公开(公告)号：US20230183398A1

公开(公告)日：2023-06-15

申请号：US18085574

申请日：2022-12-21

Applicant: tesa SE

Inventor： Bianca MAYER ,  Benjamin PUETZ ,  Ralf KRETZMER ,  Alexander ENGEL

IPC: C08F120/06 ,  C09J133/08 ,  B32B37/12

CPC classification number: C08F120/06 ,  C09J133/08 ,  B32B37/12 ,  C09J2301/302

Abstract: A pressure-sensitive adhesive for bonding printing plates comprises one or more poly(meth)acrylates in a combined mass fraction of 50% or more and preparable by polymerization of a monomer composition comprising, based on the mass of the monomer composition: i) one or more first monomers selected from acrylic acid, methacrylic acid, dimethylacrylamide, hydroxybutyl acrylate, hydroxypropyl acrylate and hydroxyethyl acrylate in a combined mass fraction in the range from 10%-20%, and ii) one or more second monomers selected from (meth)acrylic esters of the formula (I), CH2═CR1—C(O)O—CHR2R3 (I), where R1 is hydrogen or methyl, where either i) R2 is hydrogen and R3 is a branched alkyl group having 16-20 carbon atoms, or ii) R2 is a linear or branched alkyl group having 3-10 carbon atoms and R3 a linear or branched alkyl group having 6-10 carbon atoms, in a combined mass fraction in the range from 20%-90%.

公开(公告)号：US20170183547A1

公开(公告)日：2017-06-29

申请号：US15359908

申请日：2016-11-23

Applicant: TESA SE

Inventor： Sarah Bamberg ,  Julia BEFUSS ,  Benjamin PUETZ ,  Alexander PRENZEL

IPC: C09J133/08

CPC classification number: C09J133/08 ,  B29B7/485 ,  B29B7/487 ,  B29B7/845 ,  C08F220/18 ,  C08K5/5419 ,  C08K5/544 ,  C09J133/02 ,  C08F2220/1825 ,  C08F2220/1858 ,  C08F220/06 ,  C08F2220/1875 ,  C08F220/14 ,  C08K5/5435

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.