Polyester hot melt adhesive used for back glue of carpet and preparation method thereof
A technology of polyester hot-melt adhesive and carpet adhesive, which is applied in the fields of adhesives, textiles, papermaking, and fiber processing, etc. It can solve the problems of few types of hot-melt adhesives, improve toughness and dry-cleaning resistance, low melt viscosity, and improve Effects of Surface Affinity and Operability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] In a 1.0L polymerization reactor with a distillation device, add dimethyl terephthalate (100.9g), 1,4-butanediol (60g), bisphenol A (66.2g), catalyst tetraethyl titanate Ester (0.012g), heating, when the internal temperature reaches 150°C, the material starts to melt, and then starts to stir; when the temperature rises to about 179°C, methanol begins to distill out, continue to heat up until the internal temperature reaches 195-198°C, wait for the distillation When the methyl alcohol reaches 90% of the theoretical amount, the transesterification reaction ends.
[0021] Add isophthalic acid (43.2g) and adipic acid (7.6g) to the above reactant, and then stir to raise the temperature. When the internal temperature rises to about 190°C, water begins to distill out, and the temperature is gradually raised to 215°C. After the distillate amount reaches 89% of the theoretical value, continue to heat up. When the internal temperature reaches 230°C, to further distill off the oli...
Embodiment 2
[0024] In a 1.0L polymerization reactor with a distillation device, add dimethyl terephthalate (100.9g), 1,4-butanediol (51.8g), bisphenol A (80.2g), catalyst tetratitanate Propyl ester (0.0426g), heating, when the internal temperature reaches 150°C, the material begins to melt, and then starts to stir; when the temperature rises to about 173°C, methanol begins to distill, continue to heat up until the internal temperature reaches 198-202°C, and wait for distillation When the methanol produced reached 88% of the theoretical amount, the transesterification reaction ended.
[0025] Add isophthalic acid (51.8g) and succinic acid (5.5g) to the above reactant, then stir and heat up. When the internal temperature rises to about 198°C, water begins to distill out, gradually warming up to 210°C, water After the distillate amount reaches 88% of the theoretical value, continue to heat up. When the internal temperature reaches 245 ° C, to further distill off the oligomers and excess alco...
Embodiment 3
[0028] In a 1.0L polymerization reactor with a distillation device, add dimethyl terephthalate (100.9g), 1,4-butanediol (51.8g), bisphenol A (63.2g), catalyst tetratitanate Butyl ester (0.044g), heating, when the internal temperature reaches 150°C, the material starts to melt, and then starts to stir; when the temperature rises to about 170°C, the methanol begins to distill, continue to heat up until the internal temperature reaches 190-195°C, and wait for distillation When the methanol produced reached 92% of the theoretical amount, the transesterification reaction ended.
[0029] Add isophthalic acid (56.1g) and adipic acid (14.8g) to the above reactant, then stir and heat up. When the internal temperature rises to about 203°C, water begins to distill out, and continue to heat up to 210°C. After the distillate amount reaches 88% of the theoretical value, continue to heat up. When the internal temperature reaches 218° C., to further distill off the oligomers and excess alcoho...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Melting point | aaaaa | aaaaa |
| Melt finger | aaaaa | aaaaa |
| Melting point | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More