31.
    发明专利
    未知

    公开(公告)号:AT283877T

    公开(公告)日:2004-12-15

    申请号:AT98117893

    申请日:1998-09-22

    Applicant: BASF AG

    Abstract: Storage-stable emulsion, used in the manufacture of fine celled hard foamed materials, contains a polyester alcohol propellant of specified formula as emulsifier. Emulsion contains: (a) compounds containing hydrogen atoms reactive towards isocyanates; (b) a polyester alcohol propellant of formula (I) as emulsifier; and (c) usual polyurethane catalysts, auxiliary aids and/or additives. (b) is emulsified in components (b) and (c). m = 0-15; n = 0-1; o = 0-15; p = 0-1; q = 0-15; r = 0-1; s = 0-15; t = 0-1; u = 0-10; v = 0-15; x = 1-5; y = 1-4 or mixtures between 1-3 with r + n is not 0; R1 = aliphatic structure based on the structure of multivalent alcohols, preferably ethylene glycol, diethylene glycol, triethylene glycol 1,2-propylene glycol, and dipropylene glycol; 1,4-butane diol, 1,6-hexane diol, neopentyl glycol, 1,3-butane diol, trimethylol propane, trimethylol ethane, glycerin, pentaerythrite; R2 = polycarboxylic acid without COOH groups, e.g. adipic acid, terephthalic acid, or o-phthalic acid; and R3 = alcohol as in R1.

    36.
    发明专利
    未知

    公开(公告)号:DE19742011A1

    公开(公告)日:1999-03-25

    申请号:DE19742011

    申请日:1997-09-24

    Applicant: BASF AG

    Abstract: Emulsions containing polyether alcohols are used in the production of hard foams based on isocyanates to improve the temperature stability of the foams. Storage-stable halogen-free emulsions used in the production of hard foams based on isocyanates contain: (a) compounds containing hydrogen atoms reactive towards isocyanate groups; (b) water; (c) halogen-free propellants; and optionally (d) usual auxiliary aids and/or additives. (a) is used in an amount of 0.2-80 wt.% and has a functionality of more than 1.5, and an OH number of 10-100 mg KOH/g. (c) consists of 3-10 C hydrocarbons. Independent claims are also included for: (1) the production of the hard foams described; (2) the foams, and (3) the use of the polyether alcohols described.

    OPEN-CELLED RIGID FOAMS BASED ON ISOCYANATE

    公开(公告)号:CA2245009A1

    公开(公告)日:1999-03-24

    申请号:CA2245009

    申请日:1998-09-23

    Applicant: BASF AG

    Abstract: In a process for producing open-celled rigid foams by reacting a) polyisocyanates with b) compounds containing hydrogen atoms which are reactive toward isocyanates, in the presence of c) water, d) if desired, organic compounds acting as physical blowing agents, e) catalysts, auxiliaries and/or additives, the compounds containing reactive hydrogen atoms used are substances having the structure I: where m is 0 - 15 n is 0 - 1 o is 0 - 15 p is 0 - 1 q is 0 - 15 r is 0 - 1 s is 0 - 15 t is 0 - 1 u is 0 - 10 v is 0 - 15 x is 1 - 5 y is 1 - 4 or mixtures of 1 - 3 where r + n ~ 0 z is 0 - 3 z i is 0.1 -3 R1 is an aliphatic structure without OH groups based on the structure of polyhydric alcohols, preferably ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol and dipropylene glycol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, 1,3-butanediol, trimethylolpropane, trimethylolethane, glycerol, pentaerythritol, where these substances can also be used in the esterification as any mixture among one another and R1 can therefore also be a mixture of the corresponding structures, R2 is the radical of a polycarboxylic acid without COOH groups, eg. adipic acid, terephthalic acid, o-phthalic acid, R3 is an alcohol radical like R1.

    40.
    发明专利
    未知

    公开(公告)号:DE59812630D1

    公开(公告)日:2005-04-14

    申请号:DE59812630

    申请日:1998-09-22

    Applicant: BASF AG

    Abstract: Emulsions containing polyether alcohols are used in the production of hard foams based on isocyanates to improve the temperature stability of the foams. Storage-stable halogen-free emulsions used in the production of hard foams based on isocyanates contain: (a) compounds containing hydrogen atoms reactive towards isocyanate groups; (b) water; (c) halogen-free propellants; and optionally (d) usual auxiliary aids and/or additives. (a) is used in an amount of 0.2-80 wt.% and has a functionality of more than 1.5, and an OH number of 10-100 mg KOH/g. (c) consists of 3-10 C hydrocarbons. Independent claims are also included for: (1) the production of the hard foams described; (2) the foams, and (3) the use of the polyether alcohols described.

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