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    PROCESS FOR THE PREPARATION OF CELLULAR AND NON- CELLULAR POLYURETHANES
    26.
    发明专利
    PROCESS FOR THE PREPARATION OF CELLULAR AND NON- CELLULAR POLYURETHANES 未知

    公开(公告)号：CA1219987A

    公开(公告)日：1987-03-31

    申请号：CA452232

    申请日：1984-04-17

    Applicant: BASF AG

    Inventor： STRAEHLE WOLFGANG ,  BUETHE INGOLF ,  MARX MATTHIAS

    IPC: C07C69/80 ,  C08G18/42 ,  C08G18/48 ,  C08G65/26 ,  C08G65/32 ,  C08G18/14 ,  C08G71/04

    Abstract: PROCESS FOR THE PREPARATION OF CELLULAR OR NON-CELLULAR POLYURETHANES The invention relates to a process for the preparation of cellular or non-cellular polyurethanes through the reaction of organic polyisocyanates with a polyether-polyester polyol component containing di- to tetrafunctional polyether-polyester polyols having hydroxyl numbers of from 10 to 200, which are themselves prepared by esterifying conventional di- to tetrafunctional polyether polyols with carboxylic acid anhydrides, preferably aromatic carboxylic acid anhydrides, in the presence of selected catalysts to form carboxylic acid half esters, and oxyalkylating the resulting carboxylic acid half esters with alkylene oxides in the presence of N-methylimidazole, triethylene diamine, triphenylphosphine or mixtures thereof with thiodlalkylene glycol as catalysts.

    30.
    发明专利
    未知

    公开(公告)号：DK436682A

    公开(公告)日：1982-10-01

    申请号：DK436682

    申请日：1982-10-01

    Applicant: BASF AG

    Inventor： LECHTKEN PETER ,  BUETHE INGOLF ,  BRONSTERT BERND ,  HESSE ANTON ,  HOFFMANN GERHARD ,  JACOBI MANFRED ,  LYNCH JOHN ,  TRIMBORN WERNER ,  VYVIAL RUDOLF

    IPC: B41N20060101 ,  C08F20060101 ,  C08F2/50 ,  C08K20060101 ,  C08K5/53 ,  C09D20060101 ,  G03C20060101 ,  G03F7/028 ,  B41N ,  C08K ,  G03C

    Abstract: Photopolymerizable recording substance which consists of a photoinitiator-containing mixture of at least one low molecular weight compound having at least one photopolymerizable olefinic unsaturated double bond and at least one organic polymeric binding agent, with use being made, as photoinitiator, of acylphosphine oxide compounds of the formula where R1 is an alkyl or cycloalkyl group, an aryl group which is optionally substituted by halogen, alkyl or alkoxy, or an S- or N-containing heterocyclic group, R2 is as R1, with it being possible for R1 and R2 to be identical or different, or is an alkoxy, aryloxy or arylalkoxy group, or R1 and R2 form a ring, R3 is a tertiary alkyl or cycloalkyl group, or a cycloalkyl, aryl or heterocylic group which has the substituents A and B at least in both the o positions in relation to the carbonyl group, which substituents A and B can be identical or different and denote alkyl, alkoxy, alkoxyalkyl, alkylthio, cycloalkyl, aryl or halogen. The recording substance imparts an improved relief structure to the finished print.

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