Daniel A Holguin

US Patent:

6372074, Apr 16, 2002

Filed:

Jun 14, 2000

Appl. No.:

09/594229

Inventors:

Daniel L. Holguin - Fullerton CA

Assignee:

Avery Dennison Corporation - Pasadena CA

International Classification:

B32B 3128

US Classification:

156234, 156247, 1562753, 1562755, 1562757, 156330, 1563314, 1563317, 156332, 349106, 359891, 430 7

Abstract:

There is provided an adhesive article including (a) a radiation curable adhesive layer comprising an acrylic pressure sensitive adhesive and, optionally, an acrylated urethane polymer; and (b) a transparent carrier layer. The adhesive article may contain a radiation curable epoxy layer between the radiation curable adhesive layer and the transparent carrier layer. This adhesive article is particularly useful in preparing protective coatings on color filters for use in a liquid-crystal display panel structure. The radiation curable epoxy layer and radiation curable pressure sensitive adhesive are applied to the color filter and then exposed to UV radiation. The UV radiation exposure transforms the pressure sensitive adhesive from a removable adhesive to a permanent adhesive. The color filter with the UV cured adhesive layer is then baked to fully cure the adhesive layer and to transform the adhesive further into a near structural adhesive. The cured adhesive layer, and cured epoxy layer, if present, make up the protective coating for the color filter.

US Patent:

6558790, May 6, 2003

Filed:

Nov 30, 1999

Appl. No.:

09/451076

Inventors:

Daniel L. Holguin - Fullerton CA
Carol A. Koch - San Gabriel CA

Assignee:

Avery Dennison Corporation - Pasadena CA

International Classification:

B32B 712

US Classification:

428355R, 428355 EN, 428355 AC, 4283171, 4283173, 428343, 525242, 5253269, 5253297, 5253303, 602 52, 602 54

Abstract:

Water-permeable, pressure-sensitive adhesives and adhesive constructions are characterized by a MVTR of at least 1,900 g/m /day and low adhesive edge lift, even after 25 kGy gamma irradiation. The copolymers are formed from a plurality of acrylic monomers, preferably butyl acrylate, 2-ethylhexyl acrylate, hydroxyethyl acrylate, and optionally N-vinyl pyrrolidone.

US Patent:

6653427, Nov 25, 2003

Filed:

Jan 10, 2001

Appl. No.:

09/757980

Inventors:

Daniel L. Holguin - Fullerton CA

Assignee:

Avery Dennison Corporation - Pasadena CA

International Classification:

C08F22068

US Classification:

526320, 526230, 5263171, 52631842, 5263184, 526319, 5263292, 5263285, 526325, 526312

Abstract:

A method for the preparation of gel-free poly 2-hydroxyethyl methacrylate substantially in the absence of a chain transfer agent, comprising introducing monomeric 2-hydroxyethyl methacrylate containing ethylene glycol dimethacrylate impurities in the range of about 0. 05 to 0. 1% by weight into a solution of alcohol and water and polymerizing. The present invention also provides a method for the preparation of gel-free homopolymer of 4-hydroxybutyl acrylate substantially in the absence of a chain transfer agent in an alcohol or in solution of alcohol and water. The present invention also provides a method for the preparation of gel-free copolymer of 2-hydroxyethyl methacrylate and 4-hydroxybutyl acrylate substantially in the absence of a chain transfer agent, comprising introducing monomeric 2-hydroxyethyl methacrylate containing ethylene glycol dimethacrylate impurities in the range of about 0. 05 to 0. 1% by weight with monomeric 4-hydroxybutyl acrylate into a solution of alcohol and water.

US Patent:

6686431, Feb 3, 2004

Filed:

Oct 25, 2001

Appl. No.:

10/057153

Inventors:

H. Paul Barker - Sherman Oaks CA
Eng Pi Chang - Arcadia CA
Daniel Holguin - Fullerton CA

Assignee:

Avery Dennison Corporation - Pasadena CA

International Classification:

C08F22210

US Classification:

526325, 526208, 5263031, 526320, 526321, 526333

Abstract:

A transparent and low refractive index optical coating for use in light transmitting electronic devices is disclosed. The optical coating comprises a hydrogel having a refractive index of less than 1. 40.

US Patent:

6703463, Mar 9, 2004

Filed:

Mar 19, 2002

Appl. No.:

10/102157

Inventors:

Daniel Holguin - Fullerton CA
Eng Pi Chang - Arcadia CA

Assignee:

Avery Dennison Corporation - Pasadena CA

International Classification:

C08F11418

US Classification:

526245, 428421, 428422

Abstract:

This invention is directed to optical adhesives useful in light transmitting devices, and more particularly to fluorosubstituted monoacrylate based adhesives having low refractive index. The optical adhesive of the present invention is soluble in organic solvents, and in particular, in non-fluorinated organic solvents. The polymer of the optical adhesive of the present invention has a low glass transition temperature and has the ability to bond well with substrates, including glass substrates and polyethylene terephthalate polyester film substrates typically used in optical devices. The invention is further directed to transfer tapes comprised of at least one layer of a fluorosubstituted monoacrylate based adhesive.

