Patents by Inventor Erwin Felger
Erwin Felger 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: 9410043Abstract: A reactive mixture for coating mouldings by means of reaction injection moulding, containing at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture contains at least one photoinitiator and at least one thermal initiator. The present invention furthermore describes a coated moulding including a moulding which is obtainable by injection moulding processes and includes at least one polymer selected from polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer and polymethyl methacrylate copolymers, and a coating which is obtainable by polymerization of (meth)acrylates having at least two double bonds. The coating has an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.Type: GrantFiled: July 11, 2012Date of Patent: August 9, 2016Assignee: Evonik Roehm GmbHInventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Höβ, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Patent number: 9062211Abstract: A reactive mixture for coating moldings by reaction injection molding includes at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture also includes at least one photoinitiator and at least one thermal initiator. Furthermore, a coated molding includes a molding obtainable by injection molding processes. The molding includes polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer, polymethyl methacrylate copolymer, or a combination thereof. A coating is obtainable by polymerization of (meth)acrylates having at least two double bonds, the coating having an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.Type: GrantFiled: July 11, 2012Date of Patent: June 23, 2015Assignee: EVONIK ROEHM GmbHInventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Hoess, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Publication number: 20130001825Abstract: A reactive mixture for coating mouldings by means of reaction injection moulding, containing at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture contains at least one photoinitiator and at least one thermal initiator. The present invention furthermore describes a coated moulding including a moulding which is obtainable by injection moulding processes and includes at least one polymer selected from polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer and polymethyl methacrylate copolymers, and a coating which is obtainable by polymerization of (meth)acrylates having at least two double bonds. The coating has an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.Type: ApplicationFiled: July 11, 2012Publication date: January 3, 2013Applicant: Evonik Roehm GmbHInventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Höss, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Publication number: 20120296004Abstract: The invention relates to an injection moulding machine containing a reactive mixture including at least 40% by weight of (meth)acrylates having at least two double bonds, at least one photoinitiator, and at least one thermal initiator.Type: ApplicationFiled: July 11, 2012Publication date: November 22, 2012Applicant: Evonik Roehm GmbHInventors: Klaus SCHULTES, Thorsten Goldacker, Klaus Koralewski, Werner Höß, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Publication number: 20120288706Abstract: A reactive mixture for coating moldings by reaction injection molding includes at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture also includes at least one photoinitiator and at least one thermal initiator. Furthermore, a coated molding includes a molding obtainable by injection molding processes. The molding includes polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer, polymethyl methacrylate copolymer, or a combination thereof. A coating is obtainable by polymerization of (meth)acrylates having at least two double bonds, the coating having an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.Type: ApplicationFiled: July 11, 2012Publication date: November 15, 2012Applicant: Evonik Roehm GmbHInventors: Klaus SCHULTES, Thorsten Goldacker, Klaus Koralewski, Werner Höß, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Publication number: 20100167045Abstract: The present invention relates to a reactive mixture for coating mouldings by means of reaction injection moulding, comprising at least 40% by weight of (meth)acrylates having at least two double bonds, the reactive mixture comprising at least one photoinitiator and at least one thermal initiator.Type: ApplicationFiled: April 17, 2008Publication date: July 1, 2010Applicant: Evonik Roehm GmbHInventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Hoess, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Patent number: 5473019Abstract: The invention relates to a method of manufacturing monodisperse poly(meth)acrylates by the method of precipitation polymerization, comprising polymerizingi) a monomer mixture comprising at least 60 wt. % of monomer of formula I ##STR1## where R represents hydrogen or methyl; and R.sub.1 represents a C.sub.1-8 alkyl group, a C.sub.6-24 aryl group, a C.sub.1-8 alkyl substituted aryl group or an aralkyl group;ii) 0.1-10 wt. % based on the weight of the monomer mixture of a block copolymer having polystyrene components; andiii) 0.02-2 wt. % based on the weight of the monomer mixture of a percarbonic acid ester;in a halogen free solvent comprising 70 to 100 wt. % of cyclohexane.Type: GrantFiled: March 29, 1995Date of Patent: December 5, 1995Assignee: Roehm GmbH Chemische FabrikInventors: Werner Siol, Wilhelm Wopker, Erwin Felger, Markus Parusel
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Patent number: 5458975Abstract: The invention relates to a method of manufacturing monodisperse poly(meth)acrylates by the method of precipitation polymerization, comprising polymerizingi) a monomer mixture comprising at least 60 wt. % of monomer of formula I ##STR1## where R represents hydrogen or methyl; andR.sub.1 represents a C.sub.1-8 alkyl group, a C.sub.6-24 aryl group, a C.sub.1-8 alkyl substituted aryl group or an aralkyl group;ii) 0.1-10 wt. % based on the weight of the monomer mixture of a block copolymer having polystyrene components; andiii) 0.02-2 wt. % based on the weight of the monomer mixture of a percarbonic acid ester;in a halogen free solvent comprising 70 to 100 wt. % of cyclohexane.Type: GrantFiled: December 1, 1994Date of Patent: October 17, 1995Assignee: Roehm GmbH Chemische FabrikInventors: Werner Siol, Wilhelm Wopker, Erwin Felger, Markus Parusel
