公开(公告)号：US20240207795A1

公开(公告)日：2024-06-27

申请号：US18287947

申请日：2022-03-22

Applicant: Dow Global Technologies LLC

Inventor： Jillian A. Emerson ,  Scott T. Matteucci ,  Brian R. Dorvel ,  Vikram Prasad ,  Manesh Nadupparambil Sekharan ,  Christopher J. Tucker ,  Craig F. Gorin ,  Amira A. Marine

IPC: B01F21/00 ,  B32B43/00

CPC classification number: B01F21/402 ,  B32B43/006

Abstract: An aqueous solvent composition (or separation fluid composition) including an aqueous mixture of (a) a solvent and (b) water for swelling, degrading, and/or fully dissolving adhesives; wherein the molecular weight of the solvent in the aqueous mixture is less than 1,000 g/mol; wherein the Hansen Solubility parameters of the solvent are in the following ranges: (i) a dispersive component from 15 MPa1/2 to 21 MPa1/2; (ii) a polar component from 3 MPa1/2 to 10.5 MPa1/2; and (iii) a hydrogen bonding component from 2 MPa1/2 to 18 MPa1/2; wherein the solvent contains at least one aromatic group; wherein the solvent contains at least one hetero-atom; and wherein the adhesive at least swells to more than 50% by weight when soaked in the aqueous mixture; a process for treating an adhesive to swell, degrade, and/or fully dissolve the adhesive using the above aqueous mixture; a process for delaminating a multilayer packaging, a multilayer film or a multilayer article containing an adhesive using the above aqueous mixture; a process for recycling a multilayer packaging, a multilayer film or a multilayer article containing an adhesive using the above aqueous mixture; and a recycled packaging, film or article prepared by the above recycling process.

公开(公告)号：US20230399480A1

公开(公告)日：2023-12-14

申请号：US18034562

申请日：2021-10-29

Applicant: Dow Global Technologies LLC

Inventor： Brian R. Dorvel ,  Andrew T. Heitsch ,  Anson Sze Tat Wong ,  Stéphane Costeux ,  John O. Osby ,  Jian Yang

IPC: C08J9/00 ,  C08J9/12 ,  C08L23/06 ,  C08G77/42

CPC classification number: C08J9/0061 ,  C08J9/122 ,  C08L23/06 ,  C08G77/42 ,  C08J2323/06 ,  C08J2323/26 ,  C08J2383/10 ,  C08L2207/066 ,  C08J2203/06 ,  C08G2101/00

Abstract: According to various embodiments, a microcellular foam is provided, wherein the microcellular foam comprises a polymer blend, the polymer blend comprising: from 70 to 95% by weight low density polyethylene (LDPE); and from 5 to 30% by weight of polydimethylsiloxane grafted LDPE (PDMS-g-LDPE), wherein the microcellular foam has an average cell size of less than 60 μm.