9002-85-1

Usage

Uses

Used in Packaging Industry:
VINYLIDENE CHLORIDE LATEX is used as a packaging film for its excellent clarity, toughness, and impermeability to moisture and gases. The copolymers are made by extrusion and biaxial stretching, providing a strong and durable material for packaging applications.
Used in Textile Industry:
VINYLIDENE CHLORIDE LATEX is used as filaments for applications such as car upholstery, garden chair fabrics, and filter cloths. The filaments are made by melt extrusion and drawing, offering toughness, durability, and chemical resistance required for these applications.
Used in Coating Applications:
VINYLIDENE CHLORIDE LATEX is used as coatings for materials like cellophane, paper, and polyethylene. The coatings provide moisture and gas impermeability and are heat-sealable, making them suitable for various industrial coating needs.
Used in Chemical Processing:
VINYLIDENE CHLORIDE LATEX is used in the form of molding resins, extrusion resins, rigid barriers, containers, lacquer resin, and pipes for chemical processing. Its chemical properties, such as high melting point and resistance to solvents, make it suitable for these applications.
Used in Construction Industry:
VINYLIDENE CHLORIDE LATEX is used in the form of lattices for coating, providing a durable and protective layer for various construction materials.

Production Methods

PVDC polymerizes by both ionic and free-radical reactions. Free-radical polymerization of PVDC may be by solution, slurry, suspension, and emulsion methods. In copolymerization, usually one component is introduced to improve the processability or solubility of the polymer; others are added to modify specific properties. Properties modified by copolymerization depend on the content of components (structure, amounts, and types).

InChI:InChI=1/C2H2Cl2/c1-2(3)4/h1H2

Upstream product

• 74-84-0 ethane 
• 71-55-6 1,1,1-trichloroethane 
• 79-00-5 1,1,2-trichloroethane 
• 21985-81-9 ethyl β,β-dichlorovinyl sulfide 
• 108-90-7 chlorobenzene 
• 18083-51-7 dichloro(2,2-dichlorovinyl)methylsilane 
• 127-18-4 1,1,2,2-tetrachloroethylene 
• 79-01-6 Trichloroethylene 
• 107-06-2 1,2-dichloro-ethane 
• 79-34-5 1,1,2,2-tetrachloroethane 
• 7732-18-5 water 
• 75-34-3 1,1-dichloroethane 
• 463-71-8 thiophosgene 
• 156-59-2 cis-1,2-Dichloroethylene 

Downstream Products

• 4279-48-5 (1-chloro-vinyl)-phenyl ether 
• 90229-85-9 2-deutero-1,1,1-trichloroethane 
• 6483-79-0 dichloro-bis-(4-dimethylamino-phenyl)-methane 
• 99502-05-3 4-(1-chloro-vinyl)-benzoic acid 
• 14352-59-1 3,3-Dimethyl-octansaeure 
• 15954-58-2 3-(2,3,5,6-tetramethyl-phenyl)-propionic acid 
• 14352-58-0 (1-methylcyclohexyl)acetic acid 
• 18802-45-4 3-Phenyl-1,1-dichlor-1-fluor-butan 
• 15954-38-8 (3,3-dichloro-1-methylprop-2-ene-1-yl)benzene 
• 14202-14-3 acide dimethyl-3,5 adamantylacetique 
• 15954-44-6 1,1-Dichlor-3-(p-tert.-butyl-phenyl)-buten-⁽¹⁾ 
• 21157-26-6 3-(3-nitrophenyl)butanoic acid 
• 20839-51-4 3,3-bis-(4-nitro-phenyl)-propionic acid 
• 15954-42-4 1.1-Dichlor-3--buten-(1) 

Relevant academic research and scientific papers

A Method for the Rapid Dechlorination of Low Molecular Weight Chlorinated Hydrocarbons in Water

1,1,2-Trichloroethylene (TCE), 1,1-dichloroethylene, cis and trans-1,2-dichloroethylene and tetrachloroethylene (PCE), at concentrations of 20 ppm in aqueous solutions were rapidly hydrodechlorinated to ethane (in a few minutes), on the surface of palladized iron in batch experiments that were performed in closed vials. No intermediate reaction products such as 1,1-dichloroethylene, 1,2-dichloroethylenes and vinyl chloride were detected at concentrations > 1 ppm either in the headspace or in solution. The chloromethanes, CCl4, CHCl3 and CH2Cl2 were also dechlorinated to methane on palladized iron; the CCl4 was dechlorinated in a few minutes, the CHCl3, in less than an hour and the CH2Cl2, in 4-5 h. These results indicate that an above-ground treatment method can be designed for the treatment of groundwater contaminated with low molecular weight chlorinated hydrocarbons.

Method for eliminating hydrogen chloride by catalytic cracking of chloralkane

The invention discloses a method for eliminating hydrogen chloride by catalytic cracking of chloralkane, comprising the following steps of: carrying out a cracking reaction on chloralkane under the action of a biomass-based nitrogen-doped carbon catalyst to eliminate hydrogen chloride so as to prepare corresponding olefin, wherein the biomass-based nitrogen-doped carbon catalyst is prepared by carbonizing biomass or a mixture of biomass and a nitrogen source at 400-1000 DEG C, and the biomass is selected from at least one of bamboo processing leftovers, wood processing leftovers, plant straws,plant leaves, cereals, beans, cereal processing leftovers, bean processing leftovers and livestock manure. The method disclosed by the invention has the advantages of simple preparation process, easily available raw materials, low cost, strong process controllability, easiness in large-scale production, high catalytic cracking conversion rate of the chloralkane, high product selectivity, low energy consumption and the like.

