Patents by Inventor William R. Shiang
William R. Shiang 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).
-
Patent number: 6900285Abstract: A polymer comprising repeat units of the formula: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more heteroatoms of S, N, O, P or Si or both R1 may form, with the 9-carbon of the fluorene ring, a C5-20 ring structure containing one or more heteroatoms of S, N, or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C1-20 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbyloxycarbonyl, hydrocarbylcarbonyloxy, or cyano; a is independently in each occurrence a number from about 0 to about 1; m is a number from about 1 to about 2; and n is a number from about 3 or greater.Type: GrantFiled: December 13, 2002Date of Patent: May 31, 2005Assignee: Dow Global Technologies Inc.Inventors: Edmund P. Woo, William R. Shiang, Michael Inbasekaran, Gordon R. Roof, Mark T. Bernius, Weishi Wu
-
Publication number: 20030208032Abstract: A polymer comprising repeat units of the formula: 1Type: ApplicationFiled: December 13, 2002Publication date: November 6, 2003Inventors: Edmund P. Woo, William R. Shiang, Michael Inbasekaran, Gordon R. Roof, Mark T. Bernius, Weishi Wu
-
Patent number: 6593450Abstract: The invention relates to 2,7-substituted-9-substituted fluorenes and 9-substituted fluorene oligomers and polymers. The fluorenes, oligomers and polymers are substituted at the 9-position with two hydrocarbyl moieties which may optionally contain one or more of sulfur, nitrogen, oxygen, phosphorous or silicon heteroatoms; a C5-20 ring structure formed with the 9-carbon on the fluorene ring or a C4-20 ring structure formed with the 9-carbon containing one or more heteroatoms of sulfur, nitrogen or oxygen; or a hydrocarbylidene moiety. In one embodiment, the fluorenes are substituted at the 2- and 7-positions with aryl moieties which may further be substituted with moieties which are capable of crosslinking or chain extension or a trialkylsiloxy moiety. The fluorene polymers and oligomers may be substituted at the 2- and 7′-positions. The monomer units of the fluorene oligomers and polymers are bound to one another at the 2- and 7′-positions.Type: GrantFiled: January 5, 2001Date of Patent: July 15, 2003Assignee: Dow Global Technologies Inc.Inventors: Edmund P. Woo, William R. Shiang, Michael Inbasekaran, Gordon R. Roof
-
Patent number: 6514632Abstract: A compound of the formula: and compounds of the formulas: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-16 hydrocarbyl carbonyloxy, C4-16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-20 ring structure or a C4-20 ring structure containing one or more heteroatoms of S, N or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C120 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with di(C1-20 alkyl)amino, C1-20 hydrocarbyloxy or C1-20 hydrocarbyl or tri(C1-10 alkyl)siloxy; a is independently in each occurrence 0 or 1; X is independently in each occurrence a halogen moiety; and Z is independently in each occurrence —B(OH)2, —B(OR4)2 or wherein R4 is independently in each occurrence a C1-10Type: GrantFiled: September 13, 2000Date of Patent: February 4, 2003Assignee: Dow Global Technologies Inc.Inventors: Edmund P. Woo, William R. Shiang, Michael Inbasekaran, Gordon R. Roof, Mark T. Bernius, Weishi Wu
-
Patent number: 6512083Abstract: A compound of the formula: and compounds of the formulas: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-16 hydrocarbyl carbonyloxy, C4-16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-20 ring structure or a C4-20 ring structure containing one or more heteroatoms of S, N or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C1-20 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with di(C1-20 alkyl)amino, C1-20 hydrocarbyloxy or C1-20 hydrocarbyl or tri(C1-10 alkyl)siloxy; a is independently in each occurrence 0 or 1; X is independently in each occurrence a halogen moiety; and Z is independently in each occurrence —B(OH)2, —B(OR4)2 or wherein R4 is independently in each occurrence a C1-Type: GrantFiled: September 13, 2000Date of Patent: January 28, 2003Assignee: Dow Global Technologies Inc.Inventors: Edmund P. Woo, William R. Shiang, Michael Inbasekaran, Gordon R. Roof, Mark T. Bernius, Weishi Wu
-
Patent number: 6362310Abstract: A compound of the formula: and compounds of the formulas: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-16 hydrocarbyl carbonyloxy, C14-16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-20 ring structure or a C4-20 ring structure containing one or more heteroatoms of S, N or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C1-20 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with di(C1-20 alkyl)amino, C1-20 hydrocarbyloxy or C1-20 hydrocarbyl or tri(C1-10 alkyl)siloxy; a is independently in each occurrence 0 or 1; X is independently in each occurrence a halogen moiety; and Z is independently in each occurrence —B(OH)2, —B(OR4)2 or wherein R4 is independently in each occurrence a C1-1Type: GrantFiled: September 13, 2000Date of Patent: March 26, 2002Inventors: Edmund P. Woo, Michael Inbasekaran, William R. Shiang, Gordon R. Roof, Mark T. Bernius, Weishi Wu
