公开(公告)号：US11060005B2

公开(公告)日：2021-07-13

申请号：US15771818

申请日：2016-10-10

Applicant: TESA SE

Inventor： Christian Schuh ,  Alexander Prenzel ,  Sarah Bamberg

IPC: C09J143/04 ,  C08F220/18 ,  C09J7/38 ,  C08F220/32 ,  C08F230/08 ,  C08F30/08 ,  C08F20/32

Abstract: The present invention relates to a cationically polymerizable composition comprising or consisting of: (a1) 35 to 90 wt % of at least one (meth)acrylic ester of the general formula (I) in which R1 is selected from H and CH3 and R2 is a linear or branched alkyl chain having 1 to 30 carbons; (a2) 5 to 30 wt % of at least one olefinically unsaturated monomer having at least one cationically polymerizable functional group; (a3) 5 to 30 wt % of at least one alkoxysilane-modified (meth)acrylic ester; (a4) optionally 5 to 30 wt % of at least one N-vinyl-substituted lactam; and (a5) optionally up to 5 wt % of at least one (meth)acrylic ester different from (a1) and/or of at least one olefinically unsaturated monomer which is copolymerizable with components (a1) to (a4). The invention further relates to a pressure sensitive adhesive and also to a structural pressure sensitive adhesive, which are obtainable by polymerization and optional subsequent additional crosslinking of such a composition, and also to the use of these pressure sensitive adhesives.

公开(公告)号：US10316117B2

公开(公告)日：2019-06-11

申请号：US15104288

申请日：2014-11-19

Applicant: TESA SE

Inventor： Stephan Zöllner ,  Alexander Prenzel ,  Bernd Lühmann ,  Benjamin Pütz ,  Helmut Ritter

IPC: C08F12/08 ,  C08F2/38 ,  C08G18/62 ,  C08G18/81 ,  C08F8/00 ,  C08F8/14

Abstract: End-group-functionalized oligomers with controlled degrees of functionality based on styrene are produced by reacting the monomer with a regulator by means of free-radical polymerization. At least some of the quantity of regulator is added according to a prescribed program so that at every juncture t the value of the quantitative fraction added up to said juncture does not fall short of the value of the respective conversion U(t) in the polymerization reaction at said juncture t by more than 5 percentage points and does not exceed said value U(t) by more than 5 percentage points.

公开(公告)号：US08846833B2

公开(公告)日：2014-09-30

申请号：US13720487

申请日：2012-12-19

Applicant: tesa SE

Inventor： Alexander Prenzel

IPC: C08F2/00 ,  C08F4/00 ,  C08F20/06 ,  C08F220/06 ,  C09J141/00 ,  C09J133/10 ,  C09J133/08 ,  C08F293/00 ,  C09J133/02

CPC classification number: C09J141/00 ,  C08F293/00 ,  C08F2438/03 ,  C09J133/02 ,  C09J133/08 ,  C09J133/10

Abstract: The invention relates to a process for preparing pressure-sensitive adhesives (PSAs) which have high molar masses in combination with a narrow molar mass distribution, and also to PSAs, especially polyacrylate-based PSAs, prepared accordingly. It has been found that, surprisingly, polymers with high molar masses and a narrow molar mass distribution, more particularly polyacrylates with high molar masses and a narrow molar mass distribution, can be prepared outstandingly in particular by means of RAFT processes in the presence of a diradical initiator which undergoes thermal cyclization to form a diradical, these polymers being suitable for use as high-shear-strength PSAs.

Abstract translation: 本发明涉及一种制备具有高摩尔质量并且结合窄摩尔质量分布的压敏粘合剂（PSA）的方法，以及相应制备的PSA，特别是基于聚丙烯酸酯的PSA。 已经发现令人惊奇的是，具有高摩尔质量和较低摩尔质量分布的聚合物，更特别是具有高摩尔质量和较窄摩尔质量分布的聚丙烯酸酯，可以特别通过RAFT法在 经历热环化以形成双向的双基引发剂，这些聚合物适合用作高剪切强度的PSA。

公开(公告)号：US20140179820A1

公开(公告)日：2014-06-26

申请号：US14103263

申请日：2013-12-11

Applicant: tesa SE

Inventor： Alexander Prenzel ,  Stephan Zöllner ,  Michael Siebert

IPC: C09J133/08

CPC classification number: C09J133/08 ,  C08L33/08 ,  C08L33/10 ,  C08L2312/06 ,  C09J133/10

