Patents by Inventor David Goubard
David Goubard 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: 11920065Abstract: A self-adhesive article comprises an adhesive layer comprising a crosslinked adhesive composition, which comprises at least one polysilylated polymer having a number-average molar mass (Mn) of at least 20000 g/mol, wherein the at least one polysilylated polymer comprises a polyether and/or polyurethane main chain and at least two hydrolysable silylated end groups, said silylated end groups being attached to the main chain of the polymer by a urethane or ether function (referred to as a connector group); at least one tackifying resin having an average hydroxyl number of less than or equal to 100; and at least one crosslinking catalyst, excluding any monosilylated polymer.Type: GrantFiled: October 24, 2017Date of Patent: March 5, 2024Assignee: BOSTIK SAInventors: David Goubard, Olivier Laferte
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Patent number: 11674057Abstract: The present invention relates to a heat-crosslinkable adhesive composition comprising: —from 20% to 84% by weight of composition (A); —from 15% to 79% by weight of a compatible tackifying resin (B), —from 0.01% to 5% by weight of a crosslinking catalyst (C). The invention also relates to a self-adhesive item obtained by preheating said composition, coating on a support layer, then crosslinking by heating.Type: GrantFiled: July 26, 2018Date of Patent: June 13, 2023Assignee: BOSTIK SAInventor: David Goubard
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Patent number: 11492518Abstract: A hot-melt adhesive composition comprises a mixture of silylated polymers, a tackifying resin and a catalyst, in specific contents, having self-adhesive properties after crosslinking to moisture. A self-adhesive article comprises a support layer and at least one self-adhesive layer obtained after crosslinking to the moisture in the adhesive composition according to the invention. The self-adhesive article can be used to bond low-energy substrates, in particular plastic substrates, notably thermoplastic substrates having low surface energy.Type: GrantFiled: October 24, 2017Date of Patent: November 8, 2022Assignee: BOSTIK SAInventors: David Goubard, Olivier Laferte
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Publication number: 20220314514Abstract: The present disclosure relates to a process of manufacturing a moisture-curable adhesive composition, wherein the process comprises the steps of: a) providing a multi-screw extruder comprising a reaction chamber; b) providing reactants and reagents comprising: i. at least one isocyanate; ii. at least one amine; and iii. optionally, at least one plasticizer; c) incorporating the reactants and reagents into the reaction chamber of the multi-screw extruder, thereby forming a reaction product comprising a urea derivative; and d) incorporating at least one moisture-curable prepolymer into the reaction product resulting from step c), thereby forming a moisture-curable adhesive composition. In another aspect, the present disclosure is directed to a moisture-curable adhesive composition obtainable by the process as described above.Type: ApplicationFiled: July 14, 2020Publication date: October 6, 2022Inventors: David Goubard, Bérénice Stegel, Eric Schmitt
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Patent number: 11160764Abstract: The invention relates to a silyl-containing polymer that is used, together with a tackifying resin to form an adhesive composition capable of storing and delivering drugs to the skin of a user. Typically the composition is formed into a patch which shows excellent adhesion to the skin even when drugs and other additives are dissolved into the composition.Type: GrantFiled: November 2, 2016Date of Patent: November 2, 2021Assignees: Medherant Limited, Bostik SAInventors: David Haddleton, David Goubard, Ciaran O'Driscoll
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Publication number: 20210071040Abstract: The present invention relates to a heat-crosslinkable adhesive composition comprising: —from 20% to 84% by weight of a composition (A); —from 15% to 79% by weight of a compatible tackifying resin (B), —from 0.01% to 5% by weight of a crosslinking catalyst (C). The invention also relates to a self-adhesive item obtained by preheating said composition, coating on a support layer, then crosslinking by heating.Type: ApplicationFiled: July 26, 2018Publication date: March 11, 2021Applicant: Bostik SAInventor: David GOUBARD
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Patent number: 10898389Abstract: The invention relates to the use of an adhesive composition comprising at least one silyl-containing polymer, at least one compatible tackifying resin and at least one catalyst, to make a breathable self-adhesive article. The invention also relates to a breathable self-adhesive article comprising at least one breathable substrate coated with a breathable adhesive layer. The invention also relates to a pressure-sensitive adhesive composition.Type: GrantFiled: March 12, 2012Date of Patent: January 26, 2021Assignee: BOSTIK SAInventor: David Goubard
