公开(公告)号：US12286492B2

公开(公告)日：2025-04-29

申请号：US17284828

申请日：2019-10-15

Applicant: Arkema France

Inventor： Pierre Escale ,  Pierre Gerard ,  Dana Swan ,  Robert Barsotti ,  Nathan Bachman ,  Jing-Han Wang

IPC: C08F220/14 ,  B29B15/12 ,  C08J5/24 ,  B29C70/52 ,  B29K33/00

Abstract: The present invention relates to a (meth)acrylic composition suitable for (meth)acrylic polymeric compositions and (meth)acrylic polymeric composites, its method of preparation and its use. In particular the present invention relates to a (meth)acrylic composition that is slightly crosslinked once polymerized and that is suitable for (meth)acrylic composites and more particular for rebars. More particularly the present invention relates to a (meth)acrylic composition suitable for rebars, preparing such a (meth)acrylic compositions, composite rebar comprising is and method of preparing such a composite rebar. The present invention also relates also to the use of such a (meth)acrylic composition and use of rebars.

公开(公告)号：US11623412B2

公开(公告)日：2023-04-11

申请号：US16492626

申请日：2018-03-13

Applicant: Arkema France

Inventor： Virginia Bozsak ,  Guillaume R. Cledat ,  Pierre Gerard ,  Michel Glotin

IPC: B29C65/00 ,  B29C65/02 ,  B29C65/48 ,  B29K33/00 ,  B29L31/30

Abstract: The invention relates to a process (100) for manufacturing an object (1) made of thermoplastic polymer composite from at least two parts (10) made of thermoplastic polymer composite, said thermoplastic polymer composite comprising a fibrous reinforcement and a thermoplastic polymer matrix, said process comprising the steps of:
arranging (120) the two parts (10) made of thermoplastic polymer composite adjacently or overlapping at an assembly interface zone (11), and
heating (130) to melt the thermoplastic polymer matrix at said assembly interface zone (11), so as to form an object (1) made of thermoplastic polymer composite comprising a welded interface (12).

公开(公告)号：US11492355B2

公开(公告)日：2022-11-08

申请号：US16492998

申请日：2018-03-27

Applicant: Arkema France

Inventor： Jean-Charles Fontanier ,  Jean-Francois Gerard ,  Pierre Gerard ,  Frederic Lortie ,  Jean-Pierre Pascault

IPC: C07D491/18 ,  C08F20/06 ,  C08K5/3415 ,  C08L33/10

Abstract: The invention relates to a crosslinking compound of formula (I) In particular, the present invention relates to a liquid composition comprising a monomer, a (meth)acrylic polymer and at least one crosslinking compound of formula (I). This liquid composition may be used in the form of a syrup and in particular in the form of a syrup for impregnating fibers or fibrous material. The invention also relates to a pseudo-thermoplastic material obtained after polymerization of the liquid composition being at least partially crosslinked. The invention also relates to a process for manufacturing such a liquid composition. The invention also relates to a process for impregnating a long-fiber fibrous substrate with said liquid composition. The invention also relates to a fibrous substrate impregnated with said liquid composition which is useful for manufacturing composite parts. The present invention also relates to a process for manufacturing mechanical parts or structural elements made of composite material and to mechanical parts or structural elements made of composite material obtained via a process using such a liquid composition.

公开(公告)号：US10920062B2

公开(公告)日：2021-02-16

申请号：US16311775

申请日：2017-06-29

Applicant: Arkema France

Inventor： Pierre Escale ,  Pierre Gerard ,  Aline Couffin ,  Raber Inoubli

IPC: C08L33/12 ,  C08F265/06 ,  C08F285/00 ,  C08L9/00

Abstract: The present invention relates to a composition comprising two different (meth)acrylic polymers and a multistage polymer. In particular the present invention it relates to polymeric composition comprising two different (meth)acrylic polymers and a multistage polymer. The invention also relates to a process for manufacturing such polymeric composition. More particularly the present invention relates also to a process for preparing an impact modified composition comprising two different (meth)acrylic polymers and a multistage polymer.

