公开(公告)号：US20210371671A1

公开(公告)日：2021-12-02

申请号：US16917029

申请日：2020-06-30

Applicant: BEHR PROCESS CORPORATION

Inventor： Jigui LI ,  Christopher ZIEHM ,  Ryan HICKEN ,  Ming-Ren TARNG

IPC: C09D5/02 ,  C08F220/14 ,  C08L33/12 ,  C09D5/00 ,  C09D133/12

Abstract: A method for forming an emulsion polymer includes a step of forming a pre-emulsion by combining a monomer composition with a siloxane-containing composition in water and polymerizing the pre-emulsion by combining the pre-emulsion with a radical initiator in a reactor to form a reaction mixture. Characteristically, the monomer composition includes one or more monomers selected from the group consisting of (meth)acrylic acid monomers, (meth)acrylic monomers, styrene monomers, vinyl acetate monomers, vinyl ester monomers, and combinations thereof. A paint composition that includes the emulsion polymer is also provided. This invention describes a method to provide excellent burnish and mar resistance while avoiding problems with film appearance that can result from siloxane addition.

公开(公告)号：US20220002558A1

公开(公告)日：2022-01-06

申请号：US16919686

申请日：2020-07-02

Applicant: BEHR PROCESS CORPORATION

Inventor： Jigui LI ,  Christopher ZIEHM ,  Ryan HICKEN

IPC: C09D5/00 ,  C08F220/18 ,  C09D133/08 ,  C08F220/34 ,  C09D133/14 ,  C08F220/14 ,  C09D133/12

Abstract: A method for forming a benzophenone-containing emulsion is provided. The method includes a step of forming a pre-emulsion by combining a monomer composition with a benzophenone or a benzophenone derivative in water, the monomer composition including one or more monomers selected from the group consisting of (meth)acrylic acid monomers and (meth)acrylic monomers, vinyl acetate, aromatic monomers, vinyl neodecanoate, and combinations thereof. The pre-emulsion is polymerized by combining the pre-emulsion with a radical initiator in a reactor to form a reaction mixture that polymerizes to form an emulsion polymer. This procedure implements novel and easily polymerizable benzophenone (meth)acrylates) into the polymer backbone preventing them from leaching out of finished coatings. Advantageously, the benzophenone-containing emulsions can be used to form paint coatings with dirt pick-up resistance while maintaining the excellent flexibility of paint finishes to limit cracking of the final film.

公开(公告)号：US20210371694A1

公开(公告)日：2021-12-02

申请号：US16885623

申请日：2020-05-28

Applicant: BEHR PROCESS CORPORATION

Inventor： Jigui LI ,  Christopher ZIEHM ,  Ryan HICKEN ,  Ming-Ren TARNG

IPC: C09D133/12 ,  C09D5/14

Abstract: A method for forming an emulsion polymer includes a step of forming a pre-emulsion by combining a monomer composition with a siloxane-containing composition in water and polymerizing the pre-emulsion by combining the pre-emulsion with a radical initiator in a reactor to form a reaction mixture. Characteristically, the monomer composition includes one or more monomers selected from the group consisting of (meth)acrylic acid monomers, (meth)acrylic monomers, styrene monomers, vinyl acetate monomers, vinyl ester monomers, and combinations thereof. A paint composition that includes the emulsion polymer is also provided. This invention describes a method to provide excellent burnish and mar resistance while avoiding problems with film appearance that can result from siloxane addition.