公开(公告)号：US11613640B2

公开(公告)日：2023-03-28

申请号：US17261187

申请日：2019-07-24

Applicant: Arkema Inc.

Inventor： James J. Henry ,  Gregory S. O'Brien

IPC: C08L27/16 ,  B32B5/18 ,  B32B27/06 ,  B32B27/20 ,  B32B27/30 ,  B32B1/08 ,  C08F214/22 ,  H01B3/44

Abstract: The invention relates to polyvinylidene fluoride (PVDF) copolymer compositions that have improved crosslinking efficiency and performance. The PVDF copolymer contains a high level (>14 and preferably greater than 16 wt %) of a fluorinated comonomer, and has a high molecular weight as measured by the melt viscosity at 230° C. and 100 sec−1 of 18 to 40 kpoise. The composition can be effectively cross-linked with a low level radiation (high cross-linking efficiency). The cross-linked composition is useful in high-temperature applications, such as automotive wire and cable, and heat shrink tubing.

公开(公告)号：US20230049591A1

公开(公告)日：2023-02-16

申请号：US17788324

申请日：2021-01-06

Applicant: Arkema Inc.

Inventor： Kyu-Jun KIM

IPC: C08G18/24 ,  C08G18/75 ,  C08G18/42 ,  C09D175/06

Abstract: The present invention relates to a polyester-urethane composition. In particular, the invention relates to aliphatic alkyl ring-containing compositions that are useful for producing ultraviolet light resistant coatings. The invention further relates to pigmented and clear coating compositions formulated with the polyester-urethane composition of the present invention. The polyester-urethane compositions may be crosslinked.

公开(公告)号：US20220403155A1

公开(公告)日：2022-12-22

申请号：US17771535

申请日：2020-10-29

Applicant: Arkema Inc.

Inventor： Kevin R. Yocca ,  Eric J. Peterson

IPC: C08L63/00 ,  C08L33/08 ,  C08L33/10 ,  C08L23/28 ,  C08J9/00 ,  C08J9/04 ,  C08J9/228

Abstract: A method of reducing foamed density that results in a foamed polyvinyl chloride (PVC) component exhibiting reduced density. The foamed PVC component contains at least a PVC resin and a process aid blend. The process aid blend contains from 1 weight % to 60 weight % (based on the weight of the blend) of a functionalized process aid, and from 99 weight % to 40 weight % (based on the weight of the blend) of a non-functionalized process aid. The functionalized process aid includes at least one base polymer functionalized with a reactive epoxy, hydroxyl, β-keto ester, β-keto amide, or carboxylic acid functional group. The foamed PVC component containing the process aid blend has a lower density than a reference foamed PVC component made using the same process conditions and additives, but which contains only non-functionalized process aid and not the functionalized process aid.

公开(公告)号：US20220298313A1

公开(公告)日：2022-09-22

申请号：US17617068

申请日：2020-06-18

Applicant: Arkema Inc.

Inventor： Ramin AMIN-SANAYEI ,  Jeremie BREZUN ,  Mark AUBART ,  Christian COLLETTE

IPC: C08J5/18 ,  C08J9/28 ,  C08K3/22 ,  C08K3/04 ,  C08K3/36 ,  H01M50/446 ,  H01M50/403 ,  H01M50/491

Abstract: This invention discloses a reticulated film composite and a method of fabricating the reticulated film composite suitable as a separator in electrochemical cells as sound absorbing films, or as high efficiency filtering media. The reticulated film composite is produced by casting and drying of a slurry which exhibits a high yield stress (i.e. greater than 50 dyne/cm2) and comprised of a high MW resin dissolved in a solvent (i.e. having solution viscosity of higher than 100 cp at 5% in NMP or in water at room temperature) and dispersed nanoparticles with high specific surface areas (i.e. greater than 10 m2/g) such as fumed alumina, or fumed silica, or fumed zirconia or mixture thereof. This reticulated film composite exhibits superior cycling properties and high ionic conductivity with a porosity up to 80% while maintains a high dimensional stability (i.e. less than 10% shrinking) at elevated temperatures (up to 140° C.). The reticulated composite separator coating can be used in combination with an electrode coating either in two separate process steps, or in a one-step process by having a simulations multi-layer casting of electrode and separator to manufacture a lithium ion battery.

公开(公告)号：US20220267600A1

公开(公告)日：2022-08-25

申请号：US17723521

申请日：2022-04-25

Applicant: Arkema Inc.

Inventor： Benjamin Bin Chen ,  Joseph S. Costa

IPC: C08L79/00 ,  C08J9/14

Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is predominately the trans isomer of the hydrochlorofluoroolefin (HCFO) HFCO-1233zd alone or in combination with a hydrofluoroolefin (HFO), hydrofluorocarbon (HFC), hydrochlorofluoroolefin (HCFO), a hydrocarbon. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.

公开(公告)号：US11384216B2

公开(公告)日：2022-07-12

申请号：US16435716

申请日：2019-06-10

Applicant: Arkema Inc.

