21.
    发明专利
    未知

    公开(公告)号:NO128160B

    公开(公告)日:1973-10-08

    申请号:NO478368

    申请日:1968-11-29

    Applicant: HOECHST AG

    Abstract: 1,245,470. Laminates. FARBWERKE HOECHST A.G. 4 Dec., 1968 [5 Sept., 1967], No. 67605/68. Heading B5N. [Also in Divisions B2 and F2] A vibration damping laminated system comprises two sheets and bonded to the sheets an interlayer comprising a graft polymer of 40 to 80% by weight of methylmethacrylate or a mixture of methylmethacrylate with from 0À1 to 10% by weight of a copolymerizable carboxylic acid, or 60 to 20% by weight of a copolymer formed from a monomer mixture of 30 to 40% by weight of vinyl acetate, 30 to 40% by weight of n-butyl acrylate, 10 to 30% by weight of dibutyl maleate and 5 to 15% by weight of a copolymerizable unsaturated carboxylic acid. Specified carboxylic acids in admixture with methylmethacrylate are acrylic, methacrylic or a mixture thereof and crotonic acid is specified as the carboxylic acid present in the copolymer. The sheets may be of metal. Also disclosed is a plate applied to one surface of which is a layer of a graft polymer as specified above.

    22.
    发明专利
    未知

    公开(公告)号:SE360090B

    公开(公告)日:1973-09-17

    申请号:SE1649368

    申请日:1968-12-03

    Applicant: HOECHST AG

    Abstract: 1,245,470. Laminates. FARBWERKE HOECHST A.G. 4 Dec., 1968 [5 Sept., 1967], No. 67605/68. Heading B5N. [Also in Divisions B2 and F2] A vibration damping laminated system comprises two sheets and bonded to the sheets an interlayer comprising a graft polymer of 40 to 80% by weight of methylmethacrylate or a mixture of methylmethacrylate with from 0À1 to 10% by weight of a copolymerizable carboxylic acid, or 60 to 20% by weight of a copolymer formed from a monomer mixture of 30 to 40% by weight of vinyl acetate, 30 to 40% by weight of n-butyl acrylate, 10 to 30% by weight of dibutyl maleate and 5 to 15% by weight of a copolymerizable unsaturated carboxylic acid. Specified carboxylic acids in admixture with methylmethacrylate are acrylic, methacrylic or a mixture thereof and crotonic acid is specified as the carboxylic acid present in the copolymer. The sheets may be of metal. Also disclosed is a plate applied to one surface of which is a layer of a graft polymer as specified above.

    23.
    发明专利
    未知

    公开(公告)号:DK122181B

    公开(公告)日:1972-01-31

    申请号:DK592868

    申请日:1968-12-04

    Applicant: HOECHST AG

    Abstract: 1,246,996. Vibration damping laminates. FARBWERKE HOECHST A.G. 4 Dec., 1968 [ 6 Dec., 1967], No. 57603/68. Heading B5N. [Also in Divisions B2 and C3] A vibration damping laminated system comprises two plates, e.g. of metal such as steel, bonded together with an interlayer comprising a graft polymer of 40-80% by weight of styrene or a mixture thereof with 0À1-10% by weight based on the styrene of a copolymerizable carboxylic acid, e.g. acrylic and/or methacrylic acid, an 60-20% by weight of a copolymer of 30-40% by weight of vinyl acetate, 30-40% by weight of n-butyl acrylate, 10-30% by weight of di-n-butyl maleate and 5-15% by weight of a copolymerizable unsaturated carboxylic acid, e.g. crotonic acid. The graft polymer may be cross-linked with a compound containing a plurality of epoxide or isocyanate groups. The graft polymer may contain minor amounts of fillers, e.g. heavy spar, silicic acid, graphite, soot or a mixture thereof, and one or more plasticizers. The total thickness of the laminated system may be 1-6 mm., the thickness of the interlayer being 0À1-1 mm. and the ratio of the thickness of the plates being from 1 : 1 to 4 : 1. The graft polymer may be applied to the plates by trowelling, brushing or pouring at an elevated temperature and the system cooled under pressure between rollers. A solution of the copolymer in styrene or styrene and acrylic and/or methacrylic acid mixture containing a polymerization initiator, e.g. tertiary butyl hydroperoxide may be applied between the plates and the laminated system subjected to heating at 60-180‹ C. to effect grafting.

    24.
    发明专利
    未知

    公开(公告)号:DK122179B

    公开(公告)日:1972-01-31

    申请号:DK593268

    申请日:1968-12-04

    Applicant: HOECHST AG

    Abstract: 1,245,470. Laminates. FARBWERKE HOECHST A.G. 4 Dec., 1968 [5 Sept., 1967], No. 67605/68. Heading B5N. [Also in Divisions B2 and F2] A vibration damping laminated system comprises two sheets and bonded to the sheets an interlayer comprising a graft polymer of 40 to 80% by weight of methylmethacrylate or a mixture of methylmethacrylate with from 0À1 to 10% by weight of a copolymerizable carboxylic acid, or 60 to 20% by weight of a copolymer formed from a monomer mixture of 30 to 40% by weight of vinyl acetate, 30 to 40% by weight of n-butyl acrylate, 10 to 30% by weight of dibutyl maleate and 5 to 15% by weight of a copolymerizable unsaturated carboxylic acid. Specified carboxylic acids in admixture with methylmethacrylate are acrylic, methacrylic or a mixture thereof and crotonic acid is specified as the carboxylic acid present in the copolymer. The sheets may be of metal. Also disclosed is a plate applied to one surface of which is a layer of a graft polymer as specified above.

