公开(公告)号：US20210198465A1

公开(公告)日：2021-07-01

申请号：US17202625

申请日：2021-03-16

Applicant: COOPER-STANDARD AUTOMOTIVE, INC.

Inventor： Krishnamachari GOPALAN ,  Gending JI ,  Amber TUPPER ,  Jacob James LAFOREST ,  Hwanman PARK

IPC: C08L23/26 ,  C08L23/08

Abstract: A roofing membrane includes (A) about 40 to 75 wt. % silane-crosslinked polyolefin elastomer/plastomer component including a blend of at least three different polyolefin elastomers, each having different melt mass-flow rate (MFR), measured at 190° C. under a 2.16 kg load, in a range of about 3.0 to 25.0 g/10 min, (E) about 1 to 20 wt. % functional filler(s) including a polyolefin; (F) UV/heat stabilizer(s); (G) antioxidant(s); and (H) fire retardant(s), wt. % based on the total weight of the roofing membrane.

公开(公告)号：US20210388617A1

公开(公告)日：2021-12-16

申请号：US17349368

申请日：2021-06-16

Applicant: COOPER-STANDARD AUTOMOTIVE, INC.

Inventor： Krishnamachari GOPALAN ,  Robert J. LENHART ,  Gending JI ,  Jacob La FOREST

IPC: E04D5/10 ,  C08K3/26 ,  C08F210/16 ,  C08L51/00

Abstract: A roofing accessory is disclosed includes an elastomeric layer including non-crosslinked elastomeric material having a composition including: (A) 100 PHR of a base polymer including ethylene propylene diene monomer (EPDM) having a sum of ethylidene norbornene (ENB) content, vinyl norbornene (VNB) content, norbornadiene content, and 1,4 hexadiene content and/or dicyclopentadiene (DCPD) content from about 0 to 9 wt. %, (B) about 50 to 300 PHR of calcium carbonate; and (C) about 50 to 200 PHR of a dewaxed heavy paraffinic process oil(s). The accessory may further include a butyl-based layer adjacent to the elastomeric layer. The accessory may also include a protective layer configured as a liner, the protective layer arranged adjacent to the butyl-based layer such that the butyl-based layer is sandwiched between the first and protective layers. The accessory may have elongation at break of up to about 1800%.