公开(公告)号：US20240247171A1

公开(公告)日：2024-07-25

申请号：US18289537

申请日：2022-05-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Roman Konietzny ,  Pierre R. Bieber ,  Achim Boehme ,  Stijn A.M. D'Hollander ,  Maja Giese ,  René Kuhlmann ,  Thomas Hannen

IPC: C09J7/10 ,  C09J7/38 ,  C09J11/04

CPC classification number: C09J7/10 ,  C09J7/385 ,  C09J11/04 ,  C09J2203/326 ,  C09J2203/346 ,  C09J2203/354 ,  C09J2301/208 ,  C09J2301/302 ,  C09J2400/24 ,  C09J2433/00

Abstract: A multilayer pressure-sensitive adhesive foam tape that includes: a pressure-sensitive adhesive polymeric foam layer having a first major surface and a second major surface, wherein the polymeric foam comprises: a poly(meth)acrylate derived from a (meth)acrylate-based (co)polymer component having a weight-average molecular weight (Mw) no greater than 500,000 g/mol and comprising at least one reactive functional group (X); and an optional additive selected from the group consisting of a density-reducing solid filler, a tackifier, a VOC scavenger, an odor absorber (particularly, activated carbon), a stabilizer, a rheological modifier, a thixotropic compound, and a combination thereof; a first pressure-sensitive adhesive skin layer adjacent the first major surface of the foam layer; and a second pressure-sensitive adhesive skin layer adjacent the second major surface of the foam layer.

公开(公告)号：US20240409790A1

公开(公告)日：2024-12-12

申请号：US18699456

申请日：2022-10-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Roman Konietzny ,  Pierre R. Bieber ,  René Kuhlmann ,  Thomas Apeldorn ,  Achim Boehme ,  Michael Kempf ,  Stijn A.M. D'Hollander

IPC: C09J7/38 ,  C09J7/26

Abstract: The multilayer pressure sensitive adhesive assembly includes a polymeric foam layer and a first pressure sensitive adhesive layer. The polymeric foam includes a plurality of activated carbon particles. The first pressure sensitive adhesive layer includes a multi-arm block copolymer in an amount greater than 20 percent by weight, based on the weight of the first pressure sensitive adhesive layer, and at least one hydrocarbon tackifier. The multi-arm block copolymer has formula Qn-Y, in which Q represents an arm of the multi-arm block copolymer, each arm independently having the formula G-R, n represents the number of arms and is at least 3, and Y is the residue of a multifunctional coupling agent. Each R is independently a rubbery block including a polymerized conjugated diene, a hydrogenated derivative of a polymerized conjugated diene, or combinations thereof, and each G is a glassy block including a polymerized monovinyl aromatic monomer.