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US 5,683,812 AGranted
Ceramifiable sizing composition for continuous inorganic yarns, yarns coated with this composition and process for sizing and heat treatment making use of this composition
AssigneeQuartz & Silice
InventorLaurent Jean Andre Molins
Life of this patent
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Abstract
A ceramifiable sizing composition includes, in % by weight: a) 5.5 to 20% of at least one water-soluble metal salt chosen from chromium, zirconium, titanium and aluminum salts; b) 0.2 to 15% of at least one binding agent; c) 0.15 to 3% of at least one silane giving the continuous inorganic yarn good properties of resistance to abrasion and of tensile strength of dry yarn; d) 0.6 to 17% of at least one lubricating agent; and e) a balance of water.
Claims4
Continuous inorganic yarn coated with a sizing composition which can be converted into a ceramic material and which includes, in %, by weight:
- a) 5.5 to 20% of at least one water-soluble metal salt selected from the group consisting of chromium, zirconium, titanium and aluminum salts;
- b) 0.2 to 15% of at least one binding agent;
- c) 0.15 to 3% of at least one silane containing amine, alkoxy, epoxy, sulfide, methacroyl, vinyl, ureido or isocyanate groups and imparting resistance to abrasion and tensile strength of dry yarn to said continuous inorganic yarn;
- d) 0.6 to 17% of at least one lubricating agent;
- and
- e) a balance of water.
3 more elements
Dependencies are inferred from the claim text.