-
Publication number: 20010053842Abstract: The invention relates to 2,7-substituted-9-substituted fluorenes and 9-substituted fluorene oligomers and polymers. The fluorenes, oligomers and polymers are substituted at the 9-position with two hydrocarbyl moieties which may optionally contain one or more of sulfur, nitrogen, oxygen, phosphorous or silicon heteroatoms; a C5-20 ring structure formed with the 9-carbon on the fluorene ring or a C4-20 ring structure formed with the 9-carbon containing one or more heteroatoms of sulfur, nitrogen or oxygen; or a hydrocarbylidene moiety. In one embodiment, the fluorenes are substituted at the 2- and 7-positions with aryl moieties which may further be substituted with moieties which are capable of crosslinking or chain extension or a trialkylsiloxy moiety. The fluorene polymers and oligomers may be substituted at the 2- and 7′-positions. The monomer units of the fluorene oligomers and polymers are bound to one another at the 2- and 7′-positions.Type: ApplicationFiled: January 5, 2001Publication date: December 20, 2001Inventors: Edmund P. Woo, William R. Shiang, Michael Inbasekaran, Gordon R. Roof
-
Patent number: 6255447Abstract: The invention relates to 2,7-substituted-9-substituted fluorenes and 9-substituted fluorene oligomers and polymers. The fluorenes, oligomers and polymers are substituted at the 9-position with two hydrocarbyl moieties which may optionally contain one or more of sulfur, nitrogen, oxygen, phosphorous or silicon heteroatoms; a C5-20 ring structure formed with the 9-carbon on the fluorene ring or a C4-20 ring structure formed with the 9-carbon containing one or more heteroatoms of sulfur, nitrogen or oxygen; or a hydrocarbylidene moiety. In one embodiment, the fluorenes are substituted at the 2- and 7-positions with aryl moieties which may further be substituted with moieties which are capable of crosslinking or chain extension or a trialkylsiloxy moiety. The fluorene polymers and oligomers may be substituted at the 2- and 7′-positions. The monomer units of the fluorene oligomers and polymers are bound to one another at the 2- and 7′-positions.Type: GrantFiled: May 21, 1999Date of Patent: July 3, 2001Assignee: The Dow Chemical CompanyInventors: Edmund P. Woo, Michael Inbasekaran, William R. Shiang, Gordon R. Roof
-
Patent number: 6255449Abstract: A compound of the formula: and compound of the formulas: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-16 hydrocarbyl carbonyloxy, C4-16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-20 ring structure or a C4-20 ring structure containing one or more heteroatoms of S, N or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C1-20 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with di(C1-20 alkyl)amino, C1-20 hydrocarbyloxy or C1-20 hydrocarbyl or tri(C1-10 alkyl)siloxy; a is independently in each occurrence 0 or 1; X is independently in each occurrence a halogen moiety; and Z is independently in each occurrence —B(OH)2, —B(OR4)2 or wherein R4 is independently in each occurrence a C1-10 alkylType: GrantFiled: September 13, 2000Date of Patent: July 3, 2001Assignee: The Dow Chemical CompanyInventors: Edmund P. Woo, Michael Inbasekaran, William R. Shiang, Gordon R. Roof, Mark T. Bernius, Weishi Wu
-
Patent number: 6169163Abstract: A compound of the formula: and compounds of the formulas: wherein R1 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-16 hydrocarbyl carbonyloxy, C4-16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-20 ring structure or a C4-20 ring structure containing one or more heteroatoms of S, N or O; R2 is independently in each occurrence C1-20 hydrocarbyl, C1-20 hydrocarbyloxy, C1-20 thioether, C1-20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with di(C1-20 alkyl)amino, C1-20 hydrocarbyloxy or C1-20 hydrocarbyl or tri(C1-10 alkyl)siloxy; a is independently in each occurrence 0 or 1; X is independently in each occurrence a halogen moiety; and Z is independently in each occurrence —B(OH)2, —B(OR4)2 or wherein R4 is independently in each occurrence a C1-10 alkylType: GrantFiled: May 21, 1997Date of Patent: January 2, 2001Assignee: The Dow Chemical CompanyInventors: Edmund P. Woo, Michael Inbasekaran, William R. Shiang, Gordon R. Roof, Mark T. Bernius, Weishi Wu
-
