Method for producing low-melting-point renewable polyester for sheath-core polyester through glycol degradation
A technology of recycled polyester with low melting point, applied in filament/thread forming, conjugated synthetic polymer artificial filament, textile and papermaking, etc., which can solve problems such as poor stability, reduced production cost, and poor spinnability of fibers, Achieve stable quality, increase added value, and excellent quality
Active Publication Date: 2013-06-12
余姚大发化纤有限公司
5 Cites 22 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Abstract
The invention relates to a method for producing low-melting-point renewable polyester for sheath-core polyester. The low-melting-point renewable polyester is prepared from the following raw materials through degradation and polycondensation: (a) renewable raw materials; (b) glycol; (c) one or more of zinc acetate, potassium acetate, manganese acetate, magnesium acetate, lead acetate, cobalt chloride, tetrabutyl titanate, tetraisopropyl titanate and dibutyltin dilaurate; (d) one or more of m-phthalic acid, adipic acid and sebacic acid; (e) one or more of neopentyl glycol, hexanediol, butanediol and polyethylene glycol; (f) catalysts, namely antimony trioxide and cobalt acetate; and (g) a stabilizer, namely trimethyl phosphate. The low-melting-point renewable polyester produced by the method can be applied to the preparation of sheath-core polyester staple fibers, so that the added value of polyester wastes in preparation of renewable polyester staple fibers is increased, and the prepared sheath-core renewable polyester staple fibers have the characteristics of stable quality and excellent quality. The method can be applied to the production of industries, such as non-woven fabrics, flocking and composite materials.
Application Domain
Filament/thread formingConjugated synthetic polymer artificial filaments
Technology Topic
Decanedioic acidDibutyl tin dilaurate +22
Examples
- Experimental program(3)
Example Embodiment
Example Embodiment
Example Embodiment
PUM
Property | Measurement | Unit |
Intrinsic viscosity | 0.55 | dl/g |
Intrinsic viscosity | 0.79 | dl/g |
Melting point | 264.0 | °C |
Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
Method for extracting pigment and pectin from pineapple peels
Owner:JIMEI UNIV
Crape myrtle pavilion modeling method
Owner:TIANJIN UNIV
Method for preparing single-piece talcum powder
Owner:桂林龙胜正大粉体科技有限公司
Tobermorite and synthetic method thereof
Owner:内蒙古仁创沙漠资源利用研究院有限公司
High-intensity moisture permeable warp knitting layered mesh cloth based on mixed chemical fiber
Owner:FUJIAN JINJIANG HUAYU WEAVING
Classification and recommendation of technical efficacy words
- stable quality
- Increase added value
Board assembly
Owner:HONG KONG MEI LI SHENG FLOORING +1
Convenient preparation method of fermented pickled Chinese cabbage
Owner:UNI PRESIDENT ENTERPRISES CHINA INVESTMENT CO LTD KUNSHAN RES & DEV CENT +1
Synthetic method of low-solvent block silicone oil and hand feeling finishing agent containing low-solvent block silicone oil
Owner:ZHEJIANG QUEPING TEXTILE CHEM
Production method of high-capacity high-compaction lithium iron phosphate anode material
Owner:HENAN FUSEN NEW ENERGY TECH