Patents by Inventor Julia BEFUSS

Julia BEFUSS 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).

  • Publication number: 20230312994
    Abstract: Adhesive tapes suitable for bonding to clearcoat materials and exhibiting a good shear strength and a bond strength compatible with requirements. Methods apply the adhesive tapes onto clearcoat materials. The adhesive tapes comprise a carrier layer and a layer of pressure-sensitive adhesive, arranged on the outside in the structure of the adhesive tape. The layer of pressure-sensitive adhesive comprises: at least one polymer selected from poly(meth)acrylates and polydiene block copolymers, or at least one blend of at least one poly(meth)acrylate and at least one polydiene block copolymer; and a tackifier resin component comprising at least one terpene phenolic resin, wherein the terpene phenolic resin has a softening temperature as determined by the ring-and-ball method according to ASTM E28, of not more than 140° C.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 5, 2023
    Applicant: tesa SE
    Inventors: Thilo DOLLASE, Julia BEFUß, Jan Ole PÖHLS, Julia GARBERS
  • Patent number: 11359115
    Abstract: The intention is to provide an adhesive system which is stable in storage and which when used permits precise positioning of the adhesive, and which can be crosslinked without exceeding moderate temperatures. The said system is moreover intended to provide strong adhesive bonds that attain high performance levels.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: June 14, 2022
    Assignee: TESA SE
    Inventors: Alexander Prenzel, Julia Befuss
  • Publication number: 20220041902
    Abstract: Disclosed are powerful adhesive tapes, which rapidly coat rough and/or curved surfaces with different surface energies and thereby build up high adhesion. The adhesive joints formed in this way furthermore have good shear strength, even at elevated temperatures. Finally, enduring mechanical loading on the adhesive joints does not lead to the adhesive tape peeling from the surface. This is achieved with an adhesive tape comprising at least one foamed layer and at least one adhesive compound layer, wherein the adhesive compound layer contains at least one poly(meth)acrylate, and the poly(meth)acrylate is cross-linked with at least one covalent and at least one coordinative cross-linker.
    Type: Application
    Filed: December 10, 2019
    Publication date: February 10, 2022
    Applicant: TESA SE
    Inventors: Alexander PRENZEL, Ji LI, Julia BEFUSS
  • Publication number: 20190284446
    Abstract: The intention is to provide an adhesive system which is stable in storage and which when used permits precise positioning of the adhesive, and which can be crosslinked without exceeding moderate temperatures. The said system is moreover intended to provide strong adhesive bonds that attain high performance levels.
    Type: Application
    Filed: October 5, 2017
    Publication date: September 19, 2019
    Inventors: Alexander PRENZEL, Julia BEFUSS
  • Publication number: 20170292040
    Abstract: A powerful pressure-sensitive adhesive which is notable by way of good wetting and dewetting behaviour on surfaces having different surface energies comprises at least 50 wt %, based on the total weight of the pressure-sensitive adhesive, of at least one polymer A which may be derived from the following monomer composition: a1) 55 to 75 wt % of at least one (meth)acrylic ester having a homopolymer glass transition temperature of not more than ?60° C. and an alcohol component based on a branched, primary alcohol, having an iso index of 1; a2) 20 to 40 wt % of at least one (meth)acrylic ester having an alcohol component based on a linear C1-C18 alcohol; a3) 5 to 15 wt % of acrylic acid. The pressure-sensitive adhesive of the invention reveals particularly good properties when combined with a foamed carrier.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 12, 2017
    Applicant: tesa SE
    Inventors: SARAH ALEED, JULIA BEFUSS, ALEXANDER PRENZEL, THOMAS SCHUBERT
  • Publication number: 20170292041
    Abstract: A pressure-sensitive adhesive for bonding to various surfaces, such as metals, plastics, and also vehicle finishes, with rapid wetting and high adhesion, with good shear strengths and bond strengths under different conditions and without undergoing dewetting even under lasting mechanical load, comprises: a) at least 50 wt % of at least one polymer A whose monomer basis comprises the following monomers: a1) at least one (meth)acrylic ester having a homopolymer glass transition temperature of not more than ?60° C. and an alcohol component based on a branched, primary alcohol, having an iso index of 1; a2) at least one (meth)acrylic ester having an alcohol component based on a linear C1-C18 alcohol; a3) acrylic acid; b) at least 5 wt % of at least one synthetic rubber; and c) at least 10 wt % of at least one peel adhesion-reinforcing resin. Also disclosed is an adhesive tape comprising a foamed carrier and the pressure-sensitive adhesive.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 12, 2017
    Applicant: tesa SE
    Inventors: MARTA LUNDING, JULIA BEFUSS, ALEXANDER PRENZEL, THOMAS SCHUBERT
  • Publication number: 20170183547
    Abstract: The intention is to provide a thermally crosslinkable, polyacrylate-based composition which can be processed from the melt and is distinguished by long pot life and by rapid and complete or near-complete crosslinkability even at relatively low temperatures, which can be processed to a pressure-sensitive adhesive. This aim is accomplished with a composition which comprises a) at least one crosslinkable poly(meth)acrylate; b) at least one organosilane conforming to the formula (1) R1—Si(OR2)nR3m??(1), in which R1 is a radical containing a cyclic ether function, the radicals R2 independently of one another are each an alkyl or acyl radical, R3 is a hydroxyl group or an alkyl radical, n is 2 or 3 and m is the number resulting from 3-n; and c) at least one substance accelerating the reaction of the crosslinkable poly(meth)acrylate with the cyclic ether functions. The patent application further provides a pressure-sensitive adhesive obtainable from the composition.
    Type: Application
    Filed: November 23, 2016
    Publication date: June 29, 2017
    Inventors: Sarah Bamberg, Julia BEFUSS, Benjamin PUETZ, Alexander PRENZEL