公开(公告)号：US10577494B2

公开(公告)日：2020-03-03

申请号：US15528791

申请日：2015-12-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ning Zhou ,  Robert S. Clough ,  Derek J. Dehn ,  Jeffrey P. Kalish ,  William W. Merrill ,  Kevin M. Lewandowski ,  Jayant Chakravarty

IPC: C08L31/04 ,  C08L67/04 ,  C09J7/25 ,  C08K5/103 ,  C08K5/11 ,  C09J7/24 ,  B32B7/12 ,  B32B27/30 ,  C08J5/18 ,  B32B27/18 ,  B32B7/04 ,  B32B27/22 ,  B32B27/08 ,  B32B27/36 ,  C08K5/09 ,  C09J7/20 ,  C08K5/10 ,  C08K5/098 ,  C08K3/01 ,  C08K5/00 ,  C09J133/26

Abstract: A composition is described comprising semicrystalline polylactic acid polymer; polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25 C; plasticizer; and optionally amorphous polylactic acid polymer. In another embodiment the composition further comprises nucleating agent. Also described are films comprising the composition as well as articles, such as a tape or sheet, comprising the film described herein and a layer of pressure sensitive adhesive disposed on the film.

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.