公开(公告)号：US20190256677A1

公开(公告)日：2019-08-22

申请号：US16308642

申请日：2017-06-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Joshua M. Fishman ,  Caitlin E. Meree ,  Ning Zhou ,  Derek J. Dehn ,  Jacob D. Young ,  Jeffrey O. Emslander ,  Bradley L. Givot ,  Aaron T. Hedegaard ,  Justin M. Bolton ,  Terry R. Hobbs ,  Mahfuza B. Ali ,  Robert C. Coffin ,  Brant U. Kolb ,  Paul D. Pennington ,  Jimmie R. Baran, Jr. ,  Duane D. Fansler ,  Ying Lin

IPC: C08J9/00 ,  C08L67/04 ,  C08L29/14 ,  C08J5/18 ,  C08J9/10 ,  A61F11/08 ,  A61F11/14 ,  G10K11/16

Abstract: Foam compositions are provided including a polylactic acid polymer; second (e.g., polyvinyl acetate) polymer having a glass transition temperature (Tg) of at least 25° C.; and plasticizer. Also described are articles comprising the foam compositions, such as a sheet or hearing protection article. Methods of making and using the foam compositions are further described herein.