Patents by Inventor Thomas W. Smeal

Thomas W. Smeal 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).

  • Bisphenol-A based polymers having low organic emissions
    Patent number: 5780546
    Abstract: A low organic emission composition comprising a di-alkoxylated bisphenol-A dimaleate urethane dimethacrylate hybrid resin, an alkoxylated bisphenol-A diacrylate or dimethacrylate, ethylene glycol dimethacrylate and other vinyl monomers. The composition is useful in such applications as a substitute for prior art resins, such as polyester/vinyl ester based resins, typically used in fiberglass reinforced plastic applications.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: July 14, 1998
    Assignee: Aristech Chemical Corporation
    Inventors: Joseph Pugach, Thomas W. Smeal, Ronald A. Andrekanic
  • Low organic emission resins
    Patent number: 5741873
    Abstract: The present invention relates to a composition comprising at least one alkoxylated bisphenol-A diacrylate or dimethacrylate, ethylene glycol dimethacrylate, and at least one vinyl monomer. The composition is suitable for use in the fiberglass reinforced plastic art. The composition possesses similar or superior physical properties compared to unsaturated polyester based specialty resins, including emitting lower levels of organic volatiles than typical resins used in the art.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: April 21, 1998
    Assignee: Aristech Chemical Corporation
    Inventors: Ronald A. Andrekanic, Joseph Pugach, Thomas W. Smeal
  • Laminating resins having low organic emissions (II)
    Patent number: 5571863
    Abstract: A laminating resin is made from (1) an unsaturated polyester resin comprising maleic acid, phthalic acid, and glycol(s), (2) a diacrylate or dimethacrylate of alkoxylated bisphenol-A, and (3) ethylene glycol dimethacrylate. The resin requires no styrene to achieve excellent laminating resin properties, and is significantly inhibited from emitting volatiles during use.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: November 5, 1996
    Assignee: Aristech Chemical Corporation
    Inventors: Thomas W. Smeal, George L. Brownell
  • Laminating resins having low organic emission (III)
    Patent number: 5567766
    Abstract: A laminating resin is made from (1) an unsaturated polyester resin, (2) a diacrylate or dimethacrylate of alkoxylated bisphenol-A, and (3) styrene, divinyl benzene or a combination thereof. The resin achieves excellent laminating resin properties, and is significantly inhibited from emitting volatiles during use.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: October 22, 1996
    Assignee: Aristech Chemical Corporation
    Inventors: Thomas W. Smeal, George L. Brownell
  • Laminating resins having low organic emissions (I)
    Patent number: 5567767
    Abstract: A laminating resin is made from (1) an unsaturated polyester resin, (2) a diacrylate or dimethacrylate of alkoxylated bisphenol-A, and (3) vinyl toluene. The resin requires no styrene to achieve excellent laminating resin properties, and is significantly inhibited from emitting volatiles during use.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: October 22, 1996
    Assignee: Aristech Chemical Corporation
    Inventors: Thomas W. Smeal, George L. Brownell
  • Laminating resins having low organic emissions
    Patent number: 5534211
    Abstract: A method of laminating a solid formed body utilizing a laminating resin characterized by low volatile emissions is made from (1) an unsaturated polyester resin comprising maleic acid, phthalic acid, glycol(s), and dicyclopentadiene, (2) a diacrylate or dimethacrylate of alkoxylated bisphenol-A, and (3) a compound selected from the group consisting of ethylene glycol dimethacrylate, vinyl toluene, styrene, and divinyl benzene.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: July 9, 1996
    Assignee: Aristech Chemical Corporation
    Inventors: Thomas W. Smeal, George L. Brownell
  • Esterification process using a titamium zeolite catalyst
    Patent number: 5502240
    Abstract: A liquid phase esterification process is described wherein the esterification catalyst is a titanium zeolite.
