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    Method for producing polyurethane hard foams
    16.
    发明专利
    Method for producing polyurethane hard foams 未知

    公开(公告)号：AU2013269724A1

    公开(公告)日：2014-12-18

    申请号：AU2013269724

    申请日：2013-05-29

    Applicant: BASF SE

    Inventor： FABISIAK ROLAND ,  KAMPF GUNNAR ,  SCHON LARS ,  JACOBMEIER OLAF

    IPC: C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/76

    Abstract: The invention relates to a method for producing polyurethane hard foams by reacting: A) one or more organic polyisocyanates; B) one or more polyester polyols; C) optionally one or more polyether polyols; D) a fire retardant mixture; E) additional auxiliary agents or additives; F) one or more propellants; and G) catalysts, characterized in that the fire retardant mixture D) contains d1) 10 to 90 wt%, relative to the quantity of the fire retardant mixture, of a fire retardant with a boiling point less than or equal to 220°C, and d2) 10 to 90 wt%, relative to the quantity of the fire retardant mixture, of a phosphorus-containing fire retardant with a boiling point above 220°C, this sum of components d1 ) and d2) yielding 100 wt%.

    Methods for producing composite elements based on foams based on isocyanate
    17.
    发明专利
    Methods for producing composite elements based on foams based on isocyanate 未知

    公开(公告)号：AU2008337524A1

    公开(公告)日：2009-06-25

    申请号：AU2008337524

    申请日：2008-12-15

    Applicant: BASF SE

    Inventor： SCHAPER BERND ,  HENSIEK RAINER ,  FABISIAK ROLAND ,  SCHON LARS ,  HUNTEMANN PETER ,  VIERECK RUEDIGER ,  THOMAS MARIA

    IPC: B05C5/02 ,  B29C31/04 ,  B29C44/46 ,  B29C47/70 ,  B29C48/305

    Abstract: The method for producing composite bodies, which comprise a cover layer (b) and a hard foam (a) based on isocyanate, comprises continuously moving the cover layer and applying the starting material for the hard foam to the cover layer using fixed tubes (c), which are attached parallel to the cover layer plane and perpendicular to the movement direction to the cover layer and are provided with openings (f) so that they form a straight line. The tubes extend over 80% of the width of the cover layer, where an area of equal width is not covered by the tube at the edges of the cover layer. The method for producing composite bodies, which comprise a cover layer (b) and a hard foam (a) based on isocyanate, comprises continuously moving the cover layer and applying the starting material for the hard foam to the cover layer using fixed tubes (c), which are attached parallel to the cover layer plane and perpendicular to the movement direction to the cover layer and are provided with openings (f) so that they form a straight line. The tubes extend over 80% of the width of the cover layer, where an area of equal width is not covered by the tube at the edges of the cover layer. The tube has a height of 5-30 cm above the cover layer and a diameter of 0.2-5 cm. The inner diameter of the tube is constant from the center to the edges of the tube. The tube is arranged so that the strength of the wall of the tube decreases from the place of the supply of the raw material for the hard foam to their ends in such a way that the ratio of the length of the openings between the place of the supply and the end of the tube is 1.1-20. The length of the openings decreases with one tube from an exterior to the other one, if the raw material is supplied to a side into the tube. The liquid raw material is supplied from the middle to each tube or is supplied at the edge of each tube. The diameter of the openings is 0.5-10 mm. The distance between the openings is 5-200 mm. The diameter and the distance of the openings are equal to the entire length of the tube. The number of openings of each tube is >= 2. The mixing of the components of the liquid raw material takes place in a mixer, which is connected with tubes by supply lines (d, e). Each tube is connected exactly with one supply line. The supply has a diameter of 4-30 mm. The hard foam contains isocyanurate groups. The viscosity of the liquid raw material is 50-2000 mPa s at 25[deg] C. The quantity of the liquid raw material applied on the cover layer is 2-100 kg/minute. An independent claim is included for a device for applying liquid reaction mixtures on a cover layer.

    PRODUCING RIGID POLYURETHANE FOAMS
    20.
    发明专利
    PRODUCING RIGID POLYURETHANE FOAMS 未知

    公开(公告)号：CA2875176C

    公开(公告)日：2020-02-18

    申请号：CA2875176

    申请日：2013-05-29

    Applicant: BASF SE

    Inventor： FABISIAK ROLAND ,  KAMPF GUNNAR ,  SCHON LARS ,  JACOBMEIER OLAF

    IPC: C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/76

    Abstract: The invention relates to a process for producing rigid polyurethane foams by reaction of A) one or more organic polyisocyanates, B) one or more polyester polyols, C) optionally one or more polyether polyols, D) a flame-retardant mixture, E) further auxiliaries or addition agents, F) one or more blowing agents, and also G) catalysts, wherein said flame-retardant mixture D) comprises d1) 10 to 90 wt%, based on the amount of flame-retardant mixture, of a flame retardant having a boiling point of not more than 220°C, and d2) 10 to 90 wt%, based on the amount of flame-retardant mixture, of a phosphorus-containing flame retardant having a boiling point of above 220°C, wherein said components d1) and d2) total 100 wt%.

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