Patents by Inventor Ria De Cooman
Ria De Cooman 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: 8070908Abstract: The present invention relates to (meth)acrylic adhesives with high impact resistance and no or low odor. The compositions comprise at least a (meth)acrylic ester E which may be obtained by esterification of an alcohol ALC and methacrylic or acrylic acid, said alcohol ALC contains at least 5 carbon atoms; and at least a rubber block co-polymer RS being solid at room temperature and which is a co-polymer of styrene and butadiene and/or isoprene and/or ethylene propylene diene monomer; and at least a polymer PL having pending (meth)acrylic groups and is a butadiene/acrylonitrile co-polymer with terminal (meth)acrylic groups or a polyurethane (meth)acrylate or an ester obtainable by esterification of an alcohol ALC-II and methacrylic or acrylic acid and which has a molecular weight between 200 and 9000 g/mol. Such combinations E-RS-PL have lower viscosity than PL and a combination E-RS.Type: GrantFiled: May 1, 2008Date of Patent: December 6, 2011Assignee: Sika Technology AGInventors: Shingo Tsuno, Ria De Cooman
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Patent number: 7754100Abstract: The invention relates to surface treating agents for aerobic (meth)acrylate systems, which comprise one or more solvents, one or more (meth)acrylate monomers of the formula (A), wherein R?H or CH3 and m=1-3, p=3-m and n=1-5, with m, p, and n being an integer, and one or more substances of formula (B), wherein R1, R2 and R3 are H, alkyl, cycloalkyl, aryl, alkylaryl, alkenyl or halogen and R4 is H, methyl or ethyl. The invention further relates to a surface treating agent for aerobic (meth)acrylate systems, which comprises one or more solvents, one or more (meth)acrylate monomers of the formula (A), one or more substances of the formula (B), and one or more additional (meth)acrylate monomers that are devoid of phosphorous functional groups. The invention also describes articles whose surface consists, at least in the boundary zone, of organic polymers and that were pretreated with the inventive surface treating agents.Type: GrantFiled: December 14, 2002Date of Patent: July 13, 2010Assignee: Sika Technology AGInventors: Ria De Cooman, René Flury, Daniel Flury-Schäfer, legal representative
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Publication number: 20100028701Abstract: A single- or multiple-component, free-radically curable composition having at least one free-radically polymerizable monomer of the formula (I) and at least one free-radical initiator. These compositions are suitable as adhesives or sealants and also as coverings. Both before and after curing they have a very low odour, and after curing they possess excellent mechanical qualities in tandem with effective adhesion, to various materials such as plastics, and are therefore suitable for use in areas that are closed or difficult to aerate.Type: ApplicationFiled: October 30, 2007Publication date: February 4, 2010Applicant: SIKA TECHNOLOGY AGInventors: Ria De Cooman, Steffen Maier, Peter Gimmnich
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Publication number: 20090004493Abstract: The present invention relates to compositions which comprise at least one organic (meth)acrylate, zinc(II) dimethacrylate and at least one metal oxide of the formula MO or M2O3 of a di- or trivalent metal selected from the group consisting of zinc and the main group metals. The compositions are stable in storage and on hardening give flexible materials which even at elevated temperatures still have good adhesion to various substrates and have good mechanical properties.Type: ApplicationFiled: February 20, 2007Publication date: January 1, 2009Applicant: Sika Technology AGInventors: Steffen Maier, Ria De Cooman
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Publication number: 20080202683Abstract: The present invention relates to (meth)acrylic adhesives with high impact resistance and no or low odor. The compositions comprise at least a (meth)acrylic ester E which may be obtained by esterification of an alcohol ALC and methacrylic or acrylic acid, said alcohol ALC contains at least 5 carbon atoms; and at least a rubber block co-polymer RS being solid at room temperature and which is a co-polymer of styrene and butadiene and/or isoprene and/or ethylene propylene diene monomer; and at least a polymer PL having pending (meth)acrylic groups and is a butadiene/acrylonitrile co-polymer with terminal (meth)acrylic groups or a polyurethane (meth)acrylate or an ester obtainable by esterification of an alcohol ALC-II and methacrylic or acrylic acid and which has a molecular weight between 200 and 9000 g/mol. Such combinations E-RS-PL have lower viscosity than PL and a combination E-RS.Type: ApplicationFiled: May 1, 2008Publication date: August 28, 2008Applicant: SIKA TECHNOLOGY AGInventors: Shingo TSUNO, Ria DE COOMAN
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Publication number: 20070142543Abstract: Described is an adhesive composition with a high elasticity, measured in terms of elongation at break, and an elastic behavior approaching the ideal Hook law in the stress-strain diagram. Said adhesive composition comprises (a) at least one monofunctional meth(acrylic) monomer A whose homo-polymer or co-polymer exhibit a glass transition temperature (Tg) between 40° C. and 140° C.Type: ApplicationFiled: February 9, 2007Publication date: June 21, 2007Applicant: SIKA SCHWEIZ AGInventors: Ria De Cooman, Werner Meyer, Rene Flury, Daniel Flury-Schafer
