Patents by Inventor Frederic Gubbels
Frederic Gubbels 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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Publication number: 20240116221Abstract: This disclosure relates to a method for reducing gas bubble entrapment from bulk cured room temperature condensation curable silicone compositions. The method comprising applying a predefined volume of a bulk cured room temperature condensation curable silicone composition bulk curable silicone composition onto or into a target substrate. The method further comprising at least initially curing the composition in an atmosphere having a relative humidity of X %, wherein X has a value in the range of 0<X?40%, for a predetermined time or until no gas bubbles remain visible in the composition.Type: ApplicationFiled: February 16, 2022Publication date: April 11, 2024Inventors: Thomas DAVIDIAN, Davide Dei Santi, Gregory CHAMBARD, Frederic GUBBELS
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Publication number: 20230407092Abstract: Aqueous silicone emulsion compositions which cure utilising titanium-based reaction products as catalysts, and a process to prepare the same and their uses, are provided. The composition comprises (a) a titanium-based reaction product; (b) one or more silicon containing compounds having at least 2 or at least 3 hydroxyl and/or hydrolysable groups per molecule; (c) one or more surfactants; and (d) water. The titanium-based reaction product (a) is obtained or obtainable from a process comprising the steps of: (i) mixing a first ingredient, an alkoxy titanium compound having from 2 to 4 alkoxy groups with a second ingredient, a linear or branched polydiorganosiloxane having at least two terminal silanol groups per molecule and a viscosity of from 30 to 300,000 mPa·s at 25° C.; (ii) enabling the first and second ingredients to react together by stirring under vacuum to form a reaction product; and (iii) collecting the reaction product of step (ii).Type: ApplicationFiled: November 16, 2021Publication date: December 21, 2023Inventors: Frederic GUBBELS, Tatiana DIMITROVA
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Publication number: 20230407013Abstract: A process for the preparation of a titanium-based reaction product is provided. The titanium-based reaction product comprises the reaction product of an alkoxy titanium compound and a silanol terminated polydiorganosiloxane. The polydiorganosiloxane typically has at least two silanol groups per molecule. The titanium-based reaction product is also described, as is its use as a catalyst, having improved stability in the presence of water, for condensation curable silicone compositions. The titanium-based reaction product may additionally at least partially replace the need for a separate polymer to be used in the condensation curable silicone compositions.Type: ApplicationFiled: November 16, 2021Publication date: December 21, 2023Inventor: Frederic GUBBELS
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Publication number: 20230391960Abstract: Two-part condensation curable silicone compositions and their applications are provided. Also provided is a new titanium-based reaction product, which, because of its incorporation as a catalyst, is able to provide compositions having both improved stability in the presence of water and accelerated cure processes when compared to conventional titanium catalysts. The titanium-based reaction product is obtained or obtainable from a process comprising the steps of: (i) mixing a first ingredient, an alkoxy titanium compound having from 2 to 4 alkoxy groups with a second ingredient, a linear or branched polydiorganosiloxane polymer having at least two terminal silanol groups per molecule; (ii) enabling the first and second ingredients to react together by stirring under vacuum to form a reaction product; and collecting the reaction product of step (ii).Type: ApplicationFiled: November 16, 2021Publication date: December 7, 2023Inventor: Frederic GUBBELS
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Publication number: 20230104163Abstract: There is provided silicone based materials with enhanced tackiness upon cure. These may be used for cured self-adhering silicone-based products such as pressure sensitive adhesives, self-adhering materials and/or self-sealing materials, made from condensation curable silicone-based compositions, the compositions therefor and to applications for which said self-adhesive products may be used. In one particular application the cured silicone based material may be utilised as a self-sealing layer in an inflatable article such as a pneumatic tire.Type: ApplicationFiled: October 6, 2020Publication date: April 6, 2023Inventors: Frederic GUBBELS, Victor BAILEY
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Publication number: 20230106847Abstract: The present disclosure relates to self-sealing tires, a process for making said self-sealing tires and the use of a silicone composition cured via a condensation cure chemistry to form a self-sealing layer designed to function as both (i) a self-sealing tire puncture material, i.e., to seal puncture holes in the tread region of tires if/when punctured by a foreign body and (ii) as an adhesive for sound-absorbing foams adapted to reduce the noise generated by tires during travel.Type: ApplicationFiled: October 6, 2020Publication date: April 6, 2023Inventors: Frederic GUBBELS, Gregory CHAMBARD
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Publication number: 20230102289Abstract: Provided are fast curing two-part condensation curable silicone compositions which cure by using titanium and/or zirconium based catalysts to generate cured gel materials which are suitable for encapsulating and/or potting electrical and/or electronic articles.Type: ApplicationFiled: October 22, 2020Publication date: March 30, 2023Inventors: Lei FANG, Frederic GUBBELS
