Patents by Inventor Siegfried H. Schroeter
Siegfried H. Schroeter 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: 5034489Abstract: Silicone copolymers, such as silicone polyimides, silicone polyamides silicone polyesters and silicone polycarbonates are provided having condensed tetraorganodisiloxy groups. These silicone copolymers and anhydride or acylaromatic organic terminated intermediates are crosslinkable by heat or electron beam radiation.Type: GrantFiled: November 9, 1989Date of Patent: July 23, 1991Assignee: General Electric CompanyInventors: Jeffrey H. Wengrovius, Virginia M. Van Valkenburgh, Jonathan D. Rich, Siegfried H. Schroeter, deceased
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Patent number: 4436924Abstract: There are provided ultraviolet light absorbing agents of the following general formula ##STR1## wherein: ##STR2## Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;Q is --CH.sub.2 (CH.sub.2).sub.n Si(R.sub.2).sub.x (OR.sub.1).sub.y ; andW is --C.sub.m H.sub.2m+1 ;where x=0, 1 or 2, y=1, 2 or 3, x+y=3, R.sub.1 =alkyl or alkanoyl having 1 to 6 carbon atoms, R.sub.2 =alkyl having 1 to 6 carbon atoms, n=0, 1 or 2, and m=1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.This invention relates to new, improved ultraviolet light absorbing agents, as well as to articles primed and thereafter coated with compositions containing such agents. The novel compounds of this invention are silanolreactive alkoxysilyl- or alkanoyloxysilylalkyl ether adducts of aromatic ultraviolet absorbing agents.Type: GrantFiled: September 23, 1982Date of Patent: March 13, 1984Assignee: General Electric CompanyInventors: Bruce A. Ashby, Siegfried H. Schroeter
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Patent number: 4419405Abstract: There are provided ultraviolet light absorbing agents of the following general formula ##STR1##wherein: ##STR2## Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;Q is --CH.sub.2 (CH.sub.2).sub.n Si(R.sub.2).sub.x (OR.sub.1).sub.y ; andW is --C.sub.m H.sub.2m+1 ;where x=0, 1 or 2, y=1, 2 or 3, x+y=3, R.sub.1 =alkyl or alkanoyl having 1 to 6 carbon atoms, R.sub.2 =alkyl having 1 to 6 carbon atoms, n=0, 1 or 2, and m=1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.Type: GrantFiled: September 23, 1982Date of Patent: December 6, 1983Assignee: General Electric CompanyInventors: Bruce A. Ashby, Siegfried H. Schroeter
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Patent number: 4384026Abstract: A polycarbonate article having an adherent mar, abrasion and chemical resistant ultraviolet light cured coating on the surface thereof comprised of the photoreaction products of certain polyfunctional acrylate monomers and certain acrylate modified polymers.Type: GrantFiled: April 15, 1982Date of Patent: May 17, 1983Assignee: General Electric CompanyInventors: James E. Moore, Ona V. Orkin, Siegfried H. Schroeter
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Patent number: 4374674Abstract: There are provided ultraviolet light absorbing agents of the following general formula ##STR1## wherein: X is ##STR2## Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;Q is --CH.sub.2 (CH.sub.2).sub.n Si(R.sub.2).sub.x (OR.sub.1).sub.y ; andW is --C.sub.m H.sub.2m+1 ;where x=0, 1 or 2, y=1, 2 or 3, x+y=3, R.sub.1 =alkyl or alkanoyl having 1 to 6 carbon atoms, R.sub.2 =alkyl having 1 to 6 carbon atoms, n=0, 1 or 2, and m=1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.Type: GrantFiled: January 15, 1981Date of Patent: February 22, 1983Assignee: General Electric Co.Inventors: Bruce A. Ashby, Siegfried H. Schroeter
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Patent number: 4298632Abstract: A non-opaque coated polycarbonate shaped article, and a process for producing the same, having improved abrasion and chemical solvent resistance comprising a polycarbonate substrate having thereon (i) a primer layer comprised of a thermoplastic acrylic polymer containing functional groups; and (ii) a top coat containing a thermoset organopolysiloxane on said primer layer.The process for producing said coated polycarbonate article comprises the steps of: (i) priming the surface of a polycarbonate substrate by forming a primer layer comprised of a thermoplastic acrylic polymer containing functional groups; (ii) applying a top coat composition containing a further curable organopolysiloxane onto the primed substrate; and (iii) curing the further curable organopolysiloxane to form a hard, abrasion and chemical solvent resistant top coat which is tenaciously and durably adhered to the polycarbonate substrate.Type: GrantFiled: August 17, 1979Date of Patent: November 3, 1981Assignee: General Electric CompanyInventors: Siegfried H. Schroeter, Daniel R. Olson
