POLYCARBODIIMIDE COMPOUND, AQUEOUS RESIN COMPOSITION AND FOOD PACKAGING CONTAINER

    公开(公告)号:EP4053233A1

    公开(公告)日:2022-09-07

    申请号:EP20881625.6

    申请日:2020-10-19

    Abstract: Provided are a polycarbodiimide compound that enables an aqueous resin composition capable of forming a coating (layer) having water resistance and adhesion that can withstand use for food packaging to be obtained, an aqueous resin composition containing the polycarbodiimide compound, and a food packaging having a layer formed of the aqueous resin composition. A polycarbodiimide compound (A) represented by formula (1) below,

    wherein R 1 represents a residue obtained by removing a functional group capable of reacting with isocyanate from a hydrophilic compound having the functional group capable of reacting with isocyanate, R 2 represents a divalent residue obtained by removing an isocyanate group from an aliphatic diisocyanate compound, and R 3 represents a divalent residue obtained by removing a hydroxyl group from a glycol compound having 2 or 3 carbon atoms; X represents a group that is formed by reaction between the hydrophilic compound and the aliphatic diisocyanate compound; n1 represents a number of 1 to 10, n2 represents a number of 1 to 10, and p represents a number of 2 to 4; and a plurality of R 1 and R 2 each may be the same or different.

    MATERIAL FOR PRESSURE-SENSITIVE ADHESIVE, METHOD FOR PRODUCING PRESSURE-SENSITIVE ADHESIVE, PRESSURE-SENSITIVE ADHESIVE, MULTILAYER FILM, AND PACKAGE

    公开(公告)号:EP3940036A3

    公开(公告)日:2022-08-03

    申请号:EP21184411.3

    申请日:2021-07-08

    Abstract: Problem to be solved:
    Provided is a material for a pressure-sensitive adhesive which has a high adhesive strength and is capable of forming a pressure-sensitive adhesive layer excellent in film appearance.
    Solution:
    The material for a pressure-sensitive adhesive contains composition C in a particulate form including thermoplastic elastomer A, and composition F in a particulate form including thermoplastic elastomer D and tackifier E, wherein the condition (2) is satisfied, an adhesive strength of the material for a pressure-sensitive adhesive is larger than that of the composition C and the composition F, wherein x represents a mass ratio (thermoplastic elastomer(s) / thermoplastic elastomer(s) + tackifier(s)) of the material for a pressure-sensitive adhesive; α represents a mass ratio (thermoplastic elastomer(s) / thermoplastic elastomer(s) + tackifier(s)) of the composition C; and β represents a mass ratio (thermoplastic elastomer(s) / thermoplastic elastomer(s) + tackifier(s)) of the composition F, and the material for a pressure-sensitive adhesive satisfies the expression (1) and the condition (13): β a ratio of the total mass of the tackifier(s) to the total mass of the thermoplastic elastomer(s) in the composition F is more than 1.5 and 3.0 or less; a ratio of the MFR value of the composition F to the MFR value of the composition C is 10 or more and 100 or less.

    ADHESIVE TAPE
    44.
    发明公开
    ADHESIVE TAPE 审中-公开

    公开(公告)号:EP4011616A1

    公开(公告)日:2022-06-15

    申请号:EP20850554.5

    申请日:2020-07-28

    Abstract: The present invention provides a pressure-sensitive adhesive tape, including: a base material; and a pressure-sensitive adhesive layer arranged on at least one side of the base material, wherein the pressure-sensitive adhesive layer contains thermally expandable microspheres and a pressure-sensitive adhesive, wherein the thermally expandable microspheres are each formed of a shell and a volatile substance contained inside the shell, and wherein a resin forming the shell contains a constituent unit having a carboxyl group. In one embodiment, the resin forming the shell has a glass transition temperature (Tg) of 120°C or more.

    BONDING FILM, TAPE FOR WAFER PROCESSING, METHOD FOR PRODUCING BONDED OBJECT, AND BONDED OBJECT AND PASTED OBJECT

    公开(公告)号:EP4001373A1

    公开(公告)日:2022-05-25

    申请号:EP20841520.8

    申请日:2020-07-01

    Abstract: Provided are a bonding film that has sufficient connection heat resistance and high reliability, enables satisfactory bonding to a substrate irrespective of the type of an electrode of a semiconductor element, and makes a bonding step simple and easy; a tape for wafer processing; a method for producing a bonded body; a bonded body; and a pasted body.
    Disclosed is a bonding film 13 for bonding a semiconductor element 2 and a substrate 40, the bonding film having an electroconductive bonding layer 13a formed by molding an electroconductive paste including metal fine particles (P) into a film form; and a tack layer 13b having tackiness and laminated on the electroconductive bonding layer 13a, wherein the tack layer 13b includes 0.1% to 1.0% by mass of metal fine particles (M) with respect to the metal fine particles (P) in the electroconductive bonding layer 13a, and the metal fine particles (M) have a melting point of 250°C or lower.

