公开(公告)号：US20150314511A1

公开(公告)日：2015-11-05

申请号：US14649749

申请日：2013-12-23

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Aleksandar Stoiljkovic ,  Stefan Ultsch ,  Xiaosong Wu

IPC: B29C47/40 ,  B29C47/00 ,  B29C47/10

CPC classification number: B29C47/402 ,  B29B7/48 ,  B29B7/88 ,  B29C47/0004 ,  B29C47/0019 ,  B29C47/1027 ,  B29C47/40 ,  B29K2023/08 ,  B29K2023/12 ,  B29K2105/0026 ,  B29K2105/0085 ,  B29L2031/108 ,  E04D5/06

Abstract: The present disclosure is directed to a process for producing thermoplastic polyolefin roofing membrane. The process includes directly adding components of a high-load flame retardant TPO formulation to a counter-rotating twin screw extruder. The process includes extruding the formulation with counter-rotation of the twin screws and forming a TPO roofing membrane having a tensile strength of greater than 10 MPa and a flame retardance of rating of classification D as measured in accordance with EN ISO 1 1925-2, surface exposure test.

Abstract translation: 本公开涉及一种生产热塑性聚烯烃屋顶膜的方法。 该方法包括将高负载阻燃TPO制剂的组分直接添加到反向旋转双螺杆挤出机中。 该方法包括按照双螺杆的反向挤压制剂，并形成具有大于10MPa的拉伸强度的TPO屋顶膜和根据EN ISO 1 1925-2测量的分级D的等级的阻燃性， 表面暴露试验。

公开(公告)号：US12098268B2

公开(公告)日：2024-09-24

申请号：US17607530

申请日：2019-04-30

Applicant: Dow Global Technologies LLC

Inventor： Xiaosong Wu ,  Tao Han ,  Colin Li Pi Shan

IPC: C08F210/18 ,  C08L23/16

CPC classification number: C08L23/16

Abstract: The present disclosure provides a composition. In an embodiment, the composition includes a neat ethylene/propylene/nonconjugated polyene interpolymer. The neat ethylene/propylene/nonconjugated polyene interpolymer includes from greater than 0 wt % to 6.0 wt % nonconjugated polyene. The neat ethylene/propylene/nonconjugated polyene interpolymer has the following properties: (i) a molecular weight (Mw) from 240,000 to 270,000; (ii) a Mooney viscosity (ML (1+4), 125° C.) from 80 to 85; (iii) a rheology ratio (RR) from 35 to 65; (iv) a Mw/Mn from 2.2 to 3.5; (v) a tan delta ratio from 0.6 to 0.9; and (vi) an absolute tan delta slope from 5.0 to less than 10.0.

公开(公告)号：US11753521B2

公开(公告)日：2023-09-12

申请号：US16969762

申请日：2019-02-14

Applicant: Dow Global Technologies LLC

Inventor： Guang Ming Li ,  Raymond L. Laakso, Jr. ,  Yuming Lai ,  Xiaosong Wu

IPC: C08K3/22 ,  C08L9/00

CPC classification number: C08K3/22 ,  C08L9/00 ,  C08K2003/222 ,  C08K2003/2296

Abstract: A composition comprising at least the following components: A) one or more ethylene/alpha-olefin interpolymers, which comprise ≤3.5 wt % of a non-conjugated diene, based on the weight of the one or more ethylene/alpha-olefin interpolymers; B) an acid acceptor selected from the following: MgO, ZnO, or combination thereof.

公开(公告)号：US20230167289A1

公开(公告)日：2023-06-01

申请号：US17997460

申请日：2021-04-29

Applicant: Dow Global Technologies LLC

Inventor： Stacy L. Pesek ,  Xiaosong Wu ,  Ronald J. Weeks ,  Yushan Hu

IPC: C08L23/14 ,  C08L91/00

CPC classification number: C08L23/14 ,  C08L91/00

Abstract: A composition comprising the following components: a) at least one propylene/ethylene interpolymer or at least one propylene/alpha-olefin interpolymer, each interpolymer comprising the following properties: i) a melting point, Tm, from 60° C. to 85° C., ii) a viscosity (177° C.) from 3,000 cP to 30,000 cP; b) at least one wax; c) at least one oil; and wherein the composition has a weight ratio component b to component c from 0.30 to 4.0.

公开(公告)号：US20220169841A1

公开(公告)日：2022-06-02

申请号：US17599964

申请日：2019-03-29

Applicant: Dow Global Technologies LLC

Inventor： Xiaosong Wu ,  Colin Lipishan ,  Tao Han ,  Libo Du

IPC: C08L23/06

Abstract: Polymer compositions include an interpolymer of ethylene, an α-olefin, and a nonconjugated polyene; and from 10% to 40% by weight oil. The polymer composition has a Mooney viscosity from 20 to 70. The interpolymer may include from 66% to 75% by weight monomer units derived from ethylene; and from 0.5% to 10% by weight monomer units derived from the nonconjugated polyene. The neat interpolymer may have: a weight-average molecular weight Mw from 250 kDa to 300 kDa; a Mooney viscosity from 50 to 200; a rheology ratio V0.1/V100 less than 30; a ratio of molecular weight to low-shear viscosity Mw/V0.1 greater than 4.0; a polydispersity index from 2.0 to 3.5; and a tan δ at 0.1 rad/sand 190° C. greater than 2.0. The polymer compositions may be in the form of pellets having desirable flow characteristics. Thermoplastic vulcanizates may include the polymer compositions. Articles may include the thermoplastic vulcanizates.