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Patent number: 4278804Abstract: There are provided ultraviolet light absorbing agents of the following general formula ##STR1## wherein: X is ##STR2## Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;Q is --CH.sub.2 (CH.sub.2).sub.n Si(R.sub.2).sub.x (OR.sub.1).sub.y ; andW is --C.sub.m H.sub.2m+1 ;where x=0, 1 or 2, y=1, 2 or 3, x+y=3, R.sub.1 =alkyl or alkanoyl having 1 to 6 carbon atoms, R.sub.2 =alkyl having 1 to 6 carbon atoms, n=0, 1 or 2, and m=1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.Type: GrantFiled: May 30, 1980Date of Patent: July 14, 1981Assignee: General Electric CompanyInventors: Bruce A. Ashby, Siegfried H. Schroeter
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Patent number: 4243720Abstract: A non-opaque coated polycarbonate shaped article, and a process for producing the same, having improved abrasion and chemical solvent resistance comprising a polycarbonate substrate having thereon (i) a primer layer comprised of a thermoplastic acrylic polymer containing functional groups; and (ii) a top coat containing a thermoset organopolysiloxane on said primer layer. The process for producing said coated polycarbonate article comprises the steps of: (i) priming the surface of a polycarbonate substrate by forming a primer layer comprised of a thermoplastic acrylic polymer containing functional groups; (ii) applying a top coat composition containing a further curable organopolysiloxane onto the primed substrate; and (iii) curing the further curable organopolysiloxane to form a hard, abrasion and chemical solvent resistant top coat which is tenaciously and durably adhered to the polycarbonate substrate.Type: GrantFiled: November 1, 1978Date of Patent: January 6, 1981Assignee: General Electric CompanyInventors: Siegfried H. Schroeter, Daniel R. Olson
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Patent number: 4239798Abstract: A process, and the article produced thereby, for providing a uniformly and tenaciously adhered abrasion resistant and chemical resistant non-opaque coating on polycarbonate articles. The process comprises priming the surface of the polycarbonate article with an adhesion promoting thermoplastic acrylic polymer by forming a thin film of said thermoplastic acrylic polymer on the surface of the polycarbonate article, applying a silica filled organopolysiloxane coating composition onto the primed polycarbonate article, and thereafter curing the silica filled organopolysiloxane to form a hard, abrasion and chemical solvent resistant top coat which is tenaciously adhered to the polycarbonate article. The non-opaque coated polycarbonate article produced by this process comprises a polycarbonate substrate having (i) a primer layer comprised of a thermoplastic acrylic polymer, and (ii) a thermoset silica filled organopolysiloxane top coat.Type: GrantFiled: November 1, 1978Date of Patent: December 16, 1980Assignee: General Electric CompanyInventors: Siegfried H. Schroeter, Daniel R. Olson
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Patent number: 4224378Abstract: A coated polycarbonate article, and a process for producing said article, having improved abrasion and chemical solvent resistance comprising a polycarbonate substrate having deposited thereon (i) a primer layer comprised of a thermoplastic acrylic polymer; and (ii) a top coat containing a thermoset organopolysiloxane disposed on said primer layer. The process for producing said coated polycarbonate article comprises (i) priming the surface of a polycarbonate substrate with a thermoplastic acrylic polymer by forming a thin film of said thermoplastic acrylic polymer on the surface of said substrate, (ii) applying a top coating composition containing a further curable organopolysiloxane onto the primed substrate, and (iii) curing the further curable organopolysiloxane to form a hard, abrasion and chemical solvent resistant top coat which is tenaciously adhered to the polycarbonate substrate.Type: GrantFiled: November 1, 1978Date of Patent: September 23, 1980Assignee: General Electric CompanyInventors: Siegfried H. Schroeter, Daniel R. Olson
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Patent number: 4210699Abstract: A shaped non-opaque coated polycarbonate article having improved abrasion and chemical solvent resistance comprising a polycarbonate substrate having disposed on the surface thereon a non-opaque primer layer comprised of a thermoplastic acrylic polymer containing functional groups and disposed on said primer layer a non-opaque top coat comprised of a colloidal silica filled thermoset organopolysiloxane.Type: GrantFiled: November 1, 1978Date of Patent: July 1, 1980Assignee: General Electric CompanyInventors: Siegfried H. Schroeter, Daniel R. Olson
