The present invention relates to an aqueous adhesive composition, comprising at least A) a phenol-aldehyde resin and B) an unsaturated elastomer latex, characterised in that the base of the phenol-aldehyde consists of at least: an aromatic polyaldehyde bearing at least two aldehyde functions that comprise at least one aromatic ring; a polyphenol comprising one or more aromatic ring(s), it being understood that: in the case of a single aromatic ring, said ring bears two or three hydroxyl functions in meta position relative to each other, the rest of the ring being unsubstituted; in the case of multiple aromatic rings, at least two of said rings each bear two or three hydroxyl functions in meta position relative to each other, it being understood that the two ortho positions of at least one of these hydroxyl functions are unsubstituted. Such an adhesive composition is usable particularly to enable adhesion between a textile material and a crosslinkable rubber composition, and is an advantageous alternative to using a formaldehyde-based RFL adhesive.

Aqueous adhesive composition based on polyaldehyde and polyphenol

P10-3108_PCT -25- Companies:-COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, and -Michelin Recherche et Technique S.A. Title: AQUEOUS ADHESIVE COMPOSITION WITH A BASE OF BIOSOURCED ALDEHYDE AND POLYPHENOL ABSTRACT The aqueous adhesive composition according to the invention comprises an unsaturated elastomer latex and a phenol-aldehyde resin with a base of: - an aldehyde of formula (I): (I) wherein X comprises N, S or O and R represents -H or -CHO, - one or more phenols, at least 50% by mass of the total mass of the phenol(s) being a polyphenol comprising one or more aromatic core(s): o in the case of a single aromatic core, the latter carries two or three hydroxyl functions in the meta position relative to one another, the rest of the aromatic core being unsubstituted; o in the case of several aromatic cores, at least two of them each carry two or three hydroxyl functions in the meta position relative to one another, the two ortho positions of at least one of said hydroxyl functions being unsubstituted.

Aqueous adhesive composition with a base of biosourced aldehyde and polyphenol

Flat reinforcer having the shape of a multicomposite strip (R 1 , R 2 , R 3 ) defining three main perpendicular directions, the axial direction (X), the transverse direction (Y) and the radial direction (Z), having a width W R measured along the Y direction of between 2 and 100 mm and having a thickness T R measured along the Z direction of between 0.1 and 5 mm, the aspect ratio W R /T R being greater than 3, this multicomposite strip comprising at least:
 a plurality of monofilaments ( 10, 20 ) made of composite material, orientated along the X direction, comprising filaments of a mineral material ( 101 ) embedded in a thermoset resin ( 102 ), the glass transition temperature of which, denoted Tg 1 , is greater than 70° C.; this plurality of monofilaments ( 10, 20 ) being coated in a layer of thermoplastic material ( 12 ); all or some of these monofilaments ( 10, 20 ) being flat monofilaments, of cross section having a width W M measured along the Y direction and having a thickness T M measured along the Z direction, with an aspect ratio W M /T M greater than 1.5. Multilayer laminate comprising such a multicomposite reinforcer. Pneumatic or non-pneumatic tyre reinforced by such a multicomposite reinforcer or multilayer laminate.

Multi-composite planar reinforcement

Identification labels and their incorporation in rubber-based articles are described. The labels include RFID components and can be incorporated in tires. The labels can withstand the relatively harsh conditions associated with vulcanization.

Tire tracking RFID label

Tailoring the properties of waterborne polyurethanes by incorporating different content of poly(dimethylsiloxane)

The invention relates to an aqueous adhesive composition comprising at least A) a phenol-aldehyde resin and B) an unsaturated elastomer latex, characterised in that the phenol-aldehyde resin is based on at least an aromatic polyaldehyde carrying at least two aldehyde functions and having at least one aromatic core, and phloroglucinol. Such an adhesive composition can especially be used to adhere a textile material to a cross-linkable rubber composition, and is an advantageous alternative to the use of a formaldehyde-based RFL glue.

Aqueous adhesive composition based on polyaldehyde and phloroglucinol

The invention relates to an aqueous adhesive composition comprising at least A) a phenol-aldehyde resin and B) an unsaturated elastomer latex, characterised in that the phenol-aldehyde resin is based on at least an aromatic polyaldehyde carrying at least two aldehyde functions and having at least one aromatic core, and 2,2',4,4'-tetrahydroxydiphenyl sulfide. Such an adhesive composition can especially be used to adhere a textile material to a cross-linkable rubber composition, and is an advantageous alternative to the use of a formaldehyde-based RFL glue.

Aqueous adhesive composition based on polyaldehyde and 2,2',4,4'-tetrahydroxydiphenyl sulfide

The present invention relates to a rubber composition including at least one phenol-aldehyde resin made up of: at least one aromatic polyphenol including at least one aromatic ring having at least two hydroxyl functions in the meta position relative to one another, the two ortho positions of at least one of the hydroxyl functions being non-substituted; and at least one aldehyde of formula (A): (A) wherein: X includes N, S or O; and R is -H or -CHO. The invention also relates to a method for producing said composition, a rubber composite and a tyre.

David Doisneau

Papers

Aqueous adhesive composition based on polyaldehyde and phloroglucinol

Aqueous adhesive composition based on polyaldehyde and polyphenol

Aqueous adhesive composition based on polyaldehyde and 2,2',4,4'-tetrahydroxydiphenyl sulfide

Aqueous adhesive composition with a base of biosourced aldehyde and polyphenol

High-rigidity rubber composition