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Patent number: 11512237Abstract: A room temperature curable sealant/adhesive composition is disclosed. The room temperature curable sealant/adhesive composition comprises: A) one or more organopolysiloxanes; B) a hydrophilic material; C) a cross-linker; D) a titanate catalyst and/or a zirconate catalyst; and E) one or more optional ingredients. A silicone elastomer formed therefrom and related methods are also disclosed. In general, such compositions (upon several hours of contact with water) do not repel water, but rather retain and pick-up water and/or can be wetted by aqueous materials subsequent to exposure.Type: GrantFiled: December 23, 2020Date of Patent: November 29, 2022Assignee: DOW SILICONES CORPORATIONInventors: Tommy Detemmerman, Tatiana Dimitrova, Frederic Gubbels
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Patent number: 11479022Abstract: A lamination process is disclosed. The process is useful for silicone based lamination adhesive compositions, in particular those which cure at or around room temperature.Type: GrantFiled: February 7, 2018Date of Patent: October 25, 2022Assignee: DOW SILICONES CORPORATIONInventors: Frederic Gubbels, Victor Baily, Gregory Chambard, Guy Beaucarne
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Publication number: 20220274353Abstract: A method for molding shaped silicone elastomeric articles from room temperature curable silicone compositions, which are practically not suited to being processed using extrusion techniques, is provided. The method enables the room temperature curable silicone composition to cure in a predefined shape (6) into which it is introduced to form a shaped silicone elastomeric article. The articles may be, for the sake of example, suitable for use as spacers for insulating glass units (IGUs).Type: ApplicationFiled: August 11, 2020Publication date: September 1, 2022Inventors: Gregory CHAMBARD, Davide DEI SANTI, Thomas DAVIDIAN, Frederic GUBBELS, Kevin VAN TIGGELEN, Peter Hermann Roland SANDKUEHLER
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Publication number: 20220235180Abstract: A condensation curable gel composition is disclosed. The composition comprises: (i) at least one condensation curable silyl terminated polymer having at least one hydrolysable and/or hydroxyl functional group(s) per molecule; (ii) a cross-linker selected from the group of a silicone, an organic polymer, a monosilane or a disilane molecule which contains at least two hydrolysable groups per molecule; and (iii) a condensation catalyst selected from the group of titanates, zirconates or tin (II). The molar ratio of hydroxyl and/or hydrolysable groups in polymer (i) to hydrolysable groups from component (ii) is between 0.5:1 and 1:1 using a monosilane cross-linker or 0.75:1 to 3:1 using disilanes. The titanates and zirconates comprise M-OR functions where M is titanium or zirconium and R is an aliphatic hydrocarbon group. The molar ratio of M-OR or tin (II) functions to the hydroxyl and/or hydrolysable groups in polymer (i) is comprised between 0.01:1 and 0.5:1.Type: ApplicationFiled: April 12, 2022Publication date: July 28, 2022Inventors: Frederic GUBBELS, Sandrine TEIXEIRA de CARVALHO
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Patent number: 11332581Abstract: A condensation curable gel composition is the disclosed. The composition comprises: (i) at least one condensation curable silyl terminated polymer having at least one hydrolysable and/or hydroxyl functional group(s) per molecule; (ii) a cross-linker selected from the group of a silicone, an organic polymer, a monosilane or a disilane molecule which contains at least two hydrolysable groups per molecule; and (iii) a condensation catalyst selected from the group of titanates, zirconates or tin (II). The molar ratio of hydroxyl and/or hydrolysable group(s) in polymer (i) to hydrolysable groups from component (ii) is between 0.5:1 and 1:1 using a monosilane cross-linker or 0.75:1 to 3:1 using disilanes. The titanates and zirconates comprise M-OR functions where M is titanium or zirconium and R is an aliphatic hydrocarbon group. The molar ratio of M-OR or tin (II) functions to the hydroxyl and/or hydrolysable groups in polymer (i) is comprised between 0.01:1 and 0.5:1.Type: GrantFiled: December 30, 2019Date of Patent: May 17, 2022Assignee: DOW SILICONES CORPORATIONInventors: Frederic Gubbels, Sandrine Teixeira de Carvalho
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Patent number: 11254847Abstract: Two part silicone lamination adhesive compositions which cure via a condensation cure chemistry using titanium and/or zirconium based catalysts at room temperature are disclosed. The compositions comprise: (i) at least one condensation curable silyl terminated polymer having at least one hydrolysable and/or hydroxyl functional group(s) per molecule; (ii) a cross-linker; and (iii) a condensation catalyst selected from the group of titanates and zirconates. Polymer (i) is not stored in the same part as cross-linker (ii) and catalyst (iii). Catalyst (iii) is present in a molar amount which is at least 50% of the moisture present cumulatively in the parts of the composition. The molar ratio of silicon bonded hydroxyl groups in polymer (i) to hydrolysable groups in cross-linker (ii) is above 0.15. The molar ratio of the silicon bonded hydroxyl groups in polymer (i) to M-OR functions is greater than 10, where M is titanium or zirconium.Type: GrantFiled: February 7, 2018Date of Patent: February 22, 2022Assignee: DOW SILICONES CORPORATIONInventors: Frederic Gubbels, Victor Baily
