Patent GB-444697-A (GB)
Title: Process for the manufacture of artificial masses
IPC: C08C19/14
Filed: 1934-09-25
Abstract: Plastic masses having a good resistance towards alkalies and acids, and capable of yielding clear non-adherant films are prepared by chlorinating polymerized halogen butadienes.  The preferred butadiene is polymerized 2-chlorobutadiene-1 : 3. After chlorination, the products may be stabilized either by emulsifying the reaction mixture with an aqueous sodium carbonate solution and subsequent heating to boiling, or by adding alkali to the precipitating bath, or by the addition of the products described in Specification 418,230.  The products which are obtained in accordance with the invention form a powdery mass which is soluble in most organic solvents, and compatible with natural and artificial resins, and also with softening and plasticizing agents such as phosphoric acid ester, phthalic acid ester, castor oil, and linseed oil.  Filling agents and organic dyestuffs may also be added.  In examples: (1) 100 parts of polymerized 2-chlorobutadiene-1 : 3 is chlorinated in carbon tetrachloride solution with 100 parts of chlorine, and the reaction product poured into methyl alcohol to precipitate the reaction product.  (2) the same solution of polymerization product as used in example 1 is chlorinated with 300 parts of chlorine, and after 6 hours the solution emulsified with a 5 per cent caustic soda solution and poured into water at 95 DEG  C. to precipitate the product.  (3) The chlorination product of example 2 was mixed with sodium carbonate and heated to boiling for 10 hours with stirring and then poured into water.  (4) The chlorination product of example 2 was heated to boiling for 5 hours and ammonia added to neutralize the hydrochloric acid liberated.ALSO:Plastic masses having a good resistance towards alkalies and acids, and capable of yielding clear non-adherent films are prepared by chlorinating polymerized halogen butadienes.  The preferred butadiene is polymerized 2-chlorobutadiene-1 : 3. After chlorination the products may be stabilized either by emulsifying the reaction mixture with an aqueous sodium carbonate solution, or by subsequent heating to boiling, or by adding alkali to the precipitating bath, or by the addition of the products described in Specification 418,230.  The products which are obtained in accordance with the invention form a powdery mass which is soluble in most organic solvents and compatible with natural and artificial resins and also with softening and plasticizing agents such as phosphoric acid ester, phthalic acid ester, castor oil and linseed oil.  Filling agents and organic dyestuffs may also be added.  In examples: (1) 100 parts of polymerized 2-chlorobutadiene-1 : 3 is chlorinated in carbon tetrachloride solution with 100 parts of chlorine, and the reaction product poured into methyl alcohol to precipitate the reaction products.  (2) The same solution of polymerization product as used in example 1 is chlorinated with 200 parts of chlorine, and after 6 hours the solution emulsified with a 5 per cent caustic soda solution, and poured into water at 95 DEG  C., to precipitate the product.  (3) The chlorination product of example p  2 was mixed with sodium carbonate and heated to boiling for 10 hours with stirring and then poured into water.  (4)  The chlorination product of example 2 was heated to boiling for 5 hours and ammonia added to neutralize the hydrochloric acid liberated.