Process for depositing a latex coating on an article made of elastomer and composite article based on silicone elastomer comprising a latex coating
AssigneeIsoform
InventorsGerard Payet, Constantin Tsangarakis
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Abstract
The invention relates to a process for depositing a latex coating on an article made of elastomer, wherein a continuous layer of a hydrophilic inorganic pulverulent material is deposited at the surface of the elastomer and the said article is immersed in an aqueous latex suspension. The invention also relates to a composite article based on silicone elastomer comprising a latex coating, said composite article including a film made up of a hydrophilic inorganic pulverulent material at the interface between the silicone elastomer and the latex.
Claims14
A process for depositing a latex coating on an article made of elastomer, wherein a continuous layer of a hydrophilic inorganic pulverulent material is deposited at the surface of the elastomer and said article is immersed in an aqueous latex suspension.
A process for depositing a latex coating on an article made of elastomer, wherein a continuous layer of a hydrophilic inorganic pulverulent material is deposited at the surface of the elastomer and said article is immersed in an aqueous latex suspension, and wherein the hydrophilic inorganic pulverulent material is a sodium montmorillonite obtained by exchanging calcium montmorillonites with Na.sub.2 CO.sub.3.
A process for producing a latex jacket around an article made of silicone elastomer, comprising the following steps:
- a) depositing a film of a hydrophilic inorganic pulverulent material on the article made of silicone elastomer;
- b) immersing the article in an alcoholic solution of a salt which coagulates latex dispersions;
- c) drying the article;
- d) immersing the article in an aqueous latex dispersion containing vulcanisation products, and
- e) rinsing, drying and stoving the article.
A composite silicone elastomer article comprising a latex coating thereon, said composite article including a film made up of a hydrophilic inorganic pulverulent material located at the interface between the silicone elastomer and the latex.
Dependencies are inferred from the claim text.