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Curable composition

A composition, polymer technology, applied in the field of curable composition, can solve problems such as hindering effective dynamic vulcanization

Inactive Publication Date: 2021-07-30
SOLVAY SOLEXIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, in the presence of said organic peroxides, significant crosslinking can occur during the heating phase (i.e. long before the thermoplastic polymer actually melts), thereby hindering efficient dynamic vulcanization leading to optimal dispersion of the dispersed phase in the thermoplastic matrix

Method used

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  • Curable composition
  • Curable composition
  • Curable composition

Examples

Experimental program
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Effect test

no. 1 example

[0092] In a first embodiment, said at least one polymer (E) is a (per)fluoroelastomer. For the sake of brevity, the (per)fluoroelastomer is also referred to as elastomer (E1).

[0093] As stated, the elastomer (E1) may, in addition to recurring units derived from at least one (per)fluorinated monomer (F) selected from the group mentioned above, also comprise (M) repeating unit. Examples of hydrogenated monomers (M) are notably hydrogenated alpha-olefins including ethylene, propylene, 1-butene, diene monomers, styrene monomers, alpha-olefins are typically used.

[0094] Preferably, the elastomer (E1) is selected from:

[0095] (1) Copolymers based on VDF, wherein VDF is copolymerized with at least one additional comonomer selected from the group consisting of:

[0096] (a)C 2 -C 8 Perfluoroolefins, such as tetrafluoroethylene (TFE), hexafluoropropylene (HFP);

[0097] (b) C containing hydrogen 2 -C 8 Olefins, such as vinyl fluoride (VF), trifluoroethylene (TrFE), hexafluo...

no. 2 example

[0138] In a second embodiment, said at least one polymer (E) is a thermoplastic (per)fluoropolymer. For the sake of clarity, the thermoplastic material is also referred to below as thermoplastic material (E2).

[0139] As stated, the thermoplastic material (E2) may additionally comprise, in addition to recurring units derived from at least one (per)fluorinated monomer (F) selected from the group mentioned above, derived from at least one hydrogenated monomer Repeating units of (M), the hydrogenated monomer is preferably selected from:

[0140] - ethylene;

[0141] - Acrylic monomers having the general formula: CH 2 =CH-CO-O-R 2 , where R 2 is C optionally containing one or more heteroatoms 1 -C 20 hydrocarbon group;

[0142] - Vinyl ether monomers having the general formula: CH 2 =CH-O-R 2 , where R 2 is C optionally containing one or more heteroatoms 1 -C 20 hydrocarbon group;

[0143] - Vinyl esters of carboxylic acids having the general formula: CH 2 =CH-O-CO-...

Synthetic example

[0228] Synthesis of Master Batch A

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Abstract

The present invention relates to a curable composition comprising: at least one polymer comprising cure sites [polymer (E)], at least one thermoplastic polymer [thermoplastic (P)] different from said polymer (E) and at least one 1,5 enediyne curing agent [agent (C)], and to a blend obtained by dynamic vulcanization of said composition.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from European Patent Application No. 18213892.5 filed on December 19, 2018, the entire content of which application is hereby incorporated by reference for all purposes. technical field [0003] The invention relates to a curable composition and a blend obtained by dynamic curing of said composition. Background technique [0004] A thermoplastic vulcanizate (TPV) is a two-phase composition comprising a thermoplastic material as a continuous phase and an elastomeric material as a dispersed phase by mixing the two materials simultaneously and keeping the thermoplastic material in a molten state while allowing the elastomer to The material is produced by cross-linking. Typically, the elastomeric material forms crosslinked particles uniformly dispersed in the thermoplastic material. The method is well known as dynamic vulcanization. [0005] These materials are particularly advantageous ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/00C08K5/01C08K5/03C08L27/18
CPCC08K3/04C08K5/0025C08K2003/222C08L2205/025C08L2205/22C08L2310/00C08L2312/02C08L27/18C08L71/00C08L65/02C08L81/02C08L71/12C08K3/22C08F214/262C08L2312/00C08G65/2612C08G2650/40C08K5/03C08K5/14C08L27/10C08L2207/04
Inventor A·桑圭内蒂M·米兰达I·D·维拉斯斯
Owner SOLVAY SOLEXIS
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