公开(公告)号：US20240263052A1

公开(公告)日：2024-08-08

申请号：US18289963

申请日：2022-05-10

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Lidia Jasinska-Walc ,  Robbert Duchateau ,  Miloud Bouyahyi ,  Nydia Badillo Sampedro ,  Jakub Kruszynski ,  Jana Hrachová ,  Yingxin Liu ,  Lanti Yang

IPC: C09J123/14 ,  C09J5/06 ,  C09J123/26

CPC classification number: C09J123/147 ,  C09J5/06 ,  C09J123/26 ,  C09J2423/10

Abstract: Hot melt adhesive including a polar group-containing olefin copolymer has: number average molecular weight (Mn) between 10 to 50 kg/mol, crystallinity (Xc) content below 30%, enthalpy (ΔH) between 5 to 65 J/g, polydispersity index (PDI) from 2 to 6, melting temperature (Tm) between 40 and 120° C., and including at least 80 mol % of a constituent unit of formula (1), optionally a constituent unit of formula (2), and between 0.1 to 1 mol %, of a constituent unit of formula (3):






wherein R1 is H or CH3; R2 is a hydrocarbyl group having 0 to 10 carbon atoms; R3 is a hydrocarbyl group having 2 to 10 carbon atoms, when X is hydroxyl functionality or a hydrocarbyl group having 0 to 10 carbon atoms, when X is polar organic group containing at least one carboxylic acid functionality and 0 to 6 carbon atoms.