[특허]Heat stabilized moulding composition

Heat stabilized moulding composition 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08K-003/22 C08L-077/00 C08K-003/00 C08K-005/00
출원번호	US-0288174 (2014-05-27)
등록번호	US-8969460 (2015-03-03)
우선권정보	EP-05075077 (2005-01-17)
발명자 / 주소	Gijsman, Pieter Sour, Wilhelmus J. M. Rulkens, Rudy Janssen, Robert H. C.
출원인 / 주소	DSM IP Assets B.V.
대리인 / 주소	Nixon & Vanderhye P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 17

초록 ▼

A thermostabilized thermoplastic molding composition includes a) a thermoplastic polyamide composition which consists of a blend of at least two polyamides. The at least two polyamides include a1) at least 50 mass %, relative to the total mass of the thermoplastic polyamide composition, of a first polyamide (PA-1) selected from the group consisting of polyamide-4,6, polyamide-6,6 and semi-aromatic polyamides and mixtures thereof; and a2) an amount of 1-50 mass %, relative to the total mass of the thermoplastic polyamide composition, of a second polyamide (PA-2) selected from the group consisting of polyamide-6 and copolymers thereof. The composition also contains b) 0.001-3 mass %, relative to the total mass of the thermoplastic polyamide composition, of a copper salt; and c) 0.01-10 mass %, relative to the total mass of the thermoplastic polyamide composition, of iron oxide. The molding composition exhibits reduced deterioration when exposed to an elevated temperature of 230° C. for a prolonged time period of 1000 hours as compared to an identical molding composition including a Cul/KI stabilization system but not including the iron oxide.

대표청구항 ▼

1. A thermostabilized thermoplastic moulding composition comprising: a) a thermoplastic polyamide composition which consists of a blend of at least two polyamides comprising: a1) at least 50 mass %, relative to the total mass of the thermoplastic polyamide composition, of a first polyamide (PA-1) selected from the group consisting of polyamide-4,6, polyamide-6,6 and semi-aromatic polyamides and mixtures thereof; anda2) an amount of 1-50 mass %, relative to the total mass of the thermoplastic polyamide composition, of a second polyamide (PA-2) selected from the group consisting of polyamide-6 and copolymers thereof;b) 0.001-3 mass %, relative to the total mass of the thermoplastic polyamide composition, of a copper salt; andc) 0.01-10 mass %, relative to the total mass of the thermoplastic polyamide composition, of iron oxide, whereinthe moulding composition exhibits reduced deterioration when exposed to an elevated temperature of 230° C. for a prolonged time period of 1000 hours as compared to an identical moulding composition including a Cul/KI stabilization system but not including the iron oxide. 2. The moulding composition as in claim 1, wherein the copper salt is a copper halogenide/alkalihalogenide combination. 3. The moulding composition as in claim 2, wherein the copper salt is Cul/KI. 4. The moulding composition as in claim 1, the iron oxide comprises particles with a particle size of less than 1 mm. 5. The moulding composition as in claim 4, wherein the particle size of the iron oxide particles is less than 0.1 mm. 6. The moulding composition as in claim 1, wherein the iron oxide comprises particles having a median particle size (D50) of at most 0.01 mm. 7. The moulding composition as in claim 6, wherein the median particle size (D50) of the iron oxide particles is at most 0.001 mm. 8. A moulded part which comprises the moulding composition according to any one of claims 1-3 and 4-7.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Heat stabilized moulding composition 원문보기

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Heat stabilized moulding composition 원문보기

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