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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12780959 B1

PDFFull Text
Date of Patent:
Nov. 03, 2026

Filed:

Jun. 23, 2021

Olefin/siloxane interpolymers and olefin/cyclic silane interpolymers

Applicants:

Dow Global Technologies Llc, Midland, MI (US);

Dow Silicones Corporation, Midland, MI (US);

Rohm and Haas Company, Collegeville, PA (US);

Inventors:

Liam P. Spencer, Lake Jackson, TX (US);

Zachary S. Kean, Bay City, MI (US);

David D. Devore, Midland, MI (US);

Jordan C. Reddel, Midland, MI (US);

Bethany M. Neilson, Manvel, TX (US);

Matthew Olsen, Wilmington, DE (US);

Zhanjie Li, Midland, MI (US);

Phillip D. Hustad, Houston, TX (US);

Assignees:

Dow Global Technologies LLC, Midland, MI (US);

Dow Silicones Corporation, Midland, MI (US);

Rohm and Haas Company, Collegeville, PA (US);

Attorney:
Primary Examiner:

Kumar R Bhushan

Int. Cl.
CPC ...
C08F 8/42 (2006.01); C08F 4/659 (2006.01); C08F 210/02 (2006.01); C08F 230/08 (2006.01); C08G 77/442 (2006.01);
U.S. Cl.
CPC ...
C08F 8/42 (2013.01); C08F 4/65912 (2013.01); C08F 210/02 (2013.01); C08F 230/08 (2013.01); C08G 77/442 (2013.01); C08F 2420/02 (2013.01);
Abstract

An interpolymer, which comprises at least one siloxane group, and prepared by polymerizing a mixture comprising one or more 'addition polymerizable monomers' and at least one siloxane monomer, in the presence of a catalyst system comprising a Group 3-10 metal complex, and the siloxane monomer is selected from the following Formula 1: A-Si(B)(C)(H)—O—(Si(D)(E) (H)—O)—Si(F)(G)(H), described herein. An ethylene/siloxane interpolymer comprising at least one chemical unit of Structure 1, or at least one chemical unit of Structure 2, each described herein. A process to form an interpolymer, which comprises, in polymerized form, at least one siloxane monomer, or at least one silane monomer without a siloxane linkage, said process comprising polymerizing a mixture comprising one or more “addition polymerizable monomers” and at least one monomer of Formula 4, described herein, in the presence of a catalyst system comprising a metal complex from Formula A or Formula B, each described herein.

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Spencer, Liam. (2026). Olefin/siloxane interpolymers and olefin/cyclic silane interpolymers (U.S. Patent No. 12780959). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12780959

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