US Patent:

6706355, Mar 16, 2004

Filed:

Nov 5, 2001

Appl. No.:

10/012712

Inventors:

Daniel L. Holguin - Fullerton CA

Assignee:

Avery Dennison Corporation - Pasadena CA

International Classification:

B32B 2718

US Classification:

428 401, 428 413, 428 414, 428 415, 428 417, 428 418, 428354, 428355 R, 428355 EP, 428355 AC, 428355 N, 428913

Abstract:

There is provided an adhesive article including (a) a radiation curable adhesive layer comprising an acrylic pressure sensitive adhesive and, optionally, an acrylated urethane polymer; and (b) a transparent carrier layer. The adhesive article may contain a radiation curable epoxy layer between the radiation curable adhesive layer and the transparent carrier layer. This adhesive article is particularly useful in preparing protective coatings on color filters for use in a liquid-crystal display panel structure. The radiation curable epoxy layer and radiation curable pressure sensitive adhesive are applied to the color filter and then exposed to UV radiation. The UV radiation exposure transforms the pressure sensitive adhesive from a removable adhesive to a permanent adhesive. The color filter with the UV cured adhesive layer is then baked to fully cure the adhesive layer and to transform the adhesive further into a near structural adhesive. The cured adhesive layer, and cured epoxy layer, if present, make up the protective coating for the color filter.

US Patent:

6706836, Mar 16, 2004

Filed:

Mar 31, 2000

Appl. No.:

09/540252

Inventors:

Daniel L. Holguin - Fullerton CA
H. Paul Barker - Sherman Oaks CA
Ivan S. P. Lee - Arcadia CA
Kenneth S. Lin - San Marino CA

Assignee:

Avery Dennison Corporation - Pasadena CA

International Classification:

C08F22068

US Classification:

526320, 5263285, 526319, 526 74, 526 89, 526210, 526212, 526217, 5263171, 5263183, 5263184, 52631842, 5263292, 428 415

Abstract:

A method for the preparation of gel-free poly 2-hydroxyethyl methacrylate substantially in the absence of a chain transfer agent, comprising introducing monomeric 2-hydroxyethyl methacrylate containing ethylene glycol dimethacrylate impurities in the range of about 0. 05 to 0. 1% by weight into alcohol, polymerizing the 2-hydroxyethyl methacrylate to form a polymerization mixture, and removing the alcohol. Hydrophilic pressure sensitive adhesives are provided by adding polyethylene glycol to the polymerization mixture prior to removing the alcohol. A method for the preparation of an acrylic emulsion ink jet receptive clear coating, comprising forming a alkyl acrylate monomer-containing pre-emulsion feed mixture, introducing an activator into the alkyl acrylate monomer-containing pre-emulsion feed mixture, reacting a water soluble monomer feed in the alkyl acrylate monomer-containing pre-emulsion feed mixture, the water soluble monomer feed comprising 2-hydroxyethyl methacrylate and a cationic monomer to form a clear polymer in the reaction mixture. In another embodiment, the clear polymer in the butyl acrylate-containing pre-emulsion feed mixture is subsequently reacted with a water insoluble monomer feed mixture comprising 2-hydroxyethyl methacrylate, n-vinyl pyrrolidone, butyl acrylate, and methacrylic acid to form a second clear polymer in addition to the clear polymer in the alkyl acrylate monomer containing pre-emulsion feed mixture.

US Patent:

6743880, Jun 1, 2004

Filed:

Apr 26, 2002

Appl. No.:

10/133808

Inventors:

Daniel L. Holguin - Fullerton CA

Assignee:

Avery Denison Corporation - Pasadena CA

International Classification:

C08F22068

US Classification:

526320, 526230, 526312, 5263171, 5263184, 52631842, 526319, 526325, 5263285, 5263292

Abstract:

The present invention provides a method for the preparation of hydrophilic water insoluble, gel-free copolymers of 2-hydroxyethyl methacrylate and at least one of acrylic acid or methacrylic acid, and 2-hydroxyethyl methacrylate, 4-hydroxybutyl acrylate and acrylic or methacrylic acid, where the copolymers are prepared in a solution of water and alcohol using monomeric 2-hydroxyethyl methacrylate containing ethylene glycol dimethacrylate impurities up to about 0. 15% by weight and substantially in the absence of a chain transfer agent. The copolymers are convertible to water soluble copolymers by pH adjustment. The invention also provides a method for the preparation of a copolymer of 2-hydroxyethyl methacrylate and 4-hydroxybutyl acrylate, and a homopolymer of 2-hydroxyethyl methacrylate in a solution of water and either a monoalcohol or a polyhydric alcohol. The polymers are useful in topical skin applications, including use as cosmetic compositions, dermatological compositions, and flexible skin coatings, and as pressure sensitive adhesives.