SEALING METHOD OF OPENING IN STRUCTURAL MEMBER OF STRUCTURE

    公开(公告)号:JPH10152915A

    公开(公告)日:1998-06-09

    申请号:JP29854997

    申请日:1997-10-30

    Applicant: DOW CORNING

    Abstract: PROBLEM TO BE SOLVED: To provide a method for sealing an opening section in a structural member of a structure. SOLUTION: A method for sealing an opening section in a structural member of a structure in order to decrease the volume of smoke passing through the opening section is to substantially fill the opening section in the structural member with a bearing material so that the infilled opening section is formed. In that case, the covering of a silicone composition having 1000-120,000mPa/s measured at 24 deg.C with 2.5rpm is applied to the infilled opening section, the structural member adjacent to the infilled opening section and an optional object passing through the structural member. Then, the silicone composition is solidified, it is made to adhere to the bearing material in the infilled opening section, adjacent structural member and optional object passing through them, and the covering is a continuous elastomer coating with the minimum thickness of 0.25mm having at least ±3% of movability, the infilled opening section is sealed therewith, and it reduces the volume of smoke passing through the infilled opening section.

    WATER-BASE SILICONE EMULSION
    2.
    发明专利

    公开(公告)号:JPH10140136A

    公开(公告)日:1998-05-26

    申请号:JP29883897

    申请日:1997-10-30

    Applicant: DOW CORNING

    Abstract: PROBLEM TO BE SOLVED: To obtain a water-base silicone emulsion which, when dehydrated, forms an elastomer with improved resistances to smoke and fire by selecting a water-base emulsion which contains a disperse phase (A) contg. a product formed from materials including a specific siloxane polymer and a crosslinker selected from among siloxanes, silane compds., etc., water (B), a surfactant (C), and a filler (D). SOLUTION: This emulsion forms an elastomer when dehydrated and contains a disperse phase (A) contg. a product formed from materials including 100 pts.wt. diorganosiloxane polymer (i) and 0.1-20 pts.wt. crosslinker (ii) selected from among linear aminoxy-functional siloxanes represented by the formula (wherein R and R' are each a 1-8C alkyl; (m) is an integer of 1-20; and (n) is an integer of 3-7), etc., and partial hydrolyzates thereof, 50-300 pts.wt. water (B), 0.5-10 pts.wt. anionic or nonionic surfactant (C), and 60-120 pts.wt. filler (D) (e.g. aluminum trihydrate).

    ULTRA-BRANCHED POLYMER CONTAINING SILICON ATOM

    公开(公告)号:JP2000044687A

    公开(公告)日:2000-02-15

    申请号:JP20205399

    申请日:1999-07-15

    Applicant: DOW CORNING

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject polymer having a low viscosity and a high functional property even having a high molecular weight, and useful for strengthening a resin, curing of a polysiloxane, a defoaming agent, a raw dissolving agent, a carrier agent and an admixing agent, etc., by polymerizing an organic silicon compound containing a carbinol group and an alkoxy group. SOLUTION: This ultra-branched polymer containing silicon atom is obtained by polymerizing an organic silicon compound of preferably the formula [R and R' are each an alkyl or an aryl; X is an organic group containing an alcoholic group; (a) and (b) are each 1-3] containing (i) one carbinol group and at least 2 alkoxy groups or (ii) one alkoxy group and at least 2 carbinol groups, and preferably removing the alcohol produced as a by-product. The organic silicon compound is preferably a modified amino functional organic silicon compound obtained by reacting a precursor selected from an amino functional silane or an amino functional polysiloxane with a carbonic acid derivative or a cyclic lactone.

    NEUTRALIZATION OF POLYORGANOSILOXANE MIXTURE

    公开(公告)号:JPH11181096A

    公开(公告)日:1999-07-06

    申请号:JP27536998

    申请日:1998-09-29

    Applicant: DOW CORNING

    Abstract: PROBLEM TO BE SOLVED: To provide a method for neutralizing an acid-containing polyorganosiloxane mixture. SOLUTION: This method for neutralizing a polyorganosiloxane mixture comprises the following three consecutive steps wherein: (A) a mixture comprising polyorganosiloxanes and acid(s) is contacted with a neutralizing amount of a solid organic base at a temperature higher than the melting point of the solid organic base to form a molten organic base to effect formation of an insoluble adduct of the acid(s) and the molten organic base; (B) the mixture temperature is lowered to solidify the remaining molten organic base to a remaining solid organic base; and (C) the insoluble adduct and the remaining solid organic base are separated from the above mixture.

    9.
    发明专利
    未知

    公开(公告)号:DE69628714D1

    公开(公告)日:2003-07-24

    申请号:DE69628714

    申请日:1996-10-30

    Applicant: DOW CORNING

    Abstract: A crosslinked polymer dispersion comprising a preformed polymer, selected from the group consisting of silicon modified organic polymers, mixtures of silicon modified organic polymers, mixtures of silicon modified organic polymer(s) with regular organic polymers, mixtures of silicon modified organic polymer(s) with siloxane polymers, mixtures of organic polymers bearing alkenyl groups with siloxane polymers, mixtures of organic polymers bearing alkenyl groups with silicon modified organic polymers, mixtures of the above polymers and mixtures of the above polymer(s) with organic plasticizers or solvents.

    10.
    发明专利
    未知

    公开(公告)号:DE69619051T2

    公开(公告)日:2002-09-26

    申请号:DE69619051

    申请日:1996-09-23

    Applicant: DOW CORNING

    Abstract: A method of hydrophobicising a filler comprises: (i) contacting a filler of inorganic pigments, metal oxides, metal hydroxides or silicate minerals, with an oxa-sila-cycloalkane in an amt. sufficient for at least a portion of the hydroxyl functionality on the filler to be replaced with carbinol functionality. Also claimed are: (1) a filler prepd. by the above method; and (2) a filler having a surface contg. carbinol functionality of formula (I): R' = 1-6C alkyl, aryl, aralkyl, alkaryl or halohydrocarbon; and R" = -CH2CH(CH3)CH2-, -CH2CH2CH2-, -CH(C6H5)CH2CH2- or -CH2CH2CH2CH2-.

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