Abstract: The invention provides meltable and UV-crosslinkable pressure-sensitive adhesives, such as acrylate hotmelts or hotmelt formulations, which can be processed by commonplace hotmelt processes and also on customary hotmelt coating lines, without any immediate alteration in the product properties in the event of (unwanted) deviation in the operational parameters. The compositions of the invention are UV-crosslinkable and meltable pressure-sensitive adhesives comprising (i) mixtures of UV-crosslinkable polyacrylate polymers selected from a) mixtures of UV-crosslinkable polymers with at least one photoinitiator bonded covalently to the backbone of the polymers, and b) mixtures of UV-crosslinkable polyacrylate polymers, monomers and at least one photoinitiator, and also (ii) at least one UV stabilizer, and also methods for producing them and the use thereof as bonding agents.

Abstract translation: 本发明提供了可熔融和可UV交联的压敏粘合剂，例如丙烯酸酯热熔体或热熔配方，其可以通过常见的热熔方法以及常规热熔涂层生产线进行加工，而不会立即改变产品性能（如 不需要的）偏差的操作参数。 本发明的组合物是UV可交联和可熔融的压敏粘合剂，其包含（i）可UV交联的聚丙烯酸酯聚合物的混合物，其选自a）UV可交联聚合物与至少一种光引发剂的混合物共价键合到聚合物的主链上， 和b）可UV交联的聚丙烯酸酯聚合物，单体和至少一种光引发剂的混合物，以及（ii）至少一种UV稳定剂，以及制备它们的方法及其用作粘合剂。

公开(公告)号：US11359115B2

公开(公告)日：2022-06-14

申请号：US16347361

申请日：2017-10-05

Applicant: TESA SE

Inventor： Alexander Prenzel ,  Julia Befuss

IPC: C09J7/38 ,  C09J133/02 ,  C09J11/02 ,  C09J133/10 ,  C09J7/10 ,  C08K5/00

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. This is achieved via a kit containing at least two pressure-sensitive adhesive layers A and B, where the two pressure-sensitive adhesive layers A and B mutually independently respectively comprise at least one polymer containing a multiplicity of carboxy groups; in the pressure-sensitive adhesive layer A a portion of the carboxy groups of the polymer containing these has been activated by reaction with an activator AA; and—the pressure-sensitive adhesive layer A—at least one crosslinking agent VA which can enter into a crosslinking reaction with the carboxy groups of the polymer containing these of the pressure-sensitive adhesive layers A and B, but which in the pressure-sensitive adhesive layer A is not significantly reactive; —the pressure-sensitive adhesive layer B—at least one crosslinking agent VB which can accelerate the crosslinking reaction of the carboxy groups of the polymer containing these of the pressure-sensitive adhesive layer B with the crosslinking agent VA and which can permit and accelerate the crosslinking reaction of the carboxy groups of the polymer containing these of the pressure-sensitive adhesive layer A with the crosslinking agent VA and can enter into a crosslinking reaction with the activated carboxy groups of the polymer containing these of the pressure-sensitive adhesive layer A. The invention moreover also relates to an adhesive tape which is obtainable via contact between the pressure-sensitive adhesive layers of the kit, and to a process for producing said adhesive tape.

公开(公告)号：US10808146B2

公开(公告)日：2020-10-20

申请号：US15757826

申请日：2016-08-16

Applicant: TESA SE

Inventor： Jennifer Beschmann ,  Alexander Prenzel

IPC: C09J133/08 ,  C08F220/18 ,  C08K5/07 ,  C08L33/08 ,  C08F2/48 ,  C09J133/10 ,  C09J7/38

Abstract: The invention relates to a UV-cross-linked, polyacrylate-based adhesive mass that has high adhesive force and high cohesion and that can be produced by means of a hot-melt process with subsequent cross-linking. This is achieved by providing an adhesive mass that can be obtained by cross-linking a composition, which comprises at least one poly(meth)acrylate having a weight-average molar mass Mw of at least 100,000 g/mol and at least one polyfunctional α-cleaver and is characterized in that the composition contains at least one adhesive-force-increasing resin having a weight average molar mass Mw of at most 30,000 g/mol, which resin can be obtained by polymerizing a monomer composition M1, comprising at least one compound according to formula (I) H2C═C(R1)(COOR2), wherein R1 represents a hydrogen atom or a methyl group and R2 represents a hydrogen atom or a functionalized or non-functionalized C1-C20 alkyl group.

