公开(公告)号：DE2457725A1

公开(公告)日：1976-06-16

申请号：DE2457725

申请日：1974-12-06

Applicant: BASF AG

Inventor： GEHM ROBERT DIPL CHEM DR ,  FALKENSTEIN GEORG DIPL CHEM DR ,  STEIN DIETER DIPL CHEM DR ,  HAAF FRANZ DIPL CHEM DR ,  HEINZ GERHARD DIPL CHEM DR ,  SCHOEN ERNST DIPL CHEM DR

IPC: C08G18/40 ,  C08G18/62 ,  C08G18/63

Abstract: Prepn. of (cellular) polyurethanes is claimed from a mixt. of a) >=1 polyisocyanate, B) >=1 polyhydroxy cpd. of mol. wt. 500-7,000 chosen from polyether- and polyesterpolyols and opt. D) other conventional additives, the novelty being that a polymer (C) is included in the mixt.; C) is an alkoxylated polymer prepd. by reacting 0.1-120 mol. ethylene oxide per mol. of gp. capable of being alkoxylated in (C). Polymers contg. covalently bonded polyhydroxy cpds. are easily obtd. cf. prior art in which either (a) polyhydroxy cpd. and polyisocyanates were reacted or (b) in situ free radical graft polymers contg. polyether-polyols grafted over C-C bonds were used. The polyurethanes have better load capacity, tensile, strength, compression set, and tear strength. Foams with low temp. flexibility may be prepd. with proper choice of (C). As flexible or rigid foams, elastomers or coatings. The foams may be used for upholstery, shoe soles, crash pads, etc.

公开(公告)号：DE2724609A1

公开(公告)日：1978-12-14

申请号：DE2724609

申请日：1977-06-01

Applicant: BASF AG

Inventor： GEHM ROBERT DIPL CHEM DR ,  JARRE WOLFGANG DIPL CHEM DR

IPC: C07C69/80 ,  C08L75/04 ,  C08G18/46

公开(公告)号：DE2638859A1

公开(公告)日：1978-03-02

申请号：DE2638859

申请日：1976-08-28

Applicant: BASF AG

Inventor： STUTZ HERBERT DIPL CHEM DR ,  GEHM ROBERT DIPL CHEM DR

IPC: C08G18/28 ,  C08G18/66

Abstract: Hard, rigid, non-elastomeric, non-cellular polyurethane compositions manufactured by reacting a liquid hydroxylic polyether having an OH equivalent weight of from 50 to 250, a monofunctional hydroxylic polyether having a molecular weight of from 150 to 10,000 and devoid of further functional groups which react with isocyanates, and an organic polyisocyanate, with or without catalysts, auxiliaries and additives.

公开(公告)号：DE2318107A1

公开(公告)日：1974-11-07

申请号：DE2318107

申请日：1973-04-11

Applicant: BASF AG

Inventor： GEHM ROBERT DIPL CHEM DR ,  VOGT HERWART CURT DIPL CHEM DR

IPC: C08G65/30 ,  C08G23/14

公开(公告)号：DE3151041A1

公开(公告)日：1983-07-28

申请号：DE3151041

申请日：1981-12-23

Applicant: BASF AG

Inventor： HORACEK HEINRICH DR ,  GEHM ROBERT DIPL CHEM DR ,  FRANK WOLFRAM DIPL CHEM DR ,  MARX MATTHIAS DIPL CHEM DR

IPC: C08G18/18 ,  C08G18/14

Abstract: The invention describes a process for harmonizing the reaction rates for the formation of urethane and isocyanurate groups during the preparation of polyurethane-polyisocyanurate foams by reacting organic polyisocyanates with polyols in the presence of blowing agents and salts of amines having the formula as catalysts, wherein R stands for an hydrogen atom or a straight chained or branched alkyl radical with 1 to 19 carbon atoms, and n and m are equal or different whole numbers from 2 to 10.

公开(公告)号：DE2820609A1

公开(公告)日：1979-11-22

申请号：DE2820609

申请日：1978-05-11

Applicant: BASF AG

Inventor： DEISSLER HUBERT ,  VOLKERT OTTO DIPL CHEM DR ,  GEHM ROBERT DIPL CHEM DR ,  MARX MATTHIAS DIPL CHEM DR ,  NISSEN DIETMAR DIPL CHEM DR

IPC: C08G18/00 ,  C08J9/00 ,  C08G18/14

公开(公告)号：DE2943689A1

公开(公告)日：1981-05-14

申请号：DE2943689

申请日：1979-10-30

Applicant: BASF AG

Inventor： MARX MATTHIAS DIPL CHEM DR ,  NISSEN DIETMAR DIPL CHEM DR ,  GEHM ROBERT DIPL CHEM DR

IPC: C08G59/18 ,  C08G59/50 ,  C08J3/11 ,  C08L63/00 ,  C08L71/02 ,  C08J3/02

Abstract: Polymer polyol dispersions are prepared by reacting polyepoxides with epoxide resin hardeners in the presence of polyester and polyoxyalkylene polyether polyols.

公开(公告)号：DE2758114A1

公开(公告)日：1979-07-05

申请号：DE2758114

申请日：1977-12-24

Applicant: BASF AG

Inventor： HORACEK HEINRICH DIPL CHEM DR ,  GEHM ROBERT DIPL CHEM DR ,  VOLKERT OTTO DIPL CHEM DR ,  CHAKRABARTI SARBANANDA ,  PAULS MATHIAS ,  WEYLAND PETER DIPL CHEM DR

IPC: C08G18/46 ,  C08G18/50 ,  C08J9/14 ,  C08G18/42 ,  C08G18/10

Abstract: 1. A process for the manufacture of dimensionally stable polyurethane foams by releasing, and curing by interaction with the atmosphere preferably with atmospheric moisture, a storage-stable mixture, which contains blowing agents and is under pressure, of prepolymers which contain isocyanate groups and are based on polyols and organic polyisocyanates, wherein the polyols used are difunctional to octafunctional polyester-polyols and/or polyether-polyols which have a hydroxyl number of from 40 to 500 and contain chemically bonded tertiary amino groups in the polymer chain, or mixtures of such polyester-polyols and/or polyeter-polyols, containing tertiary amino groups, with nitrogen-free polyester-polyols and/or polyether-polyols.

公开(公告)号：DE2656727A1

公开(公告)日：1978-06-29

申请号：DE2656727

申请日：1976-12-15

Applicant: BASF AG

Inventor： GEHM ROBERT DIPL CHEM DR ,  BAUMANN KARL-HEINZ DIPL ING DR ,  HARDER WOLFGANG DIPL CHEM DR

IPC: C08G65/02 ,  C08G65/26 ,  C08G65/30 ,  C08G65/329 ,  C08G65/00 ,  C07C43/11

Abstract: The immediate stoppage of a polyoxalkylation reaction in presence of a basic catalyst is effected by adding to the reaction mixt. (a) an alkylating agent, (b) a carboxylic acid halide, (c) a sulphonic acid halide, (d) a halogen deriv of methane and/or (e) a low mol.wt. organic cpd. contg. active halogen atoms. The blocking agents (one or more) are used to stop the polyaddn. of alkylene oxides (e.g. ethylene oxide) to low mol.wt. cpds. contg. active hydrogen (e.g. water, NH4OH, amines etc.) in presence of basic catalysts (e.g. Na methylate, KOH). Because of their rapid reaction, they prevent pollution of the atmosphere or possible explosion of the polymerisation vessel should the process get out of hand because of, e.g. too high a polymerisation temp. or pressure or too high an alkylene oxide content.