Preparation of rubberized cord fabric
AssigneeThe B. F. Goodrich Company
InventorThomas S. Solomon
Life of this patent
Estimating the term…
Abstract
Deterioration of cord dip coating with resultant loss of adhesion of subsequently applied rubber to tire cords is avoided by using a cord dip composition including latex and an acrylic ester copolymer containing acrylic acid and methylol acrylamide.
Claims25
A process for preparing rubberized fabric free from significant deterioration in the adhesive bond of rubber to the fabric, which process comprises
- 1. dipping the fabric in an aqueous dispersion containing an adhesive latex of a diene polymer and a dispersion of an acrylic copolymer having most of the links in the polymer chain of the configuration ##EQU1## in which R is H, methyl, ethyl, Cl or CN, and in which X in a majority of the links is 0-alkyl where the alkyl group has from 1 to 4 carbon atoms, X in a minority of links is OH,
- 2.
A process for preparing rubberized cord fabric free from significant deterioration in the adhesive bond of rubber to the fabric, which process comprises
- 1. dipping an array of parallel cords under tension in an aqueous alkaline dispersion containing
- a. an adhesive latex of a diene polymer consisting in substantial part of a polymer made predominantly from butadiene and to a minor extent from styrene and vinyl pyridine,
- b. an alkali-soluble acrylic copolymer made predominantly from methyl methacrylate, to a minor extent from acrylic or methacrylic acid, and to an extent at least equivalent to that of the acid from N-methylol acrylamide,
- c. a soluble resorcinol-formaldehyde resin, and
- d. emulsified paraffin wax
- 2. drying under tension, and
- 3. subsequently rubberizing the fabric.
A rubberized fabric, consisting of textile material, which is coated with a thin film of a composition containing an adhesive diene polymer and an acrylic copolymer having most of the links in the polymer chain of the configuration ##EQU2## in which R is H, methyl, ethyl, Cl or CN, and in which X in a majority of the links is O-alkyl where the alkyl group has from 1 to 4 carbon atoms and X in a minority of the groups is OH, and the coated fabric is embedded in rubber.
Dependencies are inferred from the claim text.