Patents by Inventor Herbert Benson Scher
Herbert Benson Scher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8173159Abstract: A novel microcapsule comprising an encapsulated material which is enclosed within a solid permeable shell of a polymer resin having surface modifying compounds capable of reacting with isocyanate incorporated therein is disclosed. The process for producing such microcapsules is likewise disclosed.Type: GrantFiled: June 5, 2001Date of Patent: May 8, 2012Assignee: Syngenta LimitedInventors: Herbert Benson Scher, Jinling Chen, Isabelle Mazeaud, David Braun Kanne, Ian Malcolm Shirley, Philip Wade, John Christopher Padget, Anne Waller
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Patent number: 7271200Abstract: A novel emulsion comprising a material which is stabilised by a polymer resin precursor having interface active molecules incorporated therein by reaction from poorly or non-surface active materials is disclosed. The process for producing such emulsions is likewise disclosed.Type: GrantFiled: March 15, 2004Date of Patent: September 18, 2007Assignee: Syngenta LimitedInventors: Herbert Benson Scher, Patrick Joseph Mulqueen, Nicholas David Green, Catherine Julia Piper
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Patent number: 7199185Abstract: Reactive polymeric surfactants are disclosed, and their use in processes for preparation of microcapsules, and in stabilising emulsions. The surfactants are random graft polymers or block copolymers which contain both hydrophobic and hydrophilic units and in which the hydrophobic unit includes a hydrophilic cross-linking unit which reacts with (a) a wall forming ingredient in a microencapsulation process, or (b) an ingredient in the disperse phase of an emulsion.Type: GrantFiled: June 10, 2002Date of Patent: April 3, 2007Assignee: Syngenta LimitedInventors: Alexander Mark Heming, Patrick Joseph Mulqueen, Herbert Benson Scher, Ian Malcolm Shirley
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Publication number: 20040197357Abstract: Reactive polymeric surfactants are disclosed, and their use in processes for preparation of microcapsules, and in stabilising emulsions. The surfactants are random graft polymers or block copolymers which contain both hydrophobic and hydrophilic units and in which the hydrophobic unit includes a hydrophilic cross-linking unit which reacts with (a) a wall forming ingredient in a microencapsulation process, or (b) an ingredient in the disperse phase of an emulsion.Type: ApplicationFiled: May 27, 2004Publication date: October 7, 2004Inventors: Alexander Mark Heming, Patrick Joseph Mulqueen, Herbert Benson Scher, Ian Malcolm Shirley
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Publication number: 20040176479Abstract: A novel emulsion comprising a material which is stabilised by a polymer resin precursor having interface active molecules incorporated therein by reaction from poorly or non-surface active materials is disclosed. The process for producing such emulsions is likewise disclosed.Type: ApplicationFiled: March 15, 2004Publication date: September 9, 2004Inventors: Herbert Benson Scher, Patrick Joseph Mulqueen, Nicholas David Green, Catherine Julia Piper
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Publication number: 20040076909Abstract: A process is provided for producing a polymeric layer having a desired image thereon or a three dimensional article comprising a number of such layers in which a layer of a liquid photocurable composition which comprises photo colourable particles is cured by light and selected areas thereof are irradiated with light of a different dose, thereby forming the desired image which composition comprises particles dispersed in it which are micro-capsules containing a photosensitive colour changing composition within a barrier layer which is substantially impermeable to the components of the colour changing composition or are solid particles comprising an immobilised photosensitive colour changing composition. The process permits the use of the same initiating mechanism to cure the resin and to change the colour of the particles.Type: ApplicationFiled: October 10, 2003Publication date: April 22, 2004Inventors: Dianne Beth Shirley, Ian Malcolm Shirley, Ajay Haridas Popat, Martin Russell Edwards, Kevin Thomas McAloon, Herbert Benson Scher
