classification:

B41J 2/015
C08L 33/08
C08L 61/00
C08L 71/10
US Classification:

347 20, 524556, 524592, 524611
Abstract:

Solvent-based inkjet ink formulations including an organic solvent, a resin, a surfactant, and a colorant are provided. The inks have many desirable attributes such as extended decap time.

Hybrid Additive Manufacturing With Dual Phase-Change Materials
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US Patent:

20220379547, Dec 1, 2022
Filed:

Jun 21, 2022
Appl. No.:

17/845600
Inventors:

- Medford MA, US
Richard Woudenberg - Burlington MA, US
Wojciech Matusik - Lexington MA, US
International Classification:

B29C 64/112
B29C 64/336
B33Y 10/00
B33Y 70/00
B33Y 80/00
Abstract:

A method includes manufacturing a kernel that comprises a quantity of a phase-change material and heating the thermoplastic past a softening temperature thereof. This softening temperature is greater than the phase-change material's melting temperature. The method continues with pressing this heated thermoplastic onto a contact surface of the kernel and the thermoplastic to cool to below its softening temperature. As a result, the thermoplastic assumes a profile that depends, at least in part, on the contact surface's profile. The method continues with separating the kernel from the thermoplastic.

Solvent-Based Inkjet Ink Formulations
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US Patent:

20160177117, Jun 23, 2016
Filed:

Feb 26, 2016
Appl. No.:

15/055152
Inventors:

- Keene NH, US
Richard C. Woudenberg - Keene NH, US
Ann Benjamin - Spofford NH, US
Corey Williams - Keene NH, US
International Classification:

C09D 11/36
C09D 11/107
C09D 11/103
Abstract:

Solvent-based inkjet ink formulations including an organic solvent, a resin, a surfactant, and a colorant are provided. The inks have many desirable attributes such as extended decap time.

Hot Melt Inks
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US Patent:

20160090491, Mar 31, 2016
Filed:

Sep 25, 2014
Appl. No.:

14/497126
Inventors:

- Keene NH, US
Michael P. Secord - West Chesterfield NH, US
Richard C. Woudenberg - Keene NH, US
International Classification:

C09D 11/12
C09D 11/34
Abstract:

This disclosure includes a hot melt ink composition that includes at least one wax having a freezing point of from about 20 C. to about 45 C. and a melting point of at least about 35 C., and at least one colorant. The composition includes at least about 50 wt % of the at least one wax. This disclosure also relates to a printing process using such a composition and a product containing such a composition.

Richard C Woudenberg