    Type: Grant
    Filed: June 9, 1995
    Date of Patent: March 26, 1996
    Assignee: Aristech Chemical Corporation
    Inventors: Joseph Pugach, Thomas W. Smeal, Howard S. Karp
  • Laminating resins having low organic emissions
    Patent number: 5501830
    Abstract: A laminating resin is made from (1) an unsaturated polyester resin, (2) a diacrylate or dimethacrylate of alkoxylated bisphenol-A, and (3) vinyl toluene. The resin requires no styrene to achieve excellent laminating resin properties, and is significantly inhibited from emitting volatiles during use.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: March 26, 1996
    Assignee: Aristech Chemical Corporation
    Inventors: Thomas W. Smeal, George L. Brownell
  • Laminating resins having low organic emissions (II)
    Patent number: 5500171
    Abstract: A laminating resin is made from (1) an unsaturated polyester resin comprising maleic acid, phthalic acid, and glycol(s), (2) a diacrylate or dimethacrylate of alkoxylated bisphenol-A, and (3) ethylene glycol dimethacrylate. The resin requires no styrene to achieve excellent laminating resin properties, and is significantly inhibited from emitting volatiles during use.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: March 19, 1996
    Assignee: Aristech Chemical Corporation
    Inventors: Thomas W. Smeal, George L. Brownell
  • Laminating resins having low organic emissions
    Patent number: 5492668
    Abstract: A laminating resin is made from (1) an unsaturated polyester resin, (2) a diacrylate or dimethacrylate of alkoxylated bisphenol-A, and (3) styrene, divinyl benzene or a combination thereof. The resin achieves excellent laminating resin properties, and is significantly inhibited from emitting volatiles during use.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: February 20, 1996
    Assignee: Aristech Chemical Corporation
    Inventors: Thomas W. Smeal, George L. Brownell
  • Method of making plasticizers
    Patent number: 5434294
    Abstract: A process for the titanate catalyzed preparation of plasticizers from polycarboxylic acids and alcohols which minimizes waste water and is energy efficient. The reaction product is treated with aqueous caustic and is then filtered using an absorbent medium which removes titanium, caustic, acid salts and water. The need for water washing is obviated, and the final plasticizer product has excellent properties.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: July 18, 1995
    Assignee: Aristech Chemical Corporation
    Inventors: Joseph Pugach, Thomas W. Smeal
  • Laminating resins having low organic emissions
    Patent number: 5393830
    Abstract: A laminating resin is made from (1) an unsaturated polyester resin comprising maleic acid, phthalic acid, and glycol(s), and dicyclopentadiene, (2) a diacrylate or dimethacrylate of alkoxylated bisphenol-A, and (3) EG dimethacrylate. The resin requires no styrene or other monomer, although up to 20% vinyl toluene or 40% cyclohexyl methacrylate may be used to adjust viscosity.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: February 28, 1995
    Assignee: Aristech Chemical Corporation
    Inventors: Thomas W. Smeal, George L. Brownell
  • Laminating resins having low organic emissions
    Patent number: 5369201
    Abstract: A laminating resin comprising (A) an acrylated or methacrylated cycloaliphatic epoxide, (B) an acrylated or methacrylated alkoxylated bisphenol-A, in a weight ratio of (A) to (B) of about 3 to 1 to about 1 to 5, and (C) about 5% to about 50%, based on the total composition, cyclohexyl methacrylate. Vinyl toluene and ethylene glycol dimethacrylate are also used to modify certain properties of the resin.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: November 29, 1994
    Assignee: Aristech Chemical Corporation
    Inventors: Thomas W. Smeal, George L. Brownell
  • Laminating resins having low organic emissions
    Patent number: 5292841
    Abstract: A laminating resin comprising (A) an acrylated or methacrylated cycloaliphatic epoxide, (B) an acrylated or methacrylated alkoxylated bisphenol-A, in a weight ratio of (A) to (B) of about 3 to 1 to about 1 to 5, and (C) about 5% to about 50%, based on the total composition, cyclohexyl methacrylate. Vinyl toluene and ethylene glycol dimethacrylate are also used to modify certain properties of the resin.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: March 8, 1994
    Assignee: Aristech Chemical Corporation
    Inventors: Thomas W. Smeal, George L. Brownell