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Patent number: 6710092Abstract: A novel emulsion comprising a material which is stabilized by a polymer resin precursor having interface active molecules incorporated therein by reaction from poorly or non-surface active materials is disclosed. The process for producing such emulsions is likewise disclosed.Type: GrantFiled: June 5, 2001Date of Patent: March 23, 2004Assignee: Syngenta LimitedInventors: Herbert Benson Scher, Patrick Joseph Mulqueen, Nicholas David Green, Catherine Julia Piper
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Patent number: 6649311Abstract: A process is provided for producing a polymeric layer having a desired image thereon or a three dimensional article comprising a number of such layers in which a layer of a liquid photocurable composition which comprises photo colorable particles is cured by light and selected areas thereof are irradiated with light of a different dose, thereby forming the desired image which composition comprises particles dispersed in it which are micro-capsules containing a photosensitive color changing composition within a barrier layer which is substantially impermeable to the components of the color changing composition or are solid particles comprising an immobilized photosensitive color changing composition. The process permits the use of the same initiating mechanism to cure the resin and to change the color of the particles.Type: GrantFiled: May 2, 2001Date of Patent: November 18, 2003Assignee: Vantico LimitedInventors: Dianne Beth Shirley, Ian Malcolm Shirley, Ajay Haridas Popat, Martin Russell Edwards, Kevin Thomas McAloon, Herbert Benson Scher
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Patent number: 6555122Abstract: Solid water-dispersible compositions containing microencapsulated pesticides are produced by spray-drying an aqueous suspension of said pesticides in the presence of a water-soluble polymer.Type: GrantFiled: May 13, 2002Date of Patent: April 29, 2003Assignee: Syngenta LimitedInventors: Ray Jia Ruey Lo, Jin Ling Chen, Herbert Benson Scher, Juanita Elena Van Koppenhagen, Ian Malcolm Shirley
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Patent number: 6544540Abstract: Microcapsules formed from an aminoplast shell wall and an encapsulated ingredient or ingredients enclosed within the wall in which the wall contains a base-cleavable ester moiety. These capsules have been found to be sensitive to the presence of base such that in the presence of base, the capsule walls are relatively quickly disintegrated or degraded so as to produce a relatively quick release of the encapsulated materials. Microcapsules of this invention are particularly suitable for use in controlling insects having an alkaline gut such as certain lepidoptera in that the capsule shell wall may be designed so as to quickly disintegrate under the alkaline conditions present in the gut of the insect thus providing a microcapsule which is safe to handle but which is selectively effective against certain undesirable insects while not harmful to beneficial insects or insects which do not feed on the capsule materials.Type: GrantFiled: July 28, 1999Date of Patent: April 8, 2003Assignee: Syngenta LimitedInventors: Juanita Elena Van Koppenhagen, Herbert Benson Scher, Kuo-Shin Lee, Ian Malcolm Shirley, Philip Wade, Richard Follows
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Patent number: 6485736Abstract: A novel microcapsule comprising a liquid core material which is substantially insoluble in water and enclosed within a solid permeable shell of a polymer resin containing disulfide linkages is disclosed. The process for producing such microcapsules is likewise disclosed.Type: GrantFiled: September 7, 2000Date of Patent: November 26, 2002Assignee: Syngenta Ltd.Inventors: Ian Malcolm Shirley, Juanita Elena Van Koppenhagen, Herbert Benson Scher, Richard Follows, Philip Wade, Fergus Gerard Paul Earley, Dianne Beth Shirley
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Publication number: 20020164363Abstract: Solid water-dispersible compositions containing microencapsulated pesticides are produced by spray-drying an aqueous suspension of said pesticides in the presence of a water-soluble polymer.Type: ApplicationFiled: May 13, 2002Publication date: November 7, 2002Inventors: Ray Jia Ruey Lo, Jin Ling Chen, Herbert Benson Scher, Juanita Elena Van Koppenhagen, Ian Malcolm Shirley
