公开(公告)号：US20180086867A1

公开(公告)日：2018-03-29

申请号：US15563385

申请日：2016-03-02

Applicant: Rohm and Haas Company

Inventor： Melinda L. Einsla ,  Steven R. Patrick ,  William B. Griffith, JR. ,  Paul Nedwick

IPC: C08F220/18 ,  C09J7/02 ,  C09J133/08

Abstract: Disclosed is a method comprising: a) dispersing a first monomer mixture comprising least one least monomer, the first monomer mixture having a total glass transition temperature (Tg) in the range of from −10° C. to −65° C. with a surfactant and an initiator in an aqueous medium; b) when the first monomer mixture is completely dispersed, adding a second monomer mixture comprising at least one monomer, the second monomer mixture having a Tg at least 20° C. greater than the Tg of the first monomer mixture, to the aqueous medium; c) when the second monomer mixture is completely dispersed, adding a third monomer mixture comprising at least one monomer, the third monomer mixture having a Tg in the range of from −25° C. to 50° C.; and d) forming a polymer with the first, second, and third monomer mixtures. Also disclosed is a pressure sensitive adhesive comprising the polymer formed by this method.

公开(公告)号：US11760822B2

公开(公告)日：2023-09-19

申请号：US15563385

申请日：2016-03-02

Applicant: Rohm and Haas Company

Inventor： Melinda L. Einsla ,  Steven R. Patrick ,  William B. Griffith, Jr. ,  Paul Nedwick

IPC: C08F220/18 ,  C09J7/38 ,  C08F265/06 ,  C09J133/08 ,  C09J151/00

CPC classification number: C08F220/1804 ,  C08F265/06 ,  C09J7/385 ,  C09J133/08 ,  C09J151/00 ,  C08F2800/20 ,  C09J2301/414 ,  C09J2433/00 ,  C08F265/06 ,  C08F220/08

Abstract: Disclosed is a method comprising: a) dispersing a first monomer mixture comprising least one least monomer, the first monomer mixture having a total glass transition temperature (Tg) in the range of from −10° C. to −65° C. with a surfactant and an initiator in an aqueous medium; b) when the first monomer mixture is completely dispersed, adding a second monomer mixture comprising at least one monomer, the second monomer mixture having a Tg at least 20° C. greater than the Tg of the first monomer mixture, to the aqueous medium; c) when the second monomer mixture is completely dispersed, adding a third monomer mixture comprising at least one monomer, the third monomer mixture having a Tg in the range of from −25° C. to 50° C.; and d) forming a polymer with the first, second, and third monomer mixtures. Also disclosed is a pressure sensitive adhesive comprising the polymer formed by this method.