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Patent number: 11090253Abstract: Cosmetic compositions comprising silicone based materials cured via a condensation cure chemistry are disclosed. In particular, the present disclosure relates to cosmetic compositions comprising a silicone based gel cured via a condensation cure chemistry; and at least one cosmetic ingredient, optionally in a cosmetically acceptable medium. Preparation methods and uses of the cosmetic compositions are also disclosed.Type: GrantFiled: August 3, 2017Date of Patent: August 17, 2021Assignee: DOW SILICONES CORPORATIONInventors: Sylvie Bouzeloc, Tatiana Dimitrova, Charlene Fournier, Frederic Gubbels
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Publication number: 20210108114Abstract: A room temperature curable sealant/adhesive composition is disclosed. The room temperature curable sealant/adhesive composition comprises: A) one or more organopolysiloxanes; B) a hydrophilic material; C) a cross-linker; D) a titanate catalyst and/or a zirconate catalyst; and E) one or more optional ingredients. A silicone elastomer formed therefrom and related methods are also disclosed. In general, such compositions (upon several hours of contact with water) do not repel water, but rather retain and pick-up water and/or can be wetted by aqueous materials subsequent to exposure.Type: ApplicationFiled: December 23, 2020Publication date: April 15, 2021Inventors: Tommy DETEMMERMAN, Tatiana DIMITROVA, Frederic GUBBELS
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Patent number: 10907401Abstract: Improvements in or relating to transparent units (such as glazing units, which may also be referred to as insulating glass units) and their methods of manufacture are disclosed. Each transparent unit comprises first and second panes of transparent material each having an outwardly facing side and an inwardly facing side. Each inwardly facing side is at least partially coated with a reactive interlayer made by the application of a reactive interlayer coating composition. The inwardly facing side of the first and second panes of transparent material are spaced apart partially or totally by a transparent spacer made of a pre-cured condensation curable material or a substantially pre-cured condensation curable material adhered to the inwardly facing side of the first and second panes of transparent material by way of the reactive interlayers. In various embodiments, the pre-cured condensation curable material is a silicone based material.Type: GrantFiled: February 7, 2018Date of Patent: February 2, 2021Assignee: Dow Silicones CorporationInventors: Frederic Gubbels, Victor Baily, Tatiana Dimitrova, Davide Bianchi
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Patent number: 10889738Abstract: A room temperature curable sealant/adhesive composition is disclosed. The room temperature curable sealant/adhesive composition comprises: (A) one or more organopolysiloxanes; (B) a hydrophilic material; (C) a cross-linker; (D) a titanate or zirconate catalyst; and (E) one or more optional ingredients. A silicone elastomer formed therefrom and related methods are also disclosed.Type: GrantFiled: November 18, 2016Date of Patent: January 12, 2021Assignee: Dow Silicones CorporationInventors: Tommy Detemmerman, Tatiana Dimitrova, Frederic Gubbels
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Publication number: 20200399514Abstract: Two part silicone lamination adhesive compositions which cure via a condensation cure chemistry using titanium and/or zirconium based catalysts at room temperature are disclosed. The compositions comprise: (i) at least one condensation curable silyl terminated polymer having at least one hydrolysable and/or hydroxyl functional group(s) per molecule; (ii) a cross-linker; and (iii) a condensation catalyst selected from the group of titanates and zirconates. Polymer (i) is not stored in the same part as cross-linker (ii) and catalyst (iii). Catalyst (iii) is present in a molar amount which is at least 50% of the moisture present cumulatively in the parts of the composition. The molar ratio of silicon bonded hydroxyl groups in polymer (i) to hydrolysable groups in cross-linker (ii) is above 0.15. The molar ratio of the silicon bonded hydroxyl groups in polymer (i) to M-OR functions is greater than 10, where M is titanium or zirconium.Type: ApplicationFiled: February 7, 2018Publication date: December 24, 2020Inventors: Frederic GUBBELS, Victor BAILY
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Publication number: 20200398537Abstract: A lamination process is disclosed. The process is useful for silicone based lamination adhesive compositions, in particular those which cure at or around room temperature.Type: ApplicationFiled: February 7, 2018Publication date: December 24, 2020Inventors: Frederic GUBBELS, Victor BAILY, Gregory CHAMBARD, Guy BEAUCARNE
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Patent number: 10844177Abstract: The present disclosure relates to self-sealing silicone sealant and/or gel compositions cured via a condensation cure chemistry and to their use subsequent to cure as puncture-resistant layers in any type of “inflatable” article, i.e. articles which take their functional shape after inflation with a suitable gas such as air. The present disclosure also relates to silicone materials, e.g. elastomers and/or gels obtained subsequent to curing said compositions designed to function as self-sealing tire puncture material, i.e. to seal puncture holes in the tread region of tires if/when punctured by a foreign body.Type: GrantFiled: August 3, 2017Date of Patent: November 24, 2020Assignee: Dow Silicones CorporationInventors: Victor Baily, Gregory Chambard, Frederic Gubbels