Patent · US Active

Adhesive and damping film

US10982116B2 · kind B2 · utility

0Cited by

5References

20Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Richard Y. Liu · Woodbury, US
Roger A. Grisle · Woodbury, US
Benjamin J. Bending · Madison, US
Nathaniel I. Lehn · White Bear Lake, US

Key dates

Filing date	Apr 24, 2017
Grant date	Apr 20, 2021
Priority date	—
Expiry date	Jun 18, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J2467/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Adhesives including a polyester at 20 to 50 weight percent, a first tackifier at 30 to 60 weight percent, and a first olefin-styrene block copolymer at 5 to 30 weight percent are described. The polyester has a glass transition temperature between −40° C. and −10° C., and the adhesive has a heat activation temperature between 20° C. and 100° C. Damping films including at least one layer of the adhesive and including a foamed layer are described. The foamed layer includes a second olefin-styrene block copolymer at 30 to 80 weight percent and a second tackifier at 15 to 60 weight percent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.