Nitrogen-Doped Carbon-Assisted One-pot Tandem Reaction for Vinyl Chloride Production via Ethylene Oxychlorination

A bifunctional catalyst comprising CuCl2/Al2O3 and nitrogen-doped carbon was developed for an efficient one-pot ethylene oxychlorination process to produce vinyl chloride monomer (VCM) up to 76 % yield at 250 °C and under ambient pressure, which is higher than the conventional industrial two-step process (≈50 %) in a single pass. In the second bed, active sites containing N-functional groups on the metal-free N-doped carbon catalyzed both ethylene oxychlorination and ethylene dichloride (EDC) dehydrochlorination under the mild conditions. Benefitting from the bifunctionality of the N-doped carbon, VCM formation was intensified by the surface Cl*-looping of EDC dehydrochlorination and ethylene oxychlorination. Both reactions were enhanced by in situ consumption of surface Cl* by oxychlorination, in which Cl* was generated by EDC dehydrochlorination. This work offers a promising alternative pathway to VCM production via ethylene oxychlorination at mild conditions through a single pass reactor.

METHOD OF PRODUCING VINYL CHLORIDE

A method of producing vinyl chloride is provided in the present invention. The method includes the following steps. First, 1,2-dichloroethane (EDC) is introduced into a reactor, and a residence time of the EDC in an ionic liquid catalyst is 5 seconds to 100 seconds, so as to perform a catalytic cleavage reaction. The ionic liquid catalyst is in a liquid phase. The ionic liquid catalyst includes tributylalkyl phosphonium halide, and the alkyl includes an alkyl group having 3 to 16 carbon atoms.

Efficient Electrocatalysis for the Preparation of (Hetero)aryl Chlorides and Vinyl Chloride with 1,2-Dichloroethane

Although the application of 1,2-dichloroethane (DCE) as a chlorinating reagent in organic synthesis with the concomitant release of vinyl chloride as a useful byproduct is a fantastic idea, it still presents a tremendous challenge and has not yet been achieved because of the harsh dehydrochlorination conditions and the sluggish C?H chlorination process. Here we report a bifunctional electrocatalysis strategy for the catalytic dehydrochlorination of DCE at the cathode simultaneously with anodic oxidative aromatic chlorination using the released HCl as the chloride source for the efficient synthesis of value-added (hetero)aryl chlorides. The mildness and practicality of the protocol was further demonstrated by the efficient late-stage chlorination of bioactive molecules.

New method for synthesizing ranitidine

The invention discloses a new method for synthesizing ranitidine. The method comprises the steps of synthesizing vinylidene chloride, synthesizing 1, 1-dichloro-2-nitroethylene, carrying out a ring-closing reaction, carrying out a ring-opening reaction in presence of a desiccant, and synthesizing the ranitidine. The method adopts an anhydrous environment in the preparation process of a ring-opening product, thus avoiding the interference with the reaction and the generation of impurities due to the presence of water, reducing the post-treatment work and increasing the utilization rate of the raw materials. The preparation method provided by the invention effectively increases the reaction yield of the ring-opening product, improves the purity of the ring-opening reaction, and reduces the reaction time; therefore, the yield and purity of the product ranitidine are improved, the production cost is lowered, and the method is more beneficial to industrial production.

Method for synthesizing ranitidine

A method for synthesizing ranitidine includes following steps: 1), dropwise adding sodium hydroxide water solution into 1, 1, 2-trichloroethane at 30-35 DEG C for reaction to obtain vinylidene chloride, wherein a mass ratio of 1, 1, 2-trichloroethan to sodium hydroxide is 1:0.3-0.33; 2), dropwise adding vinylidene chloride into mixed acid of concentrated hydrochloric acid and concentrated nitric acid at 20-25 DEG C for reaction for 2-4h, wherein a consumption ratio of vinylidene chloride to the mixed acid is 1:2-3; 3), adding cysteamine hydrochloride into sodium hydroxide and potassium hydroxide solution, and dropwise adding a product of the step 2) at 50-55 DEG C to obtain a closed-loop product; 4), enabling the closed-loop product to react with alcohol or methanol solution at room temperature for 14-18h to obtain an open-loop product; 5), adding the open-loop product and 2-[(dimethylamino)methyl]-5 chloromethyl-furan into potassium hydroxide or sodium hydroxide water solution for reaction at 40-50 DEG C for 2-4h to obtain ranitidine. The method lowers potential safety hazards and is simple and easy for industrial production.

LJ reaction in the preparation wittich reagent and application of glufosinate in

The present invention relates to an application of a new LJ intramolecular isomerization reaction in preparation of a wittig reagent and a herbicide of glufosinate-ammonium. With the application, a new approach of a synthesis route for preparing the wittig reagent and the glufosinate-ammonium is developed, the disadvantages of the existing wittig reaction are improved, and the industrial design of the glufosinate-ammonium production is improved.

PROCESS FOR THE PRODUCTION OF ETHYLENE, VINYLIDENE, AND HYDROGEN CHLORIDE FROM ETHANE

A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce vinylidene (1,1-dichloroethylene), hydrogen chloride and ethylene.

PROCESS FOR THE PRODUCTION OF ETHYLENE, VINYLIDENE, AND HYDROGEN CHLORIDE FROM ETHANE

A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce vinylidene (1,1 dichloroethylene), hydrogen chloride and ethylene.