    28.
    发明专利
    未知

    公开(公告)号:SE360099B

    公开(公告)日:1973-09-17

    申请号:SE1650268

    申请日:1968-12-03

    Applicant: HOECHST AG

    Abstract: 1,246,997. Vibration damping laminates. FARBWERKE HOECHST A.G. 4 Dec., 1968 [6 Dec., 1967], No. 57606/68. Heading B5N. [Also in Divisions B2 and C3] A vibration damping laminated system comprises two plates, e.g. of metal such as steel, bonded together with an interlayer comprising a graft polymer of 40-80% by weight of a equimolar mixture of styrene and acrylonitrile on 60-20% by weight of a copolymer of 30-40% by weight of vinyl acetate, 30-40% by weight of 2-ethylhexyl acrylate, 10-30% by weight di-n-butyl maleate and 5-15% by weight of a copolymerizable unsaturated caroxylic acid, e.g. crotonic acid. The graft polymer may be cross-linked with a compound containing a plurality of epoxide or isocyanate groups. The graft polymer may contain minor amounts of fillers, e.g. heavy spar, silicic acid, graphite, soot or a mixture thereof, and one or more plasticizers. The total thickness of the laminated system may be 1-6 mm., the thickness of the interlayer being 0À1-1 mm. and the ratio of the thickness of the plates being from 1 : 1 to 4 : 1. The graft polymer may be applied to the plates by trowelling, brushing or pouring at an elevated temperature and the system cooled under pressure between rollers. A solution of the copolymer in the mixture of styrene and acrylonitrile containing a polymerization initiator, e.g. tertiary butyl hydroperoxide, may be applied between the plates and the laminated system subjected to heating at 60-180‹ C. to effect grafting.

    29.
    发明专利
    未知

    公开(公告)号:SE360098B

    公开(公告)日:1973-09-17

    申请号:SE1650168

    申请日:1968-12-03

    Applicant: HOECHST AG

    Abstract: 1,246,996. Vibration damping laminates. FARBWERKE HOECHST A.G. 4 Dec., 1968 [ 6 Dec., 1967], No. 57603/68. Heading B5N. [Also in Divisions B2 and C3] A vibration damping laminated system comprises two plates, e.g. of metal such as steel, bonded together with an interlayer comprising a graft polymer of 40-80% by weight of styrene or a mixture thereof with 0À1-10% by weight based on the styrene of a copolymerizable carboxylic acid, e.g. acrylic and/or methacrylic acid, an 60-20% by weight of a copolymer of 30-40% by weight of vinyl acetate, 30-40% by weight of n-butyl acrylate, 10-30% by weight of di-n-butyl maleate and 5-15% by weight of a copolymerizable unsaturated carboxylic acid, e.g. crotonic acid. The graft polymer may be cross-linked with a compound containing a plurality of epoxide or isocyanate groups. The graft polymer may contain minor amounts of fillers, e.g. heavy spar, silicic acid, graphite, soot or a mixture thereof, and one or more plasticizers. The total thickness of the laminated system may be 1-6 mm., the thickness of the interlayer being 0À1-1 mm. and the ratio of the thickness of the plates being from 1 : 1 to 4 : 1. The graft polymer may be applied to the plates by trowelling, brushing or pouring at an elevated temperature and the system cooled under pressure between rollers. A solution of the copolymer in styrene or styrene and acrylic and/or methacrylic acid mixture containing a polymerization initiator, e.g. tertiary butyl hydroperoxide may be applied between the plates and the laminated system subjected to heating at 60-180‹ C. to effect grafting.

    30.
    发明专利
    未知

    公开(公告)号:SE360097B

    公开(公告)日:1973-09-17

    申请号:SE1650068

    申请日:1968-12-03

    Applicant: HOECHST AG

    Abstract: 1,247,196. Vibration damping laminates. FARBWERKE HOECHST A.G. 5 Dec., 1968 [6 Dec., 1967], No. 57842/68. Heading B5N. [Also in Divisions B2 and C3] A vibration damping laminated system comprises two plates, e.g. of metal such as steel, bonded together with an interlayer comprising a graft polymer of 40-80% by weight of methyl methacrylate or a mixture thereof with 0À1- 10% by weight based on the methyl methacrylate of a copolymerizable carboxylic acid, e.g. acrylic and/or methacrylic acid, or 60- 20% by weight of a copolymer of 30-40% by weight of vinyl acetate, 30-40% by weight of 2-ethyl hexyl acrylate, 10-30% by weight of di-n-butyl maleate and 5-15% by weight of a copolymerizable unsaturated carboxylic acid, e.g. crotonic acid. The graft polymer may be cross-linked with a compound containing a plurality of epoxide or isocyanate groups. The graft polymer may contain minor amounts of fillers, e.g. heavy spar, silicic acid, graphite, soot or a mixture thereof, and one or more plasticizers. The total thickness of the laminated system may be 1-6 mm., the thickness of the interlayer being 0À1-1 mm. and the ratio of the thickness of the plates being from 1 : 1 to 4 : 1. The graft polymer may be applied to the plates by travelling, brushing or pouring at an elevated temperature and the system cooled under pressure between rollers. A solution of the copolymer in methyl methacrylate or methyl methacrylate and acrylic and/or methacrylic acid mixture containing a polymerization initiator, e.g. tertiary butyl hydroperoxide, may be applied between the plates and the laminated system subjected to heating at 60-180‹ C. to effect grafting.

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