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Silicone composition and process useful for improving the crease resistance and abrasion resistance of airbags, intended for protecting a vehicle occupant

A technology of organosilicon and composition, applied in the field of organosilicon composition and organosilicon composition for coating

Active Publication Date: 2018-07-17
ELKEM SILICONES FRANCE SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is currently no satisfactory technical solution to the use of woven or knitted fiber carriers in airbag applications that do not undergo a washing step or heat setting step after weaving

Method used

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  • Silicone composition and process useful for improving the crease resistance and abrasion resistance of airbags, intended for protecting a vehicle occupant
  • Silicone composition and process useful for improving the crease resistance and abrasion resistance of airbags, intended for protecting a vehicle occupant
  • Silicone composition and process useful for improving the crease resistance and abrasion resistance of airbags, intended for protecting a vehicle occupant

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Experimental program
Comparison scheme
Effect test

Embodiment

[0265] 1) Definition of ingredients:

[0266] -Organopolysiloxane E1: polydimethylsiloxane oil coated at each chain end with (CH 3 ) 2ViSiO 1 / 2 The unit is closed and the viscosity is 60000mPa.s.

[0267] - Resin F1: formula MM containing 1.1% by weight of vinyl groups Vi Q organopolysiloxane.

[0268] - catalyst C1: platinum metal, introduced in the form of an organometallic complex with 10% by weight of platinum metal (called Karstedt catalyst),

[0269] - Organohydrogenpolysiloxane H1: Poly(dimethyl)(hydrogenmethyl)siloxane oil with a viscosity of 25 mPa.s and containing 0.7 mol Si-H functional groups / 100 g oil

[0270] - Inhibitor I1: 1-ethynyl-1-cyclohexanol or ECH,

[0271] - Filler J1: untreated precipitated calcium carbonate with an average equivalent diameter of 2 μm.

[0272] Components tested as adhesion promoters:

[0273] - Glycidoxypropyltrimethoxysilane (GLYMO),

[0274] -Butyl titanate Ti(OBu) 4 (TBT)

[0275] - various additives K1 to K11, see belo...

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Abstract

The general field of the invention is that of silicone coating compositions, in particular those of two-component or multi-component type, that can be crosslinked by polyaddition or hydrosilylation reactions to produce a support coated by a silicone elastomer as a thin layer. These silicone compositions, when they are crosslinked, are suitable, inter alia, as coatings, for example for the protection or mechanical reinforcement of various textile substrates such as for example fibrous, woven, knitted or nonwoven supports. The targeted objective is to provide a silicone elastomer coating composition that can be crosslinked by polyaddition reactions and that is useful in particular for applications in the field of inflatable safety bags for vehicles, or airbags, having, after crosslinking, optimum properties in terms of adhesion, thinness, lightness and crease and abrasion resistance, but also good mechanical properties. This silicone coating composition should also be easy to use and toapply.

Description

technical field [0001] The general field of the invention is that of silicone compositions for coatings, especially of the two-component or multi-component type, which can be obtained by polyaddition or hydrosilane The chemical reaction crosslinks to produce a support coated with a silicone elastomer in thin layer form. These silicone compositions are especially suitable when crosslinked as coatings, for example for protecting or mechanically reinforcing substrates made of various textile materials, such as woven, knitted or nonwoven fibrous supports. [0002] These silicone coatings are usually obtained by coating a substrate and then combining the unsaturated groups (alkenyl groups, for example Si-Vi) of an organopolysiloxane with the hydrogen groups of the same or another organopolysiloxane Polyaddition of silyl functional groups results in curing. [0003] These silicone compositions have found important outlets in the coating of woven, knitted or nonwoven flexible mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04D06M15/65B60R21/235
CPCB60R21/235C09D183/04C08G77/12C08G77/20D06M15/65D06N2211/268D06N3/128B60R2021/23514D06M2101/32D06M2101/34C08G77/38C08K5/56C08L83/00C08K5/0091C08G77/08C08L83/04D06N2201/0263D06N2203/066D06N2209/105D10B2331/02D10B2331/04D10B2401/061D10B2505/124
Inventor K·博莱克基A·赛吉奥D·德基安B·伯德斯
Owner ELKEM SILICONES FRANCE SAS
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