公开(公告)号：US20190211166A1

公开(公告)日：2019-07-11

申请号：US16352932

申请日：2019-03-14

Applicant: Arkema France

Inventor： Pierre Gerard

IPC: C08J5/10 ,  D06M15/263 ,  C08K3/013 ,  C08K7/28 ,  C03C25/285 ,  C08L33/12 ,  C08J5/24 ,  D06M13/203

CPC classification number: C08J5/10 ,  C03C25/285 ,  C08F220/14 ,  C08J5/24 ,  C08J2333/12 ,  C08J2433/12 ,  C08K3/013 ,  C08K3/36 ,  C08K7/28 ,  C08L33/12 ,  C08L33/14 ,  D06M13/203 ,  D06M15/263

Abstract: The present invention relates to a liquid (meth)acrylic syrup for impregnating a fibrous substrate; a viscous liquid syrup mainly containing methacrylic or acrylic components, and preferably hollow beads; to a process for manufacturing such a syrup; to a process for impregnating a fibrous substrate or long fibers with said viscous liquid syrup; to a fibrous substrate preimpregnated with said syrup, which is useful for manufacturing mechanical or structured parts or products; to a manufacturing process for manufacturing mechanical or structured parts or articles; and to three-dimensional mechanical or structured parts obtained by this process. The invention makes it possible to significantly reduce the exothermic peak during the polymerization of the syrup, to reduce the residual content of monomer at the end of polymerization, and to obtain parts made of composite material that have few or no defects.

公开(公告)号：US10040889B2

公开(公告)日：2018-08-07

申请号：US14786193

申请日：2014-04-25

Applicant: Arkema France

Inventor： Pierre Gerard ,  Daniel Callin

IPC: C08F265/06 ,  C08F220/14 ,  C08J5/24 ,  C08J5/04 ,  B29C70/42

CPC classification number: C08F265/06 ,  B29C70/42 ,  C08F220/14 ,  C08J5/04 ,  C08J5/24 ,  C08J2333/06 ,  C08J2351/00

Abstract: The present invention relates to a liquid (meth)acrylic syrup, its method of polymerization and article obtained thereof. In particular the present invention deals with a liquid (meth)acrylic syrup comprising an initiation system for polymerization at low temperature. More particularly the present invention relates to a liquid (meth)acrylic syrup comprising an initiator system for polymerization at low temperature, said initiating system comprises at least one accelerator, at least one organic aldehyde, at least one peracid and at least one liquid peroxy compound; an impregnation process for a fibrous substrate, the liquid (meth)acrylic syrup for implementing this process, and the obtained impregnated fibrous substrate. The impregnated fibrous substrate is suitable for manufacturing mechanical or structured parts or articles. The present invention concerns also the process for polymerizing a liquid (meth)acrylic syrup comprising an initiation system for polymerization at low temperature said initiating system comprises at least one accelerator, at least one organic aldehyde, at least one peracid, and at least one liquid peroxy compound. The present invention concerns also manufacturing process for manufacturing mechanical or structured parts or articles and three-dimensional mechanical or structured parts obtained by this process.

公开(公告)号：US09777140B2

公开(公告)日：2017-10-03

申请号：US14352090

申请日：2012-10-19

Applicant: Arkema France

Inventor： Pierre Gerard ,  Michel Glotin ,  Gilles Hochstetter

IPC: C08J5/24 ,  C08K7/14 ,  C08F265/06 ,  C08L33/12 ,  C08F220/14 ,  B29C70/44 ,  C08K7/06 ,  B29K33/00

CPC classification number: C08K7/14 ,  B29C70/44 ,  B29K2033/12 ,  C08F220/14 ,  C08F265/06 ,  C08J5/24 ,  C08J2333/12 ,  C08K7/06 ,  C08L33/12 ,  C08F220/18

Abstract: The present invention relates to a composite material obtained by in situ polymerization of a thermoplastic resin with a fibrous material. More particularly the present invention relates to a polymeric composite material obtained by in-situ polymerization of a thermoplastic (meth) acrylic resin and a fibrous material containing long fibers and its use, a process for making such a composite material and manufactured mechanical or structured part or article comprising this polymeric composite material.

