Sean M Burdzy

US Patent:

20180016363, Jan 18, 2018

Filed:

Sep 12, 2017

Appl. No.:

15/702199

Inventors:

- Duesseldorf, DE
Eric N. Silverberg - Summit NJ, US
Sean M. Burdzy - Hamden CT, US
Andrew D. Messana - Newington CT, US
John G. Woods - Farmington CT, US
Bruce Stevens - Manville NJ, US

International Classification:

C08F 2/46
C09J 133/08
C08K 5/00
C08F 220/18
C08F 283/06
C08F 283/02
C09J 133/10
C08F 2/48
B32B 37/12

Abstract:

Disclosed are photoinitiators that are ultra violet (UV) reactive. The photoinitiators can be polymerized into polymeric backbones for use in UV curable hot melt pressure sensitive adhesives. The preferred polymeric backbones are acrylic-based polymers. The photoinitiators are very UVC sensitive and have excellent hot melt viscosity stability that is many fold higher than existing photoinitiators. The subject photoinitiators feature aryl ketones linked through an ether linkage to a variety of connector sequences that allow for polymerization of the photoinitiators.

US Patent:

20170044087, Feb 16, 2017

Filed:

Nov 1, 2016

Appl. No.:

15/340285

Inventors:

- Duesseldorf, DE
Sean M. Burdzy - Hamden CT, US
Joel D. Schall - Hamden CT, US
Anthony F. Jacobine - North Haverhill NH, US

International Classification:

C07C 69/34
C08F 222/20
C09J 135/02
C07C 229/26

Abstract:

Anaerobic curable compositions, such as adhesives and sealants, containing blocked carboxylic acid compounds are provided. The blocked carboxylic acid compounds are labile carboxylic acid compounds having acetal linkages, which cleave to release the underlying carboxylic acid during anaerobic cure.

US Patent:

20170044088, Feb 16, 2017

Filed:

Nov 1, 2016

Appl. No.:

15/340385

Inventors:

- Duesseldorf, DE
Sean M. Burdzy - Hamden CT, US
Joel D. Schall - Hamden CT, US
Anthony F. Jacobine - North Haverhill NH, US

International Classification:

C07C 69/54
C09J 133/14
C08F 220/28

Abstract:

The present invention relates to anaerobic curable compositions, such as adhesives and sealants, containing blocked acrylic acid compounds. The blocked acrylic acid compounds are labile (meth)acrylic acid compounds having an acetal linkage, which cleaves to release (meth)acrylic acid during anaerobic cure. In this way, the block acrylic acid compounds acts as an adhesion promoter thereby promoting adhesion to various substrates.

US Patent:

20170044089, Feb 16, 2017

Filed:

Nov 1, 2016

Appl. No.:

15/340435

Inventors:

- Duesseldorf, DE
Sean M. Burdzy - Hamden CT, US
Joel D. Schall - Hamden CT, US
Anthony F. Jacobine - North Haverhill NH, US

International Classification:

C07C 69/60
C09J 133/14
C08F 220/28

Abstract:

Anaerobic curable compositions, such as adhesives and sealants, containing blocked dicarboxylic acid compounds are provided. The blocked dicarboxylic acid compounds are labile dicarboxylic acid compounds having two acetal linkages, which cleave to release the underlying dicarboxylic acid during anaerobic cure. In this way, the dicarboxylic acid can participate in the anaerobic cure of the composition when the blocking group is released.