公开(公告)号：US20210277213A1

公开(公告)日：2021-09-09

申请号：US17257581

申请日：2019-07-02

Applicant: Dow Global Technologies LLC

Inventor： Stacy L. Pesek ,  Yushan Hu ,  Xiaosong Wu ,  Ronald J. Weeks ,  Miguel Alberto De Jesus Prieto

IPC: C08L23/08 ,  C08K3/26 ,  C08L91/06 ,  D06N7/00

Abstract: A composition comprising the following components: A) a first ethylene/alpha-olefin interpolymer with a melt index I2A; B) a second ethylene/alpha-olefin interpolymer with a melt index I2B; and wherein the difference in melt index (I2): (I2A−I2B)≥400, and wherein I2B≤100 g/10 min; C) a filler, and wherein the filler is present in an amount ≥50 wt %, based on the weight of the composition; D) a tackifier; and wherein the melt viscosity, at 165 C, of the composition, excluding the filler (component C), is ≤30,000 cP.

公开(公告)号：US10526436B2

公开(公告)日：2020-01-07

申请号：US16089923

申请日：2017-03-29

Applicant: Dow Global Technologies LLC

Inventor： Xiaosong Wu ,  Ronald J. Weeks ,  Rennisha Wickham

IPC: C08F295/00 ,  C08F297/08 ,  C08L23/26 ,  C08F210/02 ,  C08F210/06 ,  C08F210/16 ,  C08K5/00 ,  C08L23/08 ,  C08L23/14 ,  C08L53/00

Abstract: A composition comprising (A) from 10 wt % to 90 wt % of a polymeric ethylene ionomer; (B) from 10 wt % to 40 wt % of a propylene component including at least one propylene based polymer having a propylene content of at least 50.0 wt %, based on the total weight of the propylene based polymer, and a melt flow rate from 0.5 g/10 min to 200.0 g/10 min (according to ASTM D-1238 at 230° C./2.16 kg); and (C) from 5 wt % to 20 wt % of a crystalline block composite.

公开(公告)号：US10370524B2

公开(公告)日：2019-08-06

申请号：US14411453

申请日：2013-03-15

Applicant: Dow Global Technologies LLC

Inventor： Xiaosong Wu ,  Colin Li Pi Shan

IPC: C08L23/36 ,  C08L9/00 ,  C08L23/16 ,  C08L23/12 ,  C08L91/00

Abstract: The invention provides a composition comprising at least the following components: A) an ethylene/α-olefin/nonconjugated polyene interpolymer that has the following properties: i) a rheology ratio (V0.1/V100 at 190° C.) greater than, or equal to, 35; ii) a weight average molecular weight (Mw) greater than, or equal to, 200,000 g/mol; and iii) a CCDB (Chemical Composition Distribution Breadth) less than 7; B) a thermoplastic polymer; C) a vulcanization agent; and wherein the interpolymer comprises incorporated oil. The invention also provides a composition comprising the following: A) a first composition comprising: a) a first ethylene/α-olefin/nonconjugated polyene interpolymer; b) a second ethylene/α-olefin/nonconjugated polyene interpolymer; and wherein the first composition has the following properties: i) an MWD less than, or equal to, 3.5, ii) a Mooney Viscosity (ML (1+4, 125° C.)) greater than, or equal to, 60, iii) a CCDB from 7 to 15; B) a thermoplastic polymer; C) a vulcanization agent; and wherein the first interpolymer and the second interpolymer comprise incorporated oil.

公开(公告)号：US10155862B2

公开(公告)日：2018-12-18

申请号：US15539003

申请日：2015-12-11

Applicant: Dow Global Technologies LLC

Inventor： Xiaosong Wu ,  Kim L. Walton ,  Colin Li Pi Shan

IPC: C08F297/08 ,  C08L53/00 ,  C08L23/16 ,  C08L23/12

Abstract: A thermoplastic vulcanizate composition includes (a) a crystalline thermoplastic polyolefin comprising alpha-olefin monomers having from 2 to 5 carbon atoms, (b) a rubber block interpolymer comprising a first block and a second block having differing chemical or physical properties from the first block, the first block is derived from ethylene, a first alpha-olefin monomer having from 3 to 10 carbon atoms, and a first diene monomer having from 2 to 25 carbon atoms, the second block is derived from ethylene, a second alpha-olefin monomer having from 3 to 10 carbon atoms, and optionally a second diene monomer having from 2 to 25 carbon atoms, and an amount of the block interpolymer in the composition being greater than an amount of the thermoplastic polyolefin in the composition, and (c) a curative system.

公开(公告)号：US09403973B2

公开(公告)日：2016-08-02

申请号：US14647563

申请日：2013-12-23

Applicant: Dow Global Technologies LLC

Inventor： Xiaosong Wu ,  Manu Rego

IPC: C08L23/26 ,  C08L23/08

CPC classification number: C08L23/26 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2312/00 ,  C08L23/12

Abstract: A composition comprising at least the following (A) an ethylene/α-olefin copolymer; (B) an olefin-based polymer; (C) a crosslinking agent; and (D) a multifunctional acrylate coagent; wherein the ethylene/α-olefin copolymer of component A) has the following properties: (i) has a density from 0.855 to 0.875 g/cc; and (ii) a Mooney Viscosity (ML 1+4, 121° C.) from 10 to 100 is provided.

Abstract translation: 至少包含以下（A）乙烯/α-烯烃共聚物的组合物; （B）烯烃类聚合物; （C）交联剂; 和（D）多官能丙烯酸酯助剂; 其中组分A）的乙烯/α-烯烃共聚物具有以下性质：（i）具有0.855至0.875g / cc的密度; 和（ii）提供10至100的门尼粘度（ML 1 + 4,121℃）。