KR102772509B1 - 구리 부식이 개선된 극압 첨가제 - Google Patents
구리 부식이 개선된 극압 첨가제 Download PDFInfo
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Abstract
Description
도 2는 하나의 비교용 황화 아이소부틸렌 올리고머 및 2가지의 본 발명의 황화 아이소부틸렌 올리고머를 포함하는 그룹 IV 기유 내의 3가지 윤활제 첨가제의 이미지이며, 이는 비교용 황화 아이소부틸렌 올리고머가 그룹 IV 오일에 가용성이 아니고(좌측 용기) 2가지의 본 발명의 황화 아이소부틸렌 올리고머는 투명한 용액을 고려할 때 그룹 IV 오일에 가용성임(중간 및 우측 용기)을 나타낸다.
Claims (19)
- 하기 단계들을 포함하는 방법에 의해 제조된 황화 폴리올레핀 올리고머:
(a) C2 내지 C18 올레핀을 할로겐화황과 반응시켜 중간체 황화 올레핀 반응 생성물을 형성하는 단계;
(b) 상기 중간체 황화 올레핀 반응 생성물을 수용액 중의 알칼리 금속 수황화물, 알칼리 금속 수산화물, 및 황과 반응시켜 황화 폴리올레핀 반응 생성물을 형성하는 단계; 및
(c) 상기 황화 폴리올레핀 반응 생성물을 알칼리성 수용액으로 처리하여 상기 황화 폴리올레핀 올리고머를 형성하는 단계로서, 상기 알칼리성 수용액은 40 내지 60 중량%의 상기 알칼리 금속 수산화물이고 알코올 또는 케톤이 없는, 단계. - 제1항에 있어서, ASTM D130에 따라 121℃에서 180분 동안 상기 황화 폴리올레핀 올리고머에 침지된 구리 쿠폰은 15 mg 이하의 구리 중량 손실을 나타내고, 2 내지 5 중량%의 상기 황화 폴리올레핀 올리고머가 API 그룹 III 기유(base oil) 및 API 그룹 IV 기유 둘 모두에 가용성인, 황화 폴리올레핀 올리고머.
- 제1항에 있어서, 상기 황화 폴리올레핀 올리고머는 하기 화학식 I의 구조를 갖는, 황화 폴리올레핀 올리고머:
[화학식 I]
R-Sx-R-[Sx-R-Sx]n-R
(상기 식에서, 각각의 R은 독립적으로 C2 내지 C6 선형 또는 분지형 탄소 사슬이고, x는 1 내지 5의 정수이고, n은 상기 황화 폴리올레핀 올리고머가 300 내지 800의 중량 평균 분자량을 갖도록 하는 정수임). - 제3항에 있어서, 상기 황화 폴리올레핀 올리고머는 30 내지 50 중량%의 황을 갖는, 황화 폴리올레핀 올리고머.
- 제1항에 있어서, 상기 올레핀은 에틸렌; 프로필렌; 아이소프로필렌; 부틸렌; 아이소부틸렌; n-펜틸렌; 아이소펜틸렌; 네오펜틸렌; 헥센; 옥텐; 스티렌; αω-다이올레핀; 1,5-헥사다이엔; 1,6-헵타다이엔; 1,7-옥타다이엔; 분지쇄 알파-올레핀; 메틸-펜텐; 메틸-헵텐; 또는 이들의 혼합물로 이루어진 군으로부터 선택되는, 황화 폴리올레핀 올리고머.
- 제5항에 있어서, 상기 할로겐화황은 일염화황, 이염화황, 이브롬화이황, 이브롬화황 또는 이들의 혼합물로부터 선택되는, 황화 폴리올레핀 올리고머.
- 제6항에 있어서, 상기 알칼리성 수용액은 수산화나트륨, 수산화칼륨, 수산화리튬 또는 이들의 조합으로부터 선택되는 알칼리 금속 수산화물을 포함하는, 황화 폴리올레핀 올리고머.
- API 그룹 I 기유 내지 API 그룹 V 기유로부터 선택되는 다량의 기유 및 소량의 황화 폴리올레핀 올리고머를 포함하는 윤활 조성물로서, 상기 황화 폴리올레핀 올리고머는 하기 단계들을 포함하는 방법에 의해 제조되는, 윤활 조성물:
(a) C2 내지 C18 올레핀을 할로겐화황과 반응시켜 중간체 황화 올레핀 반응 생성물을 형성하는 단계;
(b) 상기 중간체 황화 올레핀 반응 생성물을 수용액 중의 알칼리 금속 수황화물, 알칼리 금속 수산화물, 및 황과 반응시켜 황화 폴리올레핀 반응 생성물을 형성하는 단계; 및
(c) 상기 황화 폴리올레핀 반응 생성물을 알칼리성 수용액으로 처리하여 상기 황화 폴리올레핀 올리고머를 형성하는 단계로서, 상기 알칼리성 수용액은 40 내지 60 중량%의 상기 알칼리 금속 수산화물이고 알코올, 케톤, 또는 다른 알칸올이 없는, 단계. - 제8항에 있어서, ASTM D130에 따라 121℃에서 180분 동안 상기 황화 폴리올레핀 올리고머에 침지된 구리 쿠폰은 15 mg 미만의 구리 중량 손실을 나타내고, 2 내지 5 중량%의 상기 황화 폴리올레핀 올리고머가 API 그룹 III 기유 및 API 그룹 IV 기유 둘 모두에 가용성인, 윤활 조성물.
