Patents by Inventor William T. Freed
William T. Freed 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).
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Patent number: 5433984Abstract: This invention provides an improved adhesive layer for multi-layer films and bottles, the adhesive layer being a graft copolymer of a polyolefin backbone with a methyl methacrylate graft. The graft copolymer sufficiently improves the compatibility between barrier resins and polyolefins to permit the production of monolithic or single layer bottles comprised of a blend of those three components. The resultant products have improved physical properties while retaining acceptable permeability to gases.Type: GrantFiled: October 13, 1993Date of Patent: July 18, 1995Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, Thomas M. Frantz, William T. Freed
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Patent number: 5369169Abstract: Polymer blends of a) polymers containing predominantly mers of (meth)acrylates and/or glutarimides with b) up to about 40 weight percent of polymers having greater than about 50 tool % vinyl alcohol mers exhibit useful barrier properties to oxygen and other environmental gases, while maintaining or enhancing physical properties and clarity.Type: GrantFiled: October 15, 1993Date of Patent: November 29, 1994Assignee: Rohm and Haas CompanyInventors: Edward E. La Fleur, Robert M. Amici, William T. Freed, William J. Work, William G. Carson
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Patent number: 5300570Abstract: This invention provides an improved adhesive layer for multi-layer films and bottles, the adhesive layer being a graft copolymer of a polyolefin backbone with a methyl methacrylate graft. The graft copolymer sufficiently improves the compatibility between barrier resins and polyolefins to permit the production of monolithic or single layer bottles comprised of a blend of those three components. The resultant products have improved physical properties while retaining acceptable permeability to gases.Type: GrantFiled: July 8, 1992Date of Patent: April 5, 1994Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, Thomas M. Frantz, William T. Freed
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Patent number: 5296537Abstract: Polymer blends of a) polymers containing predominantly mers of (meth)acrylates and/or glutarimides with b) up to about 40 weight percent of polymers having greater than 50 mol % vinyl alcohol mers exhibit useful barrier properties to oxygen and other environmental gases, while maintaining or enhancing physical properties and clarity.Type: GrantFiled: February 16, 1993Date of Patent: March 22, 1994Assignee: Rohm and Haas CompanyInventors: Edward E. La Fleur, Robert M. Amici, William T. Freed, William J. Work, William G. Carson
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Patent number: 5264483Abstract: Glutarimide polymers having an acid and anhydride content lower than the acid and/or anhydride content normally present in the glutarimide polymers. Blends of the reduced acid and anhydride glutarimide polymers with thermoplastic materials are disclosed. A process for altering the properties of imide polymers by reducing or substantially removing acid and anhydride levels normally present in the imide polymer is also disclosed.Type: GrantFiled: January 10, 1991Date of Patent: November 23, 1993Assignee: Rohm and Haas CompanyInventors: Michael P. Hallden-Abberton, Newman M. Bortnick, Leslie A. Cohen, William T. Freed, Harry C. Fromuth
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Patent number: 5208083Abstract: Polymer blends of a) polymers containing predominantly mers of (meth)acrylates and/or glutarimides with b) up to about 40 weight percent of polymers having greater than about 50 mol % vinyl alcohol mers exhibit useful barrier properties to oxygen and other environmental gases, while maintaining or enhancing physical properties and clarity.Type: GrantFiled: February 28, 1992Date of Patent: May 4, 1993Assignee: Rohm and Haas CompanyInventor: William T. Freed
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Patent number: 5159058Abstract: Polyglutarimides exhibit improved optical properties, as well as lowered content of non-aqueous volatiles, when the molten polyglutarimide is mixed with water, methanol, ethanol, or mixtures thereof, and the water, methanol, ethanol, or mixtures thereof is removed prior to isolation and processing of the polyglutarimide.Type: GrantFiled: April 16, 1992Date of Patent: October 27, 1992Assignee: Rohm and Haas CompanyInventors: Robert E. Jerman, William T. Freed, Leslie A. Cohen, Lucinda F. Buhse, Glenn W. Miller
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Patent number: 5147930Abstract: Polymer blends of a) polymers containing predominantly mers of(meth)acrylates and/or glutarimides with b) up to about 40 weight percent of polymers having greater than about 50 mol % vinyl alcohol mers exhibit useful barrier properties to oxygen and other environmental gases, while maintaining or enhancing physical properties and clarity.Type: GrantFiled: November 16, 1989Date of Patent: September 15, 1992Assignee: Rohm and Haas CompanyInventors: Edward E. La Fleur, Robert M. Amici, William T. Freed, William J. Work, William G. Carson
