191.
    发明专利
    未知

    公开(公告)号:NO952298D0

    公开(公告)日:1995-06-09

    申请号:NO952298

    申请日:1995-06-09

    Abstract: The invention provides inherently tacky, polymeric, organic, solvent-insoluble, solvent dispersible, elastomeric, pressure sensitive adhesive microspheres having pendant hydrophilic polymeric or oligomeric moieties having a degree of polymerization greater than or equal to 2. The microspheres which are sterically stabilized can offer enhanced stability against coagulation caused by alkali, alkali salts, polyelectrolytes and repeated freeze/thaw cycles. The present invention also provides pressure-sensitive adhesives comprising these microspheres including aerosol spray PSAs, coated sheet materials prepared therefrom, and method of making the microspheres.

    193.
    发明专利
    未知

    公开(公告)号:AT61386T

    公开(公告)日:1991-03-15

    申请号:AT87110485

    申请日:1987-07-20

    Abstract: An adhesive comprising a mixture of (A) a mixture of an isocyanate prepolymer and a polyepoxide which is essentially free of hydroxyl groups, and (B) a mixture of a polyol, a urethane catalyst and an epoxy curing catalyst and structures prepared by adhering substrates to one another by means of said adhesive are described.

    MULTI-LINKED STAR-SHAPED POLYMERS AND SYNTHETIC METHODS THERFOR

    公开(公告)号:CA2751573C

    公开(公告)日:2014-05-13

    申请号:CA2751573

    申请日:2010-02-05

    Abstract: A compound of the general formula (I) is provided. Each X, X3, X7, X11 and X15, independently, is O or NR. Each R, if present, is H or a branched or unbranched C1-C15 saturated or unsaturated hydrocarbon group. Each R1, R3, R5, R7, R9, R11, R13 and R15, independently, is a branched or unbranched C1-C15 -saturated or unsaturated hydrocarbon group. Each PA1, PA7, PA11 and PA15, independently, is a residue of a substantially poly(alkylene oxide) polyether or derivative thereof. Each L, L1 and L3, independently, is a linking group being an amine, amide, ether, ester, urea, carbonate, or urethane linkage. Each DHPD is a dihydroxyphenyl derivative. Bioadhesives and polymer blends which include compounds of the invention, as well as methods which use the invention, are also provided. (see above formula)

    NOVEL MATERIAL FORMING SUPRAMOLECULAR STRUCTURES, PROCESS AND USE

    公开(公告)号:CA2569291A1

    公开(公告)日:2007-06-01

    申请号:CA2569291

    申请日:2006-11-27

    Abstract: The invention relates to novel material, forming supramolecular structures below its transition temperature, which contains at least one C=O and/ or C=S group an d at least one N-H, O-H and/ or S-H group and wherein the material has the structure A(-X-B) n (1) wherein A is a cyclic, aromatic and/ or aliphatic group, n being a number of 1 to 4,-X-B is, if n is 2, the same or different, and if n is 3 or 4, the same, partly t he same or different and has one of the structures (2) to (4) -NH-C(Y)-Y-B (2) -NH -C(Y)-NR-B (3) -Y-C(Y)-NH-B (4) with Y being an Oxygen and/ or Sulfur atom, B being an organic group with at least one heteroatom, where the heteroatom is bound to at least two carbon atoms when B is linear or cyclic, and where the heteroatom is bound to at least one carbon atom when B is branched, and R being a Hydrogen atom, a cyclic, aromatic and/ or aliphat ic group or another B group which is the same or different. The material can be made by reacting at least one isocyanate and/ or thioisocyanate with at least one amine, alcohol and/ or thiol. Typically, the material is used first below its transition temperatur e, followed by increasing the temperature to around or above the transition temperature, carrying out a process step and subsequently decrease the temperature below the transition temperature.

Patent Agency Ranking