11.
    发明专利
    未知

    公开(公告)号:DD298261A5

    公开(公告)日:1992-02-13

    申请号:DD34427290

    申请日:1990-09-28

    Abstract: The present invention provides lubricant oil compositions comprising a polyalkylene glycol polycarbonate. The lubricant oil compositions are useful for industrial gear oil, automotive gear oil, and lubricant oil for refrigerators, rolling installations and fibers, which are excellent in lubricating properties and detergency. The present invention also relates to lubricant oil compositions which comprise a polyalkylene glycol polycarbonate having mutual solubility with an ozone layer-nondestructive Freon such as Freon R-134a, and which are accordingly especially suited for refrigerators using hydrogenated fluorocarbon as a refrigerant. A polyalkylene glycol polycarbonate according to the invention comprises a polyoxypropylene group in the molecular chain and an alkyl group and an alkyloxyalkylene group at the molecular terminals. This invention provides a process for preparing said polyalkylene glycol polycarbonate wherein a polypropylene glycol and a carbonate are allowed to react, said reaction including condensation polymerization. The invention also provides a process without condensation polymerization for preparing a polyalkylene glycol polyol wherein a polyol and a carbonate is allowed to react in the presence of a basic catalyst while a produced alcohol is being distilled off, the catalyst is removed then, and the unreacted carbonate is eliminated.

    LUBRICANT OIL COMPOSITIONS
    12.
    发明专利

    公开(公告)号:CA2026504C

    公开(公告)日:1998-04-28

    申请号:CA2026504

    申请日:1990-09-28

    Abstract: The present invention provides lubricant oil compositions comprising a polyalkylene glycol polycarbonate. The lubricant oil compositions are useful for industrial gear oil, automotive gear oil, and lubricant oil for refrigerators, rolling installations and fibers, which are excellent in lubricating properties and detergency. The present invention also relates to lubricant oil compositions which comprise a polyalkylene glycol polycarbonate having mutual solubility with an ozone layer-nondestructive Freon such as Freon R-134a, and which are accordingly especially suited for refrigerators using hydrogenated fluorocarbon as a refrigerant. A polyalkylene glycol polycarbonate according to the invention comprises a polyoxypropylene group in the molecular chain and an alkyl group and an alkyloxyalkylene group at the molecular terminals. This invention provides a process for preparing said polyalkylene glycol polycarbonate wherein a polypropylene glycol and a carbonate are allowed to react, said reaction including condensation polymerization. The invention also provides a process without condensation polymerization for preparing a polyalkylene glycol polyol wherein a polyol and a carbonate is allowed to react in the presence of a basic catalyst while a produced alcohol is being distilled off, the catalyst is removed then, and the unreacted carbonate is eliminated.

    13.
    发明专利
    未知

    公开(公告)号:DE69031966D1

    公开(公告)日:1998-02-26

    申请号:DE69031966

    申请日:1990-09-28

    Abstract: The present invention provides lubricant oil compositions comprising a polyalkylene glycol polycarbonate. The lubricant oil compositions are useful for industrial gear oil, automotive gear oil, and lubricant oil for refrigerators, rolling installations and fibers, which are excellent in lubricating properties and detergency. The present invention also relates to lubricant oil compositions which comprise a polyalkylene glycol polycarbonate having mutual solubility with an ozone layer-nondestructive Freon such as Freon R-134a, and which are accordingly especially suited for refrigerators using hydrogenated fluorocarbon as a refrigerant. A polyalkylene glycol polycarbonate according to the invention comprises a polyoxypropylene group in the molecular chain and an alkyl group and an alkyloxyalkylene group at the molecular terminals. This invention provides a process for preparing said polyalkylene glycol polycarbonate wherein a polypropylene glycol and a carbonate are allowed to react, said reaction including condensation polymerization. The invention also provides a process without condensation polymerization for preparing a polyalkylene glycol polyol wherein a polyol and a carbonate is allowed to react in the presence of a basic catalyst while a produced alcohol is being distilled off, the catalyst is removed then, and the unreacted carbonate is eliminated.