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Patent number: 5451650Abstract: The invention relates to a method of manufacturing monodisperse poly(meth)acrylates by the method of precipitation polymerization, comprising polymerizingi) a monomer mixture comprising at least 60 wt. % of monomer of formula I ##STR1## where R represents hydrogen or methyl; andR.sub.1 represents a C.sub.1-8 alkyl group, a C.sub.6-24 aryl group, a C.sub.1-8 alkyl substituted aryl group or an aralkyl group;ii) 0.1-10 wt. % based on the weight of the monomer mixture of a block copolymer having polystyrene components; andiii) 0.02-2 wt. % based on the weight of the monomer mixture of a percarbonic acid ester;in a halogen free solvent comprising 70 to 100 wt. % of cyclohexane.Type: GrantFiled: August 10, 1994Date of Patent: September 19, 1995Assignee: Roehm GmbH Chemische FabrikInventors: Werner Siol, Wilhelm Wopker, Erwin Felger, Markus Parusel
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Patent number: 5446095Abstract: Compatible polymer blends PM, exhibiting a single glass transition temperature Tg comprise(A) 0.1-99.9 wt. % of a polymer P1 comprising at least 95 wt. % styrene; and(B) 99.9-0.1 wt % of a polymer P2 comprising(a) more than 90 wt. % and up to 100 wt. % of ethyl methacrylate, and(b) 0 wt. % up to less than 10 wt. % of at least one monomer copolymerizable with ethyl methacrylate, provided that (a) plus (b) add up to 100 wt. %.The compatible polymer blends may be formulated with another polymer P3, chemically differentiable from P1 and P2, with P3 being incompatible with P1, P2 and PM, to form compositions of better impact resistance than PM. The compatible polymer blends find use in the production of weather-resistant items; data-storage discs, especially for optically readable information; and optical gradient fibers.Type: GrantFiled: December 17, 1993Date of Patent: August 29, 1995Assignee: Rohm GmbH Chemische FabrikInventors: Werner Siol, Erwin Felger, Ulrich Terbrack
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Patent number: 5374487Abstract: The invention relates to compatible PM polymer blends with polyesters as mix components, which compriseA) 0.1 to 99.9 wt % of a P1 polyester synthesized from units of formula I ##STR1## where R stands for a group --(CH.sub.2).sub.m -- or for a group ##STR2## and where m stands for a number from 2 to 6, andB) 99.9 to 0.1 wt % of a P2 polyester synthesized to 20-100 wt % from halogen-free monomers of formula II ##STR3## where R.sub.1 stands for hydrogen or methylR.sub.2 stands for a spacing group having 1-6 monomers,R.sub.3 stands for an alkyl group, alkoxy group or aminoalkyl- or dialkyl group having 1 to 6 carbon atoms andq stands for zero or one andz stands for zero, one or two.Type: GrantFiled: July 6, 1993Date of Patent: December 20, 1994Assignee: Rohm GmbHInventors: Werner Siol, Jens-Dieter Fischer, Thomas Sufke, Erwin Felger, Klaus Frank
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Patent number: 5322900Abstract: Compatible polymer blends PM, exhibiting a single glass transition temperature Tg comprise(A) 0.1-99.9 wt. % of a polymer P1 comprising at least 95 wt. % styrene; and(B) 99.9-0.1 wt % of a polymer P2 comprising(a) more than 90 wt. % and up to 100 wt. % of ethyl methacrylate, and(b) 0 wt. % up to less than 10 wt. % of at least one monomer copolymerizable with ethyl methacrylate, provided that (a) plus (b) add up to 100 wt. %.The compatible polymer blends may be formulated with another polymer P3, chemically differentiable from P1 and P2, with P3 being incompatible with P1, P2 and PM, to form compositions of better impact resistance than PM. The compatible polymer blends find use in the production of weather-resistant items; data-storage discs, especially for optically readable information; and optical gradient fibers.Type: GrantFiled: February 24, 1992Date of Patent: June 21, 1994Assignee: Rohm GmbH Chemische FabrikInventors: Werner Siol, Erwin Felger, Ulrich Terbrack
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Patent number: 5250623Abstract: The invention relates to compatible PM polymer blends with polyesters as mix components, which compriseA) 0.1 to 99.9 wt % of a Pi polyester synthesized from units of formula I ##STR1## where R stands for a group --(CH.sub.2)m-- or for a group ##STR2## and where m stands for a number from 2 to 6, and B) 99.9 to 0.1 wt % of a P2 polyester synthesized to 20-100 wt % from halogen-free monomers of formula II ##STR3## where R.sub.1 stands for hydrogen or methylR.sub.2 stands for a spacing group having 1-6 members,R.sub.3 stands for an alkyl group, alkoxyl group or aminoalkyl- or dialkyl group having 1 to 6 carbon atoms andq stands for zero or one andz stands for zero, one or two.Type: GrantFiled: July 10, 1991Date of Patent: October 5, 1993Assignee: ROHM GmbHInventors: Werner Siol, Jens-Dieter Fischer, Thomas Sufke, Erwin Felger, Klaus Frank
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Patent number: 4814207Abstract: A method for applying a coating of a scratch resistant and weather resistant film to a shaped article by applying to said article a thin film of a mixture of a free radically polymerizable monomer having at least two polymerizable olefinic bonds, a peroxide initiator having a half life of less than two minutes at 100.degree. C., and an ultraviolet stabilizer, and then curing said film by heating it to a temperature above 70.degree. C.; coated shaped articles made by this method.Type: GrantFiled: May 4, 1987Date of Patent: March 21, 1989Assignee: Rohm GmbHInventors: Werner Siol, Erwin Felger, Werner Arnold