公开(公告)号：US11466162B2

公开(公告)日：2022-10-11

申请号：US16805602

申请日：2020-02-28

Applicant: SWIMC LLC

Inventor： Robert M. O'Brien ,  Mark Stuetelberg ,  Joseph D. Desousa ,  Mary Jo Scandolari ,  Nikolaus Koch ,  Stephen Pollin ,  Nusrah Hussain

IPC: C09D5/02 ,  C09D151/00 ,  C08F220/12 ,  C08F265/06 ,  B65D25/14 ,  C08F220/06 ,  C08F220/14

Abstract: An aqueous coating composition is provided that is useful in coating a variety of substrates, including interior or exterior portions of food or beverage cans. The coating composition includes a resin system that includes a multi-stage latex. In some embodiments, the multi-stage latex is formed using a process that includes emulsion polymerizing two or more stages in the presence of an aqueous dispersion including a water-dispersible polymer. In certain preferred embodiments, the water-dispersible polymer is a polyether polymer.

公开(公告)号：US12234379B2

公开(公告)日：2025-02-25

申请号：US17882332

申请日：2022-08-05

Applicant: SWIMC LLC

Inventor： Robert M. O'Brien ,  Mark Stuetelberg ,  Joseph D. Desousa ,  Mary Jo Scandolari ,  Nikolaus Koch ,  Stephen Pollin ,  Nusrah Hussain

IPC: C09D5/02 ,  C08F220/06 ,  C08F220/14 ,  C08F265/06 ,  C09D151/00

Abstract: An aqueous coating composition is provided that is useful in coating a variety of substrates, including interior or exterior portions of food or beverage cans. The coating composition includes a resin system that includes a multi-stage latex. In some embodiments, the multi-stage latex is formed using a process that includes emulsion polymerizing two or more stages in the presence of an aqueous dispersion including a water-dispersible polymer. In certain preferred embodiments, the water-dispersible polymer is a polyether polymer.

公开(公告)号：US12006380B2

公开(公告)日：2024-06-11

申请号：US17882330

申请日：2022-08-05

Applicant: SWIMC LLC

Inventor： Robert M. O'Brien ,  Mark Stuetelberg ,  Joseph D. Desousa ,  Mary Jo Scandolari ,  Nikolaus Koch ,  Stephen Pollin ,  Nusrah Hussain

IPC: C08F2/00 ,  B65D25/14 ,  C09D5/02 ,  C09D7/40 ,  C09D133/12 ,  C09D133/26

CPC classification number: C08F2/001 ,  B65D25/14 ,  C09D5/024 ,  C09D7/40 ,  C09D133/12 ,  C09D133/26 ,  C08F285/00 ,  C08F220/1804 ,  C08F220/1802 ,  C08F220/1804 ,  C08F220/06 ,  C08F220/1802 ,  C08F220/1804 ,  C08F220/1802 ,  C08F220/06 ,  C08F220/1802 ,  C08F220/1804 ,  C08F220/14

Abstract: An aqueous coating composition useful in coating a variety of substrates, including interior or exterior portions of food or beverage cans. The coating composition includes a multi-stage polymeric latex having two or more emulsion polymerized stages in an aqueous carrier liquid, wherein the latex has one or both of:



(i) a lower glass transition temperature (Tg) emulsion polymerized stage having a calculated Tg that is at least 20° C. lower than a calculated Tg of a higher Tg emulsion polymerized stage, or
(ii) a gradient Tg with at least a 20° C. differential in the calculated Tg of monomers fed at the start of polymerization compared to monomers fed at the end of polymerization.




When spray-applied on the interior of a food or beverage can, the composition exhibits a global extraction result of less than 50 ppm and a metal exposure value of less than 3 mA.

公开(公告)号：US11427654B2

公开(公告)日：2022-08-30

申请号：US16805579

申请日：2020-02-28

Applicant: SWIMC LLC

Inventor： Robert M. O'Brien ,  Mark Stuetelberg ,  Joseph D. Desousa ,  Mary Jo Scandolari ,  Nikolaus Koch ,  Stephen Pollin ,  Nusrah Hussain

IPC: B65D25/14 ,  C09D133/12 ,  C09D5/02 ,  C09D7/40 ,  C08F2/00 ,  C09D133/26

Abstract: An aqueous coating composition useful in coating a variety of substrates, including interior or exterior portions of food or beverage cans. The coating composition includes a multi-stage polymeric latex having two or more emulsion polymerized stages in an aqueous carrier liquid, wherein the latex has one or both of: (i) a lower glass transition temperature (Tg) emulsion polymerized stage having a calculated Tg that is at least 20° C. lower than a calculated Tg of a higher Tg emulsion polymerized stage, or (ii) a gradient Tg with at least a 20° C. differential in the calculated Tg of monomers fed at the start of polymerization compared to monomers fed at the end of polymerization. When spray-applied on the interior of a food or beverage can, the composition exhibits a global extraction result of less than 50 ppm and a metal exposure value of less than 3 mA.