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Patent number: 10633560Abstract: The invention relates to a method for cross-linking a cross-linkable adhesive composition without solvent on a film, comprising driving and/or guiding said film in a climatic chamber, by a Caroll-type drive or guide. The invention also relates to a climatic chamber comprising a Caroll-type drive or guide. The invention also relates to a process for manufacturing a self-adhesive article comprising at least a substrate and an adhesive layer, said process comprising the steps of: a) conditioning an adhesive composition at a temperature of between 20 and 160° C.; b) coating the adhesive composition b1) onto at least a part of the substrate or b2) onto a non-sticking support; submitting the article obtained at step b) to a controlled atmosphere. The invention also relates to self-adhesive articles having high coating weights and to processes for bonding them.Type: GrantFiled: December 26, 2011Date of Patent: April 28, 2020Assignee: BOSTIK SAInventors: Jean Francois Chartrel, David Goubard, Nicolas Sajot, Johan Gerrit Jan De Jonge
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Publication number: 20190256745Abstract: The present invention relates to: a hot-melt adhesive composition comprising a mixture of silylated polymers, a tackifying resin and a catalyst, in specific contents, having self-adhesive properties after crosslinking to moisture; a self-adhesive article comprising a support layer and at least one self-adhesive layer obtained after crosslinking to the moisture in the adhesive composition according to the invention; and the use thereof to bond low-energy substrates, in particular plastic substrates, notably thermoplastic substrates having low surface energy.Type: ApplicationFiled: October 24, 2017Publication date: August 22, 2019Inventors: David GOUBARD, Olivier LAFERTE
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Publication number: 20190249038Abstract: The present invention relates to the bonding of low-surface-energy substrates, in particular plastic substrates, especially thermoplastic low-surface-energy substrates. In particular, the present invention relates to a specific hot melt adhesive composition having self-adhesive properties after moisture crosslinking, as well as a self-adhesive article such as a multilayer system, intended for that purpose.Type: ApplicationFiled: October 24, 2017Publication date: August 15, 2019Inventors: David GOUBARD, Olivier LAFERTE
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Publication number: 20180355283Abstract: 1) Cleaning composition comprising: from 5% to 99% of a thermoplastic polymer which does not react with moisture (a), from 1% to 15% of a monofunctional silane compound (b); from 0% to 94% of a compound (c) chosen from a plasticizer (c1), an oil (c2) or a tackifying resin (c3); said composition being homogeneous and having a Brookfield viscosity, measured at 100° C., within the range extending from 20 to 200 000 mPa·s. 2) Process for cleaning the walls of items of industrial equipment which are coated with a layer of composition C comprising a polymer P having alkoxysilane groups, said process comprising the mixing of said composition C with the cleaning composition according to 1).Type: ApplicationFiled: December 6, 2016Publication date: December 13, 2018Applicant: BOSTIK SAInventor: David GOUBARD
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Publication number: 20180318233Abstract: The invention relates to a silyl-containing polymer that is used, together with a tackifying resin to form an adhesive composition capable of storing and delivering drugs to the skin of a user. Typically the composition is formed into a patch which shows excellent adhesion to the skin even when drugs and other additives are dissolved into the composition.Type: ApplicationFiled: November 2, 2016Publication date: November 8, 2018Applicants: Medherant Limited, Bostik SAInventors: David Haddleton, David Goubard, Ciaran O'Driscoll
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Patent number: 9988528Abstract: The present invention relates to a hot-melt pressure-sensitive adhesive (HMPSA) composition. The composition includes: a) 25 to 50% of a styrene block copolymer chosen from the group comprising SIS, SIBS, SEBS and SEPS block copolymers; b) 35 to 75% of a compatible tackifying resin having a softening temperature of between 80 and 150° C. and an acid number of less than 20; and c) 0.5 to 20% of one or more carboxylic acids, the hydrocarbon chain of which includes 6 to 22 carbon atoms. The present invention also relates to a multilayer system including an HMPSA layer, a printable support layer, and an adjacent protective layer. Further, the present invention also includes a corresponding self-adhesive label and process for recycling a labeled article which entails debonding of the label by immersing the article in a hot basic aqueous solution.Type: GrantFiled: June 26, 2008Date of Patent: June 5, 2018Assignee: BOSTIK, S.A.Inventors: Stéphane André Fouquay, David Goubard
