Inventor

William E. Slack

Inventor

Moundsville, WV, US

Overview

1979–2010

Patent span

Chemistry

Primary field (CPC C)

Patents· 81 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Gprimary

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds71%

C07CAcyclic or carbocyclic compounds11%

C07DHeterocyclic compounds7%

C09DCoating compositions, e.g. paints, varnishes or lacquers5%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients2%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

C08JWorking-up1%

Y10TTechnical subjects covered by former us classification1%

PatentTitleYear

7,666,971'Amide/urea-modified liquid diphenylmethane diisocyanates'2010 7,632,911'Liquid modified diphenylmethane diisocyanates'2009 7,553,963'Liquid partially trimerized and allophanized polyisocyanates based on toluene diisocyanate and diphenylmethane diisocyanate'2009 7,378,543'Stable liquid biuret modified and biuret allophanate modified toluene diisocyanates, prepolymers thereof, and processes for their preparation'2008 6,991,746'Polymeric allophanates of diphenylmethane diisocyanate, perpolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof'2006 6,887,399'Polymeric allophanates of diphenylmethane diisocyanate, prepolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof'2005 6,838,542'Stable liquid biuret modified and biuret allophanate modified diphenylmethane diisocyanates, prepolymers thereof, and processes for their preparation'2005 6,797,799'High 2,4-diphenylmethane diisocyanate content prepolymers'2004 6,765,080'High performance RIM elastomers and a process for their production'2004 6,639,040'Continuous process for the production of MDI allophanates'2003 6,586,487'Low-density, water blown polyurethane foams for energy-absorbing applications'2003 6,583,314'Stable isocyanate formulations'2003 6,515,125'Liquid partially trimerized polyisocyanates based on toluene diisocyanate and diphenylmethane diisocyanate'2003 6,482,913'Liquid MDI adducts wtih improved freeze stability'2002 6,433,218'Stable isocyanate formulations'2002 6,320,012'Isocyanate formulations containing activated chain extenders'2001 6,271,279'High resilient flexible urethane foam and flexible molded foams based on allophanate modified isocyanates'2001 6,242,556'Liquid MDI adducts with improved freeze stability'2001 6,127,308'Trimer catalyst system for aliphatic and aromatic isocyanates'2000 6,063,891'Freeze stable allophanate-modified toluene diisocyanate trimers'2000 6,028,158'Freeze-stable allophanate-modified toluene diisocyanate trimers'2000 5,955,609'Trimer catalyst system for aliphatic and aromatic isocyanates'1999 5,905,151'Trimer catalyst for aliphatic and aromatic isocyanates'1999 5,889,068'Water blown polyurethane soling systems'1999 5,874,485'Flexible foams and flexible molded foams based on allophanate-modified diphenylmethane diisocyanates and processes for the production of these foams'1999 5,874,623'Process for the production of polyether aminoalcohols'1999 5,859,163'Allophanate group-containing polyisocyanates improved compatibility with aldimines'1999 5,837,794'Toluene diisocyanate residue-based compositions having reduced acid values'1998 5,821,275'Flexible foams and flexible molded foams based on liquid isocyanate-terminated allophanate-modified MDI prepolymer blends and processes for the production of these foams'1998 5,804,648'Toluene diisocyanate residue-based compositions and the use of such compositions as fillers for hydroxyl compounds'1998 5,789,519'High viscosity, high equivalent weight polyisocyanate mixtures containing allophanate and isocyanurate groups and their use in coating compositions'1998 5,789,497'Hexamethylene diisocyanate residue-based compositions as fillers for polyether polyols'1998 5,783,652'Reactivity improvement of urethane prepolymers of allophanate-modified diphenylmethane diisocyanates'1998 5,763,667'Ether-linked amine-terminated polyethers and a process for their production'1998 5,756,636'Isocyanate prepolymers produced from toluene diisocyanate residue dissolved in toluene diisocyanate'1998 5,753,750'Toluene diisocyanate residue-based compositions as fillers for polyisocyanates'1998 5,753,749'Dicyclohexylmethane diisocyanate residue-based compositions and the use of such compositions as fillers'1998 5,747,629'Low surface energy polyisocyanates and their use in one-or two-component coating