公开(公告)号：US10597534B2

公开(公告)日：2020-03-24

申请号：US15515631

申请日：2015-09-29

Applicant: DSM IP ASSETS B.V.

Inventor： Zhujuan Wang ,  Johannes Hoekstra ,  Pim Gerard Anton Janssen

IPC: C08L77/06 ,  C08K3/08 ,  C08G69/26 ,  C08L77/02 ,  C08K7/14

Abstract: The present invention relates to a thermoplastic composition comprising: a) a polyamide component comprising at least three amide monomer units and b) a stabilizer characterized in that at least one of the at least three amide monomer units is an aliphatic amide monomer unit having a carbon to nitrogen ratio (C/N) equal to, or above 6.5, in that at least two of the at least three amide monomer units are semi-aromatic amide monomer units which polymerized provide at least one semi-crystalline semi-aromatic polyamide having a melting temperature of at least 290° C. as measured by DSC at a heating rate of 10° C./min according to standard ISO 1 1357-3 (2009), and in that the amount of aliphatic amide monomer unit is in the range from 20 to 60 wt. % relative to the total weight of the at least three amide monomer units in the polyamide components and the total amount of semi-aromatic amide monomer units is in the range from 40 to 80 wt. % relative to the total weight of the at least three amide monomer units in the polyamide components and characterized in that the stabilizer is chosen from a copper-containing stabilizer, an iron-containing stabilizer and a stabilizer containing copper and iron.

公开(公告)号：US09832869B2

公开(公告)日：2017-11-28

申请号：US14910093

申请日：2014-07-09

Applicant: DSM IP ASSETS B.V.

Inventor： Alexander Antonius Marie Stroeks ,  Pim Gerard Anton Janssen

IPC: H05K1/00 ,  H05K3/00 ,  C08G69/26 ,  H05K1/03 ,  B29C55/00 ,  B29C55/12 ,  C08J5/18 ,  C08L77/06 ,  B29C55/04 ,  H05K1/02 ,  B29K77/00

CPC classification number: H05K1/0346 ,  B29C55/005 ,  B29C55/04 ,  B29C55/12 ,  B29K2077/00 ,  C08G69/26 ,  C08G69/265 ,  C08J5/18 ,  C08J2377/06 ,  C08L77/06 ,  H05K1/028 ,  H05K1/0366 ,  H05K1/0373 ,  H05K1/0393 ,  H05K3/0064

Abstract: The invention relates to a stretched polymer film made of a polyamide composition comprising a semi-crystalline semi-aromatic polyamide (PPA), wherein the PPA consists of repeat units derived from aromatic dicarboxylic acid comprising at least 80 mole % of terephthalic acid, relative to the total amount of aromatic dicarboxylic acid; and diamine comprising at least 5 mole % 1,4-butanediamine and at least 5 mole % 1,6-hexanediamine, relative to the total amount of diamine, the combined amount of 1,4-butanediamine and 1,6-hexanediamine being at least 60 mole % relative to the total amount of diamine; and 0-2 mole % of other monomeric units, relative to the total amount of aromatic dicarboxylic acid, diamine and other monomeric units. The invention further relates to a process for preparing the polyamide film by melt extrusion and stretching of the film.

公开(公告)号：US11820873B2

公开(公告)日：2023-11-21

申请号：US16954676

申请日：2018-12-20

Applicant: DSM IP ASSETS B.V.

Inventor： Pim Gerard Anton Janssen ,  Marc Rudolf Stefan Huisman ,  Giacomo Perfetti

IPC: C08J5/04 ,  B29C65/16 ,  B29C65/00 ,  B29C70/16 ,  B32B1/08 ,  B29K77/00 ,  B29K307/04 ,  B29L23/00

CPC classification number: C08J5/042 ,  B29C65/1677 ,  B29C66/7212 ,  B29C70/16 ,  B32B1/08 ,  B29K2077/00 ,  B29K2307/04 ,  B29L2023/22 ,  C08J2377/00

Abstract: The invention relates to a thermoplastic composite material comprising a thermoplastic matrix and a fibrous material impregnated with the thermoplastic matrix, wherein the fibrous material comprises carbon fibers with a weight average aspect ratio of length divided by diameter (L/D) of at least 500; the thermoplastic matrix comprises a thermoplastic polymer and a laser absorbing additive.

公开(公告)号：US11224997B2

公开(公告)日：2022-01-18

申请号：US15537747

申请日：2015-12-17

Applicant: DSM IP Assets B.V.

Inventor： Pim Gerard Anton Janssen ,  Arun Anantrao Kulkarni ,  Konraad Albert Louise Hector Dullaert

IPC: B29C33/40 ,  B29C41/14 ,  B29C41/38 ,  C08G69/26 ,  C08L77/06 ,  C08K7/14 ,  C08L77/00 ,  C08L77/10 ,  B29C33/38 ,  B29K309/08

Abstract: The present invention relates to a plastic material for use in various application. Further, the present invention relates to a plastic material for an industrial former (herein also designated as a mold). Additionally, the present invention relates to a mold made of a plastic material and the method for the manufacture of said mold. Furthermore, the present invention relates to an industrial process using such mold, such as in a process for making rubber goods comprising dipping of a mold into a rubber emulsion, wherein the mold consisting of a plastic material having a surface tension in the range from 25 to 60 mJ/m2 measured according to ASTM standard D-2578/09.

公开(公告)号：US10017628B2

公开(公告)日：2018-07-10

申请号：US14904255

申请日：2014-07-09

Applicant: DSM IP ASSETS B.V.

Inventor： Johannes Hoekstra ,  Pim Gerard Anton Janssen

IPC: C08K3/00 ,  C08K5/5313 ,  C08G69/26 ,  C08L77/06 ,  C08K7/02 ,  C08K3/013

CPC classification number: C08K5/5313 ,  C08G69/26 ,  C08K3/013 ,  C08K7/02 ,  C08L77/06

Abstract: The invention relates to a flame retarded thermoplastic moulding composition comprising (A) a polyamide (B) a flame retardant system comprising a metal salt of a phosphinic acid and/or a diphosphinic acid; and either (C) a fibrous reinforcing agent; or (D) an inorganic filler; or a combination of (C) and (D), wherein (A) consists primarily of a semi-crystalline semi-aromatic polyamide (A1) with a melting temperature of at least 310° C. and consisting of repeat units, predominantly derived from terephthalic acid and diamines selected from C2-C8 diamines and having a molar average number of carbon atoms of at most 7.