US Patent Application 18449942. Compositions and Foam Compositions Containing Composite Particles, Articles, Composite Particles, and Methods simplified abstract

Compositions and Foam Compositions Containing Composite Particles, Articles, Composite Particles, and Methods

Organization Name

3M INNOVATIVE PROPERTIES COMPANY

Inventor(s)

Joshua M. Fishman of Minneapolis MN (US)

Jeffrey P. Kalish of St. Paul MN (US)

Caitlin E. Meree of St. Paul MN (US)

Qin Lin of Woodbury MN (US)

Nicholas K. Lee of Minneapolis MN (US)

Li Yao of Woodbury MN (US)

Rajdeep S. Kalgutkar of Woodbury MN (US)

Duy K. Lehuu of Lake Elmo MN (US)

David T. Amos of St. Paul MN (US)

Compositions and Foam Compositions Containing Composite Particles, Articles, Composite Particles, and Methods - A simplified explanation of the abstract

This abstract first appeared for US patent application 18449942 titled 'Compositions and Foam Compositions Containing Composite Particles, Articles, Composite Particles, and Methods

Simplified Explanation

- The patent application describes compositions that consist of a thermoplastic nitrogen-containing matrix material and composite particles distributed within the matrix material. - The composite particles contain a chemical blowing agent particle that is encapsulated within a shell made of an uncrosslinked thermoplastic material. - The uncrosslinked thermoplastic material has a certain minimum complex viscosity at the decomposition temperature of the chemical blowing agent particle. - The patent application also describes foam compositions and articles made from these compositions, such as sheets or multilayer constructions. - The patent application further provides methods for making the foam compositions. - Additionally, the patent application mentions the use of these compositions in polishing pads, polishing systems, and methods of polishing substrates.

Original Abstract Submitted

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 articles 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.