公开(公告)号：US20240002563A1

公开(公告)日：2024-01-04

申请号：US18344988

申请日：2023-06-30

Applicant: Kraton Corporation

Inventor： Jason Tian ,  Ruidong Ding ,  Vijay Mhetar ,  Chad Reiter ,  Donna Rucker

IPC: C08F212/36 ,  C08L25/18

CPC classification number: C08F212/36 ,  C08L25/18 ,  C08L2203/16 ,  C08L2203/20

Abstract: The disclosure relates to a curable polymer composition comprising (i) a copolymer of a diisoalkenylarene (DIAEA) and a divinylarene (DVA), and (ii) at least one anti-scorching agent. The copolymer has a solubility in a hydrocarbon solvent at 25° C. for a period of less than 4 hours of at least 10 wt. %, a glass transition temperature (Tg) of 50 to 300° C., and a Gel Content of less than 5 wt. %. The curable polymer composition is cured at a temperature of greater than 140° C. to obtain a cured polymer composition having a Gel Content in a hydrocarbon solvent of >90%, and low Dk and Df values. The curable polymer composition does not cross-link or has minimal premature cross-linking in steps such as processing, storage, etc., and can be used in copper clad lamination applications.

公开(公告)号：US20240067810A1

公开(公告)日：2024-02-29

申请号：US18468830

申请日：2023-09-18

Applicant: Kraton Corporation

Inventor： Jason Tian ,  Ruidong Ding ,  Vijay Mhetar

IPC: C08L25/16 ,  C08J5/18 ,  C08K9/06

CPC classification number: C08L25/16 ,  C08J5/18 ,  C08K9/06 ,  C08J2325/18 ,  C08J2353/02 ,  C08K2201/005 ,  C08K2201/011 ,  C08L2203/16

Abstract: This disclosure relates to a film layer for use in flexible metal clad laminates. The film layer comprises a thermosetting composition comprising: a copolymer of (a) a diisoalkenylarene (DIAEA) and (b) a divinylarene (DVA) containing a mixture of m-divinylarene and p-divinylarene, in a mole ratio of (a) to (b) of 15:1 to 1:15; a second polymer; a filler and optional additives. Flexible metal clad laminates made with the film further comprises a metal foil bonded to the surface of the film. The thermosetting composition containing the DIAEA-DVA copolymer provides improved thermal stability at high temperature, excellent processability, and electrical properties, e.g., Dk and Df.

公开(公告)号：US20230279173A1

公开(公告)日：2023-09-07

申请号：US18177166

申请日：2023-03-02

Applicant: Kraton Corporation

Inventor： Jason Tian ,  Vijay Mhetar ,  Ruidong Ding

IPC: C08F293/00 ,  C08L23/06

CPC classification number: C08F293/00 ,  C08L23/06 ,  C08L2205/03 ,  C08L2207/20

Abstract: A multi-block polyolefin copolymer (MBPC) is disclosed comprising: i) a combination of a semicrystalline polymer block and an amorphous polymer block, or ii) at least two amorphous polymer blocks, or iii) at least two semicrystalline polymer blocks. The semicrystalline polymer blocks A and C are independently derived from 1,3-butadiene monomer with 80 to 97 wt. % of 1,4 addition, based on weight of the polymerized 1,3-butadiene monomer in each block A and C. The amorphous polymer block B is derived from at least one monomer selected from isoprene monomer, 1,3-butadiene monomer with 21 to 85 wt. % incorporation by 1,2 addition, and mixtures thereof. The MBPC can be used as a compatibilizer for compatibilization of blends of two or more polyolefins different from each other. Such polyolefin blends provide improved mechanical properties and processability for producing various articles.

公开(公告)号：US20240002564A1

公开(公告)日：2024-01-04

申请号：US18468814

申请日：2023-09-18

Applicant: Kraton Corporation

Inventor： Jason Tian ,  Ruidong Ding ,  Vijay Mhetar

IPC: C08F212/36 ,  C08J5/24 ,  B32B15/082 ,  B32B15/20

CPC classification number: C08F212/36 ,  C08J5/246 ,  B32B15/082 ,  B32B2457/08 ,  B32B2311/12 ,  B32B2307/308 ,  B32B15/20

Abstract: The disclosure relates to a thermosetting composition comprising a copolymer of (a) a diisoalkenylarene (DIAEA), and (b) a divinylarene (DVA) comprising m-DVB, p-DVB, m-EVB, p-EVB, and mixtures thereof. A mole ratio of DIAEA to DVA is from 15:1 to 1:15. The thermosetting composition after curing at a temperature of ≥120° C. is characterized as having: a Gel Content of >90%, a Dk of

公开(公告)号：US20230312849A1

公开(公告)日：2023-10-05

申请号：US18191102

申请日：2023-03-28

Applicant: Kraton Corporation

Inventor： Vijay MHETAR ,  Ruidong Ding ,  Jason Tian ,  Roger Tocchetto ,  Jiaqi Yan ,  Robert Bening ,  Sandesh Deshmukh

IPC: C08J5/22 ,  C08F297/04 ,  B01J41/04 ,  B01J41/14 ,  B01J47/12 ,  B01D69/02 ,  B01D71/28 ,  B01D71/30 ,  B01D71/80

CPC classification number: C08J5/2287 ,  C08F297/04 ,  B01J41/04 ,  B01J41/14 ,  B01J47/12 ,  B01D69/02 ,  B01D71/281 ,  B01D71/30 ,  B01D71/80 ,  C08F2810/50 ,  C08J2353/02 ,  B01D2325/42 ,  C25B13/08

Abstract: The disclosure relates to a hydrogenated styrene-based multiblock copolymer composition, having selectively quaternized midblock, for forming anion-exchange membranes (AEMs). The quaternized hydrogenated styrene-based multiblock copolymer is characterized as having a high glass transition temperature from the hydrophobic end-blocks, low vinyl (rubber) content, and quaternized mid-block. AEMs made from the composition have improved thermal and dimensional stability in electrolyzer operations.