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Publication number: 20020136773Abstract: A novel microcapsule comprising an encapsulated material which is enclosed within a solid permeable shell of a polymer resin having surface modifying compounds capable of reacting with isocyanate incorporated therein is disclosed. The process for producing such microcapsules is likewise disclosed.Type: ApplicationFiled: June 5, 2001Publication date: September 26, 2002Inventors: Herbert Benson Scher, Jinling Chen, Isabelle Mazeaud, David Braun Kanne, Ian Malcolm Shirley, Philip Wade, John Christopher Padget, Anne Waller
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Patent number: 6419942Abstract: Solid water-dispersible compositions containing microencapsulated pesticides are produced by spray-drying an aqueous suspension of said pesticides in the presence of a water-soluble polymer, preferably polyvinyl alcohol.Type: GrantFiled: May 17, 2000Date of Patent: July 16, 2002Assignee: Syngenta LimitedInventors: Ray Jia Ruey Lo, Jin Ling Chen, Herbert Benson Scher, Juanita Elena Van Koppenhagen, Ian Malcolm Shirley
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Publication number: 20020068169Abstract: Microcapsules of a microcapsule formed of a polyurea shell wall and an encapsulated ingredient or ingredients enclosed within the wall, the wall comprising at least one oligomeric acetal having the moiety 1Type: ApplicationFiled: December 11, 2001Publication date: June 6, 2002Applicant: Syngenta LimitedInventors: Juanita Elena Van Koppenhagen, Herbert Benson Scher, Kuo-Shin Lee, Ian Malcolm Shirley, Philip Wade, Richard Follows
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Publication number: 20020040065Abstract: A novel emulsion comprising a material which is stabilized by a polymer resin precursor having interface active molecules incorporated therein by reaction from poorly or non-surface active materials is disclosed. The process for producing such emulsions is likewise disclosed.Type: ApplicationFiled: June 5, 2001Publication date: April 4, 2002Inventors: Herbert Benson Scher, Patrick Joseph Mulqueen, Nicholas David Green, Catherine Julia Piper
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Publication number: 20020037306Abstract: Microcapsules formed from an aminoplast shell wall and an encapsulated ingredient or ingredients enclosed within the wall in which the wall contains a base-cleavable ester moiety. These capsules have been found to be sensitive to the presence of base such that in the presence of base, the capsule walls are relatively quickly disintegrated or degraded so as to produce a relatively quick release of the encapsulated materials. Microcapsules of this invention are particularly suitable for use in controlling insects having an alkaline gut such as certain lepidoptera in that the capsule shell wall may be designed so as to quickly disintegrate under the alkaline conditions present in the gut of the insect thus providing a microcapsule which is safe to handle but which is selectively effective against certain undesirable insects while not harmful to beneficial insects or insects which do not feed on the capsule materials.Type: ApplicationFiled: February 8, 2001Publication date: March 28, 2002Inventors: Juanita E. Van Koppenhagen, Herbert Benson Scher, Kuo-Shin Lee, Chi Chang Lee, Ian Malcolm Shirley, Philip Wade, Richard Follows
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Patent number: 6337130Abstract: Microcapsules of a microcapsule formed of a polyurea shell wall and an encapsulated ingredient or ingredients enclosed within the wall, the wall comprising at least one oligomeric acetal having the moiety in which R is (a) a moiety containing a chain of from 5 to about 40 optionally substituted carbon atoms, (b) a moiety containing a chain of from 4 to about 40 carbon atoms and one or more internally linked oxygen or sulfur atoms or —NH-groups, or (c) an optionally substituted ethylene or propylene moiety Z is (a) an optionally substituted phenyl group, (b) an optionally substituted C1-C20 alkyl, C2-C20 alkenyl, C3-C8 cycloalkyl or C5-C8 cycloalkenyl group, or (c) benzoyl, and n is 1 if R is (a) or (b), or is 2-20 if R is (c).Type: GrantFiled: July 29, 1999Date of Patent: January 8, 2002Assignee: Zeneca LimitedInventors: Juanita Elena Van Koppenhagen, Herbert Benson Scher, Kuo-Shin Lee, Ian Malcolm Shirley, Philip Wade, Richard Follows