| 摘要 |
<p>1,168,555. Coated glass fabrics. OWENSCORNING FIBERGLAS CORP. 6 March, 1967 [14 March, 1966]. No. 10456/67. Heading B2E. [Also in Divisions C3 and Dl] A finish coating on glass fabrics is obtained by applying to the fabric an aqueous composition comprising (a) an organopolysiloxane containing silicon-bonded hydrogen, (b) an incompletely cured water-insoluble fabric-finishing resin in emulsified form, the resin having reactive groups, and (e) a water-soluble difunctional organic compound, the functional groups of which are separated by more than 10 carbon atoms, a first of the functional groups being reactive with the silicon-bonded hydrogen of (a) and the other being reactive with the groups of (b). The proportions of (a), (b) and (c) are preferably 5 to 50%, 0.5 to 20% and 5 to 20%, respectively of the weight of the aqueous composition. Pigments and dyes may be added. Examples of fabricfinishing resins (b) are acrylic acid polymers and copolymers which may contain amino groups, and also mentioned are polyesters, polyamides, phenol-, urea- and melamine-formaldehyde resins, epoxy polymers and polyurethanes. The compounds specified as difunctional compounds (c) are water-soluble epoxy resins which have been modified by reaction with diethanolamine to replace one terminal glycidyl group by a hydroxyamine group or with a polyglycol to provide a hydroxypolyethenoxy group at one end. Other materials which may be used as (e) are polyglycols and straight chain polyesters, polyamines and polyamides. After drying and curing to form a film on the fabric, a water-proofing solution of a chromium organo complex may be applied.</p> |
