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Multilayer composite composition, its manufacturing process, and article obtained thereof

a composite composition and manufacturing process technology, applied in the field of multi-layer compositions, can solve problems such as inability to be thermoformed or recycled

Pending Publication Date: 2018-12-27
ARKEMA FRANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0154]A closed mold will amongst other things avoid and reduce the evaporation of the monomer and protect the environment.
[0155]Using the same closed mold will avoid the transfer of the material after impregnation and polymerizing in a closed mold will guarantee a good distribution of the heat, having a satisfying yield of polymerization and eventually evaporation of the monomer(s).
[0181]The inhibitor is present to prevent the monomer from spontaneously polymerising.
[0216]One advantage of this method is the high amount of fibrous material in the composite.
[0220]Grinding is made mechanically in order to obtain smaller parts of pieces. As the structured part compromises thermoplastic polymers, this polymer can be heated, and the pieces again transformed in a certain limit in order to obtain a new object. The ground powders can be mixed with other thermoplastic products to obtain a formulation that can be more easily processed using classical tools such as extruders or injection molding machines.

Problems solved by technology

The coating is not a thermoplastic and consequently can not be thermoformed or recycled.

Method used

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  • Multilayer composite composition, its manufacturing process, and article obtained thereof

Examples

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examples

[0228]A multilayer composition is realized according to the structure given in FIG. 2. The surface layer (1) and the intermediate layer (3) are obtained by thermoforming Senosan AM50 from the company SENOPLAST in a mold. The carrier layer of Senosan AM50 consists of an easily thermo-formable and high impact ABS and will give the intermediate layer and the top layer is an impact modified acrylic (PMMA) and will give the surface layer. The substrate layer comprising the polymeric composite material is obtained by polymerizing a methacrylic syrup in the same closed mold after infusion of a fibrous material.

[0229]The syrup is prepared by dissolving 25 parts by weight of the PMMA (BS520 a copolymer of MMA comprising ethyl acrylate as a comonomer) in 75 parts by weight of methyl methacrylate, which is stabilized with MEHQ (hydroquinone monomethyl ether). To the 100 parts by weight of the syrup are added 2 parts by weight of benzoyl peroxide (BPO—Luperox A75 from ARKEMA) and 0.2 parts by w...

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Abstract

The present invention relates to a multilayer composition comprising a surface layer comprising a thermoplastic polymer A and a substrate layer comprising a polymeric composite material based thermoplastic (meth)acrylic matrix and a fibrous material as reinforcement. The multilayer composition is suitable for mechanical or structured parts or articles with a decorative surface aspect. The present invention concerns also a manufacturing process for multilayer mechanical or structured parts or articles and three-dimensional mechanical or structured parts.

Description

CLAIM TO PRIORITY[0001]This application in a Continuation Application of, and claims benefit to, copending application Ser. No. 14 / 760,547, filed Jan. 15, 2014; which claimed benefit, under U.S.C. § 119 or § 365 of PCT Application Number PCT / EP2014 / 050711, filed Jan. 15, 2014, which claims the benefit of priority of PCT Application Number PCT / EP2013 / 050660, filed Jan. 15, 2013.FIELD OF THE INVENTION[0002]The present invention relates to a multilayer composition comprising a surface layer comprising a thermoplastic polymer A and a substrate layer comprising a polymeric composite material based thermoplastic (meth)acrylic matrix and a fibrous material as reinforcement. The multilayer composition is suitable for mechanical or structured parts or articles with a decorative surface aspect[0003]The present invention concerns also a manufacturing process for multilayer mechanical or structured parts or articles and three-dimensional mechanical or structured parts.Technical Problem[0004]Mec...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B29C70/08B32B27/40B32B37/18B29C65/00B29C70/06B29C70/48B32B27/36B32B27/12B32B27/18B32B27/30B32B27/32C08J5/00B29B17/04B29K33/00B29K55/02B29K105/06B29K105/12B29K309/08B29K655/02B29L9/00B32B38/00B32B38/08
CPCB32B2605/00B29C66/7212B32B2307/558B32B2307/538B32B2270/00B32B2262/106B32B2262/08B32B2262/067B32B2262/06B32B2260/046B32B2260/021B32B27/40B32B27/365B32B27/32B32B27/304B32B27/302Y10T428/31649B32B2038/0076B32B38/08B29C70/086B29K2033/08B32B27/36Y02W30/625B29L2009/00B29K2105/06B29B17/04B29L2009/005B29K2995/0018B32B2305/10B32B2262/101B29C70/48B29K2033/12B32B2333/12B32B2305/076B32B27/12B29K2309/08B29K2633/12B29K2655/02B29K2055/02B29K2105/12B32B2355/02B32B2315/085C08J2433/12C08J2333/12C08J2455/02C08J2355/02B29C70/06B29C66/712B32B37/182B32B27/18C08J5/00B32B2307/702Y02W30/62
Inventor GLOTIN, MICHELGERARD, PIERREHOLZMANN, RENANDA COSTA LIMA, GILMAR
Owner ARKEMA FRANCE SA