公开(公告)号：US20210171793A1

公开(公告)日：2021-06-10

申请号：US17052285

申请日：2019-05-07

Applicant: Arkema Inc.

Inventor： David A. SEILER ,  James T. GOLDBACH ,  George FISHER

IPC: C09D127/16

Abstract: A fluoropolymer-based powdered composition is disclosed. The fluoropolymer has a very low melt viscosity, of less than 2 kilopoise (kP) at 230° C. and 100 s−1 and molecular weights of from 15 kDa to 200 kDa. The composition can be used for powder coating or rotolining processes. The coatings or interior surfaces of the coated or rotolined parts exhibit roughness values, Ra, of less than 25 μin (0.64 μm) corresponding to very smooth surfaces. The coating exhibit very good adhesion to substrates with and without surface preparation as well as very good adhesion to substrates with and without primer.

公开(公告)号：US20200247923A1

公开(公告)日：2020-08-06

申请号：US16856254

申请日：2020-04-23

Applicant: Arkema Inc.

Inventor： DAVID SHIN-REN LIU ,  Gregory S. O'BRIEN ,  David A. SEILER

IPC: C08F14/22 ,  C08L27/16 ,  C08K3/30 ,  C08K3/26 ,  B33Y80/00 ,  B33Y70/00 ,  B33Y10/00 ,  B29C64/118 ,  B29C64/112

Abstract: A lubricant composition includes a base oil present in an amount of greater than 70 parts by weight per 100 parts by weight of the lubricant composition and an antioxidant. The antioxidant has the structure: wherein each X is independently C-A or N, so long as at least one X is N but no more than two of X are N. Moreover, A is H, cyano or an electron donating group that: (1) has an atom having at least one lone pair of electrons that is bonded directly to the aromatic ring; or (2) is an aryl group or alkyl group. Further, each R is independently H, an alkyl group, or aryl group and each R′ is independently an alkyl group or an aryl group.

公开(公告)号：US20160101932A1

公开(公告)日：2016-04-14

申请号：US14893568

申请日：2014-05-28

Applicant: ARKEMA INC.

Inventor： Sean M. Stabler ,  Leo T. HUTTON ,  David A. SEILER

IPC: B65D88/34

CPC classification number: B65D88/34 ,  B65D88/36 ,  E04H4/08

Abstract: The invention relates to chemically resistant structures that float on top of a liquid to reduce the level of evaporation from the liquid. The liquid could be in a small container or vat, or in a larger pool, pond, or reservoir. The structure is preferably a foamed material of a polyamide or fluoropolymer, or may be a hollow or foamed structure having a polyamide or fluoropolymer outer layer. The structures covering the liquid may consist of a single structure or two or more discrete structures that partially or fully cover the surface of a liquid. The covering is especially useful where the fluid contains toxic, reactive or corrosive substances. One preferred structure is a polyvinylidene fluoride foam structure (such as a KYNAR from Arkema Inc) at about 0.1-36 inches in length/diameter.

Abstract translation: 本发明涉及浮在液体顶部以降低液体蒸发水平的耐化学腐蚀结构。 液体可以在一个小容器或桶，或者在一个较大的池，池塘或水库。 该结构优选为聚酰胺或氟聚合物的发泡材料，或者可以是具有聚酰胺或氟聚合物外层的中空或发泡结构。 覆盖液体的结构可以由部分或完全覆盖液体表面的单一结构或两个或更多个离散结构组成。 当流体含有有毒，反应性或腐蚀性物质时，覆盖物尤其有用。 一个优选的结构是长度为约0.1-36英寸的聚偏二氟乙烯泡沫结构（例如来自Arkema Inc的KYNAR）。

公开(公告)号：US20190127500A1

公开(公告)日：2019-05-02

申请号：US15635525

申请日：2017-03-31

Applicant: Arkema Inc.

Inventor： David Shin-Ren LIU ,  Gregory S. O'BRIEN ,  David A. SEILER

IPC: C08F14/22 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y10/00 ,  B29C64/118 ,  C08L27/16 ,  C08K3/013

Abstract: The invention relates to fluoropolymer filament for use in 3-D printing, and 3-D printed fluoropolymer articles having low warpage, excellent chemical resistance, excellent water resistance, flame resistance, and good mechanical integrity. Additionally, the articles of the invention have good shelf life without the need for special packaging. In particular, the invention relates to filament, 3-D printed polyvinylidene fluoride (PVDF) articles, and in particular material extrusion 3-D printing. The articles may be formed from PVDF homopolymers, copolymers, such as KYNAR® resins from Arkema, as well as polymer blends with appropriately defined low shear melt viscosity. The PVDF may optionally be a filled PVDF formulation. The physical properties of the 3-D printed articles can be maximized and warpage minimized by optimizing processing parameters.

公开(公告)号：US20180044456A1

公开(公告)日：2018-02-15

申请号：US15549746

申请日：2016-02-05

Applicant: Arkema Inc.

Inventor： Adam W. FREEMAN ,  James J. HENRY ,  David A. SEILER

IPC: C08F214/22 ,  C08F2/10 ,  C09D127/16 ,  C08F2/01 ,  C08F259/08 ,  C08L27/16

CPC classification number: C08F214/22 ,  C08F2/01 ,  C08F2/10 ,  C08F259/08 ,  C08L27/16 ,  C08L2205/025 ,  C08L2205/04 ,  C09D127/16 ,  C08F214/08 ,  C08F214/282

Abstract: The invention relates to a heterogeneous, co-continuous copolymer composition of vinylidene fluoride and at least one other comonomer. Preferred comonomers are hexafluoropropylene and perfluoroalkylvinyl ether. The co-continuous morphology is provide by first forming a first phase polymer, then adding one or more comonomers before half of the original monomer stream has been added, and at an effective level to cause phase separation of the copolymer. The co-continuous morphology provides a means for incorporating a high level of comonomer into the copolymer with little or no adverse effect on the melting temperature. The morphology also provides the copolymer composition with a unique combination of properties, including a high melting point, good flexibility and good low temperature impact resistance. The unique properties of the polymer make it useful in end-use application where those properties provide performance advantages, such as in the wire and cable market, and in oil and gas applications.