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Patent number: 4198465Abstract: A polycarbonate article having a durably adherent mar, abrasion and chemical resistant UV cured coating on the surface thereof comprised of the photoreaction products of (i) certain polyfunctional acrylate monomers and (ii) resorcinol monobenzoate.Type: GrantFiled: November 1, 1978Date of Patent: April 15, 1980Assignee: General Electric CompanyInventors: James E. Moore, Ona V. Orkin, Siegfried H. Schroeter
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Patent number: 4179548Abstract: Urethanes of hydroxybenzotriazoles and hydroxybenzophenones which can be chemically modified upon heating have been found useful in imparting weather resistance to plastic substrates when applied as part of a UV curable resin which can be subsequently heated after cure. UV curable resins containing such urethanes and the use of such resins to treat thermoplastic substrates are also described.Type: GrantFiled: September 14, 1977Date of Patent: December 18, 1979Assignee: General Electric CompanyInventors: Siegfried H. Schroeter, Daniel R. Olson
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Patent number: 4107391Abstract: A method is provided for making a thermoformable composite involving the treatment of at least one of the major surfaces of a thermoplastic substrate, such as a sheet, with a solventless ultra-violet (UV) curable organic resin, followed by the UV-curing of the resin. The cured resin provides an adherent decorative and/or protective coating having desirable biaxial elongation characteristics.Type: GrantFiled: March 17, 1977Date of Patent: August 15, 1978Assignee: General Electric CompanyInventors: James E. Moore, Siegfried H. Schroeter
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Patent number: 4088801Abstract: A method is provided for making circuit boards having improved stability and articles made therefrom. In addition, UV-curable ink compositions are also provided convertible to conductive strips when printed onto nonconducting substrates and cured thereon. The conductive strips have improved resistance to salt contamination.Type: GrantFiled: April 29, 1976Date of Patent: May 9, 1978Assignee: General Electric CompanyInventors: Donald A. Bolon, Gary M. Lucas, Siegfried H. Schroeter
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Patent number: 4076489Abstract: A method for coating photoflash lamps with UV curable solventless organic resins having desirable transmission characteristics in the cured state to render the lamps shatter resistant upon flashing wherein the photoflash lamp is dipped into resin for a period of 3-60 seconds followed by UV irradiation of the treated lamp to cure the resin.Type: GrantFiled: May 2, 1977Date of Patent: February 28, 1978Assignee: General Electric CompanyInventors: Siegfried H. Schroeter, Donald A. Bolon, Gary M. Lucas
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Patent number: 4061652Abstract: Urethanes of hydroxybenzotriazoles and hydroxybenzophenones which can be chemically modified upon heating have been found useful in imparting weather resistance to plastic substrates when applied as part of a UV curable resin which can be subsequently heated after cure. UV curable resins containing such urethanes and the use of such resins to treat thermoplastic substrates are also described.Type: GrantFiled: October 28, 1975Date of Patent: December 6, 1977Assignee: General Electric CompanyInventors: Siegfried H. Schroeter, Daniel R. Olson
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Patent number: 4032673Abstract: A method is provided for improving the insulating characteristics of oriented steel sheet having an inorganic surface coating to produce an organic resin-in-organic coating-oriented steel sheet composite. Certain irradiation curable solventless organic resins can be applied to the surface of the oriented steel sheet in a pollution free manner. The resulting composite can be used as power transformer core laminate.Type: GrantFiled: September 19, 1975Date of Patent: June 28, 1977Assignee: General Electric CompanyInventors: Siegfried H. Schroeter, Jon VanWinkle, Carroll B. French
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Patent number: 4026705Abstract: Epoxy compositions are provided which can be cured with visible radiant energy based on the use of certain organic dyes in combination with diarylhalonium salts. Cationic polymerization of various olefinic and cyclic organic compounds and organosilicon cyclics also can be effected in a similar manner.Type: GrantFiled: May 2, 1975Date of Patent: May 31, 1977Assignee: General Electric CompanyInventors: James V. Crivello, Siegfried H. Schroeter