Patent number: 5962631Abstract: The invention relates to 2,7-substituted-9-substituted fluorenes and 9-substituted fluorene oligomers and polymers. The fluorenes, oligomers and polymers are substituted at the 9-position with two hydrocarbyl moieties which may optionally contain one or more of sulfur, nitrogen, oxygen, phosphorous or silicon heteroatoms; a C.sub.5-20 ring structure formed with the 9-carbon on the fluorene ring or a C.sub.4-20 ring structure formed with the 9-carbon containing one or more heteroatoms of sulfur, nitrogen or oxygen; or a hydrocarbylidene moiety. In one embodiment, the fluorenes are substituted at the 2- and 7-positions with aryl moieties which may further be substituted with moieties which are capable of crosslinking or chain extension or a trialkylsiloxy moiety. The fluorene polymers and oligomers may be substituted at the 2- and 7'-positions. The monomer units of the fluorene oligomers and polymers are bound to one another at the 2- and 7'-positions.Type: GrantFiled: December 19, 1997Date of Patent: October 5, 1999Assignee: The Dow Chemical CompanyInventors: Edmund P. Woo, William R. Shiang, Michael Inbasekaran, Gordon R. Roof
-
Patent number: 5948552Abstract: An organic electroluminescent device that comprises a substrate, a first conductive layer on the substrate, an electron-transporting and light-emitting layer, a second conductive layer adjacent the electron-transporting and light-emitting layer and remote from the first conductive layer, and a hole-conducting layer sandwiched between the first conductive layer and the electron-transporting and light-emitting layer. The hole-conducting layer comprises a poly(arylamine) including at least one compound of formula (I): ##STR1## In this: R is independently in each occurrence a C.sub.1-24 hydrocarbyl, hydrocarboxyl, hydrothiocarboxy, hydroarylcarboxy, or hydrothioarylcarboxy; Ar.sub.1 and Ar.sub.2 are independently in each occurrence a C.sub.6-18 aryl moiety optionally substituted with one or more C.sub.Type: GrantFiled: August 27, 1996Date of Patent: September 7, 1999Assignees: Hewlett-Packard Company, The Dow Chemical CompanyInventors: Homer Antoniadis, Daniel B. Roitman, William R. Shiang, Edmund P. Woo, Weishi Wu
-
Patent number: 5929194Abstract: The invention relates to poly(tertiary di- or polyarylamines) which have more than one aryl moiety which is further substituted with a moiety capable of chain extension or crosslinking. In another aspect, the invention relates to poly(tertiary di- or polyarylamines) which have more than one aryl moiety which is further substituted with a moiety capable of chain extension or crosslinking which are partially or completely crosslinked or chain extended. The invention further relates to films prepared from such chain extended or crosslinked poly(tertiary di- or polyarylamines). The invention further relates to electrophotographic devices and electroluminescent devices, such as polymeric light-emitting diodes, containing such films.Type: GrantFiled: October 27, 1997Date of Patent: July 27, 1999Assignee: The Dow Chemical CompanyInventors: Edmund P. Woo, Michael Inbasekaran, William R. Shiang, Gordon R. Roof
-
Patent number: 5728801Abstract: A poly(arylamine) composition comprising one or more compounds of Formula (I): ##STR1## wherein: R is independently in each occurrence a C.sub.1-24 hydrocarbyl, C.sub.1-24 hydrocarboxy, C.sub.1-24 hydrocarbylthiooxy, or C.sub.1-24 hydrocarbylcarboxyl;Ar.sup.1 and Ar.sup.2 are independently in each occurrence a C.sub.6-18 aryl moiety optionally substituted with a C.sub.1-12 hydrocarbyl, C.sub.1-12 hydrocarbyloxy, C.sub.1-12 hydrocarbylthiooxy, or C.sub.1-12 hydrocarbylcarboxyl;A is independently in each occurrence hydrogen or a halogen;x is independently in each occurrence a positive number from 0 to 1;n is independently in each occurrence a whole number of from 0 to 4; andm is a number of from about 5 to about 1000.Type: GrantFiled: August 13, 1996Date of Patent: March 17, 1998Assignee: The Dow Chemical CompanyInventors: Weishi Wu, Edmund P. Woo, William R. Shiang
-
Patent number: 5708130Abstract: The invention relates to 2,7-substituted-9-substituted fluorenes and 9-substituted fluorene oligomers and polymers. The fluorenes, oligomers and polymers are substituted at the 9-position with two hydrocarbyl moieties which may optionally contain one or more of sulfur, nitrogen, oxygen, phosphorous or silicon heteroatoms; a C.sub.5-20 ring structure formed with the 9-carbon on the fluorene ring or a C.sub.4-20 ring structure formed with the 9-carbon containing one or more heteroatoms of sulfur, nitrogen or oxygen; or a hydrocarbylidene moiety. In one embodiment, the fluorenes are substituted at the 2- and 7-positions with aryl moieties which may further be substituted with moieties which are capable of crosslinking or chain extension or a trialkylsiloxy moiety. The fluorene polymers and oligomers may be substituted at the 2- and 7'-positions. The monomer units of the fluorene oligomers and polymers are bound to one another at the 2- and 7'-positions.Type: GrantFiled: July 28, 1995Date of Patent: January 13, 1998Assignee: The Dow Chemical CompanyInventors: Edmund P. Woo, William R. Shiang, Michael Inbasekaran, Gordon R. Roof