公开(公告)号：US11040501B2

公开(公告)日：2021-06-22

申请号：US15532730

申请日：2015-12-03

Applicant: Arkema France ,  INSTITUT DE SOUDURE

Inventor： Jean-Pierre Cauchois ,  Pierre Gerard ,  Gilles Francois ,  Sébastien Taillemite ,  Henri Perrin

IPC: B29C70/48 ,  B29C70/46 ,  B29C43/36 ,  B29C33/10 ,  B29C33/00 ,  B29K101/10 ,  B29K105/08

Abstract: The invention relates to a molding device (1) and a method for the manufacture of structured or semistructured composite components comprising a polymer resin (50) and a fibrous substrate (51). According to the invention, the device comprises a mold (2) comprising a bottom and a lateral surface, a part (10) that is movable along the lateral surface of the mold, comprising a compression surface (14) forming a cavity (7) with the bottom and the lateral surface (5) of said mold (2), characterized in that the movable part (10) comprises a vacuum-drawing channel (13, 23) opening into a chamber (25, 42) located above the cavity and communicating with said cavity (7).

公开(公告)号：US10987639B2

公开(公告)日：2021-04-27

申请号：US16073855

申请日：2017-02-01

Applicant: Arkema France ,  Polymem

Inventor： Walter Phillip Kosar ,  Olivier Lorain ,  Sébastien Marcellino ,  François Beaume ,  Pierre Gerard

IPC: B01D71/80 ,  C08F293/00 ,  B01D71/40 ,  C08L27/16 ,  B01D61/14 ,  B01D71/32 ,  C08F220/18 ,  C08F220/28

Abstract: Provided is a an amphiphilic diblock copolymer including from 40 to 60% by weight, relative to the weight of the copolymer, of a hydrophilic block including a unit derived from an n-butyl acrylate monomer and a derived from a hydroxyethyl methacrylate monomer. The copolymer also includes from 40 to 60% by weight, relative to the weight of the copolymer, of a hydrophobic block including at least one unit derived from a methyl methacrylate monomer. Also provided is a polymeric membrane that includes the block copolymer and a hydrophobic polymeric matrix. This membrane is useful for treating an effluent, for example, water.

公开(公告)号：US10882966B2

公开(公告)日：2021-01-05

申请号：US16352932

申请日：2019-03-14

Applicant: Arkema France

Inventor： Pierre Gerard

IPC: C08J5/10 ,  D06M13/203 ,  C08J5/24 ,  C03C25/285 ,  C08L33/12 ,  D06M15/263 ,  C08K3/013 ,  C08K7/28 ,  C08F220/14 ,  C08K3/36 ,  C08L33/14

Abstract: The present invention relates to a liquid (meth)acrylic syrup for impregnating a fibrous substrate; a viscous liquid syrup mainly containing methacrylic or acrylic components, and preferably hollow beads; to a process for manufacturing such a syrup; to a process for impregnating a fibrous substrate or long fibers with said viscous liquid syrup; to a fibrous substrate preimpregnated with said syrup, which is useful for manufacturing mechanical or structured parts or products; to a manufacturing process for manufacturing mechanical or structured parts or articles; and to three-dimensional mechanical or structured parts obtained by this process. The invention makes it possible to significantly reduce the exothermic peak during the polymerization of the syrup, to reduce the residual content of monomer at the end of polymerization, and to obtain parts made of composite material that have few or no defects.