Xiang X Yu

US Patent:

8263720, Sep 11, 2012

Filed:

Oct 5, 2011

Appl. No.:

13/253348

Inventors:

Joseph Salamone - San Antonio TX, US
Ann Beal Salamone - San Antonio TX, US
Xiang Yu - Los Angeles CA, US
Levi J. Irwin - Alexandria VA, US

Assignee:

Rochal Industries, LLP - San Antonio TX

International Classification:

C08F 30/08
A61F 13/00
C08L 15/00

US Classification:

526279, 602 52, 424443, 523111, 523118

Abstract:

Combinations of solubilized, covalently crosslinked, siloxy-containing polymers in a solvent system of a volatile hydrophobic (non-polar) liquid that is non-stinging to a user are excellent non-irritating liquid coating materials for forming films, which, after solvent evaporation, are water insoluble but water-vapor permeable and lightly adherent to surfaces such as skin and mucous membranes. The crosslinking content is greater than 1 weight % and can be as much as 16 weight %. In comparison to non-crosslinked polysiloxy films, or crosslinked films of 1 weight % or less, the enhanced crosslinked polysiloxy films, while continuing to be soluble in the solvent, have reduced tack and reduced adhesion to skin and can act as sacrificial coatings under strongly adherent pressure sensitive adhesives.

US Patent:

20120109036, May 3, 2012

Filed:

Jul 7, 2010

Appl. No.:

13/382227

Inventors:

Mahesh Sambasivam - Skillman NJ, US
Joseph C. Salamone - San Antonio TX, US
Ann Beal Salamone - San Antonio TX, US
Xiang Yu - San Antonio TX, US

Assignee:

ConvaTec Technologies Inc. - Las Vegas NV

International Classification:

A61L 24/02
A61M 5/00
A61M 25/02
C08F 230/08
A61F 13/02

US Classification:

602 54, 526279, 604344, 604180

Abstract:

A silicone pressure sensitive adhesive with amphiphilic copolymers for maintaining adhesion in a moist environment. The amphiphilic copolymers for silicone adhesives include at least one silicone moiety and at least one hydrophilic segment. Such adhesives are applicable to securing medical devices to human skin.

US Patent:

20120208974, Aug 16, 2012

Filed:

Aug 15, 2011

Appl. No.:

13/210038

Inventors:

Mahesh Sambasivam - Pennington NJ, US
Xiang Yu - San Antonio TX, US
Joseph C. Salamone - San Antonio TX, US
Ann Beal Salamone - San Antonio TX, US

Assignee:

ConvaTec Technologies Inc. - Las Vegas NV

International Classification:

C09J 133/26
C09J 177/02

US Classification:

526264, 5263076

Abstract:

The present invention relates to amphiphilic pressure sensitive adhesives, specifically, pressure sensitive adhesives with amphiphilic copolymers which improve adhesion under moist environment. The amphiphilic copolymers comprise at least one hydrophobic acrylic monomer or oligomer and at least one hydrophilic or amphiphilic monomer or oligomer. The present invention also relates to the use of such adhesives in securing medical devices to human skin.

Address:

14825 Omicron Dr APT 804, San Antonio, TX 78245

VIN:

4T1BE46K17U150563

Make:

TOYOTA

Model:

CAMRY/LE/XLE/SE

Year:

2007