公开(公告)号：US10174139B2

公开(公告)日：2019-01-08

申请号：US13745298

申请日：2013-01-18

Applicant: tesa SE

Inventor： Alexander Prenzel ,  Sarah Bamberg ,  Jennifer Beschmann ,  Marten Papenbroock

IPC: C08F20/10 ,  C09J133/08

Abstract: In the context of a polyacrylate-based composition, the intention is to allow controlled thermal crosslinking. This is accomplished by provision of a crosslinker-accelerator system for the thermal crosslinking of polyacrylates having functional groups suitable for entering into linking reactions with epoxide groups, comprising at least one substance comprising at least one epoxide group (crosslinker) and at least one substance conforming to the general formula (I) NR3  (I), in which the radicals R independently of one another are a hydrogen atom or an organic radical having 1 to 20 carbon atoms, with at least one of the radicals R being an organic radical with 1 to 20 carbon atoms, and comprising at least one alcoholic OH group.

公开(公告)号：US09908953B2

公开(公告)日：2018-03-06

申请号：US13745346

申请日：2013-01-18

Applicant: tesa SE

Inventor： Alexander Prenzel ,  Sarah Bamberg ,  Jennifer Beschmann ,  Marten Papenbroock

IPC: C08F20/18 ,  C09J133/00 ,  C09J133/08 ,  C09J133/10 ,  C09J133/12 ,  C08K5/17 ,  C08K5/1515

CPC classification number: C08F20/18 ,  C08K5/1515 ,  C08K5/17 ,  C09J133/00

Abstract: Controlled thermal crosslinking in a polyacrylate-based composition is accomplished by a crosslinker-accelerator system for the thermal crosslinking of polyacrylates having functional groups suitable for entering into linking reactions with epoxide groups, comprising at least one substance comprising at least one epoxide group (crosslinker) and at least one substance of the general formula (I) R1R2N—CR3R4—CR5R6—(CR7R8)n—NR9R10  (I) wherein the radicals R1, R2, R9 and R10 independently of one another are a hydrogen atom or a substituted or unsubstituted alkyl or cycloalkyl radical having 1 to 8 carbon atoms or an alkylene group bonded to the main chain and having 1 to 8 carbon atoms, where at least one of the radicals R1, R2, R9 and R10 is not a hydrogen atom; the radicals R3, R4, R5, R6, R7 and R8 independently of one another are a hydrogen atom or an alkyl group having 1 to 8 carbon atoms or form a 5-7-membered cycloalkylene group; and n is an integer from 0 to 4 (accelerator).

公开(公告)号：US09613733B2

公开(公告)日：2017-04-04

申请号：US14328780

申请日：2014-07-11

Applicant: tesa SE

Inventor： Michael Siebert ,  Alexander Prenzel

IPC: H01B13/012 ,  H01B13/00 ,  C09J5/04 ,  C09J7/04

CPC classification number: H01B13/0013 ,  C09J5/04 ,  C09J7/21 ,  C09J7/35 ,  C09J2203/302 ,  C09J2400/263 ,  C09J2433/00 ,  C09J2463/00

Abstract: Method for jacketing elongate material such as more particularly leads or cable looms, where an adhesive tape comprising a carrier, more particularly textile carrier with a curative composition applied to its top side and a reactive composition to its bottom side, is passed in a helical line around the elongate material, or the elongate material is wrapped in the axial direction by the adhesive tape in such a way that the curative composition and the reactive composition come into contact, the elongate material together with the adhesive tape wrapping is brought into the desired disposition, more particularly into the cable loom layout, the elongate material is held in this disposition, the curative composition reacts with the reactive composition, to produce a curing layer of composition.

公开(公告)号：US20140288242A1

公开(公告)日：2014-09-25

申请号：US14356477

申请日：2012-09-28

Applicant: TESA SE

Inventor： Alexander Prenzel

IPC: C08F8/42 ,  C08F8/00

CPC classification number: C08F8/42 ,  C08F2/38 ,  C08F8/00 ,  C08F8/48 ,  C08F220/18 ,  C08F2438/03 ,  C08F2800/20 ,  C08F2810/20 ,  C08F2810/30 ,  C08F2810/40 ,  C09J153/005 ,  C08F2220/1858 ,  C08F2220/1825 ,  C08F220/06 ,  C08F293/005

Abstract: Method for producing polyacrylate adhesive compounds with a narrow molar mass distribution by radical polymerization and subsequent decolorization of colored reaction products resulting therefrom.

Abstract translation: 通过自由基聚合制造具有窄摩尔质量分布的聚丙烯酸酯粘合剂化合物的方法，随后由其产生的着色反应产物脱色。