PRODUCTION OF ORGANIC SILANE
    11.
    发明专利

    公开(公告)号:JPH11152289A

    公开(公告)日:1999-06-08

    申请号:JP23744898

    申请日:1998-08-24

    Applicant: GEN ELECTRIC

    Abstract: PROBLEM TO BE SOLVED: To safely produce a slightly colored organoalkoxysilane in the presence of a low toxic phase transfer catalyst. SOLUTION: This method for producing an organic silane comprises allowing a haloalkylalkoxysilane such as chloropropyltrimethoxysilane to react with a reactant comprising either of a cyanate, the ammonium salt of a 2-20C organic acid, the alkali metal salt of a 2-20C organic acid and their mixtures at a reaction temperature of about 80 deg.C to about 200 deg.C to produce a nitrogen or oxygen- containing organoalkoxysilane such as an isocyanurate or fumarate. Therein, the reaction is performed in the presence of a guanidium salt such as hexaethylguanidium chloride as a catalyst. The elevation of the reaction temperature due to the exothermic reaction is about 0 deg.C to about 120 deg.C. A preferable cyanate is sodium cyanate.

    SILANOL CONDENSATION CATALYZED WITH PERALKYLATED PHOSPHAZENE BASE

    公开(公告)号:JPH107802A

    公开(公告)日:1998-01-13

    申请号:JP7870497

    申请日:1997-03-31

    Applicant: GEN ELECTRIC

    Abstract: PROBLEM TO BE SOLVED: To enable an improvement in a rate for initiating the polycondensation and the conversion of a silanol-containing organosiloxane into a high-molecular weight fluid or a gum by bringing the silanol-containing organosiloxane into contact with a specific catalyst at a temperature under a pressure within specific ranges. SOLUTION: (A) A silanol-containing organosiloxane is brought into contact with (B) a peralkylated phosphazene base of preferably the formula [R is a 1-4C alkyl; R is a 1-10C alkyl; (n) is 2 or 3] in an amount effective in carrying out the polycondensation of the component A at a temperature within the range of about 0-200 deg.C under a pressure within the range of up to about 350Torr to thereby conduct the polycondensation reaction. The pressure when carrying out the reaction is preferably within the range of 0.01-100Torr and more preferably within the range of 0.01-5.0Torr. The component A is preferably polydimethylsiloxane and the component B is preferably 1-t-butyl-4,4,4- tris-(dimethylamino)-2,2-bis[tris-(dimethylamino)-phosphoranylideneami no]-2λ ,4λ - catenadi(phosphazene), etc.

    ADHESION ENHANCING ADDITIVE FOR RELEASE COATING COMPOSITION

    公开(公告)号:JP2001254053A

    公开(公告)日:2001-09-18

    申请号:JP2000388009

    申请日:2000-12-21

    Applicant: GEN ELECTRIC

    Abstract: PROBLEM TO BE SOLVED: To provide a release coating composition containing an additive useful for fixing uniformly on a substrate, especially on a plastic film. SOLUTION: The curable coating composition comprises (a) a cationically curable functionalized polyorganosiloxane; (b) a photopolymerization initiator; and (c) an anchorage additive having the following formula (1): [wherein, R1 to R3 R7 to R9 are independently alkyl, alkoxy, aryl, aryloxy or alkenyl hydrocarbon or halohydrocarbon groups having 1 to 20 carbon atoms; R4 and R6 are independently alkyl, aryl or alkenyl hydrocarbon or halohydrocarbon group having 1 to 20 carbon atoms; and R5 is an alkyl, aryl or alkenyl hydrocarbon or halohydrocarbon groups having 1 to 20 carbon atoms]. The composition gives a releasably coated, cure film, especially on a plastic substrate, showing a friction rubbed-off amount less than other coated films.

