Unlock instant, AI-driven research and patent intelligence for your innovation.

Reinforced product comprising a self-adhesive composite reinforcement containing a block copolymer

A technology of block copolymers and products, which can be used in the reinforcement layer of pneumatic tires, vehicle parts, transportation and packaging, etc., and can solve the problems of increasing the cost of rubber matrix, increasing the sensitivity of oxidation and aging, etc.

Active Publication Date: 2018-11-23
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
View PDF51 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Thus, metal reinforcements that are not coated with an adhesive metal layer, such as brass, and a surrounding rubber matrix that does not contain metal salts, such as cobalt salts, which are, in a known manner, useful for long-term Maintaining the quality of adhesive properties is necessary, but on the one hand it significantly increases the cost of the rubber substrates themselves and on the other hand increases their susceptibility to oxidation and aging (see eg patent application WO 2005 / 113666)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reinforced product comprising a self-adhesive composite reinforcement containing a block copolymer
  • Reinforced product comprising a self-adhesive composite reinforcement containing a block copolymer
  • Reinforced product comprising a self-adhesive composite reinforcement containing a block copolymer

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0118] According to the first embodiment, the block copolymer used according to the invention has the following formula:

[0119] PA-(R-Pol) n -R-Pol-R-PA

[0120] Wherein n is between 0 and 100, especially 0 to 10, preferably 0 or 1,

[0121] PA stands for polyamide block,

[0122] R represents an alkylene block,

[0123] Pol stands for polyolefin block.

no. 2 approach

[0124] According to the second embodiment, the block copolymer used according to the invention has the following formula:

[0125] PA-(R-Pol-PA) n -R-Pol-R-PA

[0126] Wherein n is between 0 and 100, especially 0 to 10, preferably 0 or 1,

[0127] PA, R and Pol are as defined above.

[0128] According to the third embodiment, the block copolymer used according to the invention has the following formula:

[0129] PA-(R-Pol-R-PA) n -R-Pol-R-PA

[0130] Wherein n is between 0 and 100, especially 0 to 10, preferably 0 or 1,

[0131] PA, R and Pol are as defined above.

[0132] Block content

[0133] Preferably, the block copolymer present in the coating composition according to the present invention contains between 0.1% and 25% by weight, preferably between 1% and 15% by weight, based on the total weight of the block copolymer The alkylene block content.

[0134] Advantageously, the block copolymer used according to the invention comprises an alkylene block content between 0.1% and 25% by wei...

Embodiment

[0370] I. Synthesis of block copolymer

[0371] Synthesis of copolymer: PA 1 according to the invention

[0372] The polybutadiene and the fatty acid dimer were mixed at a molar ratio of 1 / 2 (polybutadiene / fatty acid dimer).

[0373] The resulting mixture is then mixed with the polyamide as described below.

[0374] ·Preparation of PA11 diamine with a number average molecular weight of 5000g / mol:

[0375] 5000 g of 11-aminoundecanoic acid, 116.2 g of hexamethylene diamine and 750 g of deionized water were introduced into a 12-liter autoclave equipped with an anchor stirrer. The medium is inerted with nitrogen and then heated to a material temperature of 210°C with stirring. Then the pressure is 20 bar. The medium was then heated to a material temperature of 230°C while maintaining a pressure of 20 bar. When this temperature is reached, the pressure is returned to atmospheric pressure by reducing the pressure and flushing under nitrogen for 90 minutes.

[0376] The product thus obta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a reinforced product (21) that can be used in particular for reinforcing a finished rubber article, comprising one or more textile or metal reinforcement strands (46) which are individually or collectively covered by a cladding (48) comprising a cladding composition (50) that contains one or more block copolymers comprising at least one polyamide block and at least one polyolefin block, the clad strand(s) being embedded in a rubber composition (23).

Description

Technical field [0001] The present invention relates to a reinforced product that can be used in particular to reinforce finished rubber products, comprising one or more reinforcing threads covered with a covering comprising a covering composition, the covering composition comprising one or more A specific block copolymer, the coated filaments (thus forming a composite reinforcement) are themselves embedded in a rubber composition based on at least one diene elastomer. Background technique [0002] It has long been known to coat metal reinforcements with thermoplastic materials such as polyamide or polyester, especially to protect these reinforcements from various external attacks (such as oxidation or abrasion), or to be structurally hardened and bonded to each other Various wire components or wire assemblies (eg cords), thereby particularly increasing their bending resistance. [0003] Such composite reinforcements and their use in rubber products such as pneumatic tires have be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/48C08G81/02C09D5/08D07B1/06
CPCC08G81/028C09D5/08D02G3/48D07B1/0666D07B2201/2012D07B2201/2044D07B2201/2046D07B2205/2003D07B2205/3053D07B2207/404B60C2001/0066B60C2009/2061B60C2009/2035B60C2009/0021B60C2009/2019B60C2009/2096B60C9/0064C08K3/013C08J5/041C08K5/0025
Inventor S·里戈Q·皮诺
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN