Laura M Sanders

US Patent:

20120029111, Feb 2, 2012

Filed:

Jul 29, 2011

Appl. No.:

13/193642

Inventors:

Frank Chang - Suwanee GA, US
Robert Scott - Alpharetta GA, US
Jinyu Huang - Suwanee GA, US
Arturo N. Medina - Suwanee GA, US
Dawn A. Smith - Cullman AL, US
Laura Ann Sanders - Decatur GA, US
John Dallas Pruitt - Suwanee GA, US

International Classification:

G02C 7/04
B29D 11/00
G02B 1/12
C07F 7/10

US Classification:

523107, 556414, 264 11, 264 138

Abstract:

The present invention provides an amphiphilic polysiloxane prepolymer which comprises hydrophilic monomeric units derived from at least one hydrophilic vinylic monomer, polysiloxane crosslinking units derived from at least one polysiloxane crosslinker having at least two terminal ethylenically-unsaturated groups, dangling polysiloxane chains each of which is terminated with one ethylenically unsaturated group, and chain-transfer units derived from a chain transfer agent other than a RAFT agent. A prepolymer of the invention is suitable for making hydrogel contact lenses. The present invention is also related to hydrogel contact lenses made from an amphiphilic polysiloxane prepolymer of the invention and to processes for preparing an amphiphilic polysiloxane prepolymer of the invention and for making silicone hydrogel contact lenses.

US Patent:

20120088843, Apr 12, 2012

Filed:

Oct 5, 2011

Appl. No.:

13/253171

Inventors:

Frank Chang - Suwanee GA, US
Jinyu Huang - Suwanee GA, US
Laura Ann Sanders - Decatur GA, US

International Classification:

G02C 7/04
C08G 77/46
A01P 1/00
A61K 47/34
A01N 25/10
A61P 27/02
C08G 77/392
C08F 290/06

US Classification:

5147723, 525479, 523107

Abstract:

The invention provide a class of chain-extended polysiloxane crosslinkers which comprises (1) at least two polysiloxane segments, wherein each pair of adjacent polysiloxane segments is linked by one divalent organic radical which includes at least one pendant hydrophilic group (hydroxyl and/or carboxyl groups) or at least one dangling hydrophilic polymer chain and a di-thioether linkage —S-DR—S— in which DR is a divalent organic radical; and (2) two terminal ethylenically unsaturated groups. The present invention is also related to a polymer comprising crosslinking units derived from chain-extended polysiloxane crosslinker of the invention and to ophthalmic lenses comprising such a polymer.

US Patent:

20120285893, Nov 15, 2012

Filed:

May 10, 2012

Appl. No.:

13/468784

Inventors:

Lucas Moore - Marietta GA, US
Jean Robert Durand - Atlanta GA, US
Laura Sanders - Atlanta GA, US

International Classification:

B01D 21/01

US Classification:

210723

Abstract:

Methods for removing one or more contaminants from an aqueous stream comprising: adding one or more hydraulic binders and one or more promoters to the aqueous stream, and separating the contaminants from the aqueous stream are provided. The methods may be used for removing contaminants that are arsenic-based, selenium-based, cadmium-based, zinc-based, mercury-based, iron-based, chromium-based and/or phosphate-based.

US Patent:

20140005430, Jan 2, 2014

Filed:

Aug 30, 2013

Appl. No.:

14/014631

Inventors:

- Basel, CH
Robert Scott - Alpharetta GA, US
Jinyu Huang - Suwanee GA, US
Arturo N. Medina - Suwanee GA, US
Dawn A. Smith - Rotorua, NZ
Laura A. Sanders - Decatur GA, US
John Dallas Pruitt - Suwanee GA, US

Assignee:

Novartis AG - Basel

International Classification:

C08G 77/388

US Classification:

556420

Abstract:

The present invention provides an amphiphilic polysiloxane prepolymer which comprises hydrophilic monomeric units derived from at least one hydrophilic vinylic monomer, polysiloxane crosslinking units derived from at least one polysiloxane crosslinker having at least two terminal ethylenically-unsaturated groups, dangling polysiloxane chains each of which is terminated with one ethylenically unsaturated group, and chain-transfer units derived from a chain transfer agent other than a RAFT agent. A prepolymer of the invention is suitable for making hydrogel contact lenses. The present invention is also related to hydrogel contact lenses made from an amphiphilic polysiloxane prepolymer of the invention and to processes for preparing an amphiphilic polysiloxane prepolymer of the invention and for making silicone hydrogel contact lenses.

US Patent:

20160060147, Mar 3, 2016

Filed:

Apr 24, 2014

Appl. No.:

14/786370

Inventors:

- Helsinski, FI
Laura Sanders - Atlanta GA, US

Assignee:

Kemira Oyj - Helsinki

International Classification:

C02F 1/68
C08F 228/02

Abstract:

Scale-inhibiting polymers, compositions comprising the scale-inhibiting polymers and methods for preventing scale formation in circulating fluid are provided. The scale-inhibiting polymers comprise two or more recurring monomers wherein in at least one recurring monomer is an allyl-sulfonate-containing monomer, and at least one recurring monomer is a styrene-sulfonate-containing monomer. The polymers, compositions and methods may be used in industrial processes including metal extraction from mineral ores.

US Patent:

20150152228, Jun 4, 2015

Filed:

Feb 10, 2015

Appl. No.:

14/618135

Inventors:

- Basel, CH
Jinyu Huang - Suwanee GA, US
Laura Ann Sanders - Johns Creek GA, US

International Classification:

C08G 77/46
G02B 1/04

Abstract:

The invention provide a class of chain-extended polysiloxane crosslinkers which comprises (1) at least two polylsiloxane segments, wherein each pair of adjacent polysiloxane segments is linked by one divalent organic radical which includes at least one pendant hydrophilic group (hydroxyl and/or carboxyl groups) or at least one dangling hydrophilic polymer chain and a di-thioether linkage —S-DR-S— in which DR is a divalent oranic radical; and (2) two terminal ethylenically unsaturated groups. The present invention is also related to a polymer comprising crosslinking units derived from chain-extended polysiloxane crosslinker of the invention and to ophthalmic lenses comprising such a polymer.

US Patent:

20150153482, Jun 4, 2015

Filed:

Feb 9, 2015

Appl. No.:

14/617310

Inventors:

- Basel, CH
Robert Scott - Alpharetta GA, US
Jinyu Huang - Suwanee GA, US
Arturo N. Medina - Suwanee GA, US
Dawn A. Smith - Rotorua, NZ
Laura A. Sanders - Johns Creek GA, US
John Dallas Pruitt - Suwanee GA, US

International Classification:

G02B 1/04
C08G 77/388

Abstract:

The present invention provides an amphiphilic polysiloxane prepolymer which comprises hydrophilic monomeric units derived from at least one hydrophilic vinylic monomer, polysiloxane crosslinking units derived from at least one polysiloxane crosslinker having at least two terminal ethylenically-unsaturated groups, dangling polysiloxane chains each of which is terminated with one ethylenically unsaturated group, and chain-transfer units derived from a chain transfer agent other than a RAFT agent. A prepolymer of the invention is suitable for making hydrogel contact lenses. The present invention is also related to hydrogel contact lenses made from an amphiphilic polysiloxane prepolymer of the invention and to processes for preparing an amphiphilic polysiloxane prepolymer of the invention and for making silicone hydrogel contact lenses.