Robert G Valadez

US Patent:

6946023, Sep 20, 2005

Filed:

Jun 6, 2002

Appl. No.:

10/165663

Inventors:

Thomas Mammen - La Verne CA, US
Robert Valadez - Azusa CA, US

Assignee:

Avery Dennison Corporation - Pasadena CA

International Classification:

C09D011/00

US Classification:

106 3115, 106 3132, 106 3149, 106 3158, 106 3143, 106 3159

Abstract:

In general, a smear-resistant ink composition according to the present invention comprises: (1) water; (2) at least one glycol selected from the group consisting of diethylene glycol, ethylene glycol, glycerol, and propylene glycol; (3) a pyrrolidone selected from the group consisting of 2-pyrrolidone and 3-pyrrolidone; and (4) at least one colorant that produces a detectable fluorescent color when the ink composition is applied to paper. Preferably, the pyrrolidone is 2-pyrrolidone. In one preferred embodiment, the at least one glycol comprises diethylene glycol and ethylene glycol. In another preferred embodiment, the at least one glycol comprises diethylene glycol, ethylene glycol, and propylene glycol. The composition can comprise other ingredients, such as a basic color stabilizer, a resin, a resin modifier that is a carbonate salt, a biocide, and a nonionic surfactant. The colorants can be formulated to produce a pink, yellow, blue, green, purple, or orange color; other colors are possible.

US Patent:

7084191, Aug 1, 2006

Filed:

Dec 20, 2002

Appl. No.:

10/325138

Inventors:

Thomas Mammen - La Verne CA, US
Robert Valadez - Azusa CA, US

Assignee:

Avery Dennison Corporation - Pasadena CA

International Classification:

C09D 11/16
C08L 91/00

US Classification:

523161, 524310, 524611

Abstract:

The present invention is directed to an ink composition resistant to solvent evaporation which may be employed for use in retractable permanent marker pens. Generally, the ink composition of the present invention comprises n-propanol, a pyrrolidone, a tryglyceride, a terpene phenolic resin, and at least one colorant to yield a detectable color when the ink composition is applied to a writable substrate. Additionally, the ink composition may further comprise at least one of polyether modified dimethylpolysiloxane copolymer and silicone glycol surfactant. Optionally, the ink composition may further comprise water.

US Patent:

59690690, Oct 19, 1999

Filed:

Aug 26, 1996

Appl. No.:

8/701767

Inventors:

Shiaonung Su - Buena Park CA
H. Paul Barker - La Canada CA
Ghanshyam H Popat - Alta Loma CA
Frederick N. Miekka - San Gabriel CA
Raymond G. Kubit - Yorba Linda CA
Robert Valadez - Azusa CA

Assignee:

Avery Dennison Corporation - Pasadena CA

International Classification:

C08F 2010

US Classification:

52631844

Abstract:

Water dispersible, hydrophilic, repulpable, water-activatable, acrylic polymers are provided. The polymers are non-tacky when dry, but become tacky when wet, and exhibit high peel strength on a variety of substrates. The polymers comprise an acrylic-based polymer prepared by emulsion polymerization of 40 to 70% by weight of one or more alkyl acrylates, the alkyl group of which has from 4 to 8 carbon atoms; 10 to 20% by weight of methacrylate; 2 to 15% by weight of vinyl acetate; and 10 to 25 percent by weight of methacrylic acid and/or acrylic acid; and a positive amount up to about 30% by weight of methyl methacrylate. Some embodiments also include a short chain hydroxyalkyl methacrylate. Also provided are ink jet-imprintable, water-activatable constructions comprising a layer of water-activatable polymer, coated on a release liner or other surface. Optionally, a water-resistant transparent film layer is disposed between the polymer and release liner or used in place of the release liner.