公开(公告)号：US11286380B2

公开(公告)日：2022-03-29

申请号：US16803702

申请日：2020-02-27

Applicant: JOHNS MANVILLE

Inventor： Lichih R Peng ,  Jordan Kortmeyer ,  Lance Wang ,  Jawed Asrar

IPC: C08L23/08 ,  E04D5/08 ,  E04D5/06 ,  C08L23/14

Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.

公开(公告)号：US11951716B2

公开(公告)日：2024-04-09

申请号：US17220657

申请日：2021-04-01

Applicant: JOHNS MANVILLE

Inventor： Diego Pedrazzoli ,  Lichih R Peng ,  Lance Wang ,  Jawed Asrar

IPC: B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B32B37/15 ,  C08L23/00 ,  C08L27/06 ,  E04D5/10

CPC classification number: B32B27/08 ,  B32B27/304 ,  B32B27/32 ,  B32B37/153 ,  C08L23/00 ,  C08L27/06 ,  E04D5/10 ,  B32B2419/06

Abstract: A roofing membrane includes a thermoplastic polyolefin (TPO) layer and a polyvinyl chloride (PVC) layer. The TPO layer forms a bottom layer of the roofing membrane, and the PVC layer is positioned atop the TPO layer so that the PVC layer forms a top layer of the roofing membrane. The TPO layer and the PVC layer are configured to be chemically compatible so that the TPO layer and the PVC layer are chemically bonded and function as a single roofing membrane. Compatibilizing includes at least one of (i) adding a compatibilizing agent to at least one of the TPO material and the PVC material prior to extrusion and (ii) positioning at least one compatibilizing film, prior to bonding, between the TPO material and the PVC material.

公开(公告)号：US08900718B2

公开(公告)日：2014-12-02

申请号：US13706065

申请日：2012-12-05

Applicant: Johns Manville

Inventor： Lichih R Peng

IPC: B32B27/08 ,  B29C47/00 ,  B32B27/00 ,  E04D5/10

CPC classification number: E04D5/10 ,  B32B27/00 ,  B32B27/32 ,  B32B2419/06 ,  E04D5/06 ,  Y10T428/31913

Abstract: Embodiments of the invention provide improved roofing membranes and methods and systems involving the same. According to one embodiment, a roofing membrane laminate is provided. The roofing membrane laminate includes a first membrane layer that includes a thermoplastic polyolefin material and a second membrane layer positioned atop the first membrane layer and bonded thereto. The second membrane layer includes a thermoplastic polyolefin material and an acrylate additive blended with the thermoplastic polyolefin material. The acrylate additive is blended with the thermoplastic polyolefin material while both materials are resins and is added so as to comprise 10% by weight or less of the blended resins. The acrylate additive includes an ethylene backbone chain and an acrylate bonded with the ethylene backbone chain.

Abstract translation: 本发明的实施方案提供改进的屋顶膜以及涉及其的方法和系统。 根据一个实施例，提供屋顶膜层压板。 屋顶膜层叠体包括第一膜层，其包括热塑性聚烯烃材料和位于第一膜层顶部并结合到其上的第二膜层。 第二膜层包括与热塑性聚烯烃材料混合的热塑性聚烯烃材料和丙烯酸酯添加剂。 丙烯酸酯添加剂与热塑性聚烯烃材料共混，而两种材料都是树脂，并且被加入以包含10重量％或更少的共混树脂。 丙烯酸酯添加剂包括乙烯主链和与乙烯主链结合的丙烯酸酯。

公开(公告)号：US11578197B2

公开(公告)日：2023-02-14

申请号：US17230316

申请日：2021-04-14

Applicant: JOHNS MANVILLE

Inventor： Lichih R Peng ,  Jordan Kortmeyer ,  Lance Wang ,  Jawed Asrar

IPC: C08L23/08 ,  E04D5/08 ,  E04D5/06 ,  C08L23/14

Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.

公开(公告)号：US10647839B2

公开(公告)日：2020-05-12

申请号：US16193797

申请日：2018-11-16

Applicant: JOHNS MANVILLE

Inventor： Lichih R Peng ,  Jordan Kortmeyer ,  Lance Wang ,  Jawed Asrar

IPC: C08L23/12 ,  C08J5/18 ,  E04D5/08 ,  E04D5/06 ,  C08L23/06 ,  B32B27/00

Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 20 to 65 weight percent of a propylene polymer having from 10-60% crystallinity, 30-60 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.

公开(公告)号：US11130854B2

公开(公告)日：2021-09-28

申请号：US16149550

申请日：2018-10-02

Applicant: JOHNS MANVILLE

Inventor： Jordan Kortmeyer ,  Lichih R Peng

IPC: C08L23/16 ,  C08K3/22 ,  C08K5/00 ,  C08L23/06 ,  C08L23/12 ,  C08L23/14 ,  E04D5/06

Abstract: Provided is a polymer blend composition comprising high density polyethylene, a propylene polymer having rubber dispersed therein, and a propylene/ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising from 20 to 55 weight percent of the high density polyethylene, from 20 to 55 weight percent of a propylene polymer having from 10-60% crystallinity, and a propylene/ethylene copolymer comprising the remainder of the composition.

公开(公告)号：US10081945B2

公开(公告)日：2018-09-25

申请号：US14157106

申请日：2014-01-16

Applicant: JOHNS MANVILLE

Inventor： Lichih R Peng ,  Zebonie Sukle ,  Jordan Kortmeyer ,  Thomas Justin Stock

IPC: E04D11/00 ,  B32B37/15 ,  E04D5/10 ,  E04D5/06

CPC classification number: E04D11/00 ,  B32B37/153 ,  B32B2419/06 ,  E04D5/06 ,  E04D5/10 ,  Y10T428/1452 ,  Y10T428/24967

Abstract: According to one embodiment, a roofing membrane laminate includes a first layer of an uncured ethylene propylene diene monomer rubber (EPDM) material and a second layer of a thermoplastic polyolefin (TPO) material coupled with the EPDM material. The EPDM material has a thickness of between about 50 mils and 70 mils and the TPO material has a thickness of between about 15 mils and 35 mils. The EPDM material and TPO material are coupled via crosslinking of the TPO and EPDM material at an interface thereof, whereby at least a top portion of the EPDM material is cured via the application of heat after the EPDM material and TPO material are placed into contact so as to effect crosslinking of the materials.