Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of transparent nucleating agent and its preparation method and application

A technology of transparent nucleating agent and compound, which is applied in the preparation of carboxylate, carboxylate, and urea derivatives, etc., can solve the problems of inability to directly transmit light and opacity of crystalline polymers, so as to improve the beauty and change the crystallization. temperature, the effect of increasing the crystallization rate

Active Publication Date: 2018-09-04
孙志强
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, because polymers have two phases of crystal region and amorphous region, visible light birefringence occurs between the two phase interfaces and cannot directly transmit light, so generally crystalline polymers are opaque.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of transparent nucleating agent and its preparation method and application
  • A kind of transparent nucleating agent and its preparation method and application
  • A kind of transparent nucleating agent and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: the preparation of uramide salt of 4-tert-butylbenzoic acid

[0047]

[0048] In a four-neck flask, add 250mL of formic acid, 17.82g (0.1mol) of 4-tert-butylbenzoic acid and 6g of carbonamide, and heat for 3 hours under the conditions of pH 7.5 and temperature 50°C while reflux After stirring, the crystals were concentrated to obtain 20 g of white solid with a yield of 83.4%.

Embodiment 2

[0049] Embodiment 2: the preparation of 4-tert-butylbenzoic acid amine salt

[0050]

[0051] In a four-neck flask, add 400mL of water, 17.82g (0.1mol) of 4-tert-butylbenzoic acid and 7mL of 25% ammonia water, and heat for 1.5 hours at a pH of 8 and a temperature of 55°C while refluxing After stirring, the crystals were concentrated to obtain 16 g of white solid with a yield of 83.4%.

Embodiment 3

[0052] Example 3: Preparation of 4-tert-butyl-N,N-dimethyl-benzoic acid amine salt

[0053]

[0054] In a four-neck flask, add 400mL of methanol, 200mL of ethanol, 17.82g (0.1mol) of 4-tert-butylbenzoic acid and 11.25mL of 40% dimethylamine aqueous solution, at a pH of 7.5 and a temperature of 60°C Heated for 2 hours while stirring under reflux, and then concentrated the crystals to obtain 17 g of a white solid with a yield of 76%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
hazeaaaaaaaaaa
Login to View More

Abstract

Provided are a transparent nucleating agent, a preparation method therefor and the use thereof, wherein the transparent nucleating agent comprises a compound represented by formula (1) and a derivative thereof; the method comprises: bringing a compound represented by formula (3) into contact with a compound represented by formula (4) in a solvent, and concentrating and crystallizing same; and there is provided the use of the transparent nucleating agent in a thermoplastic plastic. By means of the method of the present invention, a transparent nucleating agent can be obtained, and the use of the transparent nucleating agent of the present invention or the transparent nucleating agent prepared by means of the method of the present invention can effectively improve the rate of the crystallization of a polyolefin, change the crystal size and the crystallization temperature of the polyolefin, improve the aesthetic quality of a polymer article and give a good visual quality. Especially in the case of polyolefins such as polypropylene and polyethylene, the transparent nucleating agent of the present invention has irreplaceable superiority.

Description

technical field [0001] The present invention relates to a transparent nucleating agent and its preparation method and use, more specifically, to a transparent nucleating agent and its preparation method and use. The transparent nucleating agent comprises a compound represented by formula (1) and its derivative. Background technique [0002] During the crystallization process of polymers, some crystallization-promoting substances are usually artificially added, which act as crystal nuclei during the crystallization process, so they are called nucleating agents. Nucleating agents are often encountered in the crystallization of small molecules, but few people have proposed this concept. If there are impurities in the small molecule crystals, the crystallization speed will be accelerated, and the crystals will become smaller or imperfect crystals will appear. The rapid crystallization phenomenon that sometimes occurs when some impurity or a small amount of crystal nuclei (that...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07C51/41C07C63/04C07C273/02C07C209/00C07C211/05C07C211/06C07C211/07C07C211/27C07C211/55C07C211/46C07C213/08C07C215/08C07C215/12C08K5/09C08K5/19C08L23/12
CPCC07C51/412C07C63/04C07C209/00C07C211/05C07C211/06C07C211/07C07C211/27C07C211/46C07C211/55C07C213/08C07C215/08C07C215/12C07C273/02C08K5/09C08K5/19C08L23/12
Inventor 孙志强段军堂孙钰涵
Owner 孙志强
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com