Patents by Inventor William W. Wilkison, III

William W. Wilkison, III 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).

  • Process for preparing 4-hydroxystyrene
    Patent number: 5493062
    Abstract: The present invention provides a unique and novel way of producing vinyl phenols such as p-vinyl phenol (4-hydroxystyrene--HSM). In this new process, p-.alpha.-aminoethylphenol (AEP) is heated under suitable deamination conditions of temperature and pressure and for a sufficient period of time to form the 4-hydroxystyrene (HSM).
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: February 20, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: James R. Sounik, William W. Wilkison, III, Keith M. Russ
  • Process for preparing acetoxystyrene
    Patent number: 5463108
    Abstract: The present invention provides a unique and novel way of producing 4-acetoxystyrene. In this new process, 4-hydroxystyrene is acetylated, in the presence of an acetylation agent, under suitable conditions of temperature and pressure and for a sufficient period of time to form acetoxystyrene.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: October 31, 1995
    Assignee: Hoechst Celanese Corporation
    Inventors: James R. Sounik, William W. Wilkison, III, Keith M. Russ, Lynn Massarelli
  • Process for preparing poly(4-hydroxystyrene)
    Patent number: 5463141
    Abstract: The present invention provides a unique and novel way of producing vinyl phenols such as poly(4-hydroxystyrene) (PHS). In this new process, p-.alpha.-aminoethylphenol (AEP) is heated under suitable conditions of temperature and pressure and for a sufficient period of time to form the poly(4-hydroxystyrene) (PHS).
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: October 31, 1995
    Assignee: Hoechst Clanese Corporation
    Inventors: James R. Sounik, William W. Wilkison, III, Keith M. Russ
  • Substituted phenyl compounds and processes for preparing the same
    Patent number: 5422417
    Abstract: Substituted phenyl compounds endowed with chain extension activity for formulations such as polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 1-1000 and m is 1-100; and R.sub.1 and R.sub.2 are each independently selected from the group --C.sub.2 H.sub.4 -- and --C.sub.3 H.sub.6 --; and R.sub.3 is from the group consisting of: ##STR2## and the diasteromeric salts thereof.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: June 6, 1995
    Assignee: Hoechst Celanese Corporation
    Inventors: Michael T. Sheehan, James R. Sounik, William W. Wilkison, III
  • Amines and processes for preparing the same
    Patent number: 5399766
    Abstract: Amines endowed with chain extension activity for formulations such as polyureas and polyurethanes are disclosed, which have the general formula: ##STR1## wherein n is 1-1000 and m is 1-100; R.sub.1 and R.sub.2 are from the group --C.sub.2 H.sub.4 -- and C.sub.3 H.sub.6 --; and R.sub.3 and R.sub.4 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH; and the diasteromeric salts thereof.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: March 21, 1995
    Assignee: Hoechst Celanese Corporation
    Inventors: Michael T. Sheehan, James R. Sounik, Bret F. Hann, William W. Wilkison, III
  • Amines derived from THPE and processes for preparing the same
    Patent number: 5354907
    Abstract: Amines endowed with chain extension activity for formulations such as polyureas are disclosed, which have the general formula: ##STR1## wherein n is 0-1000; R.sub.1 .dbd.R.sub.2, and R.sub.1 and R.sub.2 are from the group --CH.sub.2 --CH.sub.2 --; --CH.sub.2 --C(CH.sub.3)H--; and --C(CH.sub.3)H--CH.sub.2 --; and R.sub.3 and R.sub.4 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: October 11, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Michael T. Sheehan, James R. Sounik, William W. Wilkison, III
  • Processes for preparing amines
    Patent number: 5347051
    Abstract: Amines endowed with chain extension activity for formulations such as polyureas and polyurethanes are disclosed, which have the general formula: ##STR1## wherein n is 0-1000; R.sub.1 .dbd.R.sub.2, and R.sub.1 and R.sub.2 are from the group --CH.sub.2 --CH.sub.2 --; --CH.sub.2 --C(CH.sub.3)H--; and --C(CH.sub.3)H--CH.sub.2 --; and R.sub.3 and R.sub.4 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH; and the diasteromeric salts thereof.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: September 13, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Michael T. Sheehan, James R. Sounik, Bret F. Hann, William W. Wilkison, III
