Paul R Shields

US Patent:

6472456, Oct 29, 2002

Filed:

Nov 3, 1999

Appl. No.:

09/502239

Inventors:

Douglas Wayne Horsey - Briarcliff Manor NY
Stephen Mark Andrews - New Fairfield CT
Leonard Harris Davis - New City NY
Robert Leo Gray - West Lafayette IN
Anunay Gupta - Edison NJ
Bruce Vincent Hein - Marietta GA
Joseph Stephen Puglisi - Crompond NY
Ramanathan Ravichandran - Nanuet NY
Paul Shields - Rivervale NJ
Rangarajan Srinivasan - Tarrytown NY

Assignee:

Ciba Specialty Chemicals Corp. - Tarrytown NY

International Classification:

C08K 53415

US Classification:

524 99, 524141, 524145, 524415, 524 91

Abstract:

Polyolefins, especially polypropylene, can be made flame retardant by the incorporation therein of a synergistic mixture of a selected hindered amine substituted by an alkoxy, cydoalkoxy or hydroxyalkoxy moiety and a selected organic or inorganic brominated and/or phosphorus containing flame retardant, such as ammonium polyphosphate or decabromodiphenyl oxide wherein the amount of organic or inorganic flame retardant required to achieve an acceptable level of flame retardancy is significantly reduced compared to that needed when the hindered amine is not present.

US Patent:

6599963, Jul 29, 2003

Filed:

Aug 1, 2001

Appl. No.:

09/919973

Inventors:

Douglas Wayne Horsey - Briarcliff Manor NY
Stephen Mark Andrews - New Fairfield CT
Leonard Harris Davis - New City NY
Robert Leo Gray - Ridgefield CT
Anunay Gupta - Holmdel NJ
Bruce Vincent Hein - Marietta GA
Joseph Stephen Puglisi - Crompound NY
Ramanathan Ravichandran - Suffern NY
Paul Shields - Rivervale NJ
Rangarajan Srinivasan - Tarrytown NY

Assignee:

Ciba Specialty Chemicals Corporation - Tarrytown NY

International Classification:

C08K 534

US Classification:

524100, 524101, 524102, 524103, 524104, 524105, 524126, 524148, 524151

Abstract:

Hindered amine compounds containing a group of the formula where G and G are independently alkyl of 1 to 4 carbon atoms or are together pentamethylene, Z and Z are each methyl, or Z and Z together form a linking moiety which may additionally be substituted by an ester, ether, amide, amino, carboxy or urethane group, and E is alkoxy, cycloalkoxy, aralkoxy, aryloxy, âOâCOâOZ , âOâSi(Z ) , âOâPO(OZ ) or âOâCH âOZ where Z , Z , Z and Z are selected from the group consisting of hydrogen, an aliphatic, araliphatic and aromatic moiety, when added to a wide variety of polymeric substrates, particularly polyolefins and styrenic polymers, surprisingly bestow flame retardant properties to such compositions. Polyolefins, especially polypropylene, can be made flame retardant by the incorporation therein of a synergistic mixture of a selected hindered amine substituted by an alkoxy, cycloalkoxy or hydroxyalkoxy moiety and a selected organic or inorganic brominated and/or phosphorus containing flame retardant, such as ammonium polyphosphate or decabromodiphenyl oxide wherein the amount of organic or inorganic flame retardant required to achieve an acceptable level of flame retardancy is significantly reduced compared to that needed when the hindered amine is not present.

US Patent:

6800678, Oct 5, 2004

Filed:

Dec 19, 2002

Appl. No.:

10/323575

Inventors:

Douglas Wayne Horsey - Briarcliff Manor NY
Stephen Mark Andrews - New Fairfield CT
Leonard Harris Davis - New City NY
Robert Leo Gray - West Lafayette IN
Anunay Gupta - Edison NJ
Bruce Vincent Hein - Marietta GA
Joseph Stephen Puglisi - Crompond NY
Ramanathan Ravichandran - Nanuet NY
Paul Shields - Rivervale NJ
Rangarajan Srinivasan - Tarrytown NY

Assignee:

Ciba Specialty Chemicals Corporation - Tarrytown NY

International Classification:

C08K 53462

US Classification:

524100, 524 99, 524127, 524416, 524469

Abstract:

Polyolefins, especially polypropylene, can be made flame retardant by the incorporation therein of a synergistic mixture of a selected hindered amine substituted by an alkoxy, cycloalkoxy or hydroxyalkoxy moiety and a selected organic or inorganic brominated and/or phosphorus containing flame retardant, such as ammonium polyphosphate or decabromodiphenyl oxide wherein the amount of organic or inorganic flame retardant required to achieve an acceptable level of flame retardancy is significantly reduced compared to that needed when the hindered amine is not present.

US Patent:

20030149143, Aug 7, 2003

Filed:

Jul 29, 2002

Appl. No.:

10/207674

Inventors:

Douglas Horsey - Briarcliff Manor NY, US
Stephen Andrews - New Fairfield CT, US
Leonard Davis - New City NY, US
Darrell Dyas - Kennesaw GA, US
Robert Gray - West Lafayette IN, US
Anunay Gupta - Edison NJ, US
Bruce Hein - Marietta GA, US
Joseph Puglisi - Crompond NY, US
Ramanathan Ravichandran - Nanuet NY, US
Paul Shields - Rivervale NJ, US
Rangarajan Srinivasan - Tarrytown NY, US

International Classification:

C08J003/00
C08K005/34
C08L001/00

US Classification:

524/099000, 524/102000, 524/103000

Abstract:

Polyolefins, especially polypropylene, can be made flame retardant by the incorporation therein of a synergistic mixture of a selected hindered amine substituted by an alkoxy, cycloalkoxy or hydroxyalkoxy moiety and a selected organic or inorganic brominated and/or phosphorus containing flame retardant, such as ammonium polyphosphate or decabromodiphenyl oxide wherein the amount of organic or inorganic flame retardant required to achieve an acceptable level of flame retardancy is significantly reduced compared to that needed when the hindered amine is not present.