TWO-PART ADHESIVE COMPOSITION THAT UNDERGOES A VISUAL CHANGE WHEN CURED

    公开(公告)号:WO2020136511A2

    公开(公告)日:2020-07-02

    申请号:PCT/IB2019/061037

    申请日:2019-12-18

    Abstract: The present disclosure provides a method for bonding parts, comprising the following steps (a) Providing a two-component adhesive composition precursor, comprising a first part (A) comprising at least one epoxy curing agent and preferably at least one first dye; a second part (B) comprising at least one second dye different from the at least one first dye and at least one epoxy resin; (b) Mixing part (A) and part (B) of the two-component adhesive composition precursor so as to obtain an adhesive composition; (c) Applying the adhesive composition onto a first part; (d) Applying a second part onto the adhesive composition applied to the first part; and then performing a first curing step at a first temperature, wherein the adhesive composition undergoes a first colour change; or (e) Performing a first curing step at a first temperature, wherein the adhesive composition undergoes a first colour change, and then applying a second part onto the adhesive composition applied to the first part; (f) Perform a second curing step at a second temperature higher than the first temperature, thereby fully curing the adhesive composition so as to obtain a structural adhesive bond between the first and second parts, wherein the adhesive composition undergoes a second colour change.

    TWO-PART ADHESIVE COMPOSITION THAT UNDERGOES A VISUAL CHANGE WHEN CURED

    公开(公告)号:WO2020136511A3

    公开(公告)日:2020-07-02

    申请号:PCT/IB2019/061037

    申请日:2019-12-18

    Abstract: The present disclosure provides a method for bonding parts, comprising the following steps (a) Providing a two-component adhesive composition precursor, comprising a first part (A) comprising at least one epoxy curing agent and preferably at least one first dye; a second part (B) comprising at least one second dye different from the at least one first dye and at least one epoxy resin; (b) Mixing part (A) and part (B) of the two-component adhesive composition precursor so as to obtain an adhesive composition; (c) Applying the adhesive composition onto a first part; (d) Applying a second part onto the adhesive composition applied to the first part; and then performing a first curing step at a first temperature, wherein the adhesive composition undergoes a first colour change; or (e) Performing a first curing step at a first temperature, wherein the adhesive composition undergoes a first colour change, and then applying a second part onto the adhesive composition applied to the first part; (f) Perform a second curing step at a second temperature higher than the first temperature, thereby fully curing the adhesive composition so as to obtain a structural adhesive bond between the first and second parts, wherein the adhesive composition undergoes a second colour change.

    CURABLE PRECURSOR OF A STRUCTURAL ADHESIVE COMPOSITION

    公开(公告)号:WO2020070687A1

    公开(公告)日:2020-04-09

    申请号:PCT/IB2019/058427

    申请日:2019-10-03

    Abstract: The present disclosure relates to a curable precursor of a structural adhesive composition, comprising: a) a cationically self-polymerizable monomer; b) a polymerization initiator of the cationically self-polymerizable monomer which is initiated at a temperature T1; c) a curable monomer which is different from the cationically self-polymerizable monomer; and d) a curing initiator of the curable monomer which is initiated at a temperature T2 and which is different from the polymerization initiator of the cationically self-polymerizable monomer. According to another aspect, the present disclosure is directed to a partially cured precursor of a structural adhesive composition. According to still another aspect, the present disclosure relates to a method of bonding to parts. In yet another aspect, the disclosure relates to the use of a curable precursor or a partially cured precursor as described above, for industrial applications, in particular for body-in-white bonding applications for the automotive industry.

    PRESSURE SENSITIVE ADHESIVE ASSEMBLY SUITABLE FOR BONDING TO UNEVEN SUBSTRATES
    7.
    发明申请
    PRESSURE SENSITIVE ADHESIVE ASSEMBLY SUITABLE FOR BONDING TO UNEVEN SUBSTRATES 审中-公开
    压力敏感胶粘剂组合适用于粘合到未加工的基材

    公开(公告)号:WO2016011152A1

    公开(公告)日:2016-01-21

    申请号:PCT/US2015/040567

    申请日:2015-07-15

    Abstract: The present disclosure relates to a pressure sensitive adhesive assembly suitable for bonding to a substrate provided with an uneven surface, wherein the pressure sensitive adhesive (PSA) assembly comprises a polymeric foam layer comprising a polymeric base material, and having a complex viscosity comprised between 2,000 Pa.s to 80,000 Pa.s, when measured at 120C according to the test method described in the experimental section. The present disclosure is also directed to a method of applying a pressure sensitive adhesive assembly to a substrate provided with an uneven surface, and uses thereof.

    Abstract translation: 本公开涉及一种压敏粘合剂组合物,其适于粘合到具有不平坦表面的基底上,其中压敏粘合剂(PSA)组件包括聚合物泡沫层,其包含聚合物基体材料,并且具有2000 当根据实验部分中描述的测试方法在120℃下测量时,Pa.s为80,000Pa.s。 本公开还涉及将压敏粘合剂组合物施加到具有不平坦表面的基底上的方法及其用途。

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