- 제8항에 있어서, 상기 황화 폴리올레핀 올리고머는 하기 화학식 I의 구조를 갖는, 윤활 조성물:
[화학식 I]
R-Sx-R-[Sx-R-Sx]n-R
(상기 식에서, 각각의 R은 독립적으로 C2 내지 C6 선형 또는 분지형 탄소 사슬이고, x는 1 내지 5의 정수이고, n은 상기 황화 폴리올레핀 올리고머가 300 내지 800의 중량 평균 분자량을 갖도록 하는 정수임). - 제10항에 있어서, 상기 황화 폴리올레핀 올리고머는 30 내지 50 중량%의 황을 갖는, 윤활 조성물.
- 제11항에 있어서, 상기 올레핀은 에틸렌; 프로필렌; 아이소프로필렌; 부틸렌; 아이소부틸렌; n-펜틸렌; 아이소펜틸렌; 네오펜틸렌; 헥센; 옥텐; 스티렌; αω-다이올레핀; 1,5-헥사다이엔; 1,6-헵타다이엔; 1,7-옥타다이엔; 분지쇄 알파-올레핀; 메틸-펜텐; 메틸-헵텐; 또는 이들의 혼합물로 이루어진 군으로부터 선택되는, 윤활 조성물.
- 제12항에 있어서, 상기 할로겐화황은 일염화황, 이염화황, 이브롬화이황, 이브롬화황 또는 이들의 혼합물로부터 선택되는, 윤활 조성물.
- 제7항 또는 제13항에 있어서,
상기 처리하는 단계는 100℃ 내지 150℃의 온도에서 1 내지 5시간 동안 수행되고;
상기 윤활 조성물에서, 상기 알칼리성 수용액은 수산화나트륨, 수산화칼륨, 또는 이들의 조합으로부터 선택되는 알칼리 금속 수산화물을 포함하는, 황화 폴리올레핀 올리고머 또는 윤활 조성물. - 제1항 또는 제8항에 있어서,
(i) 단계 (a)의 상기 중간체 황화 올레핀 반응 생성물은 상기 할로겐화황 0.3 내지 0.8 몰당 0.4 내지 2 몰의 C2 내지 C18 올레핀을 반응시킴으로써 수득되고;
단계 (b)의 상기 황화 폴리올레핀 반응 생성물은 상기 중간체 황화 올레핀 반응 생성물 1 몰당 0.2 내지 0.5 몰의 황, 상기 중간체 황화 올레핀 반응 생성물 1 몰당 0.7 내지 1.1 몰의 상기 알칼리 금속 수산화물, 및 0.01:1 내지 0.25:1의 황 대 알칼리 금속 수황화물의 중량비의 상기 알칼리 금속 수황화물을 반응시킴으로써 수득되고;
단계 (c)의 상기 황화 폴리올레핀 올리고머는 상기 황화 폴리올레핀 반응 생성물을 40 내지 60 중량%의 알칼리 금속 수산화물을 갖는 10 내지 50 중량%의 상기 알칼리성 수용액으로 처리함으로써 수득되거나;
또는
(ii) 상기 중간체 황화 올레핀 반응 생성물은 일염화황, 이염화황, 또는 이들의 조합을 C2 내지 C4 올레핀과 반응시킴으로써 수득되고, 상기 황화 폴리올레핀 반응 생성물은 상기 중간체 황화 올레핀 반응 생성물을 수황화나트륨, 수산화나트륨, 및 원소 황과 반응시킴으로써 수득되고, 상기 황화 폴리올레핀 반응 생성물은 12 내지 40 중량%의 수산화나트륨 수용액으로 처리되어 상기 황화 폴리올레핀 올리고머를 형성하는, 황화 폴리올레핀 올리고머 또는 윤활 조성물. - 제13항에 있어서,
상기 알칼리성 수용액은 수산화나트륨, 수산화칼륨, 또는 이들의 조합으로부터 선택되는 알칼리 금속 수산화물을 포함하는, 윤활 조성물. - 제14항에 있어서,
상기 처리하는 단계는 10 내지 50 중량%의 상기 알칼리성 수용액을 포함하는, 황화 폴리올레핀 올리고머 또는 윤활 조성물. - 제1항에 있어서,
상기 처리하는 단계는 100℃ 내지 150℃의 온도에서 그리고 1 내지 5 시간 동안 이루어지는, 황화 폴리올레핀 올리고머. - 제8항에 있어서,
상기 처리하는 단계는 100℃ 내지 150℃의 온도에서 그리고 1 내지 5 시간 동안 이루어지는, 윤활 조성물.
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EP4342964C0 (en) | 2024-07-24 |
JP2024046624A (ja) | 2024-04-03 |
KR20240041266A (ko) | 2024-03-29 |
GB2622650A (en) | 2024-03-27 |
GB202217112D0 (en) | 2022-12-28 |
US11873461B1 (en) | 2024-01-16 |
CN117736785A (zh) | 2024-03-22 |
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