Polyvinyl Chloride (PVC) Materials
Patents with Abstracts
Patents with Abstracts
Polyvinyl chloride resin compositions and manufacturing method therefor
Kato et al of Kuraray Co., Ltd., Japan, developed a polyvinyl chloride material with 0.005 to 5 parts by weight of a polyvinyl alcohol having a viscosity average degree of polymerization of from 100 to 3000 and having a ratio Mw/Mn of a weight average molecular weight Mw to a number average molecular weight Mn of from 2.2 to 4.9; and from 0.01 to 5 parts by weight of a zinc compound, based on 100 parts by weight of a polyvinyl chloride resin. A polyvinyl chloride resin composition is thereby provided that enables to obtain a shaped article thereof excellent in thermal stability while being shaped and less colored. (RDC 11/6/2012)
Plasticised polyvinyl chloride
Gosse et al of ExxonMobil, Texas, developed esters of cyclohexane polycarboxylic acids as plasticizers for polyvinyl chloride to enable products with comparable mechanical properties to be obtained using less polyvinyl chloride. Use of these esters also produces formulations with increased stability to ultra-violet light, improved low temperature properties, lower viscosity and improved processability as well as reduced smoke on burning. The esters of cyclohexane polycarboxylic acids may be used alone or in admixture with other plasticizers when the esters of cyclohexane polycarboxylic acids may act as viscosity depressants. Fast fusing plasticizers may also be included. The formulations are particularly useful in the production of a range of goods from semi-rigid to highly flexible materials and are particularly useful in the production of medical materials such as blood bags and tubing. (RDC 10/17/2012)
Composition for manufacturing heat ray-shielding polyvinyl chloride film and manufacturing method of the same, and heat ray-shielding polyvinyl chloride film
Fujita of Sumitomo Metal Mining Co., Ltd., developed a heat ray-shielding polyvinyl chloride film by dispersing tungsten oxide nanoparticles, WOx ,and/or the composite tungsten oxide nanoparticles expressed by a general formula MyWOz ,and having a hexaboride crystal structure, and a dispersant, in an organic solvent; obtaining a mixture by mixing a plasticizer for manufacturing a polyvinyl chloride, into this dispersion liquid; and obtaining a composition for manufacturing the heat ray-shielding polyvinyl chloride film by using a vacuum distillation method and removing the organic solvent from this mixture until a concentration of the solvent is 5 wt % or less. (RDC 9/19/2012)
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Roger D. Corneliussen
Maro Polymer Links
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Copyright 2012 by Roger D. Corneliussen.
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** Date of latest addition; date of first entry is 9/20/2012.