62.
    发明专利
    未知

    公开(公告)号:DE19902505A1

    公开(公告)日:2000-07-27

    申请号:DE19902505

    申请日:1999-01-22

    Applicant: BASF AG

    Abstract: Low-fogging catalysts for polyurethane (PU) production, obtained by reacting (a) polymeric compounds containing carboxylic acid and/or anhydride groups with (b) compounds with primary or secondary amino group(s) and/or compounds with tertiary amino group(s) and group(s) which react with acid or anhydride groups. Independent claims are also included for: (i) A process as described above for the production of low-fogging catalysts; (ii) a process for the production of PU by reacting polyisocyanates with compounds containing at least two isocyanate-reactive groups in presence of these catalysts; (iii) polyurethanes obtained by this process.

    64.
    发明专利
    未知

    公开(公告)号:DE59602968D1

    公开(公告)日:1999-10-07

    申请号:DE59602968

    申请日:1996-12-02

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing self-releasing, compact or cellular moulded bodies optionally containing reinforcing agents and made of polyisocyanate polyaddition products by reacting a) organic and/or modified organic polyisocyanates with b) at least one compound with at least two reactive hydrogen atoms and a molecular weight of 500 to 9,000 and optionally c) chain extension and/or cross-linking agents in the presence of d) alkyl and/or alkenyl succinic acid monoamides, -monoamides, poly(alkyl succinic acid)- and/or poly(alkenyl succinic acid)-polyamides, -polyimides, -monoamide monoimides, -polyamide imides, -amide polyimides and- polyamide polyimides or mixtures thereof as internal mould release agents, and also in the presence or absence of e) catalysts, f) blowing agents, g) reinforcing agents, h) auxiliary agents, in an open or closed moulding tool, optionally under compression. The invention also relates to the use of alkyl- and/or alkenyl succinic acid amides and/or imides (d) as internal mould release agents for the preparation of moulded bodies made of polyisocyanate polyaddition products.

    65.
    发明专利
    未知

    公开(公告)号:BR9611984A

    公开(公告)日:1999-02-17

    申请号:BR9611984

    申请日:1996-12-02

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing self-releasing, compact or cellular moulded bodies optionally containing reinforcing agents and made of polyisocyanate polyaddition products by reacting a) organic and/or modified organic polyisocyanates with b) at least one compound with at least two reactive hydrogen atoms and a molecular weight of 500 to 9,000 and optionally c) chain extension and/or cross-linking agents in the presence of d) alkyl and/or alkenyl succinic acid monoamides, -monoamides, poly(alkyl succinic acid)- and/or poly(alkenyl succinic acid)-polyamides, -polyimides, -monoamide monoimides, -polyamide imides, -amide polyimides and- polyamide polyimides or mixtures thereof as internal mould release agents, and also in the presence or absence of e) catalysts, f) blowing agents, g) reinforcing agents, h) auxiliary agents, in an open or closed moulding tool, optionally under compression. The invention also relates to the use of alkyl- and/or alkenyl succinic acid amides and/or imides (d) as internal mould release agents for the preparation of moulded bodies made of polyisocyanate polyaddition products.

    PRODUCTION OF CHLOROFLUOROCARBON-FREE, URETHANE-CONTAINING MOLDINGS HAVING A CELLULAR CORE AND A COMPACTED PERIPHERAL ZONE

    公开(公告)号:CA2074138C

    公开(公告)日:1997-02-11

    申请号:CA2074138

    申请日:1992-07-17

    Applicant: BASF AG

    Abstract: A process for the production of fluorochlorocarbon-free, urethane-containing, softelastic, semirigid or rigid moldings having a cellular core and a compacted peripheral zone and an essentially pore-free, smooth surface involves reacting a) an organic and/or modified organic polyisocyanate with b) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired, c) a low-molecular-weight chain extender and/or cross linking agent, in the presence of d) a blowing agent, e) a catalyst, f) at least one amorphous, microporous silica gel which preferably has a mean pore diameter with a frequency of occurrence of more than 40 % in the range from 0.1 to 10 nm, a pore volume of from 0.15 to 1.8 ml/g and a BET surface area of from 200 to 900 m2/g, and, if desired, further additives and g) assistants, in a closed mold with compaction.

    69.
    发明专利
    未知

    公开(公告)号:MX168974B

    公开(公告)日:1993-06-16

    申请号:MX814687

    申请日:1987-09-08

    Applicant: BASF AG

    Abstract: Disclosed are internal mold release agents for the preparation of molded articles using polyisocyanate addition polymerization, which are comprised of: (A) at least one ketimine, aldimine, enamine, cyclic Schiff base or a mixture of at least two of said compounds; (B) at least one metal salt of an organic carboxylic acid having from 8 to 24 carbon atoms; and (C) optionally including at least one carboxylic acid, organic sulphonic acid, mineral acid, or amidosulphonic acid, and their use in preparing molded articles comprised of polyurethane-plastics, polyurea-plastics, polyurethane-polyurea-plastics, polyurethane-polyurea-polyamide-plastics, or polyurea-polyamide-plastics.

Patent Agency Ranking