polyols造句
1. Erythritol has a superior digestive tolerance to rival polyols, claims Cargill. All EU Member States will allow the use of erythritol by February 2008.
2. The polyether polyols prepared by these DMC catalysts are of low unsaturation, high relative molecular mass, narrow molecular distribution compared with traditional KOH catalysts.
3. The oversea and home market of polyols is becoming mature, competitive and promotive.
4. As the molar ratio of TDI to polyols was fixed at 2.1/1, relative more excess TDI was applied for 20 based copolymers which would cause more allophanate crosslinks.
5. The polyether polyols which has higher molecular weight, narrower molecular weight distribution and lower unsaturation can be prepared by using double metal cyanide (DMC) complex catalysts.
6. During the solid solid phase chang of the polyols and binary mixtures of polyhydric alcohols, -OH in the crystals of the polyols stretching vibration absorption center shifts with temperatures.
7. The influence of different blocking agents and polyols on the deblocking temperature was studied by differential scanning calorimetry(DSC) and thermogravimetric analysis(TGA).
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8. Polyurea polyols were determined and characterized by FTIR, NDJ-l viscosimeter , LG10-24 centrifugal machine, TEM and TG etc.
9. Polyester resins are the condensation products of polybasic acids and polyols.
10. This article has described the production of water-soluble alkyd resin and the formulation of pigmented paint, and discussed the choice of polyacid, polyols, co-solvents and additives.
11. A type of polyurethane resin cured at room temperature was prepared for making cast mould, which included two components i. e. polyester polyols A and polyisocyanate B.
12. It were investigated that the effects of some factors such as deblocking time, temperature, polyols and catalysts on the resin curing and its adhesive properties.
13. In this paper, the synthesis and application of rosin - polyols are summarized.
14. Polyether - type isocyanate prepolymers are prepared with polyether polyols and tolylene diisocyanate.
15. A moisture curable one component waterproof coatings was prepared from polyether polyols, petroleum asphalt, toluene diisocyanate, diluent and a compatibility modifier, etc.
16. But boron also exhibits rapid and significant phloem mobility in species for which sorbitol, mannitol, or dulcitol are the primary photosynthates since these polyols can effectively complex boron.
17. Macromolecule monomer with active groups is polycondensated with polyacid and polyols through esterification reaction to give saturated polyester that is well compatible with acrylic resin.
18. A aqueous polyurethane emulsion has been prepared based on polyether polyols and toluene diisocyanate.