Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Thermoplastic composition for dental impression as well as preparation method and application of thermoplastic composition

A thermoplastic composition and thermoplastic polymer technology, applied in dental preparations, materials for dental impressions, dentistry, etc., can solve the problems of cumbersome operation, inaccurate material collection, easy deformation, etc., and achieve simple impression taking and high flexural strength , the effect of moderate modulus

Inactive Publication Date: 2019-03-12
吉林省登泰克牙科材料有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the printing films in the prior art use silicone rubber and gypsum back and forth to mold. Although silicone rubber has high precision, due to its easy deformation, inaccurate materials are often obtained during the back and forth molding process, and the operation is cumbersome.

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0048] The present invention provides a method for preparing a thermoplastic composition for dental stamping described in any one of the above technical solutions, comprising:

[0049] It is obtained by heating and mixing the first thermoplastic polymer, the second thermoplastic polymer and a plasticizer, and pouring.

[0050] The invention mixes the first thermoplastic polymer, the second thermoplastic polymer and the plasticizer in a high-temperature mixing tank.

[0051] In the present invention, the mass ratio of the first thermoplastic polymer, the second thermoplastic polymer and the plasticizer is preferably (15-45): (40-80): (1-10); more preferably (20 ~40): (50~75): (2~10); most preferably (20~35): (60~70): (5~10).

[0052] The first thermoplastic polymer of the present invention includes one or more of polyurethane, polyketone, polycarbonate and polyhydroxybutyrate; the second thermoplastic polymer includes polylactic acid, polyglycolide and polyhexamethylene One o...

Embodiment 1

[0061] The following components were stirred together to form a thermoplastic impression material (mass %):

[0062] Polyhydroxybutyrate 20

[0063] Polycaprolactone 70

[0064] Petroleum ether 10

[0065] The above-mentioned components are heated and mixed in a high-temperature mixing tank at 130°C for 3 to 8 hours, and then poured into a strip shape of 5cm*1cm*0.5cm to form a thermoplastic impression material.

[0066] The flexural strength is 80~120MPa, the modulus is 1~2GPa, and the softening point is 60~80℃.

Embodiment 2

[0068] The following components were stirred together to form a thermoplastic impression material (mass %):

[0069] polycarbonate 10

[0070] Polyglycolide 80

[0071] Petroleum ether 10

[0072] The above-mentioned components are heated and mixed in a high-temperature mixing tank at 130°C for 3 to 8 hours, and then poured into a strip shape of 5cm*1cm*0.5cm to form a thermoplastic impression material.

[0073] The flexural strength is 80~120MPa, the modulus is 1~2GPa, and the softening point is 60~80℃.

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
softening pointaaaaaaaaaa
softening pointaaaaaaaaaa
softening pointaaaaaaaaaa
Login to View More

Abstract

The invention provides a thermoplastic composition for dental impression. The thermoplastic composition is prepared from a first thermoplastic polymer, a second thermoplastic polymer and a plasticizer, wherein the first thermoplastic polymer is prepared from one or more of polyurethane, polyketone, polycarbonate and polyhydroxybutyrate; the second thermoplastic polymer is prepared from one or moreof polylactic acid, polyglycollide and polycaprolactone. By utilizing a synergistic action of the specific first thermoplastic polymer and the specific second thermoplastic polymer and combining theplasticizer, the thermoplastic composition for dental impression can realize one-time impression, and is moderate in softening point and modulus and simple in mould taking. The experimental results show that the softening point of the composition provided by the invention is 60-80 DEG C, the flexural strength is 80MPa or above, and the modulus is 2GPa or below; the thermoplastic composition facilitates the operation of doctors and patients, and fills the gap in the industry.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a thermoplastic composition for dental impression film, its preparation method and application. Background technique [0002] Materials for making impressions (negative molds) of teeth and soft and hard tissues of the oral cavity. An impression is a negative model of an object that records or reproduces the morphology of teeth and oral tissues and their relationship. Elastic and inelastic, reversible and irreversible impression materials. [0003] Impression materials are often used by dentists for immediate temporary operations such as inlay restorations. Most of the printing films in the prior art use silicone rubber and gypsum to pour back and forth. Although silicone rubber has high precision, due to its easy deformation, inaccurate material selection often occurs during the back and forth pouring of the mold, and the operation is cumbersome. Therefore, the development o...

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 Applications(China)
IPC IPC(8): A61K6/10A61K6/90
CPCA61K6/90C08L75/04C08L69/00C08L67/04
Inventor 闫鹏涛吴慧慕琪
Owner 吉林省登泰克牙科材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com