Inventor： Lily Liu ,  Wayne Devonport ,  Daniel Edward Stark, Sr. ,  Matthew F. Boudreaux

IPC: C08J9/24 ,  C08J9/28 ,  C08J9/16 ,  C08J9/224 ,  C08F285/00 ,  C08F6/00

Abstract: A process for forming voided latex particles is improved by combining swelling and polymerization of an outer shell into a single step. The process includes contacting multi-stage emulsion polymer particles comprising a core, at least one intermediate shell, with a swelling agent, and polymerizing an outer shell after said contacting with swelling agent wherein the core and the at least one intermediate shell are contacted with swelling agent in the presence of less than 0.5% monomer based on the weight of the multi-stage emulsion polymer particles, and substantially all of the swelling occurs during polymerization of the outer shell.

公开(公告)号：US20220135719A1

公开(公告)日：2022-05-05

申请号：US17574875

申请日：2022-01-13

Applicant: Arkema Inc.

Inventor： Benjamin Bin CHEN ,  Craig Alan POLSZ ,  Lucy CLARKSON

IPC: C08F220/24 ,  C08F220/22 ,  C09D133/16 ,  C08F220/14

Abstract: A curable composition containing at least one of a haloalkyl ether (meth)acrylate or a haloalkenyl ether (meth)acrylate and, optionally, one or more different types of co-monomers is cured to provide a polymer having advantageous properties as a result of the incorporation of halogenated functionality derived from the haloalkyl/haloalkenyl ether (meth)acrylate monomer.

公开(公告)号：US20220009859A1

公开(公告)日：2022-01-13

申请号：US17293639

申请日：2019-10-10

Applicant: Arkema Inc.

Inventor： Anne M. PIGAMO ,  Kevin HISLER ,  Wayne BROOKS ,  Jay F. MILLER ,  Bertrand Louis Maurice COLLIER ,  Emmanuel D. BOUSSARIE

IPC: C07C17/395 ,  C07C17/383 ,  C07C17/42

Abstract: Disclosed is a method of purifying a stream of crude hydrochlorofluoroolefin refrigerant produced by the reaction of 1,1,3,3 tetrachloropropene (R1230za) or 1,1,1,3,3-pentachloropropane (R240fa) with HF. The process includes a step of removing the cis-(Z) isomer by distillation of the crude refrigerant stream prior to a step of reacting the crude refrigerant stream with a base. The reaction with the base is a necessary step in production of the refrigerant and is done to remove HF and residual HCl from the crude refrigerant stream. Removal of the cis-(Z) isomer before the reaction with the base reduces the amount of toxic flammable trifluoropropyne (TFP) that is produced as a side-reaction during the reaction with the base. In addition, temperature control during the reaction with the base is less critical to minimizing the TFP production if the cis-(Z) isomer is first removed.

公开(公告)号：US20210371181A1

公开(公告)日：2021-12-02

申请号：US17272744

申请日：2019-10-14

Applicant: Arkema Inc.

Inventor： Peter R. DLUZNESKI ,  Leonard PALYS ,  Sara REYNAUD

IPC: B65D77/04 ,  B65D77/22 ,  B65D88/12

Abstract: A container which is useful for safely storing and transporting compositions, such as liquid organic peroxide-containing compositions, which may be flammable, combustible, susceptible to exothermic decomposition, explosive and/or otherwise hazardous, is provided. The container includes a containment vessel having thermoset polymer-containing walls, as well as a vent mechanism. The containment vessel may be manufactured by a rotational molding process using a thermoplastic polymer, such as a polyethylene, which is crosslinked to provide the thermoset polymer.

公开(公告)号：US20210363293A1

公开(公告)日：2021-11-25

申请号：US17278430

申请日：2019-09-20

Applicant: Arkema Inc.

Inventor： Kyu-Jun KIM

IPC: C08G63/52 ,  C08G63/83 ,  C09D167/08 ,  C09D11/105 ,  C09J167/08 ,  C09K3/10

Abstract: An alkyd polymer composition for fast-drying, low VOC applications is provided. The alkyd polymer incorporates a minimum required level of a cyclic ether- and hydroxyl-containing composition formed from a sugar alcohol during the alcoholysis step while synthesizing the alkyd polymer. The disclosure also relates to the cyclic ether- and hydroxyl-containing composition which must have a minimum required level of cyclic ether structure incorporated therein in order to produce a sufficiently fast-drying alkyd polymer. Methods of making the cyclic ether- and hydroxyl-containing composition and the alkyd polymer comprising, as polymerized units, the cyclic ether- and hydroxyl-containing composition and a poly acid and/or an anhydride compound, as well as an optional polyol, other than the sugar alcohol, are also provided. Also provided is a 13 C NMR method of characterizing the necessary minimum required level of cyclic ether ring structure in the cyclic ether- and hydroxyl-containing composition and the alkyd polymer formed therefrom.