Patents by Inventor Valeri L. Valoppi

Valeri L. Valoppi 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).

  • Pentafluoropropane blowing agent-containing resin blend for use in making integral skin foams
    Patent number: 6218443
    Abstract: It has been found that non-chlorinated pentafluoropropane blowing agents may be used alone or in combination with water in flexible integral skin foams. For example, foams prepared from a resin blend incorporating 1,1,1,3,3-pentafluoropropane (HFA-245fa) alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. Such foams made using the resin blend of the present invention are suitable for use in many applications including, for example, shoe soles.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: April 17, 2001
    Assignee: BASF Corporation
    Inventors: Valeri L. Valoppi, Elizabeth S. Bredeson
  • Method of making a low density, molded integral skin polyurethane foam
    Patent number: 6010649
    Abstract: It has been found that non-chlorinated pentafluoropropane blowing agents may be used alone or in combination with water in a method of making flexible integral skin foams. For example, foams prepared using 1,1,1,3,3-pentafluoropropane (HFA-245fa) alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The method of the the present invention produce foams which are suitable for use in many applications including, for example, shoe soles.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: January 4, 2000
    Assignee: BASF Corporation
    Inventors: Valeri L. Valoppi, Elizabeth S. Bredeson
  • Integral skin foams employing pentafluoropropane blowing agents
    Patent number: 5906999
    Abstract: It has been found that non-chlorinated pentafluoropropane blowing agents may be used alone or in combination with water in flexible integral skin foams. For example, foams prepared using 1,1,1,3,3-pentafluoropropane (HFA-245fa) alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams of the present invention are suitable for use in many applications including, for example, shoe soles.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: May 25, 1999
    Assignee: BASF Corporation
    Inventors: Valeri L. Valoppi, Elizabeth S. Bredeson
  • 1,1,1,2-tetrafluoroethane as a blowing agent in integral skin polyurethane shoe soles
    Patent number: 5700843
    Abstract: It has been found that 1,1,1,2-tetrafluoroethane (HFC-134a) may be used alone or in combination with water as blowing agents in flexible integral skin foams. Foams prepared using HFC-134a alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams of the present invention are suitable for use in shoe sole applications.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: December 23, 1997
    Assignee: BASF Corporation
    Inventor: Valeri L. Valoppi
  • 1,1,1,2-tetrafluoroethane as a blowing agent in integral skin polyurethane shoe soles
    Patent number: 5661190
    Abstract: It has been found that 1,1,1,2-tetrafluoroethane (HFC-134a) may be used alone or in combination with water as blowing agents in flexible integral skin foams. Foams prepared using HFC-134a alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams of the present invention are suitable for use in shoe sole applications.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: August 26, 1997
    Assignee: BASF Corporation
    Inventor: Valeri L. Valoppi
  • 1,1,1,2-tetrafluoroethane as a blowing agent in integral skin polyurethane shoe soles
    Patent number: 5506275
    Abstract: It has been found that 1,1,1,2-tetrafluoroethane (HFC-134a) may be used alone or in combination with water as blowing agents in flexible integral skin foams. Foams prepared using HFC-134a alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams of the present invention are suitable for use in shoe sole applications.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: April 9, 1996
    Assignee: BASF Corporation
    Inventor: Valeri L. Valoppi
  • 1,1,1,2-tetrafluoroethane as a blowing agent in integral skin polyurethane shoe soles
    Patent number: 5464879
    Abstract: It has been found that 1,1,1,2-tetrafluoroethane (HFC-134a) may be used alone or in combination with water as blowing agents in flexible integral skin foams. Foams prepared using HFC-134a alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams of the present invention are suitable for use in shoe sole applications.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: November 7, 1995
    Assignee: BASF Corporation
    Inventor: Valeri L. Valoppi
  • Lithium-based salts in flexible foams
    Patent number: 5324754
    Abstract: The invention pertains to polyol compositions containing a lithium salt of an aliphatic or cycloaliphatic, saturated or unsaturated carboxylic acid having 2 to 7 carbon atoms and to flexible polyurethane foams having an open cell structure produced thereby.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: June 28, 1994
    Assignee: BASF Corporation
    Inventors: Valeri L. Valoppi, Donald L. Christman
  • Low density flexible integral skin polyurethane systems using thermoplastic hydrocarbon microspheres and water as co-blowing agents
    Patent number: 5260343
    Abstract: It was found that a combination of thermoplastic microspheres containing a volatile hydrocarbon and water could be used as effective co-blowing/density reducing agents in low density, integral skin polyurethane foams.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: November 9, 1993
    Assignee: BASF Corporation
    Inventors: Richard P. Harrison, Valeri L. Valoppi
  • Volatile silicone oil-blown integral skin foam
    Patent number: 5210103
    Abstract: The present invention relates to integral skin foams prepared without using halogenated hydrocarbons as blowing agents. The foams of the present invention are prepared using water and volatile silicone fluids as co-blowing agents. Useful silicone agents have boiling points at on below 100.degree. C.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: May 11, 1993
    Assignee: BASF Corporation
    Inventors: Valeri L. Valoppi, Oscar M. Grace, Joe C. Wilson