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Patent number: 5126409Abstract: Polyglutarimides exhibit improved optical properties, as well as lowered content of non-aqueous volatiles, when the molten polyglutarimide is mixed with water, methanol, ethanol, or mixtures thereof, and the water, methanol, ethanol, or mixtures thereof is removed prior to isolation and processing of the polyglutarimide.Type: GrantFiled: January 8, 1991Date of Patent: June 30, 1992Assignee: Rohm and Haas CompanyInventors: Robert E. Jerman, William T. Freed, Leslie A. Cohen, Lucinda F. Buhse, Glenn W. Miller
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Patent number: 5035933Abstract: This invention provides an improved adhesive layer for multi-layer films and bottles, the adhesive layer being a graft copolymer of a polyolefin backbone with a methyl methacrylate graft. The graft copolymer sufficiently improves the compatibility between barrier resins and polyolefins to permit the production of monolithic or single layer bottles comprised of a blend of those three components. The resultant products have improved physical properties while retaining acceptable permeability to gases.Type: GrantFiled: September 28, 1989Date of Patent: July 30, 1991Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, Thomas M. Frantz, William T. Freed
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Patent number: 5004777Abstract: Glutarimide polymers having an acid and anhydride content lower than the acid and/or anhydride content normally present in the glutarimide polymers. Blends of the reduced acid and anhydride glutarimide polymers with thermoplastic materials are disclosed. A process for altering the properties of imide polymers by reducing or substantially removing acid and anhydride levels normally present in the imide polymer is also disclosed.Type: GrantFiled: May 24, 1990Date of Patent: April 2, 1991Assignee: Rohm and Haas CompanyInventors: Michael P. Hallden-Abberton, Newman M. Bortnick, Leslie A. Cohen, William T. Freed, Harry C. Fromuth
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Patent number: 4971847Abstract: Multilayer structures of gas-permeable film or sheet alternating with, and adherent to, layers of poly(glutarimide) film or sheet, exhibit outstanding resistance to gas permeation.Type: GrantFiled: June 2, 1989Date of Patent: November 20, 1990Assignee: Rohm and Haas CompanyInventor: William T. Freed
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Patent number: 4954574Abstract: Glutarimide polymers having an acid and anhydride content lower than the acid and/or anhydride content normally present in the glutarimide polymers. Blends of the reduced acid and anhydride glutarimide polymers with thermoplastic materials are disclosed. A process for altering the properties of imide polymers by reducing or substantially removing acid and anhydride levels normally present in the imide polymer is also disclosed.Type: GrantFiled: December 19, 1989Date of Patent: September 4, 1990Assignee: Rohm and Haas CompanyInventors: Michael P. Hallden-Abberton, Newman M. Bortnick, Leslie A. Cohen, William T. Freed, Harry C. Fromuth
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Patent number: 4727117Abstract: Glutarimide polymers having an acid and anhydride content lower than the acid and/or anhydride content normally present in the glutarimide polymers. Blends of the reduced acid and anhydride glutarimide polymers with thermoplastic materials are disclosed. A process for altering the properties oif imide polymers by reducing or substantially removing acid and anhydride levels normally present in the imide polymer is also disclosed.Type: GrantFiled: August 27, 1985Date of Patent: February 23, 1988Assignee: Rohm and Haas CompanyInventors: Michael P. Hallden-Abberton, Newman M. Bortnick, Leslie A. Cohen, William T. Freed, Harry C. Fromuth
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Patent number: 4223128Abstract: There is disclosed a process for reducing the acetaldehyde content and the generation rate of acetaldehyde of polyethylene terephthalate chip which has a crystallinity of at least about 30% in order to render the polyethylene terephthalate suitable for making containers which are useful in the carbonated beverage industry. This process comprises stabilizing the polyethylene terephthalate by heating it at an elevated temperature in air and maintaining an air to chip ratio at a predetermined value of at least about 0.8 standard cubic foot of air per minute/pound of resin per hour and at a vapor velocity of at least about 0.5 foot per second. The air used in the stabilization process has a dew point of less than about -30.degree. C.The stabilized polyethylene terephthalate produced by this process has an acetaldehyde level of less than about 2.5 parts per million, a generation rate of acetaldehyde of less than about 3.0 parts per million per minute and an intrinsic viscosity of from about 0.60 to about 0.Type: GrantFiled: May 16, 1978Date of Patent: September 16, 1980Assignee: Celanese CorporationInventors: George W. Halek, William T. Freed, Jerome S. Schaul, Raymond W. Rupp, Stanley L. Pauls