公开(公告)号：US20220389285A1

公开(公告)日：2022-12-08

申请号：US17773685

申请日：2020-11-03

Applicant: TESA SE

Inventor： Thilo DOLLASE ,  Michael EGGER ,  Aranzazu ESCUDERO VALLEJO ,  Jessika GARGIULO

IPC: C09J7/38 ,  C09J11/08 ,  C09J9/00 ,  C09J109/06

Abstract: The present invention relates to a foamed pressure-sensitive adhesive compound on the basis of aromatic polyvinyl-polydiene block copolymers, in particular for double-sided self-adhesive strips, containing a) 39.8 wt. % to 51.8 wt. % of an elastomer component, b) 35.0 wt. % to 58.0 wt % of an adhesive resin component, c) 2.0 wt. % to 15.0 wt. % of a plasticizer component, d) 0.0 wt. % to 18.0 wt. % of further additives and e) microballoons, the microballoons being at least partly expanded.

公开(公告)号：US20220380641A1

公开(公告)日：2022-12-01

申请号：US17773680

申请日：2020-11-03

Applicant: TESA SE

Inventor： Thilo DOLLASE ,  Michael EGGER ,  Aranzazu ESCUDERO VALLEJO ,  Jessika GARGIULO

IPC: C09J153/02 ,  C09J7/38 ,  C09J193/04 ,  C08J9/32

Abstract: The invention relates to a foamed adhesive mass layer comprising a) 41.7 to 62.0 wt. % of an elastomer component, b) 37.7 to 58.0 wt. % of an adhesive resin component, c) 0 to 15 wt. % of a soft resin component, d) 0 to 18 wt. % further additives, and e) microballoons with a proportion of preferably 0.3 to 2.5 wt. %, preferably 0.5 to 2.0 wt. % and particularly preferably 0.7 to 1.7 wt. %, wherein the microballoons are at least partially expanded, wherein the elastomer component (a) consists of up to at least 90 wt. % polyvinyl aromatic compound polydine block copolymer, wherein the adhesive resin component (b) contains up to 4 to 100 wt. % of at least one type K1 if a rosin oligomer with a softening temperature (Ring & Ball, Test VI) of at least 90° C., and wherein the density (Text IX) of the foamed adhesive mass layer is at least 600 kg/m3 and max. 920 kg/m3.