109 results about "Butyl vinyl ether" patented technology

The invention discloses a perfluoroether composite air condition hose, comprising an internal rubber layer, a shielding layer, a middle rubber layer, an enhancement layer and an external layer which are arranged from inside to outside, wherein the internal rubber layer is made of a perfluoroether rubber material; the perfluoroether rubber material is synthesized from tetrafluoroethylene, perfluoromethyl vinyl ether and a third monomer containing vulcanization points; the third monomer has the general formula of CF2=CF-ORfX (X is -COOR, -CN, -OC6H5), and the optimal third monomer is perfluoro(4-cyano butyl vinyl ether), perfluoro(2-fluorophenyl propyl vinyl ether) or perfluoro(styrene); and the middle rubber layer is made of one of butyl rubber, chloroprene rubber, brombutyl rubber and chlorobutyl rubber, or the middle rubber layer is prepared by blending two or more of the butyl rubber, the chloroprene rubber, the brombutyl rubber and the chlorobutyl rubber. The perfluoroether composite air condition hose provided by the invention has the characteristics of strong penetration resistance, chemical corrosion resistance, high temperature and low temperature resistance, good vibration adsorption and low vibration noise, can meet the requirement on penetration resistance of novel refrigerant and replaces metal materials truly.

The invention provides a preparation method of organic tin-free vinyl chloride-isobutyl vinyl ether copolymer resin (chlorine ether resin for short). The preparation method comprises the steps of adding the materials including deionized water, an emulsifying agent, a buffer agent and the like into polymerizing kettle, heating to a specified temperature, adding an emulsified mixture of the materials including vinyl chloride, isobutyl vinyl ether, deionized water, an emulsifying agent, a buffer agent, stabilizers and the like and materials including an initiator and the like in a batch or continuous manner to generate polymerization, and adding the stabilizers in the later period of the reaction, so as to obtain the organic tin-free chlorine ether resin, wherein the stabilizers are substances containing non-organic tin stabilizers with epoxy groups. The prepared organic tin-free chlorine ether resin has good thermal stability and can be applied to the fields of ink, coatings and the like of tools, foods and medical products. The preparation method has the advantages that the chlorine ether resin does not contain organic tin and has good thermal stability.