[특허]Ashless dispersants formed from substituted acylating agents and their production and use

Ashless dispersants formed from substituted acylating agents and their production and use 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08F-008/32
출원번호	US-0801488 (1991-12-02)
발명자 / 주소	DeGonia David J. (Granite City IL) Griffin Paul G. (Collinsville IL)
출원인 / 주소	Ethyl Petroleum Additives, Inc. (St. Louis MO 02)
인용정보	피인용 횟수 : 55 인용 특허 : 0

초록 ▼

Succinimides, succinic esters, and succinic ester-amides are formed by (A) reacting (i) at least one substantially aliphatic polymer of at least one lower olefin, and (ii) an acidic reactant or a mixture of two or more acidic reactants represented by the general formula R－CO－CH〓CH－CO－R′ wherein R and R′are independently －OH, －O-lower alkyl, a halogen atom, or taken together are a single oxygen atom; the process being characterized in that: a) the substantially aliphatic polymer is comprised predominantly or entirely of polyisobutene, at least 50% of the polyisobutene content of such polymer having an end group represented by the formula [Figure] b) the mole ratio of said acidic reactant(s): said polymer(s) is at least 1:1; c) the reaction mixture is maintained under superatomospheric pressure during at least a substantial portion of the reaction period; and d) said acylating agent is characterized by having an average total tar rating as determined by the method described in the specification hereof that is at least 25% lower than the average total tar rating of a corresponding product made in the same way under the same reaction conditions using a polyisobutene containing up to 10% of the above-depicted end group; and (B) reacting such acylating agent with at least one alcohol (preferably a polyhydric alcohol) or amine (preferably a polyamine having at least one primary amino group).

대표청구항 ▼

A process for preparing a succinic derivative composition which comprises (A) preparing a substituted succinic acylating agent by a process which comprises reacting (i) at least one substantially aliphatic polymer of at least one lower olefin, and (ii) an acidic reactant or a mixture of two or more acidic reactants represented by the general formula R－CO－CH〓CH－CO－R′ wherein R and R′are independently －OH, －O-lower alkyl, a halogen atom, or taken together are a single oxygen atom; the process being characterized in that: a) the substantially aliphatic polymer is comprised predominantly or entirely of polyisobutene, at least 50% of the polyisobutene content of such polymer having an end group represented by the formula [Figure] b) the mole ratio of said acidic reactant(s):said polymer(s) is at least 1:1; c) the reaction mixture is maintained under superatmospheric pressure during at least a substantial portion of the reaction period; and d) said acylating agent is characterized by having an average total tar rating as determined by the method described in the specification hereof that is at least 25% lower than the average total tar rating of a corresponding product made in the same way under the same reaction conditions using a polyisobutene containing up to 10% of the above-depicted end group; and (B) reacting said acylating agent with a reactant selected from the group consisting of (1) at least one amine having at least one primary or secondary amino group, (2) at least one alcohol, and (3) a combination of at least one amine having at least one primary or secondary amino group and at least one alcohol, the components of (3) being reacted with said acylating agent concurrently or sequentially in any order.

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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

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Ashless dispersants formed from substituted acylating agents and their production and use 원문보기

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Ashless dispersants formed from substituted acylating agents and their production and use 원문보기

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이 특허를 인용한 특허 (55)

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