公开(公告)号：US20220306838A1

公开(公告)日：2022-09-29

申请号：US17617877

申请日：2020-06-10

Applicant: Arkema France

Inventor： Guillaume VINCENT ,  Stéphane BIZET ,  Clémence PACE ,  Marie POMMIER DE SANTI

IPC: C08K7/28 ,  C08K7/14 ,  B29C45/00

Abstract: The use of a mixture of solid and hollow glass reinforcements with an alloy of at least one polyamide and at least one polyolefin, the mixture of solid and hollow glass reinforcements including from 5 to 50% by weight of hollow glass beads relative to the total of solid and hollow glass reinforcements for the dry preparation at 23° C. of a composition having a modulus at least equal to 8 GPa and a dielectric constant Dk less than or equal to 3.5 as measured according to ASTM D-2520-13, at a frequency of at least 1 GHz, at 23° C., under 50% RH.

公开(公告)号：US20250162215A1

公开(公告)日：2025-05-22

申请号：US18841259

申请日：2023-02-24

Applicant: ARKEMA FRANCE

Inventor： Romain DAVID ,  Guillaume VINCENT ,  Clémence PACE

IPC: B29C45/00 ,  B29C45/14 ,  B29K96/04 ,  B29K309/08 ,  B29K701/12

Abstract: The present invention relates to an article comprising a first polymer material comprising at least one copolymer comprising PA polyamide blocks and PE polyether blocks (PEBA) and a second polymer material comprising a thermoplastic elastomer (TPE) polymer, the first polymer material and the second polymer material adhering directly to one another, and the first polymer material comprising hollow glass beads. The present invention also relates to the assembly of the first polymer material comprising hollow glass beads and of the second polymer material by a direct adhesion process.

公开(公告)号：US20230391953A1

公开(公告)日：2023-12-07

申请号：US18227532

申请日：2022-01-26

Applicant: ARKEMA FRANCE

Inventor： Clémence PACE ,  Vincent GUILLAUME ,  Mathieu SABARD

IPC: C08G69/08 ,  C08G69/26 ,  C08G69/36 ,  C08K7/14 ,  C08L23/12 ,  C08K5/5313 ,  B29C45/14 ,  C09D177/02 ,  C09D177/06

CPC classification number: C08G69/08 ,  C08G69/26 ,  C08G69/36 ,  C08K7/14 ,  C08L23/12 ,  C08K5/5313 ,  B29C45/14 ,  C09D177/02 ,  C09D177/06 ,  C08L2203/20 ,  B29C2045/14868 ,  B29K2077/00

Abstract: A composition including from: a) 35% to 100% by weight of at least one semicrystalline aliphatic polyamide and/or one polyamide of formula MXDZ wherein MXD is meta-xylylenediamine and Z is a C6 to C12 aliphatic dicarboxylic acid, the semicrystalline aliphatic polyamide and/or the polyamide of formula MXDZ having a total acidity between from 70 to 180 μeq/g and a total basicity of less than 100 μeq/g; b) 0 to 25% by weight of polyolefins; c) 0 to 60% by weight, of glass fibers; d) 0 to 2% by weight of at least one additive; e) 0 to 30% by weight of at least one flame retardant; the sum a)+b)+c)+d)+e) being equal to 100%, the semicrystalline aliphatic polyamide and/or the polyamide of formula MXDZ having a melt flow index (MFI) between from 4 to 50 g/10 min.

公开(公告)号：US20220340753A1

公开(公告)日：2022-10-27

申请号：US17642311

申请日：2020-09-16

Applicant: Arkema France

Inventor： Mathieu SABARD ,  Benoît BRULE ,  Stefania CASSIANO GASPAR ,  Clémence PACE

IPC: C08L77/02

Abstract: The present invention relates to the use of a mixture of at least one semi-crystalline aliphatic polyamide and at least one amorphous polyamide, wherein the at least one semi-crystalline aliphatic polyamide is obtained by polycondensation: of at least one C6 to C18, preferentially C10 to C18, more preferentially C10 to C12 amino acid, or at least one C6 to C18, preferentially C10 to C18, more preferentially C10 to C12 lactam, or at least one C4-C36, preferentially C5-C18, preferentially C5-C12, more preferentially C10-C12 diamine Ca, with at least one C4-C36, preferentially C6-C18, preferentially C6-C12, more preferentially C10-C12 dicarboxylic acid Cb; in order to prepare a semi-crystalline composition, the modulus of which does not vary by more than 25% within the temperature range from 10° C. to 40° C.