  • Processes for preparing diamino compounds
    Patent number: 5347049
    Abstract: Di-amines endowed with chain extension activity for formulations such as polyureas and polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 0-1000; R.sub.1, R.sub.2, R.sub.5, and R.sub.6 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH; R.sub.3 =R.sub.4, and R.sub.3 and R.sub.4 are from the group --CH.sub.2 CH.sub.2 --; --CH.sub.2 --C(CH.sub.3)H--; and --C(CH.sub.3) H--CH.sub.2 --; and the diasteromeric salts thereof.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: September 13, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Michael T. Sheehan, James R. Sounik, Bret F. Hann, William W. Wilkison, III
  • Substituted phenyl compounds and processes for preparing the same
    Patent number: 5346983
    Abstract: Substituted phenyl compounds endowed with chain extension activity for formulations such as polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 1-1000; R.sub.1 .dbd.R.sub.2, and R.sub.1 and R.sub.2 are from the group --CH.sub.2 --CH.sub.2, --CH.sub.2 --C(CH.sub.3)H--; and --C(CH.sub.3)H--CH.sub.2 --; and R.sub.3 is from the group consisting of: ##STR2## and the diasteromeric salts thereof.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: September 13, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Michael T. Sheehan, James R. Sounik, Bret F. Hann, William W. Wilkison, III
  • Di-amino compounds
    Patent number: 5312990
    Abstract: Di-amines endowed with chain extension activity for formulations such as polyureas and polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 0-1000; R.sub.1, R.sub.2, R.sub.5, and R.sub.6 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH; R.sub.3 .dbd.R.sub.4, and R.sub.3 and R.sub.4 are from the group --CH.sub.2 --CH.sub.2 --; --CH.sub.2 --C(CH.sub.3)H--; and --C(CH.sub.3)H--CH.sub.2 --; and the diasteromeric salts thereof.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: May 17, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Michael T. Sheehan, James R. Sounik, Bret F. Hann, William W. Wilkison, III
  • Amines derived from THPE
    Patent number: 5312988
    Abstract: Amines endowed with chain extension activity for formulations such as polyureas are disclosed, which have the general formula: ##STR1## wherein n is 0-1000; R.sub.1 =R.sub.2, and R.sub.1 and R.sub.2 are from the group --CH.sub.2 --CH.sub.2 --; --CH.sub.2 --C(CH.sub.3)H--; and --C(CH.sub.3)H--CH.sub.2 --; and R.sub.3 and R.sub.4 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: May 17, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Michael T. Sheehan, James R. Sounik, William W. Wilkison, III
  • Substituted triphenyl compounds & processes for preparing the same
    Patent number: 5300589
    Abstract: Substituted triphenyl compounds endowed with chain extension activity for formulations such as polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 0-1000; R.sub.1 .dbd.R.sub.2, and R.sub.1 and R.sub.2 are from the group --CH.sub.2 --CH.sub.2, --CH.sub.2 --C(CH.sub.3)H--; and --C(CH.sub.3)H--CH.sub.2 --.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: April 5, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Michael T. Sheehan, James R. Sounik, William W. Wilkison, III
  • Substituted benzyl amines
    Patent number: 5300691
    Abstract: Amines endowed with chain extension activity for formulations such as polyureas and polyurethanes are disclosed, which have the general formula: ##STR1## wherein n is 0-1000; R.sub.1 =R.sub.2, and R.sub.1 and R.sub.2 are from the group --CH.sub.2 --CH.sub.2 --; --CH.sub.2 --C(CH.sub.3)H--; and --C(CH.sub.3)H--CH.sub.2 --; and R.sub.3 and R.sub.4 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH; and the diasteromeric salts thereof.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: April 5, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Michael T. Sheehan, James R. Sounik, Bret F. Hann, William W. Wilkison, III