    LIQUID-REPELLENT HEAT SEALABLE FILM AND COATING AGENT

    公开(公告)号:EP3950150A1

    公开(公告)日:2022-02-09

    申请号:EP20781854.3

    申请日:2020-03-12

    Abstract: The present invention is a liquid-repellent heat sealable film which exhibits excellent liquid repellency and excellent heat sealability, while having durability, and which is provided with a resin layer that is formed on at least one surface of a base material by means of coating, and a large number of oxide fine particles that are adhering to the surface of the resin layer. The resin layer has a recessed and projected structure that is formed by a plurality of particulate resins having heat scalability, said particulate resins being joined with each other and also joined with the base material, while maintaining the shape of particles; and the oxide fine particles are adhering to the surfaces of the particulate resins and are exposed to the outside without being buried in the resins.

    MATERIAL FOR PRESSURE-SENSITIVE ADHESIVE, METHOD FOR PRODUCING PRESSURE-SENSITIVE ADHESIVE, PRESSURE-SENSITIVE ADHESIVE, MULTILAYER FILM, AND PACKAGE

    公开(公告)号:EP3940036A2

    公开(公告)日:2022-01-19

    申请号:EP21184411.3

    申请日:2021-07-08

    Abstract: Problem to be solved:
    Provided is a material for a pressure-sensitive adhesive which has a high adhesive strength and is capable of forming a pressure-sensitive adhesive layer excellent in film appearance.
    Solution:
    The material for a pressure-sensitive adhesive contains composition C in a particulate form including thermoplastic elastomer A, and composition F in a particulate form including thermoplastic elastomer D and tackifier E, wherein the condition (2) is satisfied, an adhesive strength of the material for a pressure-sensitive adhesive is larger than that of the composition C and the composition F, wherein x represents a mass ratio (thermoplastic elastomer(s) / thermoplastic elastomer(s) + tackifier(s)) of the material for a pressure-sensitive adhesive; α represents a mass ratio (thermoplastic elastomer(s) / thermoplastic elastomer(s) + tackifier(s)) of the composition C; and β represents a mass ratio (thermoplastic elastomer(s) / thermoplastic elastomer(s) + tackifier(s)) of the composition F, and the material for a pressure-sensitive adhesive satisfies the expression (1) and the condition (13): β a ratio of the total mass of the tackifier(s) to the total mass of the thermoplastic elastomer(s) in the composition F is more than 1.5 and 3.0 or less; a ratio of the MFR value of the composition F to the MFR value of the composition C is 10 or more and 100 or less.

    SULFUR-CONTAINING SILANE COMPOUND AND COMPOSITION THEREOF

    公开(公告)号:EP3932692A1

    公开(公告)日:2022-01-05

    申请号:EP20763075.7

    申请日:2020-02-25

    Abstract: [Problem to be Solved]
    To provide a sulfur-containing silane compound for obtaining a cross-linked product which does not generate poor dispersion or adhesion between an organic polymer material and an inorganic material and exhibits excellent viscoelastic properties or adhesive properties, or a composition comprising the same.
    [Means for solving the problem]
    A sulfur-containing silane compound represented by formula (1):

    wherein R 1 , R 2 , and R 3 each independently represents a hydrocarbon group optionally containing an oxygen atom or a nitrogen atom, or a hydrogen atom;
    L represents a hydrocarbon group optionally containing at least one hetero atom selected from the group consisting of nitrogen, oxygen, and sulfur;
    a is an integer of 0 or 1;
    b is an integer of 0 or 1;
    c is each independently an integer of 0 or 1;
    d is each independently an integer of 0 or 1;
    e is an integer from 0 to 5;
    R 4 , R 5 , R 6 , and R 7 represent hydrogen, or one of R 4 or R 5 and R 6 or R 7 may form a cross-linked structure represented by -(CH 2 ) f -, and f is an integer from 1 to 5;
    R 8 , R 9 , R 10 and R 11 represent hydrogen, or one of R 8 or R 9 and R 10 or R 11 may form a cross-linked structure represented by -(CH 2 ) g -, and g is an integer from 1 to 5;
    R 16 is a hydrogen atom, a methyl group or an alkyl group having 2 to 8 carbons, and R 17 is a hydrogen atom, a methyl group or an alkyl group having 2 to 10 carbons, where R 12 and R 13 bond to each other via sulfur of 1 to 10 atoms to form a ring, and R 14 , R 15 , and R 18 are hydrogen atoms, or R 14 and R 15 bond to each other via sulfur of 1 to 10 atoms to form a ring, and R 12 , R 13 , and R 18 are hydrogen atoms.

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