Patent GB-1057291-A (GB)
Title: Tack deterring additives for forming size compositions
IPC: C08L63/00
Filed: 1963-07-16
Abstract: Glass fibres are sized with a homogeneous composition comprising a saturated polyester resin and an epoxide resin containing acid neutralized amino groups.  Preferred sizing compositions are aqueous dispersions comprising 1 to 7 wt. per cent polyester, 0.1 to 5.25% epoxide resin and 0.1 to 2% of an organosilane Rn SiX4-n, where R is alkenyl or acyloxy, X is halogen, alkoxy or hydroxyl, and n is 1, 2 or 3. The epoxide resin may be an acid neutralized addition product of a polyepoxide as described in Specification 1,057,292.  The polyesters maybe derived by condensing alkylene and polyalkylene glycols with acids such as succinic, phthalic, oxalic, malonic, gluteric, adipic and sebacic to an acid number of 20 to 40.  The composition may also comprise a lubricant e.g. a condensate of stearic or pelargonic acid with tetramethylene pentamine or a vegetable or animal oil.  In the example the size composition is applied to glass fibres as they are formed by an apron applicator according to Specification 810,611.ALSO:Glass fibres are sized with a homogeneous composition comprising a saturated polyester resin and an epoxide resin containing acid neutralised amino groups.  Preferred sizing compositions are aqueous dispersions comprising 1 to 7 wt. per cent polyester, 0.1 to 5.25% epoxide resin and 0.1 to 2% of an organosilane Rn SiX 4-n where R is alkenyl or acyloxy, X is halogen, alkoxy or hydroxyl, and n is 1, 2 or 3. The epoxide resin may be an acid neutralised addition product of a polyepoxide as described in Specification 1,057,292.  The polyesters may be derived by condensing alkylene and polyalkylene glycols with acids such as succinic, phthalic, oxalic, malonic, gluteric, adipic and sebacic to an acid number of 20 to 40.  The composition may also comprise a lubricant, e.g. a condensate of stearic or pelargenic acid with tetramethylene pentamine or a vegetable or animal oil.  In the Example the size composition is applied to glass fibres as they are formed by an apron applicator according to Specification 810,611.ALSO:Glass fibres are sized with a homogeneous composition comprising a saturated polyester resin and an epoxide resin containing acid neutralised amino groups. Preferred sizing compositions are aqueous dispersion comprising 1 to 7 wt. per cent polyester, 0.1 to 5.25% epoxide resin and 0.1 to 2% of an organosilane Rn Six4-n where R is alkenyl or acyloxy, X is halogen, alkoxy or hydroxyl, and n is 1, 2 or 3. The epoxide resin may be an acid neutralised addition product of a polyepoxide as described in Specification Serial No. 1,057,292. The polyesters may be derived by condensing alkylene and polyalkylene glycols with acids such as succinic, phthalic, oxalie, malonic, gluteric, adipic and sebacic to an acid number of 20 to 40.  The composition may also comprise a lubricant e.g. a condensate of stearic or pelargonic acid with tetramethylene pentamine or a vegetable or animal oil.  In the Example the size composition is applied to glass fibres as they are formed by an apron applicator according to Specification 810,611.