compositions'1998 5,739,207'Hexamethylene diisocyanate residue-based compositions as fillers for polyisocyanates'1998 5,739,397'Process for the production of secondary amines and the amines produced by the process'1998 5,723,670'Liquid amines'1998 5,693,864'Process for the production of secondary amine terminated polyethers'1997 5,691,439'Low surface energy polyisocyanates and their use in one- or two-component coating compositions'1997 5,686,042'Rim process using liquid methylene diphenyl diisocyanate'1997 5,672,761'Method for reducing the viscosity of high viscosity polyether polyols'1997 5,663,272'Allophanate-modified diphenylmethane diisocyanates and processes for their production and use'1997 5,648,445'Liquid 1,3-phenylene diisocyanate, 1,1\'-biphenyl diisocyanate and 1,1\'-oxy-bis-(isocyanato-benzene)'1997 5,646,227'Low surface energy polyisocyanates and their use in one- or two-component coating compositions'1997 5,614,605'Rigid polyurethanes based on allophanate-modified aliphatic and/or cycloaliphatic polyisocyanurates'1997 5,576,411'Low surface energy polyisocyanates and their use in one-or two component coating compositions'1996 5,574,122'Low surface energy polyisocyanates and their use in one- or two-component coating compositions'1996 5,567,793'Urethane-free, diphenylmethane diisocyanate prepolymers and process for their production'1996 5,541,281'Low surface energy polyisocyanates and their use in one- or two-component coating compositions'1996 5,525,683'Ether-linked amine-terminated polyesters and a process for their production'1996 5,510,445'Process for castable polyurea elastomers'1996 5,510,535'Ether-linked amine-terminated polyethers and a process for their production'1996 5,502,150'Linear HDI urethane prepolymers for rim application'1996 5,502,147'Aliphatic rim elastomers'1996 5,444,146'Polyisocyanates containing allophanate and isocyanurate groups, a process for their production and their use in two-component coating compositions'1995 5,440,003'Liquid methylene diphenyl diisocyanate'1995 5,428,124'Urea and biuret liquid prepolymers of MDI'1995 5,350,778'Polyisocyanate based upon 4,4\'- and 2,4\'-diphenylmethane diisocyanates and use thereof in a rim process'1994 5,349,082'Toluene diisocyanate residue'1994 5,326,829'Process for the production of activated polyethers'1994 5,319,053'Liquid diphenylmethane diisocyanate'1994 5,319,054'Liquid methylene diphenyl diisocyanate'1994 5,235,018'Polyisocyanates containing allophanate and isocyanurate groups, a process for their production and their use in two-component coating compositions'1993 5,219,973'Polyurea rim systems'1993 5,212,275'Urea and biuret prepolymers of MDI'1993 5,208,334'Process for the production of polyisocyanates containing allophanate and isocyanurate groups'1993 5,198,522'Reaction injection molding based on diethyl methylene diphenyl diisocyanate'1993 5,124,427'Polyisocyanates containing allophanate and isocyanurate groups, a process for their production and their use in two-component coating compositions'1992 5,043,473'Liquid isocyanate prepolymers'1991 4,914,174'Liquid isocyanate prepolymers'1990 4,910,333'Liquid diphenylmethane diisocyanate compositions'1990 4,898,971'Liquid isocyanate prepolymers'1990 4,885,353'Liquid isocyanate prepolymers'1989 4,883,909'Liquid diphenylmetane diisocyanate compositions'1989 4,837,359'Process for the production of polyisocyanates with biuret structures'1989 4,810,820'Process for the production of polyisocyanates containing allophanate groups'1989 4,154,752'Preparation of partially carbodiimidized methylenebis (phenyl isocyanate)'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–2010Based in Moundsville, WV, US· patent location history

1989–2004Patents assigned to BAYER AG (52)· patent assignee history

1989–1991Patents assigned to MOBAY CORP (8)· patent assignee history

1992–1995Patents assigned to MILES INC (13)· patent assignee history

1998Based in Pittsburgh, PA, US· patent location history

2004–2010Patents assigned to BAYER MATERIALSCIENCE LLC (7)· patent assignee history

2005Patents assigned to BAYER MATERIALSCIENCE LLP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	52	1989–2004
MILES INC	13	1992–1995
MOBAY CORP	8	1989–1991
BAYER MATERIALSCIENCE LLC	7	2004–2010
BAYER MATERIALSCIENCE LLP	1	2005

Locations

Location	Patents	Span
Moundsville, WV, US	80	1979–2010
Pittsburgh, Pennsylvania, US	1	1998