32.
    发明专利
    未知

    公开(公告)号:AT99716T

    公开(公告)日:1994-01-15

    申请号:AT88309411

    申请日:1988-10-07

    Abstract: A method of producing a polysilane compound which comprises polymerizing a monomeric silane of general formula wherein each R independently represents hydrogen or a hydrocarbon group provided that both R's are not hydrogen, in the presence of an organometallic complex of, as metal, Ni, Co, Ru, Pd or Ir.

    LUBRICANT OIL COMPOSITIONS
    34.
    发明专利

    公开(公告)号:CA2026504A1

    公开(公告)日:1991-03-30

    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.

    PROPYLENE ELASTOMER
    37.
    发明专利

    公开(公告)号:CA2155016C

    公开(公告)日:2005-10-25

    申请号:CA2155016

    申请日:1994-11-29

    Abstract: The novel propylene elastomer according to the invention contains (1) units derived from propylene in amounts of 50 to 95 % by mol and units derived from 1-butene in amounts of 5 to 50 % by mol, and has (2) triad tacticity (mm fraction), determined by the 13C-NMR spectrum (hexachlorobutadiene solution, based on tetramethylsilane), of not less than 90 %, (3) an intrinsic viscosity (in decalin at 135 .degree.C) of 0.1 to 12 dl/g, (4) a molecular weight distribution (Mw/Mn) of not more than 3 and (5) a randomness parameter B value of 1.0 to 1.5, preferably 1.0 to 1.3. In addition, the elastomer desirably has properties that (6) the elastomer has a melting point Tm of 60 to 140 .degree.C, and the melting point Tm and a 1-butene constituent unit content M (% by mol) in the elastomer satisfy the relation -2.6M + 130 .ltoreq. Tm .ltoreq. -2.3M + 155, and (7) a crystallinity C of the elastomer measured by X-ray diffractometry and the 1-butene constituent unit content M (a by mol) satisfy the relation C .gtoreq. -1.5M + 75. Such propylene elastomer is excellent in rigidity, heat resistance, scratch resistance, transparency, heat sealing properties and blocking resistance. The propylene elastomer can be prepared using a specific transition metal compound catalyst.

    PROPYLENE POLYMER COMPOSITIONS
    38.
    发明专利

    公开(公告)号:CA2117699C

    公开(公告)日:2001-05-29

    申请号:CA2117699

    申请日:1994-01-11

    Abstract: A propylene polymer composition comprising a propylene polymer (A1) prepared by using a metallocene catalyst and having a melt flow rate (MFR) of 0.01 to 30 g/10 min and a propylene polymer (A2) prepared by using a metallocene catalyst and having a melt flow rate (MFR) of 30 to 1,000 g/10 min and, if desired, a soft polymer, a ratio [(A2)/(A1)] of the MFR of said propylene polymer (A2) to the MFR of said propylene polymer (A1) being not less than 30. A propylene polymer composition comprising a propylene polymer prepared by using a titanium catalyst and having MFR of 0.01 to 30 g/10 min and the above-mentioned propylene polymer (A2) and, if desired, a soft polymer. A propylene polymer composition comprising a propylene polymer prepared by using a titanium catalyst and having MFR of 0.01 to 50 g/10 min and an ethylene/olefin random copolymer prepared by using a metallocene catalyst. A propylene polymer composition comprising a propylene polymer prepared by using a catalyst containing a specific metallocene compound and at least one synthetic resin selected from a propylene polymer different from the above propylene polymer, an olefin elastomer and an olefin polymer. These propylene polymer compositions are excellent in heat resistance, mechanical strength, tensile elongation at break, etc., and hence they can be favorably used for 291 various structural materials such as those of automobiles and electrical appliances, daily necessaries, various films and sheets.

    39.
    发明专利
    未知

    公开(公告)号:DE69031966T2

    公开(公告)日:1998-06-10

    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.

Patent Agency Ranking