WO2025168833 - METHOD OF BONDING ELASTOMERIC SUBSTRATES
National phase entry is expected:
Publication Number
WO/2025/168833
Publication Date
14.08.2025
International Application No.
PCT/EP2025/053354
International Filing Date
10.02.2025
Title **
[English]
METHOD OF BONDING ELASTOMERIC SUBSTRATES
[French]
PROCÉDÉ DE LIAISON DE SUBSTRATS ÉLASTOMÈRES
Applicants **
HENKEL AG & CO. KGAA
Inventors
SALMOIRAGHI, Eleonora
CREMONESI, Stefano
SIGNORILE, Marco
Priority Data
24156858.3
09.02.2024
EP
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2011 | |
| EPO | Filing, Examination, Granting | 8113 | |
| Japan | Filing, Examination, Granting | 2122 | |
| South Korea | Filing, Examination, Granting | 2008 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
18,994
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Abstract[English]
); ii) optionally applying a third composition comprising activated carbon to the surface of said first substrate; iii) incubating the first, second and optionally third composition with said first substrate for a time period and under conditions that allow chlorination of the surface of said first substrate; iv) applying an adhesive composition to the surface of said second substrate, wherein the adhesive composition is a hot melt adhesive composition comprising, based on the total weight of the composition: from 50 to 100 wt.% of a) at least one base polymer selected from the group consisting of polyamides; from 0 to 50 wt.% of b) at least one tackifying resin; from 0 to 50 wt.% of c) wax; and, from 0 to 5 wt.% of d) at least one stabilizer selected from the group consisting of antioxidants, UV stabilizers, thermal stabilizers and hydrolysis stabilizers; and, v) contacting the chlorinated surface of the first substrate and the surface of the second substrate with the applied adhesive under pressure to form the bond.[French]
) ; ii) éventuellement l'application d'une troisième composition comprenant du charbon actif sur la surface dudit premier substrat ; iii) l'incubation de la première, de la deuxième et éventuellement de la troisième composition avec ledit premier substrat pendant une période de temps et dans des conditions qui permettent la chloration de la surface dudit premier substrat ; iv) l'application d'une composition adhésive sur la surface dudit second substrat, la composition adhésive étant une composition adhésive thermofusible comprenant, sur la base du poids total de la composition : de 50 à 100 % en poids a) d'au moins un polymère de base choisi dans le groupe constitué par les polyamides ; de 0 à 50 % en poids b) d'au moins une résine tackifiante ; de 0 à 50 % en poids c) d'une cire ; et, de 0 à 5 % en poids d) d'au moins un stabilisant choisi dans le groupe constitué par les antioxydants, les stabilisants UV, les stabilisants thermiques et les stabilisants d'hydrolyse ; et, v) la mise en contact de la surface chlorée du premier substrat et de la surface du second substrat avec l'adhésif appliqué sous pression pour former la liaison.