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Publication number: 20070093600Abstract: Described are adhesive compositions comprising (i) at least one reactive monomer (A) selected from ethylenically unsaturated carboxylic acid derivatives and mixtures of such derivatives, said one or more derivatives preferably being one or more esters, (ii) at least one liquid elastomer (B) in a molecular weight range of 1000-9000 which is functionalized with ethylenically unsaturated groups, (iii) at least one impact modifier (C) that is a core shell polymer that does not dissolve but swells in the monomer (i), and (iv) at least one free radical initiator and at least one catalyst, whereby the amount of B referred to the total amount of A+B is 15 to 60% by weight, and whereby optionally either said initiator, or said catalyst is present separately, in a further component or paste, respectively. Preferably the amount of C referred to the total amount of A+B+C=5-30% by weight.Type: ApplicationFiled: December 20, 2006Publication date: April 26, 2007Applicant: Sika Schweiz AGInventors: Ria DE COOMAN, Werner Meyer
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Publication number: 20060155045Abstract: The present invention relates to (meth)acrylic adhesives with high impact resistance and no or low odor. The compositions comprise at least a (meth)acrylic ester E which may be obtained by esterification of an alcohol ALC and methacrylic or acrylic acid, said alcohol ALC contains at least 5 carbon atoms; and at least a rubber block co-polymer RS being solid at room temperature and which is a co-polymer of styrene and butadiene and/or isoprene and/or ethylene propylene diene monomer; and at least a polymer PL having pending (meth)acrylic groups and is a butadiene/acrylonitrile co-poly- mer with terminal (meth)acrylic groups or a polyurethane (meth)acrylate or an ester obtainable by esterification of an alcohol ALC-II and methacrylic or acrylic acid and which has a molecular weight between 200 and 9000 g/mol. Such combinations E-RS-PL have lower viscosity than PL and a combination E-RS.Type: ApplicationFiled: June 3, 2005Publication date: July 13, 2006Applicant: SIKA TECHNOLOGY AGInventors: Shingo Tsuno, Ria De Cooman
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Publication number: 20060068147Abstract: The invention relates to surface treating agents for aerobic (meth)acrylate systems, which comprise one or more solvents, one or more (meth)acrylate monomers of the formula (A), wherein R=H or CH3 and m=1-3, p=3-m and n=1-5, with m, p, and n being an integer, and one or more substances of formula (B), wherein R1, R2 and R3 are H, alkyl, cycloalkyl, aryl, alkylaryl, alkenyl or halogen and R4 is H, methyl or ethyl. The invention further relates to a surface treating agent for aerobic (meth)acrylate systems, which comprises one or more solvents, one or more (meth)acrylate monomers of the formula (A), one or more substances of the formula (B), and one or more additional (meth)acrylate monomers that are devoid of phosphorous functional groups. The invention also describes articles whose surface consists, at least in the boundary zone, of organic polymers and that were pretreated with the inventive surface trearting agents.Type: ApplicationFiled: December 14, 2002Publication date: March 30, 2006Inventors: Ria De Cooman, Rene Flury, Daniel Flury-Schafer
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Publication number: 20050004304Abstract: Described is an adhesive composition with a high elasticity, measured in terms of elongation at break, and an elastic behavior approaching the ideal Hook law in the stress-strain diagram. Said adhesive composition comprises (a) at least one mono-functional meth(acrylic) monomer A whose homo-polymer or co-polymer exhibit a glass transition temperature (Tg) between 40° C. and 140° C.Type: ApplicationFiled: March 4, 2002Publication date: January 6, 2005Inventors: Ria De Cooman, Werner Meyer, Rene Flury
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Patent number: 6780962Abstract: Described are methacrylate or acrylate binders e.g. obtainable by the steps of (i) generating OH-precursors from at least one aromatic polyester, and (ii) reacting said OH-precursors of step (i) with methacrylic acid and/or acrylic acid to form a respective ester, whereby step (i) comprises reacting an aromatic polyester, or a mixture of aromatic polyesters with at least one polyol and/or at least one aminopolyol to generate hydroxy terminated oligomers. Optionally, a modified product can be obtained by performing a further reaction in step (i), namely by reacting said hydroxy terminated oligomer with at least one polycarboxylic acid and/or at least one polycarboxylic anhydride to generate said hydroxy terminated binder precursor oligomer.Type: GrantFiled: July 31, 2001Date of Patent: August 24, 2004Assignee: Sika Schweiz AGInventors: Dally Moya, Ria De Cooman, Werner Meyer
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Publication number: 20040077766Abstract: Described are adhesive compositions comprisingType: ApplicationFiled: August 19, 2003Publication date: April 22, 2004Inventors: Ria De Cooman, Werner R. Meyer
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Publication number: 20020042486Abstract: Described are methacrylate or acrylate binders e.g. obtainable by the steps of (i) generating OH-precursors from at least one aromatic polyester, and (ii) reacting said OH-precursors of step (i) with methacrylic acid and/or acrylic acid to form a respective ester, whereby step (i) comprises reacting an aromatic polyester, or a mixture of aromatic polyesters with at least one polyol and/or at least one aminopolyol to generate hydroxy terminated oligomers.Type: ApplicationFiled: July 31, 2001Publication date: April 11, 2002Inventors: Dally Moya, Ria De Cooman, Werner Meyer