    LUBRICATING OIL, PROCESS FOR PREPARING ACTIVE COMPONENT AND THE USE THEREOF

    公开(公告)号:CZ280200B6

    公开(公告)日:1995-11-15

    申请号:CS150992

    申请日:1990-09-28

    Abstract: (1) A lubricant oil compsn. comprising a polyalkylene glycol polycarbonate of formula (I): R1-OCOO-(((R2)1-O-)m-COO-)n-R1 (I) where each R1 = an HC gp., not more than C20, chosen from aliphatic, alicyclic, aromatic, aromatic-substd. aliphatic and alkoxyalkylene of formula (II): -(-(-R3-)p-O-)q-R4 where R3 = C2-10 alkylene; R4 = aliphatic, alicyclic or aromatic gp. of not more than C20; p, q (integers) = 1-10; R2 = C2-20 alkylene; l, n (integers) = 1-100; m (integer) = 1-10. (2) A polyalkylene glycol polycarbonate of formula (III): (III) R11-OCOO-(-(R12O-)m-1-R12O-COO-)n-R11 where each R11 = C1-6 alkyl or alkoxylene (IV): -(-R13O-)q-R14 where R13 ethylene or propylene gp., R14 = C1-6 alkyl, q (integer) = 1-10; R12 = propylene, m (integer) = 2-10; n (integer) = 1-10 and 10-95 mol% molecular terminal gps. are occupied by (IV). (3) There are also independent claims for the prepn. of R41-OCOO-(-R42-OCOO)n-R41 (V), equiv. to (III) and both for the prepn. and use in a lubricant compsn. of (VI): R15-(-OCOO-R16).

    PROCESS FOR PRODUCTION OF AROMATIC CARBONATE COMPOUND

    公开(公告)号:CA1330093C

    公开(公告)日:1994-06-07

    申请号:CA596842

    申请日:1989-04-17

    Abstract: Disclosed is a process for producing an aromatic carbonate which comprises reacting a phenolic compound with a di-aliphatic carbonate or an aliphatic-aromatic carbonate in the presence of a catalyst. The catalyst is either SnO and/or a tin compound represented by the following formula wherein X and Y are identical or different and each represents OH, SCN, OR1, OCOR1 or a halogen atom, R1 represents an alkyl or aryl group, X and Y are not alkoxy groups at the same time, and R represents an alkyl or aryl group; or at least one compound of an element selected from the group consisting of Sc, Cr, Mo, W, Mn, Au, Ga, In, Bi, Te and lantanoids. The use of these specific catalysts enables the product to be obtained in high yields and selectivities and makes it easy to purify the product.

    19.
    发明专利
    未知

    公开(公告)号:BR9004888A

    公开(公告)日:1991-09-10

    申请号:BR9004888

    申请日:1990-09-28

    Abstract: The present invention provides lubricant oil compositions comprising a polyalkylene glycol polycarbonate. The lubricant oil compositions are useful for industrial gear oil, automotive gear oil, and lubricant oil for refrigerators, rolling installations and fibers, which are excellent in lubricating properties and detergency. The present invention also relates to lubricant oil compositions which comprise a polyalkylene glycol polycarbonate having mutual solubility with an ozone layer-nondestructive Freon such as Freon R-134a, and which are accordingly especially suited for refrigerators using hydrogenated fluorocarbon as a refrigerant. A polyalkylene glycol polycarbonate according to the invention comprises a polyoxypropylene group in the molecular chain and an alkyl group and an alkyloxyalkylene group at the molecular terminals. This invention provides a process for preparing said polyalkylene glycol polycarbonate wherein a polypropylene glycol and a carbonate are allowed to react, said reaction including condensation polymerization. The invention also provides a process without condensation polymerization for preparing a polyalkylene glycol polyol wherein a polyol and a carbonate is allowed to react in the presence of a basic catalyst while a produced alcohol is being distilled off, the catalyst is removed then, and the unreacted carbonate is eliminated.

    20.
    发明专利
    未知

    公开(公告)号:AT162536T

    公开(公告)日:1998-02-15

    申请号:AT90118684

    申请日:1990-09-28

    Abstract: The present invention provides lubricant oil compositions comprising a polyalkylene glycol polycarbonate. The lubricant oil compositions are useful for industrial gear oil, automotive gear oil, and lubricant oil for refrigerators, rolling installations and fibers, which are excellent in lubricating properties and detergency. The present invention also relates to lubricant oil compositions which comprise a polyalkylene glycol polycarbonate having mutual solubility with an ozone layer-nondestructive Freon such as Freon R-134a, and which are accordingly especially suited for refrigerators using hydrogenated fluorocarbon as a refrigerant. A polyalkylene glycol polycarbonate according to the invention comprises a polyoxypropylene group in the molecular chain and an alkyl group and an alkyloxyalkylene group at the molecular terminals. This invention provides a process for preparing said polyalkylene glycol polycarbonate wherein a polypropylene glycol and a carbonate are allowed to react, said reaction including condensation polymerization. The invention also provides a process without condensation polymerization for preparing a polyalkylene glycol polyol wherein a polyol and a carbonate is allowed to react in the presence of a basic catalyst while a produced alcohol is being distilled off, the catalyst is removed then, and the unreacted carbonate is eliminated.

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