Abstract: New polymers are provided that have non-carbon tetravalent species (Si, Ti, Ge, Zr, Sn) and photoimageable compositions that contain such polymers. Preferred polymers are organic, e.g. one or more polymer repeat units comprise carbon atom(s). Particularly preferred are polymers that comprise SiO2 or TiO2 repeat units and which can be highly useful as a resin component of resists imaged at short wavelengths such as sub-300 nm and sub-200 nm.
Type:
Grant
Filed:
June 20, 2008
Date of Patent:
September 27, 2011
Assignee:
Rohm and Haas Electronic Materials LLC
Inventors:
Anthony Zampini, Tao Zhang, Jaihyoung Lee
Abstract: New photoresist systems are provided that comprise an underlying processing (or barrier) layer composition and an overcoated photoresist layer. Systems of the invention can exhibit significant adhesion to SiON and other inorganic surface layers.
Abstract: Overcoating layer compositions are provided that are applied above a photoresist composition including for immersion lithography processing as well as non-immersion imaging.
Abstract: Telechelic unsaturated polymers suitable for conversion to functionalized derivatives such as polyols are prepared by metathesis of an unsaturated copolymer formed by addition polymerization of ethylene, a diene or alkyne and, optionally, one or more C3.20 ?-olefins.
Type:
Grant
Filed:
August 23, 2007
Date of Patent:
June 7, 2011
Assignee:
Dow Global Technologies LLC
Inventors:
Daniel J. Arriola, John R. Briggs, Francis J. Timmers, Nicole L. Wagner, Timothy T. Wenzel
Abstract: The present invention generally relates to a rotatable mixing device, a dynamic mixing apparatus, and a high throughput workflow system and dynamic mixing method employing the same.
Type:
Grant
Filed:
August 23, 2010
Date of Patent:
May 24, 2011
Assignee:
Dow Global Technologies LLC
Inventors:
Kishore K. Kar, Madan Somasi, Richard F. Cope
Abstract: The present invention relates to a turbidity calibration standard comprising: a number of from 1 to 5 sequentially-interfaced layers, wherein each layer independently comprises a light-permeable polymer or light-permeable interpolymer; a measured light transmission modulating amount of at least one light transmission modulator, which is distributed in any one or more of the layers; and a light-permeable container, which contains the layers and the at least one light transmission modulator. Also, the invention relates to methods of making and using the standard, and kits comprising the standard.
Type:
Grant
Filed:
August 21, 2008
Date of Patent:
November 30, 2010
Assignee:
Dow Global Technologies Inc.
Inventors:
Richard S. Harner, J. Keith Harris, William A. Heeschen, Mary Beth Seasholtz
Abstract: A process for characterizing a sample comprising a population of linear macromolecules of interest (104) and a population of long chain branched macromolecules of interest (103), the process including four steps. The first step is to provide a flow through separating medium (100) and a liquid eluant (101) in which the macromolecules of interest dissolve, the separating medium defining flow through channels (102), the eluant flow rate and the average diameter of the channels being in a range so that the linear macromolecules of interest elute before the long chain branched macromolecules of interest (105) (106). The second step is to introduce a sample into the liquid eluant. The third step is to flow the liquid eluant under pressure through the channels (102) of the separating medium (100).
Type:
Grant
Filed:
May 14, 2003
Date of Patent:
August 26, 2008
Assignee:
Dow Global Technologies Inc.
Inventors:
Patrick B. Smith, David M. Meunier, Scott A. Baker, Robert K. Prud'homme
Abstract: Substantially linear olefin polymers having a melt flow ratio I.sub.10 /I.sub.2,.gtoreq.5.63, a molecular weight distribution, M.sub.w /M.sub.n, defined by the equation: M.sub.w /M.sub.n .ltoreq.(I.sub.10 /I.sub.2)-4.63, and a critical shear stress at onset of gross melt fracture of greater than about 4.times.10.sup.6 dyne/cm.sup.2 and their method of manufacture are disclosed. The substantially linear olefin polymers preferably have at least about 0.01 long chain branches/1000 carbons and a molecular weight distribution from about 1.5 to about 2.5. The new polymers have improved processability over conventional olefin polymers and are useful in producing fabricated articles such as fibers, films, and molded parts.
Type:
Grant
Filed:
October 16, 1996
Date of Patent:
September 9, 1997
Assignee:
The Dow Chemical Company
Inventors:
Shih-Yaw Lai, John R. Wilson, George W. Knight, James C. Stevens