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Patent number: 9976066Abstract: The present invention relates to a self-adhesive article comprising a support layer of foam or similar type and an adhesive layer obtained by cross-linking an adhesive composition. The present invention also relates to a mixture of at least two polymers suitable for use for the manufacture of the self-adhesive article as well as an adhesive composition comprising said mixture of at least two polymers according to the invention.Type: GrantFiled: November 10, 2016Date of Patent: May 22, 2018Assignee: BOSTIK SAInventors: David Goubard, Olivier Laferte, Herveline Troadec
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Patent number: 9873822Abstract: The present invention relates to a self-adhesive article comprising a support layer of foam or similar type and an adhesive layer obtained by cross-linking an adhesive composition. The present invention also relates to a mixture of at least two polymers suitable for use for the manufacture of the self-adhesive article as well as an adhesive composition comprising said mixture of at least two polymers according to the invention.Type: GrantFiled: November 10, 2016Date of Patent: January 23, 2018Assignee: BOSTIK SAInventors: David Goubard, Olivier Laferte, Herveline Troadec
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Patent number: 9850411Abstract: The invention relates to the use of an adhesive composition to provide a bonding in a wet environment. The invention also relates to a method for providing a bonding in a wet environment.Type: GrantFiled: July 5, 2013Date of Patent: December 26, 2017Assignee: BOSTIK SAInventor: David Goubard
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Publication number: 20170058166Abstract: The present invention relates to a self-adhesive article comprising a support layer of foam or similar type and an adhesive layer obtained by cross-linking an adhesive composition. The present invention also relates to a mixture of at least two polymers suitable for use for the manufacture of the self-adhesive article as well as an adhesive composition comprising said mixture of at least two polymers according to the invention.Type: ApplicationFiled: November 10, 2016Publication date: March 2, 2017Applicant: BOSTIK SAInventors: David GOUBARD, Olivier LAFERTE, Herveline TROADEC
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Publication number: 20170058165Abstract: The present invention relates to a self-adhesive article comprising a support layer of foam or similar type and an adhesive layer obtained by cross-linking an adhesive composition. The present invention also relates to a mixture of at least two polymers suitable for use for the manufacture of the self-adhesive article as well as an adhesive composition comprising said mixture of at least two polymers according to the invention.Type: ApplicationFiled: November 10, 2016Publication date: March 2, 2017Applicant: BOSTIK SAInventors: David GOUBARD, Olivier LAFERTE, Herveline TROADEC
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Patent number: 9493690Abstract: The present invention relates to a self-adhesive article comprising a support layer of foam or similar type and an adhesive layer obtained by cross-linking an adhesive composition. The present invention also relates to a mixture of at least two polymers suitable for use for the manufacture of the self-adhesive article as well as an adhesive composition comprising said mixture of at least two polymers according to the invention.Type: GrantFiled: December 23, 2014Date of Patent: November 15, 2016Assignee: BOSTIK SAInventors: David Goubard, Olivier Laferte, Herveline Troadec
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Patent number: 9493692Abstract: The present invention relates to a self-adhesive article comprising a support layer of foam or similar type and an adhesive layer obtained by cross-linking an adhesive composition. The present invention also relates to a mixture of at least two polymers suitable for use for the manufacture of the self-adhesive article as well as an adhesive composition comprising said mixture of at least two polymers according to the invention.Type: GrantFiled: December 23, 2014Date of Patent: November 15, 2016Assignee: BOSTIK SAInventors: David Goubard, Olivier Laferte, Herveline Troadec