| 摘要 |
<p>A composition suitable for coating flexible material comprises 100 parts by weight of rubber hydrochloride, 15 to 100 parts of chlorinated rubber, 5 to 40 parts of microcrystalline wax, and 5 to 100 parts of a copolymer of butadiene and acrylonitrile dissolved in a solvent such as benzene, toluene, or tetrahydrofurane. The composition may be used as an adhesive for paper to rubber hydrochloride, or as a coating for paper, metal foil, glassine, or regenerated cellulose, and as a protective layer for cheese. Ester gum, terpene resins, coumarone-indene resins, resin-modified phenol formaldehyde resins, magnesium carbonate and mercaptobenzthiazole disulphide may also be added.ALSO:A composition suitable for coating flexible sheet material comprises chlorinated rubber and rubber hydrochloride dissolved in a mutual solvent. Preferred compositions comprise 100 parts by weight of rubber hydrochloride, 15 to 100 parts of chlorinated rubber, 5 to 40 parts of microcrystalline wax, and 5 to 100 parts of a copolymer of butadiene with acrylonitrile dissolved in a solvent such as benzene, toluene, or tetrahydrofurane. The composition may be used as an adhesive for paper to rubber hydro-chloride, or as a coating for paper, metal foil, glassine, or regenerated cellulose, and as a protective layer for cheese. Ester gum, terpene resins, coumarone-indene resins, resin-modified phenol formaldehyde resins, magnesium carbonate and mercaptobenzthiazole disulphide may also be added.ALSO:Cheese, bacon, luncheon meat, butter, lard, and fats may be kept impervious to air by wrapping in paper or viscose sheet containers which have been coated with a composition compising chlorinated rubber and rubber hydrochloride dissolved in a mutual solvent.</p> |