    LIQUID INJECTION MOLDABLE SILICONE ELASTOMER ADHERABLE WITHOUT PRIMER

    公开(公告)号:JPH11323134A

    公开(公告)日:1999-11-26

    申请号:JP4245399

    申请日:1999-02-22

    Applicant: GEN ELECTRIC

    Abstract: PROBLEM TO BE SOLVED: To obtain a liq. injection moldable silicone elastomer compsn. which exhibits a low compression set, adhesiveness without using a primer, and easiness in peeling by compounding a silicone elastomer, a cationic org. nitrogen compd. salt, bis(trimethoxysilylpropyl) fumarate, and a specific silanol-terminated polymer so that the resulting elastomer compsn. has specified physical properties. SOLUTION: A silanol-terminated polymer represented by the formula (wherein RA , RA , RA , and RA are each a 1-40C org. group; RA is a 2-40C olefinic org. group; y is 0-50; and x is 0-100) is used. This polymer is soluble in the objective curable elastomer compsn., exhibits a lower solubility in the elastomer compsn. after cured than the solubility in the elastomer compsn. before cured, and hence contains a silicone oozing out of the elastomer compsn. after cured. Examples of the cation of the cationic org. nitrogen compd. are H, a monovalent cation bonded to an org. group, and a cation of a mono- or polycyclic heterocyclic compd.

    BIFUNCTIONAL SILOXANE COMPOUND
    18.
    发明专利

    公开(公告)号:JPH11315084A

    公开(公告)日:1999-11-16

    申请号:JP27685898

    申请日:1998-09-30

    Applicant: GEN ELECTRIC

    Abstract: PROBLEM TO BE SOLVED: To obtain a bifunctional siloxane compound which functions as an alcohol scavenger in an one-pack type alkoxy-curing room temperature vulcanizable silicone composition and in which an alcohol reaction product functions as an adhesion promoter. SOLUTION: This silicon-containing compound is obtained by reacting an aminoalkoxysilane with a polymeric diorganosiloxane in the presence of catalytic amounts of an acid compound, preferably carboxylic acid (e.g. formic acid or acetic acid) and reacting the resultant compound with di(trimethylsilyl) amine in the presence of (CH3 )3 SiCl or other acidic catalyst (e.g. an ammonium salt of Broensted acid or strong Broensted acid). The silicon-containing compound contains a monofunctional group having a structure of the formula [Z is SiR"3 , (CH2 )p (CR R )m-p NHt (SiR"3 )2-t or the like; R , R or R" are each a 1-40C monovalent hydrocarbon; (t) is 0-2; (m) is 1-8; (p) is 1-1,000; (d) is 1-1,000].

    PRODUCTION OF REACTION PRODUCT OF PHOSPHORUS PENTA-CHLORIDE AND AMMONIUM CHLORIDE

    公开(公告)号:JPH1029808A

    公开(公告)日:1998-02-03

    申请号:JP7870697

    申请日:1997-03-31

    Applicant: GEN ELECTRIC

    Abstract: PROBLEM TO BE SOLVED: To obtain a phosphorus-nitrogen product by an economically and environmentally approved method by using supercritical carbon dioxide in place of a usually used organic solvent for reaction acceleration in the production of the phosphorus-nitrogen product such as a linear phosphorus chloride nitride by the reaction of phosphorus pentachloride with ammonium chloride. SOLUTION: The phosphorus-nitrogen product is obtained by allowing phosphorus pentachloride to react with ammonium chloride in the molar ratio of 1.5:1 to 5.0:1 under a substantially anhydrous condition at a temp exceeding 110 deg.C to a lower temp. then the decomposition temp. of any reaction material or reaction product (usually >=140 deg.C) in the presence of a transition metal compound of the effective amount of a catalyst in the presence of the sufficient quantity of carbon dioxide to keep a reaction pressure of 80-350atm. An organic silicone material is condensed or equilibrated by bring the organic silicon material into contact with the phosphorus-nitrogen product under a reaction promoted condition.

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