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1. 发明授权

US10113039B2 Process for producing shaped articles of a polymer composition containing a polyamide, halogen-free flame retardant and glass fibers 有权
公开(公告)号：US10113039B2
公开(公告)日：2018-10-30
申请号：US15305140
申请日：2015-04-20
申请人： DSM IP ASSETS B.V.
发明人： Johannes Hoekstra , Rui Zhang
IPC分类号： C08L77/00 , C08J5/10 , C08J3/22 , C08J5/04 , C08K7/14 , C08K5/20 , C08K5/3492
摘要： The invention relates to a process for producing shaped articles comprising the steps of: —compounding a polymer composition (A) containing a polyamide, a halogen-free melamine based flame retardant and at most 15 wt. % of glass fibers into pellets, compounding a polymer composition (B) containing a polyamide, more than 15 wt. % of glass fibers, and not containing halogen-free melamine based flame retardant into pellets, —producing a mixture comprising the pellets of polymer composition (A) and (B), —molding the mixture comprising the pellets of polymer composition (A) and (B) into shaped articles.

2. 发明授权

US10597534B2 Chemically resistant thermoplastic compositions 有权
公开(公告)号：US10597534B2
公开(公告)日：2020-03-24
申请号：US15515631
申请日：2015-09-29
申请人： DSM IP ASSETS B.V.
发明人： Zhujuan Wang , Johannes Hoekstra , Pim Gerard Anton Janssen
IPC分类号： C08L77/06 , C08K3/08 , C08G69/26 , C08L77/02 , C08K7/14
摘要： 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.

3. 发明授权

US10577500B2 Process for the preparation of a semi-crystalline semi-aromatic polyamide 有权
公开(公告)号：US10577500B2
公开(公告)日：2020-03-03
申请号：US15321406
申请日：2014-06-26
申请人： DSM IP Assets B.V.
发明人： Johannes Hoekstra , Rudy Rulkens , Hans Klaas Dijk,Van
IPC分类号： C08L77/06 , C08G69/26 , C08G69/28 , C08G69/30 , C08K7/14 , C08K3/40 , C08L77/00 , C08G81/00 , B29B7/00 , B29B7/82 , B29C45/00 , B29C45/72 , B29K77/00
摘要： The invention relates to a process for the preparation of a semi-crystalline semi-aromatic polyamide copolymer (Co-PA) having a melting temperature (Tm-Co-PA) of at least 300° C., comprising steps of (a) preparing a first semi-crystalline semi-aromatic polyamide (A), having a melting temperature (Tm-A) of at least 310° C.; and consisting of repeat units derived from 45-50 mol % terephthalic acid; 47.5-50 mol % of diamine; and 0-5 mol % of one or more other amine and/or acid group containing components; the mol % being relative to the total molar amount of said amine and/or acid group containing components; and wherein poly-amide (A) is prepared by a process comprising direct solid-state polymerization of a diamine-dicarboxylic acid salt of the terephthalic acid and the diamine; (b) providing a polyamide (B), being an amorphous polyamide having a glass transition temperature (Tg-B) below Tm-A, or a second semi-crystalline polyamide having a melting temperature (Tm-B) below Tm-A, or a combination of the amorphous polyamide and the second semi-crystalline polyamide; (c) heating and melt-mixing polyamide (A) and polyamide (B), thereby obtaining a miscible polymer melt with a temperature (T-melt) above Tm-A; and (d) cooling the melt to a temperature below the solidification temperature of the melt, thereby obtaining a solid semi-crystalline semi-aromatic polyamide copolymer.

4. 发明授权

US10377897B2 Laser-markable polyamide composition 有权
公开(公告)号：US10377897B2
公开(公告)日：2019-08-13
申请号：US15311346
申请日：2015-05-18
申请人： DSM IP ASSETS B.V.
发明人： Raul Marcelino Perez Graterol , Franciscus Gerardus Henricus Van Duijnhoven , Franciscus Wilhelmus Maria Gelissen , Johannes Hoekstra
IPC分类号： C08L77/00 , C08L77/02 , B41M5/26 , C08J3/22 , C08J3/20 , C08K3/22 , C08K5/098 , C08K5/3492 , C08K7/14 , C08L77/06
摘要： The invention relates to a laser-markable polyamide composition comprising: a first phase comprising Sb2O3 and an aliphatic polyamide with an amide density AD1, and a second phase comprising an aliphatic polyamide with an amide density AD2, wherein AD1-AD2 is at least 0.01, and wherein the amount of Sb2O3 is between 0.1 and 5 wt %, a halogen-free flame retardant in an amount of between 1 to 25 wt %, wherein the amount in weight percentage are based on the total amount of composition. The invention also relates to a process for preparing a laser-markable polyamide composition, as well as laser-marked products comprising the composition.

5. 发明授权

US10017628B2 Flame retarded thermoplastic moulding composition 有权
公开(公告)号：US10017628B2
公开(公告)日：2018-07-10
申请号：US14904255
申请日：2014-07-09
申请人： DSM IP ASSETS B.V.
发明人： Johannes Hoekstra , Pim Gerard Anton Janssen
IPC分类号： C08K3/00 , C08K5/5313 , C08G69/26 , C08L77/06 , C08K7/02 , C08K3/013
CPC分类号： C08K5/5313 , C08G69/26 , C08K3/013 , C08K7/02 , C08L77/06
摘要： 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.

6. 发明申请

US20140371357A1 LIVE PART IN UNATTENDED HOUSEHOLD APPLIANCES 审中-公开
标题翻译：未使用家用电器的实际部分
公开(公告)号：US20140371357A1
公开(公告)日：2014-12-18
申请号：US14368150
申请日：2012-12-11
申请人： DSM IP ASSETS B.V.
发明人： Johannes Hoekstra , Josien Krijgsman , Rui Zhang
IPC分类号： C08K5/3492 , C08K7/14 , C08K5/5313
CPC分类号： C08K5/34922 , C08K5/3492 , C08K5/5313 , C08K7/14 , C08L77/06
摘要： The invention relates to plastic component for use as a live part in unattended household appliances, complying with IEC 60335 and/or VDE approval for use in unattended household appliances, wherein the plastic component is made from a halogen free flame retardant polymer composition comprising (A) a thermoplastic polyamide polymer; (B) 10-40 wt. % of glass fibers; (C) 10-40 wt. % of melam; and (D) 0-15 wt. % of a halogen free flame retardant; wherein the wt. % are relative to the total weight of the composition; with the proviso that when the polyamide or polyamides in component (A) consist of monomeric units comprising less than 10 mole % of aromatic units, relative to the total molar amount of the monomeric units, the amount of melam (C) is in the range of 15-40 wt. %.
摘要翻译：本发明涉及用于无人值守的家用电器中的带电部件的塑料部件，其符合IEC 60335和/或VDE批准用于无人看管的家用电器，其中塑料部件由无卤阻燃聚合物组合物制成，该组合物包含（A ）热塑性聚酰胺聚合物; （B）10-40重量％％玻璃纤维; （C）10-40重量％百里香和（D）0-15wt。％的无卤阻燃剂; 其中wt。％相对于组合物的总重量; 条件是当组分（A）中的聚酰胺或聚酰胺由包含少于10摩尔％芳族单元的单体单元相对于单体单元的总摩尔量组成时，二聚氰胺（C）的量在该范围内为15-40重量％％。

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