Hot-melt adhesive for manufacturing disposable hygiene products

    公开(公告)号:US12195645B2

    公开(公告)日:2025-01-14

    申请号:US17294241

    申请日:2019-11-05

    Applicant: BOSTIK SA

    Inventor: Naji Hussein

    Abstract: 1) Hot melt adhesive composition comprising: a) from 5% to 50% of a thermoplastic polymer (A) selected from styrene block copolymers and polyolefins; b) from 15% to 60% of a tackifying resin (B); c) from 5% to 30% of a plasticizer (C); and d) from 0.1% to 10% of a salt (D) of a hydroxylated fatty acid comprising from 8 to 24 carbon atoms. 2) Process of manufacturing a laminate, preferably a disposable nonwoven absorbent article, implementing the hot melt adhesive composition.
    3) Process for cleaning the laminating device fouled by solid deposits of the hot melt
    adhesive composition, comprising their manual removal by the operators at room temperature.

    SILYLATED SEALING COMPOSITION WITH IMPROVED ADHESION ON METALLIC SUBSTRATES

    公开(公告)号:US20240191034A1

    公开(公告)日:2024-06-13

    申请号:US17905776

    申请日:2021-03-01

    Applicant: BOSTIK SA

    Inventor: Yichen CAO

    CPC classification number: C08G77/02 C08L83/02 C08G2150/00 C08G2170/00

    Abstract: A moisture curable silylated composition comprising:



    a polymer (A) comprising at least 2 alkoxysilyl terminal groups of formula (I):










    wherein R1 represents a hydrocarbon-based divalent radical comprising from 5 to 15 carbon atoms; R2 represents a C2-C4 alkylene; R3 represents a C1-C6 alkylene; R4 and R5 each represent a C1-C4 alkyl; R6 represents H or a radical comprising 1 to 6 carbon atoms; n is an integer such that Mw of the block of formula —[OR2]n— is 300 to 40000 g/mole; m is an integer different from 0 such that the Mw of the polymer (A) is between 500 to 50000 g/mole, and p is an integer equal to 0, 1 or 2;
    a polymer (B) comprising at least 2 alkoxysilyl terminal groups of formula (II):








    wherein R2, R4, R5, n and p are such as defined for formula (I); and



    an alkoxy modified silsesquioxane (C).

    ADHESIVE TWO-COMPONENT COMPOSITION BASED ON ITACONATE MONOMER

    公开(公告)号:US20240010891A1

    公开(公告)日:2024-01-11

    申请号:US18252965

    申请日:2021-11-29

    Applicant: BOSTIK SA

    CPC classification number: C09J175/16 C08K5/14

    Abstract: The present invention relates to a two-component adhesive composition comprising:



    a component A comprising:

    at least one polyurethane P comprising at least two (meth)acrylate end functions;
    at least one reducing agent; and
    at least one itaconate monomer of following formula (1):












    wherein each of R1 and R2 represents, independently of one another, organic radicals;

    at least one core-shell impact modifier;


    a component B comprising:

    at least one oxidizing agent; and
    optionally at least one (meth)acrylate monomer M1.

    HEAT-CROSSLINKABLE ADHESIVE COMPOSITION FORMING A HEAT-STABLE ADHESIVE SEAL

    公开(公告)号:US20230193098A1

    公开(公告)日:2023-06-22

    申请号:US18067105

    申请日:2022-12-16

    Applicant: BOSTIK SA

    CPC classification number: C09J183/06

    Abstract: A heat-crosslinkable adhesive composition comprises a polymer (A) comprising at least one hydrolysable alkoxysilane group, a silylated copolymer tackifying resin (B′), a non-silylated tackifying resin (C), and a crosslinking catalyst (D). The silylated copolymer tackifying resin comprises a repeating unit (B′1) derived from a silylated olefin monomer, in particular from a silylated (meth)acrylate monomer, and one or more repeating units (B′2) derived from olefin or diolefin monomers included in a petroleum fraction obtained by cracking naphtha and chosen from a C5 fraction, a C9 fraction, dicyclopentadiene. A self-adhesive article comprises a support layer coated with a self-adhesive layer consisting of the heat-crosslinkable adhesive composition in the crosslinked state.

    LOW TACK HOT-MELT PRESSURE SENSITIVE ADHESIVES

    公开(公告)号:US20220325149A1

    公开(公告)日:2022-10-13

    申请号:US17617999

    申请日:2020-07-02

    Applicant: BOSTIK SA

    Abstract: The invention relates to a hot-melt pressure sensitive adhesive composition comprising at least one styrenic block copolymer, at least one tackifying resin, at least one mineral oil and from 4 to 15% by weight of at least one wax selected from the group consisting of paraffin waxes, Fischer-Tropsch waxes, ethylene-vinyl acetate waxes and any mixture thereof, based on the total weight of the hot-melt pressure sensitive adhesive composition. The invention also relates to an article comprising a surface coated with such a hot-melt pressure sensitive adhesive composition, to a use of such a hot-melt pressure sensitive adhesive composition and to a process for preparing such a hot-melt pressure sensitive adhesive composition.

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