Patent GB-438540-A (GB)
Title: Improvements in or relating to compositions and articles containing organic derivatives of cellulose
IPC: C08K5/10
Filed: 1934-02-19
Abstract: Compositions comprise organic cellulose derivatives which are plasticized by the addition of monomeric esters of polycarboxylic acids containing residues of dihydric alcohols acylated with monocarboxylic acids.  The plasticizers are prepared by (1) the acylation of oxy-alkyl esters of polycarboxylic acids, (2) reaction between a salt of a polycarboxylic acid and a halogenalkyl ester of a fatty acid, (3) the partial hydrolysis of esters of polycarboxylic acids containing more than one acylated dihydric alcohol residue. Polycarboxylic acids mentioned are phthalic acid and its halogen or alkyl substitution products; malonic, glutaric, succinic and tartaric acids and their substitution products.  Esters specified are b -acetoxyethyl-b -methoxyethyl-, b -acetoxyethyl - b  - ethoxyethyl-, b -acetoxyethyl-b -oxyethyl- and di-b -acetoxyethyl - phthalates. The compositions are made up with the same ingredients (cellulose derivatives except nitro-cellulose, synthetic resins, solvents and diluents, other plasticizers, filling materials, anti-acid bodies and non-inflammators), and are used for the same purposes, as the compositions described in Specification 418,506.  The plasticizer may be introduced into the product in any way, special reference being made to the methods described in Specifications 354,860 and 354,861, [both in Group V].  The example describes a composition for the manufacture of lacquers and insulated coatings consisting of cellulose acetate, polyvinyl acetate, b -methoxyethyl-b -acetoxyethyl-phthalate, acetone, benzene and alcohol in stated proportions.  Specification 207,562, [Class 2 (ii)], also is referred to.ALSO:Coating-compositions comprise organic cellulose derivatives which are plasticized by the addition of monomeric esters of polycarboxylic acids containing residues of dihydric alcohols acylated with monocarboxylic acids.  Polycarboxylic acids mentioned are phthalic acid and its halogen or alkyl substitution products; malonic, glutaric, succinic and tartaric acids and their substitution products.  Esters specified are b -acetoxyethyl-b -methoxyethyl-, b -acetoxyethyl-b -ethoxyethyl-, b -acetoxyethyl-b -oxyethyl- and di-b -acetoxyethylphthalates. The compositions are made up with the same ingredients (cellulose derivatives except nitrocellulose, synthetic resins, solvents and diluents, other plasticizers, filling materials, anti-acid bodies and non-inflammators), and are used for the same purposes, as the compositions described in Specification 418,506. The plasticizer may be introduced into the product in any way, special reference being made to the methods described in Specifications 354,860 and 354,861, [both in Group V].  The example describes a composition for the manufacture of lacquers and insulated coatings consisting of cellulose acetate, polyvinyl acetate, b -methoxyethyl-b -acetoxyethyl-phthalate, acetone, benzene and alcohol in stated proportions.  Specification 207,562, [Class 2 (ii)], also is referred to.ALSO:Compositions comprise organic cellulose derivatives which are plasticized by the addition of monomeric esters of polycarboxylic acids containing residues of dihydric alcohols acylated with monocarboxylic acids.  Polycarboxylic acids mentioned are phthalic acid and its halogen or alkyl substitution products; malonic, glutaric, succinic and tartaric acids and their substitution products.  Esters specified are b  - acetoxyethyl - b  - methoxyethyl-, b -acetoxyethyl-b -ethoxyethyl-, b -acetoxyethyl-b -oxyethyl- and di-b -acetoxyethylphthalates. The compositions are made up with the same ingredients (cellulose derivatives except nitrocellulose, synthetic resins, solvents and diluents, other plasticizers, filling materials, anti-acid bodies and non-inflammators), and are used for the same purposes, as the compositions described in Specification 418,506.  The plasticizer may be introduced into the product in any way, special reference being made to the methods described in Specifications 354,860 and 354,861. The example describes a composition for the manufacture of lacquers and insulated coatings consisting of cellulose acetate, polyvinyl acetate, b -methoxyethyl-b -acetoxyethylphthalate, acetone, benzene and alcohol in stated proportions.  Specification 207,562, [Class 2 (ii)], also is referred to.