Patent GB-813601-A (GB)
Title: Coated glass fibers
IPC: D06M15/333
Filed: 1955-04-12
Abstract: Polyvinyl alcohol may be complexed with a titanic acid ester or a titanium salt of an organic acid or may be included in a composition comprising a complex formed from such a titanium ester or salt and an amine, hydroxy amine or alcohol.  In Example 5, an aqueous composition for application to glass fibres comprises polyvinyl alcohol, titanium lactate, a surface active agent and acetic acid.  A complex is said to be formed in situ on the glass fibres.ALSO:A complex is formed from a titanium salt of an organic acid or a titanic acid ester and an alcohol, amine or hydroxyamine.  The titanium compound, which may contain an organic radical having an unsaturated carbon to carbon linkage, a highly negative group, a labile hydrogen atom or a highly polar group, may be tetraethoxy titanate, tetramethoxy titanate, tetrapropoxy titanate, tetrabenzoxy titanate; a titanium tetracarboxylate formed from stearic acid, palmitic acid, oleic acid, linoleic acid, myristic acid or lauric acid or a tetraester from the corresponding alcohol and may be complexed with mono-, di- or tri-ethanolamine; polyamines; an amino-substituted-oleic acid, -linoleic acid, -palmitic acid, -caproic acid or -lauric acid; glycols or polyglycols.  The compounds are used in compositions for coating glass fibres and in Example (1), a coating composition includes beta-amino ethoxy, ethoxy titanium laurate which has the formula <FORM:0813601/IV (b)/1> In Example (2) a complex is formed by reacting tetraethoxy titanate with two molecules of octylene glycol and one molecule of triethanolamine.  In Example (3) tetraethoxy titanatelactic acid complex is formed by reacting tetraethoxy titanate with lactic acid in sufficient amounts to replace the ethoxy compounds and further complex the ester.  The compound has the formula <FORM:0813601/IV (b)/2> In Example (4) a composition comprises a diallyl citrate ethoxy titanate having the following formula <FORM:0813601/IV (b)/3> The compounds may further complex with the glass fibres.ALSO:Glass fibres are provided with a coating comprising a complex formed from a titanic acid ester or a titanium salt of an organic acid and an alcohol, amine or hydroxyamine.  The titanium compound, which may contain an organic radical having an unsaturated carbon to carbon linkage, a highly negative group, a labile hydrogen atom or a highly polar group, may be tetraethoxy titanate, tetramethoxy titanate, tetrapropoxy titanate, tetrabenzoxy titanate; a titanium tetracarboxylate formed from stearic acid, palmitic acid, oleic acid, linoleic acid, myristic acid or lauric acid or a tetraester from the corresponding alcohol, and may be complexed with mono-, di- or triethanolamine, an amino-substituted-oleic acid, -linoleic acid, -palmitic acid, -caproic acid or -lauric acid, glycols, polyglycols or polyvinyl alcohol.  If the compound for complexing with the titanium compound contains short-chain organic groups, a lubricant may be added to the coating composition.  The coating composition may contain a film forming substance, e.g. polyvinyl alcohol.  The complex may be formed in situ upon the fibres and may further complex with the glass.  In the examples, aqueous coating compositions comprise, (1) beta-amino ethoxy titanium laurate, imidazoline stearate and acetic acid; (2) a titanic acid ester formed of tetra-ethoxy titanate-octylene glycoltriethanolamine; (3) tetra-ethoxy titanatelactic acid complex, polyvinyl alcohol, tetraethylene pentamine and acetic acid; (4) allyl alcohol ethoxy titanate complex and tetraethylene pentamine; (5) polyvinyl alcohol, titanium lactate and a surface-active agent.  The compositions may be allowed to dry on the fibres or the coating may be set by heat treatment at temperatures up to 250 DEG  F. Specifications 813,602 and 813,603 are referred to.