公开(公告)号：US12168703B2

公开(公告)日：2024-12-17

申请号：US18198098

申请日：2023-05-16

Applicant: SWIMC LLC

Inventor： Joseph D. Desousa ,  Arthur Riazzi ,  Benjamin J. Webster ,  Robert M. O′Brien ,  Kailas B. Sawant ,  Richard H. Evans ,  Sebastien Gibanel

IPC: C08F2/28 ,  C08F2/22 ,  C08F8/44 ,  C09D5/02 ,  C09D133/12 ,  C09D151/00

Abstract: Water-dispersible or water-dispersed polymers are made by reacting (i) an unsaturated monomer containing one or more cyclic carbonate groups, or (ii) an unsaturated or saturated oligomer or polymer containing a plurality of cyclic carbonate groups, with a tertiary amine in the presence of an acid, or with an acid in the presence of a tertiary amine, or in the presence of an acid and a tertiary amine, to provide a water-dispersible or water-dispersed monomer, oligomer or polymer. When step a) provides a monomer or oligomer, the monomer or oligomer is reacted with one or more monomers in the presence of an initiator to provide a water-dispersible or water-dispersed polymer. When step a) provides a polymer, the polymer is optionally used to support emulsion polymerization of one or more unsaturated monomers in the presence of an initiator to provide a water-dispersible or water-dispersed further polymer.

公开(公告)号：US11981822B2

公开(公告)日：2024-05-14

申请号：US17978854

申请日：2022-11-01

Applicant: SWIMC LLC

Inventor： Joseph D. Desousa ,  Sebastien Gibanel ,  Benjamin J. Webster ,  Kailas B. Sawant ,  Benoit Prouvost

IPC: C09D109/10 ,  B05D1/02 ,  B05D3/00 ,  B05D7/14 ,  B05D7/22 ,  B65D1/16 ,  B65D25/14 ,  C09D5/02 ,  C09D7/65

CPC classification number: C09D109/10 ,  B05D1/02 ,  B05D3/007 ,  B05D7/14 ,  B65D1/165 ,  B65D25/14 ,  C09D5/022 ,  C09D7/65 ,  B05D7/227 ,  B05D2252/02 ,  B05D2701/00 ,  Y10T428/13 ,  Y10T428/1352 ,  Y10T428/1355 ,  Y10T428/139 ,  Y10T428/1397

Abstract: A method of forming a coating on a food or beverage container, which includes spraying a coating composition onto an interior surface of the food or beverage container, where the coating composition includes a latex copolymer and a metal drier or crosslinking agent. The latex copolymer is a reaction product of monomers that include (a) one or more styrene-mimicking monomers containing one or more cyclic groups and one or more ethylenically-unsaturated groups, at least a portion of such styrene-mimicking monomers being polycyclic monomers containing ring unsaturation, and (b) one or more other ethylenically-unsaturated monomers. Preferably, the coating composition is substantially free of each of BPA, PVC, other halogenated monomers, and optionally styrene. The method may also include curing the sprayed coating composition, thereby providing the coating on the interior surface of the food or beverage container.

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.