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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 11767406 B1

PDFFull Text
Date of Patent:
Sep. 26, 2023

Filed:

Jun. 09, 2020

Compositions and foam compositions containing composite particles, articles, composite particles, and methods

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Joshua M. Fishman, Minneapolis, MN (US);

Jeffrey P. Kalish, St. Paul, MN (US);

Caitlin E. Meree, St. Paul, MN (US);

Qin Lin, Woodbury, MN (US);

Nicholas K. Lee, Minneapolis, MN (US);

Li Yao, Woodbury, MN (US);

Rajdeep S. Kalgutkar, Woodbury, MN (US);

Duy K. Lehuu, Lake Elmo, MN (US);

David T. Amos, St. Paul, MN (US);

Assignee:

3M Innovative Properties Company, St. Paul, MN (US);

Attorney:

Adrian L. Pishko

Primary Examiner:

Hai Vo

Int. Cl.
CPC ...
C08J 9/00 (2006.01); B24B 37/24 (2012.01); B32B 5/20 (2006.01); B32B 27/06 (2006.01); B32B 27/40 (2006.01); C08J 9/10 (2006.01); C08L 23/08 (2006.01); C08L 3/04 (2006.01); C08L 53/02 (2006.01); C08L 75/06 (2006.01); C08L 75/08 (2006.01); C08L 79/00 (2006.01); C08L 31/04 (2006.01);
U.S. Cl.
CPC ...
C08J 9/0061 (2013.01); B24B 37/24 (2013.01); B32B 5/20 (2013.01); B32B 27/065 (2013.01); B32B 27/40 (2013.01); C08J 9/103 (2013.01); C08J 9/106 (2013.01); C08J 9/108 (2013.01); C08L 23/0853 (2013.01); C08L 31/04 (2013.01); C08L 53/02 (2013.01); C08L 75/06 (2013.01); C08L 75/08 (2013.01); C08L 79/00 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2250/40 (2013.01); B32B 2266/0278 (2013.01); B32B 2266/08 (2013.01); B32B 2274/00 (2013.01); C08J 2201/03 (2013.01); C08J 2203/04 (2013.01); C08J 2205/044 (2013.01); C08J 2205/052 (2013.01); C08J 2323/08 (2013.01); C08J 2331/04 (2013.01); C08J 2353/02 (2013.01); C08J 2375/06 (2013.01); C08J 2375/08 (2013.01); C08J 2377/00 (2013.01); C08L 2203/14 (2013.01); C08L 2312/00 (2013.01);
Abstract

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and particles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.

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