Yanjie Xu

US Patent:

8598266, Dec 3, 2013

Filed:

Mar 25, 2011

Appl. No.:

13/322082

Inventors:

Yanjie Xu - Longmont CO, US

Assignee:

Empire Technology Development LLC - Wilmington DE

International Classification:

C09D 5/02

US Classification:

524521, 524432, 524505, 525 88, 525 89, 525 90, 977778

Abstract:

The present technology relates to compositions comprising a copolymer comprising a poly(Calkylene oxide) and a cationic polyacrylamide, and a plurality of nanoparticles of titanium dioxide, zinc oxide or a mixture thereof. The compositions may serve as flocculating agents to remove neutral and negatively charged nanoparticle pollutants from gasses, including air, and liquids such as water.

US Patent:

20060194927, Aug 31, 2006

Filed:

Feb 13, 2004

Appl. No.:

10/544322

Inventors:

Douglas Gin - Longmont CO, US
Weiqiang Gu - East Taunton MA, US
Yanjie Xu - Boulder CO, US
Cory Pecinovsky - Longmont CO, US

International Classification:

C08F 114/16

US Classification:

525330700

Abstract:

The invention provides cross-linked lyotropic liquid crystal (LLC) copolymers having ordered nanometer-sized pores lined with functional groups. The copolymers are formed by copolymerizing LLC monomers with strong LLC character and functionalized monomers with no or weak LLC character to form an LLC phase. Both the LLC monomers and the functionalized monomers contain hydrogen-bonding groups and hydrogen-bonding is believed to assist in the formation of the LLC phase of the blended mixture. Different classes of functional groups useful for the invention include, but are not limited to, acidic groups, basic groups, catalytic groups, oxidizing agents, reducing agents, polymerization initiators, binding agents, optically active groups, and electrically active groups. The invention also provides methods for making the cross-linked LLC copolymers of the invention. In these methods, the LLC monomer and the functionalized monomer are blended in a polar solvent, thereby allowing self-assembly of the first and second monomer into an LLC phase. The LLC phase in then cross-linked with retention of the LLC microstructure.

US Patent:

20110039467, Feb 17, 2011

Filed:

Aug 9, 2010

Appl. No.:

12/806267

Inventors:

Yanjie Xu - Longmont CO, US

Assignee:

H&C Chemical - Longmont CO

International Classification:

B32B 5/02
C07D 233/54
C07D 245/02
C07C 211/64
C07F 9/06
C07C 53/00
C07D 213/20
C09K 21/12
C09K 21/10
C08K 5/52
C08K 5/3417
C08K 5/3432
C08K 5/34
D06M 13/244
D06M 13/352
D06M 13/355
D21H 25/00

US Classification:

442141, 5483411, 540470, 564289, 558207, 562512, 546347, 252601, 524145, 524 99, 524106, 524154, 524 98, 524186, 8 941 R, 8 941 P, 162159, 442147, 442146

Abstract:

The present invention relates to the use of ionic liquids as flame retardants. The compounds of the invention may be used as flame retardants in various materials without causing damage to the environment and or health of humans or animals. Ionic liquid flame retardants maybe applied alone or in combination with traditional flame retardants. Ionic liquid flame retardants can be applied to finish textile, plastic, leather, paper, rubber, or as wild fire flame retardants.

US Patent:

20110073331, Mar 31, 2011

Filed:

Nov 16, 2010

Appl. No.:

12/947377

Inventors:

Yanjie Xu - Longmont CO, US

International Classification:

A62C 2/00
C09K 21/00
C07D 233/54
C07D 245/02
C07C 211/00
C07F 9/09
C08K 5/521
C08K 5/3445
C08K 5/34
C08K 5/17
B05D 3/10

US Classification:

169 46, 252608, 252609, 252607, 5483411, 540470, 564289, 558 70, 524148, 524105, 524 86, 524236, 4273933

Abstract:

The present invention relates to the use of ionic liquids as flame retardants. The compounds of the invention may be used as flame retardants in various materials without causing damage to the environment and or health of humans or animals. Ionic liquid flame retardants maybe applied alone or in combination with traditional flame retardants. Ionic liquid flame retardants can be applied to finish textile, plastic, leather, paper, rubber or as wild fire flame retardants.

US Patent:

20120192856, Aug 2, 2012

Filed:

Feb 1, 2011

Appl. No.:

13/145687

Inventors:

Yanjie Xu - Longmont CO, US

International Classification:

F24J 2/34

US Classification:

126561

Abstract:

A solar pond includes a upper convection zone including an ionic liquid; a non-convection zone; and a lower convection zone. The ionic liquid may be an imidazolium salt, an ammonium salt, a pyridinium salt, a piperidium salt, or a phosphonium salt.

US Patent:

20220282066, Sep 8, 2022

Filed:

Feb 9, 2022

Appl. No.:

17/650448

Inventors:

- Greenwood Village CO, US
Yanjie Xu - Greenwood Village CO, US

International Classification:

C08K 5/50
C08K 5/521
C08K 5/3445
C08J 3/20
C08K 7/14
C08K 7/06
C08K 3/34

Abstract:

The present disclosure provides a polymeric composition including a thermoplastic polymer and an ionic liquid compound, wherein the ionic liquid compound improves the melt flow rate of the polymeric composition. The present disclosure also provides a method of preparing a polymeric composition with improved melt flow rate by mixing an ionic liquid compound with a thermoplastic polymer to obtain the polymeric composition. In some aspects, the polymeric composition includes a recycled polymer.

US Patent:

20210253827, Aug 19, 2021

Filed:

Feb 14, 2020

Appl. No.:

16/791601

Inventors:

- Greenwood Village CO, US
Yanjie Xu - Greenwood Village CO, US

International Classification:

C08K 5/50
C07C 211/63
C07F 9/54
C07D 233/58
C08K 5/521
C08K 5/3445
C08J 3/20

Abstract:

The present disclosure provides a polymeric composition including a thermoplastic polymer and an ionic liquid compound, wherein the ionic liquid compound improves the melt flow rate of the polymeric composition. The present disclosure also provides a method of preparing a polymeric composition with improved melt flow rate by mixing an ionic liquid compound with a thermoplastic polymer to obtain the polymeric composition.

US Patent:

20150353832, Dec 10, 2015

Filed:

Jan 18, 2014

Appl. No.:

14/158790

Inventors:

- Longmont CO, US
Yanjie Xu - Longmont CO, US

Assignee:

H & C Scientific Resources International, LLC - Longmont CO

International Classification:

C09K 21/12
D21H 17/10
C14C 9/00
C08K 5/5313

Abstract:

The present invention relates to the use of phosphinate ionic liquids as flame retardants and also as a melt reduction agent for polymer processing. The compounds of the invention may be used as flame retardants in various materials without causing damage to the environment and or health of humans or animals. Ionic liquid flame retardants maybe applied alone or in combination with traditional flame retardants. Ionic liquid flame retardants can be applied to finish textile, plastic, leather, paper, rubber or as wild fire flame retardants.