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1. WO2020200857 - PROCESS FOR MODIFYING THE SURFACE POLARITY OF RUBBER SUBSTRATES

Publication Number WO/2020/200857
Publication Date 08.10.2020
International Application No. PCT/EP2020/057906
International Filing Date 23.03.2020
IPC
C08J 7/12 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
7Chemical treatment or coating of shaped articles made of macromolecular substances
12Chemical modification
CPC
C08J 2307/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2307Characterised by the use of natural rubber
C08J 2309/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2309Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
06Copolymers with styrene
C08J 2321/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2321Characterised by the use of unspecified rubbers
C08J 7/126
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
7Chemical treatment or coating of shaped articles made of macromolecular substances
12Chemical modification
126Halogenation
Applicants
  • HENKEL AG & CO. KGAA [DE]/[DE]
Inventors
  • MONESI, Alessio
  • SALMOIRAGHI, Eleonora
  • SIGNORILE, Marco
  • ZAFFARONI, Giorgio
Priority Data
19166067.929.03.2019EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR MODIFYING THE SURFACE POLARITY OF RUBBER SUBSTRATES
(FR) PROCÉDÉ DE MODIFICATION DE LA POLARITÉ DE SURFACE DE SUBSTRATS EN CAOUTCHOUC
Abstract
(EN)
The present invention relates to a process for modifying the surface polarity of elastomeric rubber substrates to facilitate their cold bonding to other rubber substrates or non-elastomeric substrates of a different material, preferably metal, by chlorinating the rubber substrate surface by treatment with a chloride-containing composition and a peroxymonosulfate-containing composition. Further aspects relate to the thus obtained surface-modified rubber substrates, processes of bonding them to other substrates by use of an adhesives as well as the thus obtained bonded substrates.
(FR)
La présente invention concerne un procédé pour modifier la polarité de surface de substrats en caoutchouc élastomère pour faciliter leur liaison à froid à d'autres substrats en caoutchouc ou à des substrats non élastomères d'un matériau différent, de préférence métallique, par chloration de la surface du substrat en caoutchouc par traitement avec une composition contenant du chlorure et une composition contenant du peroxymonosulfate. D'autres aspects concernent les substrats en caoutchouc modifiés en surface ainsi obtenus, des procédés de liaison de ceux-ci à d'autres substrats au moyen d'adhésifs ainsi que les substrats liés ainsi obtenus.
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